| Caterpillar Inc. Patent applications |
| Patent application number | Title | Published |
|---|
| 20120130601 | Implement induced machine pitch detection - A system for detecting pitch of a machine caused by operation of a machine implement is provided. The system may include an inclination sensor for sensing inclination of the machine and producing inclination data representing inclination of the machine over time. An acceleration sensor for sensing acceleration of the machine and producing acceleration data representing acceleration of the machine over time can be provided. A controller in communication with the inclination and acceleration sensors respectively receives the inclination and acceleration data. The controller can be configured to process the inclination data so as to detect a sudden inclination change and to process the acceleration data so as to detect a sudden acceleration change. The controller can be further configured to determine a machine pitch condition upon concurrently detecting a sudden inclination change and a sudden acceleration change. | 05-24-2012 |
| 20120130600 | MOTOR GRADER WHEEL SLIP CONTROL FOR CUT TO GRADE - The described system and method are implemented within a motor grader or other machine for grading of surfaces, wherein the machine includes a ground engaging element, as well as one or more blades for removing surface material. In this context, the described system and method prevent slippage of the ground engaging element against the underlying surface. In an embodiment, a torque limit is applied, wherein the torque limit corresponds to a torque that is less than that required for slippage under the current operating conditions, thus avoiding the problems caused by both overly aggressive and overly conservative cut depth strategies. | 05-24-2012 |
| 20120130599 | Control system for a machine - A control system and method operate to store target signals indicative of end of travel positions of components of a machine. The positions and velocities of the components of a machine are determined at least in part based upon signals received from sensors and command signals are generated to control movement of the components based upon input from an operator, proximate to the end of travel positions and the velocities of the components. Command signals are transmitted to control movement of the components. Multiple end of travel positions may also be defined. | 05-24-2012 |
| 20120125730 | METHOD OF SYNCHRONIZING IN SPLIT TORQUE CONTINUOUSLY VARIABLE DUAL CLUTCH TRANSMISSION - A method including activating a first clutch assembly to connect a first rotatable member to a rotating final output member until a shift trigger point is reached to provide a rotational speed to the first rotatable member from the final output member. The first clutch assembly is then deactivated. The second clutch assembly that connected a synchronized second rotatable member with the final output member is then deactivated. A third synchronizer engaged with the first rotatable member, and the first clutch assembly is activated to connect the first rotatable member to the final output member. | 05-24-2012 |
| 20120125276 | FOUR STROKE INTERNAL COMBUSTION ENGINE HAVING VARIABLE VALVE TIMING AND METHOD - A four stroke internal combustion includes at least one cylinder and at least one intake valve associated with the cylinder. The intake valve is configured to open and close over a predetermined range of crankshaft rotation in accordance with a Miller thermodynamic cycle. An electronic controller receives at least one input signal indicative of an amount of air and/or an amount of air/fuel mixture in cylinder. The electronic controller is configured to provide a timing phase signal that operates to adjust a timing of operation of the intake valve based on the input signal(s) such that a torque output of the engine is maintained substantially constant over a predetermined range of engine speed by shifting the predetermined range of crankshaft rotation. | 05-24-2012 |
| 20120125271 | ENGINE SYSTEM WITH AIR DIVERTER - A disclosed engine system includes an engine having upper and lower portions, an ancillary component positioned above the upper portion of the engine and having upper and lower portions, and an air diverter adjacent to both the upper portion of the engine and the lower portion of the ancillary component. | 05-24-2012 |
| 20120121320 | Retaining Ring for Track Undercarriage Link Pin - A track undercarriage link includes a bore for accommodating a pin. The bore may include an annular recess for accommodating part of a retaining ring. The pin may include a peripheral recess for accommodating part of the retaining ring as well. The retaining ring may include a strip that includes a first end and a second end. The strip may form at least one concentric ring with a gap disposed between the two ends. The gap may form a transition section that include a first section disposed adjacent the first end of the strip and a second section disposed adjacent the send end of the strip. A ramp may be disposed between the first and second sections. The ramp and the sections may enable a flathead screwdriver or other blunt object to be slid underneath the first or second end of the strip to facilitate removal of the retaining ring from the pin and therefore removal of the pin from the bore of the track undercarriage link. | 05-17-2012 |
| 20120119567 | Cartridge Seal for Track Chain Bushing - A cartridge for a track chain used to propel a track machine is disclosed. The cartridge includes a pin that passes axially through a bushing. The bushing may include two opposing ends and a cylindrical outer surface extending between the opposing ends of the bushing. Each end of the bushing includes an annular seal pocket for accommodating a seal and an annular step groove for coupling each end of the bushing to an inner track link. The bushing may be axially disposed between two inserts and the seals are track seals that engage one of the inserts. The inserts may be axially disposed between two collars and the collars are coupled to the pin. The collars may also include annular seal pockets that accommodate track seals. | 05-17-2012 |
| 20120118717 | Actuator for a Rocker Switch - A rocker switch may include a housing and an actuator pivotably mounted relative to the housing for movement between an initial position and an actuated position. The actuator may include an exterior face defining a first contact surface and a second contact surface, the first contact surface being substantially planar and disposed within a first contact plane, and the second contact surface being substantially planar and disposed within a second contact plane, wherein the second contact plane is spaced from and substantially parallel to the first contact plane. The contact surfaces are oriented to clearly indicate, by look and/or feel, whether the rocker switch is in a first position or a second position, thereby allowing a position of the switch to be readily discerned | 05-17-2012 |
| 20120118079 | TORQUE COEFFICIENT MEASURING DEVICE - A torque coefficient measuring device can be used to measure an axial load produced by a torque applied to a threaded component which is mounted to the fixture. The measuring device can include a base defining a chamber therein. A load sensor is disposed within the chamber of the base. A movable load pin is housed within the base and arranged such that an axial load placed upon the load pin is transmitted to the load sensor. An attachment member is adapted to be connected with the threaded component. The attachment member is operably arranged with the load pin such that a torque applied to a threaded component mounted to the attachment member places an axial load upon the load pin. | 05-17-2012 |
| 20120116627 | Engine load management for traction vehicles - An electric drive system includes a fuel-driven engine ( | 05-10-2012 |
| 20120116619 | SYSTEM AND METHOD FOR CONTROLLING WHEEL MOTOR TORQUE IN AN ELECTRIC DRIVE SYSTEM - The disclosure describes, in one aspect, a system for a machine having an electric drive configuration. The system includes a first motor associated with a first wheel, the first motor adapted to provide torque to drive the first wheel, a second motor associated with a second wheel, the second motor adapted to provide torque to drive the second wheel. The system further includes a controller adapted to determine a rotational speed of the first wheel, determine a rotational speed of the second wheel, determine a steering angle of the machine, compare the rotational speeds of the first and second wheels, and adjust the torque to the first wheel if the rotational speed of the first wheel is less than the rotational speed of the second wheel. | 05-10-2012 |
| 20120116618 | SYSTEM AND METHOD FOR CONTROLLING TRACTION - A traction control system for a machine having an electric drive configuration is disclosed. The fraction control system includes an electric motor associated with at least one wheel and adapted to provide braking torque to the wheel. The control system further includes a controller configured to determine a rotational speed of the at least one wheel, compare the rotational speed to an allowable slide threshold, and adjust the braking torque to the at least one wheel during retarding if the speed is less than the allowable slide threshold. | 05-10-2012 |
| 20120114416 | VIBRATORY COMPACTOR - A vibratory compactor machine includes a machine frame and a roller drum rotatably coupled to the frame and rotatable about a drum axis oriented generally traverse to the direction of travel of the machine. A vibration assembly is disposed inside the roller drum. The vibration assembly includes a first eccentric member and a second eccentric member rotatably disposed in the roller drum and rotatable about a respective first and second eccentric axes orientated perpendicularly to the drum axis. The roller drum rotates about the drum axis independently of the vibration assembly and the first and second eccentric members. | 05-10-2012 |
| 20120111965 | Fuel Injector With Needle Control System That Includes F, A, Z And E Orifices - A common rail fuel injector includes a needle valve member that moves to open and close nozzle outlets for a fuel injection event responsive to pressure in a needle control chamber. Between injection events, the needle control chamber is fluidly connected to the fuel inlet by a first pathway that includes a Z orifice, and fluidly connected to the fuel inlet by a second pathway that includes an F orifice, an intermediate chamber and an A orifice. During an injection event, the needle control chamber is fluidly connected to a drain outlet by a third pathway that includes the A orifice, the intermediate chamber and an E orifice. Different performance characteristics are achieved by adjusting the sizes of the respective of F, A, Z and E orifices. | 05-10-2012 |
| 20120110985 | METHOD AND CONTROL SYSTEM FOR A VALVE - A method of controlling a valve and a control system in a machine having an internal combustion engine, the system including the valve and an associated motor, and a temperature sensor that supplies a temperature signal to a controller in electrical communication with the motor. The controller supplies a closing current to the motor at a temperature signal corresponding to a temperature no greater than a preset temperature parameter, the closing current being at or above a nominal operating current of the motor and being furnished for a preset period of time. | 05-10-2012 |
| 20120107644 | Localized Induction Heating For Residual Stress Optimization - An apparatus for the heat-treating of a heat-hardenable steel cruciform article having a weld seam includes a heating element to heat the weld seam to a point that an austenitic transformation occurs, and a quenching chamber to cool the weld seam, causing the formation of Martensite and an associated expansion. The quenching is rapid since slow quenching may allow a crystalline phase other than martensite to form. The apparatus may comprise rollers operable to convey the welded cruciform article through the apparatus at a speed such that the weld seam is subjected to heating for a predetermined heat time sufficient to cause a formation of martensite there within, and such that the heated portion reaches the quenching chamber and is quenched to create a substantial amount of martensite, e.g., an amount sufficient to cause expansion of the part. | 05-03-2012 |
| 20120107045 | Compactor System And Methods - A compactor system includes a tipped drum having a plurality of tips, and a drum axle rotatably coupling the tipped drum to a frame. The compactor system further includes a sensor configured to sense a parameter indicative of a height of the drum axle above a surface of a material substrate, and an electronic control unit configured to output a compaction progress signal responsive to inputs from the sensor. Related methods of preparing a work area with a compactor system, and determining a compaction state of a material substrate, are also disclosed. | 05-03-2012 |
| 20120103712 | SKID STEER MACHINE HAVING PIVOTABLY MOUNTED COOLING SYSTEM AND NON-METALLIC VIBRATION ISOLATOR - A skid steer machine includes an operator cage supported on a skid steer machine frame. A pair of lift arms are pivotably attached to the skid steer machine frame behind the operator cage and extend longitudinally on both sides of the operator cage. A cooling package includes a first heat exchanger and a second heat exchanger, and a blower fan configured to blow air in parallel through the first heat exchanger and the second heat exchanger. The cooling package is pivotably mounted to the skid steer machine frame using at least one pivotable mounting assembly and is pivotable between an operational position and a maintenance position. At least one non-metallic vibration isolator is positioned between the cooling package and the skid steer machine frame. | 05-03-2012 |
| 20120103711 | DIESEL PARTICULATE FILTER PACKAGING AND METHOD OF DIRECTING AIRFLOW IN A SKID STEER MACHINE - A skid steer machine includes an operator cage supported on a skid steer machine frame, a pair of lift arms pivotably attached to the skid steer machine frame behind the operator cage and extending longitudinally on both sides of the operator cage, and a rear mounted engine compartment supported on the skid steer machine frame. The rear mounted engine compartment includes an internal combustion engine, a diesel particulate filter fluidly connected to the internal combustion engine and positioned between the internal combustion engine and the operator cage, and a cooling package having a predominantly horizontal orientation. The cooling package is at a higher location within the rear mounted engine compartment than the diesel particulate filter. | 05-03-2012 |
| 20120103704 | Integrated Track Adjustment/Recoil System Unit And Track Type Machine Using Same - A track type machine includes an integrated track adjustment/recoil system unit cantilever mounted in a track roller frame, and operable to resist movement of the idler along a recoil line. The integrated track adjustment/recoil system unit includes track adjust cylinder that is attached to a gas cylinder by a joining component that has two sets of identical external threads mated to the track adjust cylinder and the gas cylinder respectively. A track adjust piston is partially received in the track adjust cylinder, and a recoil piston is positioned in the gas cylinder. The recoil piston and the gas cylinder define a gas volume. The recoil piston, the gas cylinder, the joining component, the track adjust cylinder and the track adjust piston define a grease volume. Track tensioning is adjusted by adjusting the amount of grease in the grease volume, and the recoil action is adjusted by setting the gas pressure in the gas volume. | 05-03-2012 |
| 20120103311 | Internal combustion engine and method of operating such engine - A method of operating a combustion engine including causing an intake stroke in a first cylinder, causing a compression stroke in the first cylinder thereby creating pressurized fluid and releasing pressurized fluid from the first cylinder. The method further includes cooling the released fluid, directing the cooled fluid into a second cylinder over a first period of time and injecting fuel into the second cylinder over a second period of time whereby the first and second periods of time at least partially overlap. | 05-03-2012 |
| 20120102919 | METHOD OF MIXING EXHAUST GAS EXITING AN EXHAUST STACK OUTLET WITH COOLING AIR EXITING A COOLING PACKAGE OUTLET INCLUDING A REGENERATION CONTROL ALGORITHM AND MACHINE USING SAME - A machine includes an internal combustion engine disposed within an engine compartment and supported on a machine frame. An exhaust stack has an inlet fluidly connected to an exhaust manifold of the internal combustion engine and an outlet in fluid communication with ambient air. A diesel particulate filter is disposed along the exhaust stack, and the machine includes an active regeneration system for regenerating the diesel particulate filter. A cooling package including at least one heat exchanger and a blower fan. The blower fan is configured to blow cooling air from the engine compartment sequentially through the at least one heat exchanger and an outlet of the cooling package. Exhaust gas exiting the exhaust stack outlet is mixed with the cooling air exiting the cooling package outlet in a high temperature zone surrounding the exhaust stack outlet to form a fluid mixture. An electronic control module is in control communication with the active regeneration system and includes a regeneration control algorithm operable to detect a speed of the blower fan. | 05-03-2012 |
| 20120102918 | METHOD OF MIXING EXHAUST GAS EXITING AN EXHAUST STACK OUTLET WITH COOLING AIR EXITING A COOLING PACKAGE OUTLET AND MACHINE USING SAME - A machine includes an internal combustion engine disposed within an engine compartment and supported on a machine frame. An exhaust stack has an inlet fluidly connected to an exhaust manifold of the internal combustion engine and an outlet in fluid communication with ambient air. A diesel particulate filter is disposed along the exhaust stack. A cooling package includes at least one heat exchanger and a blower fan. The blower fan is configured to blow cooling air from the engine compartment sequentially through the at least one heat exchanger and an outlet of the cooling package. Exhaust gas exiting the exhaust stack outlet is mixed with the cooling air exiting the cooling package outlet in a high temperature zone surrounding the exhaust stack outlet to form a fluid mixture, and a temperature of the fluid mixture at a perimeter of the high temperature zone is below 200 degrees Celsius. | 05-03-2012 |
| 20120096833 | AFTERTREATMENT MOUNTING SYSTEM - An exhaust aftertreatment module comprising a plurality of mounts for connecting the module to a surface. The mounts are arranged in a radial pattern around a central location of the module. The mounts also have a direction of travel aligned with a radial direction of expansion that passes through the central location. | 04-26-2012 |
| 20120092486 | SYSTEM AND METHOD FOR CONTROLLING A MULTI-MACHINE CARAVAN - The present disclosure is directed to a system for controlling a plurality of machines. The system includes a camera disposed on a second machine and configured to record at least one image of a first machine. A controller is configured to be in communication with the first machine and the second machine. The controller is configured to track information associated with the recorded image of the first machine. The controller is also configured to determine a direction of movement of the second machine based on an analysis of the tracked information. | 04-19-2012 |
| 20120090384 | Carbon Deposit Simulation Bench And Methods Therefor - A carbon deposit simulation bench for evaluating effects of an engine system liquid on an engine surface that experiences an engine pressure and an engine temperature includes a test chamber having a high surface area test specimen positioned therein. The carbon deposit simulation bench also includes an air supply system including an air supply conduit fluidly connecting an air supply source with the test chamber, and a liquid circulation loop configured to circulate the engine system liquid through the test chamber. A temperature control subsystem simulates the engine temperature within the test chamber, and a pressure control subsystem simulates the engine pressure within the test chamber. | 04-19-2012 |
| 20120087726 | Electric Screed Heat Control System and Method of Heating Screed Plates - In electrically heated screed assemblies, elements that are prone to failure are the temperature sensors. Typically, each screed plate has a single temperature sensor. When one temperature sensor fails, the controller will look for a working temperature sensor amongst the other screed plates and if more than one temperature sensor is working, the controller will choose the most relevant temperature sensor and use the data from the working temperature sensor to operate the resistive heating elements on the screed plate with the non-functional temperature sensor. If the temperature sensor on an outer screed plate fails, the controller will look to the other outer screed plate temperature sensor for data for purposes of operating the resistive heating elements on the outer screed plate with a broken temperature sensor. Similarly, if the temperature sensor on an inner or central screed plate fails, the controller will look to a neighboring screed plate with a working temperature sensor for data for purposes of operating the inner or center screed plate with the broken temperature sensor. The controller will generate signals for the operator to replace the failed temperature sensor. | 04-12-2012 |
| 20120085835 | Needle Valve Member With Frustoconical Guide Segment And Fuel Injector Using Same - A fuel injector includes an injector body with a tip component that defines at least one nozzle outlet. A needle valve member is positioned in the injector body and includes a frustoconical segment positioned in a frustoconical bore to separate a needle control chamber from a nozzle chamber. The needle valve member includes an opening hydraulic surface exposed to fluid pressure in the nozzle chamber, and a closing hydraulic surface exposed to fluid pressure in the needle control chamber. The frustoconical bore and the frustoconical segment have a narrowing taper in the direction of an injector tip. The frustoconical features tend to slow the initial opening of the nozzle outlets, and hasten their closure relative to a counterpart injector with cylindrical needle guide features. | 04-12-2012 |
| 20120083969 | SYSTEMS AND METHODS FOR IMPROVING HAUL ROUTE MANAGEMENT - A method for managing haul routes in work environments comprises receiving performance criteria associated with a haul route and establishing a target total effective grade for at least one machine associated with the haul route based on the performance criteria. The method also includes collecting performance data associated with the at least one machine. A drive axle torque of the at least one machine is determined and an actual total effective grade associated with the at least one machine is estimated. The at least one machine is identified as an underperforming machine if the actual total effective grade for the at least one machine exceeds the target total effective grade. An average total effective grade for the at least one machine is determined as a function of the actual total effective grade. A haul route deficiency is identified if the average total effective grade exceeds a threshold level. | 04-05-2012 |
| 20120083968 | PERFORMANCE-BASED HAULAGE MANAGEMENT SYSTEM - A method for managing haul routes in work environments comprises collecting performance data associated with a machine operating in a work environment. The method also includes determining a drive axle torque of the machine and estimating a total effective grade associated with the machine based on the drive axle torque. The estimated total effective grade is compared with a threshold level and, if the estimated total effective grade exceeds the threshold level, a design performance of the machine may be simulated based on the calculated total effective grade. Design performance data is compared with the collected performance data, and a payload limit of the machine is adjusted if the design performance is inconsistent with collected performance data. | 04-05-2012 |
| 20120082513 | COMPACTION APPARATUS AND ASSOCIATED COMPACTOR VEHICLE - A compaction apparatus includes a removable plate configured to at least partially cover an outermost arcuate surface of a wheel of a compactor vehicle. The plate defines a plurality of ports, each port being configured to receive at least a portion of a base of a compactor wheel projection. | 04-05-2012 |
| 20120080372 | Filter System with Fuel-Water Separator - A canister filter system includes a base, a canister attachable to the base, and a fluid separator filter having filter media positioned inside the canister. A drain engages and forms a seal with the filter in a closed position. In an open position, the drain allows fluid to be removed from the canister. The structure of the filter is such that the filter may more efficiently separate fluids. | 04-05-2012 |
| 20120072084 | Closed loop transmission torque control - The described system and method provide improved transmission performance and response with closed loop torque feedback by implementing situational gain scheduling and nonlinear control techniques for continuously variable transmissions. The system uses contextual information regarding the operation of the machine to determine a gain to be applied in associated PID control logic. In an embodiment, the determined gain is applied in the integral portion of the closed loop controller. | 03-22-2012 |
| 20120067981 | Precision Ground Armature Assembly For Solenoid Actuator And Fuel Injector Using Same - A solenoid actuator includes a hard guide piece and a soft flux piece. The hard guide piece has a stop surface ground to create a final air gap distance between the soft flux piece and a stator assembly when the stop surface on the guide piece is in contact with the stator assembly. The final air gap is set by grinding the stop surface on the guide piece so that the distance between the stop surface on the guide piece and a top surface on the soft flux piece along an axis of the guide bore is equal to the final air gap. The step of grinding the armature assembly may be done after attaching the guide piece and the flux piece together. In an exemplary embodiment, the step of grinding the stop surface and associated guide surface(s) are performed in a single chucking. | 03-22-2012 |
| 20120067603 | AXLE GUARD ASSEMBLY FOR COMPACTION MACHINE - An axle guard assembly of a machine protects against intrusion of wire wrap into a central cavity of a ground engaging device. The guard, which is mounted to the axle, includes a wall disposed within the cavity of the ground engaging device. A cover can be provided which includes a flange circumscribing a central portion. The central portion is disposed axially inwardly of an inboard opening to the cavity. The flange can extend radially outwardly from the central portion and axially outwardly toward the wall. The periphery of the cover can be configured such that it is larger than the opening to the cavity. In another aspect, a support vane can be provided which extends along a longitudinal axis between a first wall and a second wall and includes a planar vane surface extending substantially radially to the longitudinal axis. | 03-22-2012 |
| 20120067331 | Controlling engine braking loads using cat regeneration system (CRS) - A power system comprising an engine, an intake air system, and an intake air bypass system. The intake air system delivers compressed air to the engine and the intake air bypass system diverts the compressed air away from the engine in response to the operation of an engine brake. | 03-22-2012 |
| 20120067329 | Efficient Wave Form To Control Fuel System - An efficient control wave form is utilized to actuate the solenoids of a fuel system to reduce boost power/energy consumption. The solenoid is initially energized by applying a boost voltage from an electronic controller across a solenoid coil circuit. The electronic controller monitors the current level in the solenoid coil circuit, and changes to a reduced battery voltage when the current level in the solenoid coil circuit reaches a predetermined trigger current. The controller then maintains a pull-in current based upon battery voltage for a pull-in duration that initiates movement of the solenoid armature from an initial air gap position toward a final air gap position. After the pull-in duration, the current level is dropped to a hold in level for the remaining duration of the actuation event. The solenoid may be used for fuel injector control and/or pump control, such as to control fuel injection and pumping events respectively. | 03-22-2012 |
| 20120067034 | Exhaust Aftertreatment System, And Engine Service Package Having Fuel Filtering Mechanism - An exhaust aftertreatment system includes a combustion head housing defining a plenum, and an air supply system including an air conduit fluidly connected with the plenum. The aftertreatment system further includes a fuel system having a fuel supply housing defining a fuel passage, a control valve positioned within the fuel passage and a fuel filtering mechanism having a filtering component positioned within the fuel passage fluidly between a fuel inlet and the control valve. A nozzle is mounted within the combustion head housing and defines a nozzle outlet, and a fuel conduit extends between the fuel supply housing and the combustion head housing. The control valve includes an open state in which the fuel system defines an unobstructed fuel flow path from the fuel inlet to the nozzle outlet. A non-serviceable fuel filtering mechanism is coupled with the combustion head housing, and a serviceable fuel filtering mechanism is reversibly coupled with the combustion head housing and positioned upstream the non-serviceable fuel filtering mechanism. In a related aspect, a diesel engine service package includes a fuel filtering mechanism having a threaded body component and a filtering component having a cup shape and being formed of a sintered metallic filter medium. | 03-22-2012 |
| 20120065854 | SYSTEM AND METHOD TO PREVENT SHIFT HUNTING IN A POWERTRAIN - A method for preventing shift hunting in a powertrain is disclosed. The powertrain includes an engine and a transmission having a variator, a first gearset, and a second gearset. The engine is operated at a first substantially constant speed. A first transmission shift condition is detected. One or more shift hunting prevention methods are selected as a function of operating parameters from a group of shift hunting prevention methods. The one or more shift hunting prevention methods are implemented as a function of detecting the first transmission shift condition. | 03-15-2012 |
| 20120065853 | SYSTEM AND METHOD TO PREVENT SHIFT HUNTING - A method for preventing shift hunting in a powertrain is disclosed. The powertrain includes an engine and a transmission having a variator, a first gearset, and a second gearset. The engine is operated at a first substantially constant speed. A first transmission shift condition is detected. A desired transmission output torque is determined. The transmission is operated at a transmission torque different than the desired torque as a function of the first shift condition. | 03-15-2012 |
| 20120062155 | Retarding Grid Cooling System and Control - A cooling system ( | 03-15-2012 |
| 20120061491 | STATOR ASSEMBLY AND FUEL INJECTOR USING SAME - A fuel injector for a common rail fuel system includes a common rail inlet port fluidly connected to a high pressure common rail, and a cooling inlet fluidly connected to an output from a lower pressure fuel transfer pump. The cooling fluid circulates internally through the fuel injector to cool a single pole solenoid via both internal and peripheral cooling passages. In order to accommodate a small spatial envelope while providing superior performance, a thin insulating layer may separate the solenoid coil winding from an inner pole piece, and small flux gap clearances may permit a flux carrying portion of the injector body to be a portion of the single pole solenoid assembly. | 03-15-2012 |
| 20120059537 | ELECTRIC DRIVE POWER RESPONSE MANAGEMENT SYSTEM AND METHOD - An electric drive system includes a fuel-driven prime mover for driving an electrical power alternator controlled at least in part by an excitation voltage is disclosed. The electrical power alternator makes electrical power available on a DC link having a voltage characteristic and a current characteristic. A method for managing the response of the alternator includes determining a voltage of the DC link and a torque command by an operator. The torque command is used to derive a mechanical power that is being commanded. A desired voltage of the DC link is determined based on the derived mechanical power, and an excitation voltage command signal is provided based on the desired voltage of the DC link by use of a closed loop controller. An actual excitation voltage is applied to the electrical power alternator based on the excitation voltage command signal. | 03-08-2012 |
| 20120055448 | CO-AXIAL QUILL ASSEMBLY FOR DUAL FUEL COMMON RAIL SYSTEM - A dual fuel common rail system includes first and second common rails fluidly connected to a fuel injector by a co-axial quill assembly. Distillate diesel fuel at a first pressure moves from the first common rail through a first fuel passage defined by a quill, through an inner tube and into the fuel injector. Liquid natural gas a second lower pressure moves from the second common rail through a second fuel passage defined by the quill, through a space between the outer tube and the inner tube, and finally into the fuel injector. The quill is partially positioned in a block. First and second compression load adjusters are threadably attached to the block to adjust a compression load on the inner tube and outer tube to inhibit leakage of fuel from the tubes. | 03-08-2012 |
| 20120055151 | Drain Valve For An Air Intake System Of A Machine - A machine includes an internal combustion engine mounted on a chassis and having an intake manifold. An air intake system extends from an air inlet to the intake manifold and includes a condensate collection location. The machine also includes a liquid system having a pump that is mechanically coupled to the internal combustion engine. A drain valve is positioned in the air intake system at the condensate collection location and includes a valve member having a closed position and an open position. In the closed position of the valve member, a closing surface of the valve member is exposed to pressurized liquid within the liquid system and the condensate collection location is fluidly blocked from a discharge opening in the air intake system. In the open position of the valve member, the condensate collection location is fluidly connected to the discharge opening. | 03-08-2012 |
| 20120055050 | Multi-Function Wheel Loader Linkage Control with Optimized Power Management - A hydraulic system and earth-moving vehicle employing the hydraulic system are disclosed. The hydraulic system may include a first hydraulic cylinder and a second hydraulic cylinder, first and second hydraulic pumps and control valves to modulate provision of hydraulic fluid and pressure from the first and second hydraulic pumps to the first and second hydraulic cylinders as appropriate for the task being performed. If the task is digging with the earth moving vehicle, the first and second cylinders may be associated with tilting and lifting, respectively, and the control valves may be oriented so as to make each pump dedicated to one of the cylinders, and if demand is not being met, to then diminish power to the drivetrain to allow the tilting and lifting to be performed. The combiner may or may not be open during this time. If the task is not digging, a combiner valve can be opened to allow for cross-flow between the pumps and the cylinders. | 03-08-2012 |
| 20120043810 | Method and system for eliminating fuel consumption during dynamic braking of electric drive machines - A drive system ( | 02-23-2012 |
| 20120043490 | PRE-OXIDATION OF ENGINE VALVES AND SEAT INSERTS FOR IMPROVED LIFE - A valve seat insert operable with a valve to selectively open and close a passage to a cylinder in an internal combustion engine. The valve seat insert includes a cobalt alloy base including at least about 40 wt % Co and at least about 5 wt % Cr. An oxide scale coating is disposed on at least a wear face of the valve seat insert adapted to engage the valve and optionally on a portion of the valve. | 02-23-2012 |
| 20120043393 | Fuel Injector with Damper Volume and Method for Controlling Pressure Overshoot - A fuel injector configured to inject a predetermined volume of fuel, such as heavy fuel oil, is disclosed. The disclosed injector includes an injector body that defines a fuel inlet, a fuel passageway, and an orifice. The injector also includes a needle disclosed at least partially within the injector body. The needle is movable between a closed position where the needle blocks the orifice and an open position where the needle at least partially unblocks the orifice. At least the injector body and the needle define a nozzle chamber. The nozzle chamber is in communication with a high pressure fuel passageway and the orifice. The fuel passageway and nozzle chamber have a combined volume greater than the predetermined injection volume. The combined volume of the nozzle chamber and fuel passageway act as a damper to alleviate the effects of pressure overshoot, pressure oscillations and water hammer | 02-23-2012 |
| 20120043163 | Lubrication System for a Breaking Tool - A lubrication system for a work tool, such as a demolition hammer, that is powered by a drive fluid. The lubrication system including a valve member movable from a first position to a second position in response to receiving an input indicative of a low level of a lubricant, wherein in the second position, the valve member is configured to divert the drive fluid to shutdown or derate the tool. | 02-23-2012 |
| 20120042955 | Dual Butterfly Control Valve and Method of Use - A valve for a plenum or pipe is disclosed. The valve includes a large butterfly valve element pivotally supported in the plenum by at least one rod. The large butterfly valve element includes an opening for accommodating a small butterfly valve element. The small butterfly valve element is coupled to the rod by a shaft. The shaft includes a recess that accommodates the small butterfly valve element but which includes a clearance between the small butterfly valve element and the shaft to permit limited rotation of the shaft before the small butterfly valve element engages at least one wall of the recess of the shaft. Thus, the combination of the shaft and the small butterfly valve element provide limited flow through the plenum. Further rotation of the shaft, however, results in rotation of the large butterfly valve element to provide greater flow through the plenum. | 02-23-2012 |
| 20120042637 | TALL VERTICAL SCR - An exhaust aftertreatment system including an exhaust conduit transmitting exhaust from an engine, a reductant introduction system introducing a reductant into the exhaust, and a selective catalytic reduction catalyst (SCR) receiving the exhaust and reductant. A SCR length divided by a SCR width is greater than 4. A SCR cell density is less than 180 cells per square inch of cross-sectional area of the SCR. The SCR is vertically mounted adjacent a corner of a cab of a machine. | 02-23-2012 |
| 20120037389 | Composite Seal for a Hydraulic Hammer - A hydraulic hammer ( | 02-16-2012 |
| 20120024973 | Large Bore Fuel System And Fuel Injector For Same - A low leakage large bore fuel system includes a common rail fluidly connected to at least one of a source of heavy fuel oil and a source of distillate diesel fuel. A plurality of fuel injectors are fluidly connected to the common rail and each include a cooling inlet and a cooling outlet. Each fuel injector also includes an electrical actuator coupled to a direct operated nozzle check valve by a pilot valve member and a control valve member. Fuel leakage is reduced between injection events by equalizing pressures in a pilot control chamber and an intermediate control chamber that are separated by a guide surface of the control valve member. Also, between injection events the pilot valve member blocks a drain outlet from a common rail inlet of the fuel injector. | 02-02-2012 |
| 20120024656 | FLYWHEEL HAVING LUBRICATION-FLOW PASSAGEWAY - A method of lubricating a clutch disposed on a driven-side of a flywheel that is connected to a crankshaft includes rotating the flywheel and providing a flow of lubrication fluid spilling onto a driver-side of the flywheel. At least a portion of the flow of lubrication fluid is received through at least one passageway extending through the flywheel and expelled from the passageway on a driven-side of the flywheel. A clutch disposed on the driven-side of the flywheel is lubricated with the expelled lubrication fluid. | 02-02-2012 |
| 20120024491 | Method For Casting Component - A cast component having localized areas of improved physical properties is disclosed. The component may initially be produced having a void portion in a predetermined area requiring improved physical properties. A second molten material may be added to the void portion such that it chemically bonds to the void portion. The component may then be finished such to a final shape with a localized area of improved physical properties. | 02-02-2012 |
| 20120023936 | NOZZLED TURBOCHARGER TURBINE - A turbine includes a turbine housing ( | 02-02-2012 |
| 20120018236 | Electric powertrain for off-highway trucks - An off-highway truck with an electric powertrain is provided. The off-highway truck includes a set of steerable idle wheels supported by a chassis. An engine is configured to provide the off-highway truck with mechanical energy. At least one electric power generator is operably coupled to the engine and configured to convert at least a portion of the mechanical energy provided by the engine into electric energy. At least one electric motor is operably coupled to the electric power generator. First and second final drives are configured to rotate at least one drive wheel that is non-steerable. A differential is operably coupled to the at least one electric motor for distributing the torque produced by the at least one electric motor to the first and second final drives. | 01-26-2012 |
| 20120017862 | CYLINDER HEAD ROCKER ARM STAND REPAIR INSERT - An insert for use in a remanufactured cylinder head rocker arm stand, the insert comprising an inner facing surface having a radius within a range of 35 to 45 mm and a length within a range of 70 to 103 mm, and an outer facing surface adapted for disposal against a channel in the rocker arm stand, the rocker arm shaft being disposed adjacent the inner facing surface in use, but not adjacent the rocker arm stand. | 01-26-2012 |
| 20120017861 | CYLINDER HEAD ROCKER ARM STAND REPAIR AND PROCESS - A process for remanufacturing a cylinder head that includes a worn or damaged rocker arm stand adapted to receive a rocker shaft to which at least one rocker arm is mounted, the steps including machining a channel in a surface of the worn or damaged rocker arm stand, securing an insert into the channel, and machining the insert to form a remanufactured inner facing surface. The remanufactured cylinder head includes at least one rocker arm stand that has a machined channel with a remanufactured insert secured therein, the rocker shaft being disposed adjacent the inner facing surface, not the rocker arm stand. | 01-26-2012 |
| 20120017570 | Ash Detection In Diesel Particulate Filter - Detecting ash in a diesel particulate filter includes receiving data indicative of signal attenuation for ash-responsive and ash-insensitive RF signals transmitted through a diesel particulate filter containing trapped soot and ash. A difference between the RF signals, such as a difference in signal attenuation, may be leveraged to detect a relative ash loading state or a change in relative ash loading state of the diesel particulate filter, and responsively indicate that filter cleaning is needed. | 01-26-2012 |
| 20120009688 | PARTICLE SENSOR - A particle sensor is provided having a first temperature sensing device having a sensing surface exposed to particles contained within a fluid. The sensing surface is at least partially coated with a catalyst for promoting an exothermic reaction with at least a portion of the particles. The particle sensor also has a second temperature sensing device positioned at a location substantially thermally isolated from thermal energy generated by the exothermic reaction. | 01-12-2012 |
| 20120007420 | Combination Idler Recoil and Tension Adjustment Assembly and Method for Identifying Source of Leakage in Same - An idler recoil and tension adjustment assembly is disclosed which provides a visual indication to the operator when either the idler recoil section or the tension adjustment section has developed a leak. The idler recoil and tension adjustment assembly includes a housing that accommodates a reciprocating shaft that includes both an idler recoil section and a tension adjustment section. The tension adjustment section is in communication with the grease port and the idler recoil section is in communication with a gas port. The grease and gas ports are coupled to the reciprocating shaft at an attachment section disposed between the idler recoil and tension adjustment sections. A blocking plate is slideably mounted to the attachment section and a shaft or roller is provided inside the housing so that when a leak develops in one of the sections the blocking plate may provide a visual indication to the operator as to which section, the idler recoil or the tension adjustment, is experiencing a leak. | 01-12-2012 |
| 20120007359 | Non-Rotating Mechanical Joint for a Hose Coupling - A hose coupling and method of manufacturing same are disclosed. The hose coupling includes a stem to which is staked a ferrule. The stem includes a radially inwardly directed groove into which a radially inwardly directed wedge of the ferrule is staked. The wedge includes a width that is greater than the width of the groove before staking. Moreover, the groove includes a bottom surface from which first and second canted sides extend at a first angle, while the wedge includes an inner surface from which first and second canted sides extend at a second angle. The first and second angles are not parallel but within five degrees of one another. The stem and ferrule form at least six distinct regions of surface contact to guard against rotation of the ferrule relative to the stem. | 01-12-2012 |
| 20120007356 | No-Skive Hydraulic Hose Coupling with Improved Hose Retention and Sealing - A hydraulic hose coupling, and method of assembling a coupling to a hydraulic hose are disclosed. The hydraulic hose and coupling assembly is designed to attach a coupling to a hydraulic hose in a no-skive fashion. Moreover, it does so with greatly enhanced sealing and retention capabilities relative to the currently available products. This is accomplished in many ways, some of which include the provision of a plurality of hose retention and sealing zones within the coupling, each of which include various combinations of radially inwardly directed barbs and radially inwardly and outwardly directed surface features on the inner stem of the coupling. With specific regard to the zone primarily directed to sealing, it includes a radially inwardly directed barb which works in conjunction with a straight cylindrical surface flanked by first and second radially inwardly directed recesses. But providing such structure, the inner liner of the hydraulic hose is compressed to a degree greater than any other zone, but at the same time mechanical strain in the liner is relived through the use of such recesses. Moreover, by providing barbs which are longer and more narrow in the first and second zones, the first and second zones provide improved retention capability. This is in combination with the surface features of first and second zones working in concert with the longer, narrower barbs to cause enhanced wire deflection and thus greater retention strength. | 01-12-2012 |
| 20120006603 | Steering system and method of steering a machine - A steering system for steering a machine having opposing first and second sides with first and second pairs of rotatably mounted rear wheels disposed along the respective sides and at least one rotatably mounted, spaced front wheel. The system includes at least one first drive unit and at least one second drive unit for rotating the rear wheels of the respective pairs, and a steering input device that provides a signal to a controller that produces drive unit request signals to control the drive units to rotate the associated rear wheels along one side at rotational speeds greater than those along the other side to facilitate turning. | 01-12-2012 |
| 20120003042 | Land Fill Compactor Wheel Tip Assembly - A compactor wheel tip assembly for a landfill or soil compactor comprises a base with a tip attached thereto. A base engaging surface of the tip and a tip engaging surface of the base face and abut when the tip is attached to the base. The tip and base engaging surfaces may have corresponding geometries so that the tip may be attached the base in either a forward and rearward traction position or a side-slop traction position. The tip may include pocket walls having concave surfaces, and a ground engaging surface of a top wall that may be generally planar with a “bow-tie”-shaped cross-section or may define a pair of shoulders, a rib extending between the shoulders, and exterior pockets disposed on either side of the rib. | 01-05-2012 |
| 20120003041 | Paddle Style Land Fill Compactor Wheel Tip - A compactor wheel tip for a landfill or soil compactor comprises a bottom wall having a wheel engaging surface, a top wall having a ground engaging surface, oppositely disposed front and rear walls having concave surfaces, and oppositely disposed side walls. The ground engaging surface of the top wall may be generally planar and have a “bow-tie”-shaped cross-section, or the top wall may define a pair of shoulders each extending inwardly from one of the side walls, and a rib extending between the shoulders and having a depth that is less than the depth of shoulders. The ground engaging surface may further define a pair of exterior pockets disposed on opposite sides of the rib and extending downwardly between the rib and corresponding portions of the front and rear walls. | 01-05-2012 |
| 20120002910 | Thrust Ring For Undercarriage In A Track-Type Machine - A thrust ring for an undercarriage in a track-type machine includes an annular body having an outer circular edge and an inner circular edge defining a common center axis. A first set of oil grooves and a first set of thrust faces are positioned in an alternating arrangement on each of a first axial side and a second axial side of the annular body. Each of the oil grooves includes a cross sectional contour shaped to balance an oil flow property of the thrust ring with a strength property of the thrust ring, and defining a non-uniform curve which includes a plurality of curve segments each having a different radial attribute. The thrust ring defines a Plouzek value equal to 1. | 01-05-2012 |
| 20110319211 | Reconfigurable Hybrid Power Train - A multi-mode hybrid drive train offers selective operation in any one of series, parallel, and power split modes. The multi-mode hybrid drive train includes two planetary gear sets and a collection of specifically placed brakes and clutches relative to those gear sets. The first planetary gear train includes a power input for receiving power from a primary rotational power source, as well as a first sun gear, first carrier and first ring gear. The second planetary gear train similarly includes a power input as well as a second sun gear, a second carrier connected to a final drive, and a second ring gear. A first motor is linked to the first sun gear and a second motor is linked to the second sun gear such that selective activation of the clutches, brakes, and motors places the multi-mode hybrid drive train in a selected mode of operation. | 12-29-2011 |
| 20110316331 | Master Link Joint for a Track Undercarriage and Method of Retrofitting an Existing Undercarriage - A master link joint for a drive chain is disclosed. The disclosed master link joint includes two master links. Each master link includes a first half link and a second half link that engage each other along mating abutment surfaces. The two master links are disposed on opposite sides of the chain. The first half links are coupled by a pin that traverses the chain and the second half links are coupled by a bushing that traverses the chain. The mating abutment surfaces include a first ramp that meets a second offset ramp at a junction or root. An angle θ defined by the second ramps of the mating abutment surfaces and a line parallel to the rail or bottom pad of the half links ranges from about 45 to about 53°. | 12-29-2011 |
| 20110315793 | Fuel Injector Tip With Compressive Residual Stress - Steel rod stock is shaped into a fuel injector tip having a central axis and including a shank extending between a mating end and a nozzle end. An inner surface of the fuel injector tip includes a conical needle valve seat and defines a nozzle chamber and a sac on opposite sides of the needle valve seat. The mating end includes a injector stack surface and an injector body contact surface. After shaping the fuel injector tip, it is a case hardened to a hardness in excess of HRC 55. Next, the nozzle end is shaped, after the case hardening step, to include a plurality of nozzle surfaces that each define one of a plurality of nozzle outlets extending between the sac and the outer surface. The inner surface and the nozzle surfaces are then autofrettaged to induce compressive residual stress at the case hardened needle valve seat, the case hardened sac and at least a portion of the nozzle surfaces closest to the sac. | 12-29-2011 |
| 20110315118 | System and Method for Cooling Fuel Injectors - Various fuel injection systems and fuel injectors are disclosed that provide varying cooling rates for fuel injectors connected in series to fuel supply and drain rail. The local cooling rate for each injector is manipulated to balance the heat flux or heat transfer across the injectors disposed along the rail. The cooling rates may be manipulated by varying sizes of openings or slots in the nozzle case, by varying annular spaces disposed between the nozzle case and the portion of the injector body that houses the actuator and solenoid assembly, and by varying the size of annular spaces disposed between the nozzle case and the cylinder head. Strategic placement of slots in the nozzle case that direct more flow at the portion of the injector body that houses the actuator and solenoid assembly may also be employed. As a result, the operating temperatures of fuel injectors connected in series to a fuel rail can be manipulated and moderated so the downstream injectors are not prone to overheating. | 12-29-2011 |
| 20110313630 | Calibrating transmission motor torque - The described system and method allow a controller to calibrate a transmission variator of a continuously variable transmission for torque control by obtaining static and dynamic qualities and parameters of the variator through an automated calibration procedure. The system and method employ a pair of transmission mode configurations and operational configurations in combination to obtain system-specific information. In this way, the system is able to calibrate out the system variations to provide effective feed forward torque control of the continuously variable transmission. In an embodiment, a first calibration operation is performed while the transmission is neutralized and a second calibration operation is performed while the transmission is engaged in a mode providing a fixed variator output speed. | 12-22-2011 |
| 20110309672 | Pin for Use in Track Rollers and Bogie Assemblies - A pin for use in a track roller or bogie assembly comprises an outboard facing end, an inboard facing end having an aperture, a cylindrically-shaped external surface extending from the outboard facing end to the inboard facing end, and an inner surface extending inwardly from the aperture of the inboard facing end toward the outboard facing end and defining a cavity within the pin. The inner surface of the pin includes a groove disposed proximate the inboard facing end into which an outer surface of a resilient stopper expands to increase the pressure resistance of the pin and stopper to stopper being pushed or pulled from the pin. | 12-22-2011 |
| 20110308071 | Liquid Cooled Permanent Magnet Rotor - A permanent magnet rotor for an electrical generator includes a rotor shaft and a rotor core mounted coaxially upon the rotor shaft. The rotor core defines a plurality of longitudinal core passages which include a segment of a rotor cooling circuit, and further includes a permanent magnet outer core component mounted on an inner core component and including a plurality of permanent magnets. A cooling liquid containment mechanism for the permanent magnet rotor includes a first liquid containment cover coupled to the inner core component and a second liquid containment cover coupled to the inner core component. The liquid containment covers are configured to contain cooling liquid passed from an inlet segment of the rotor cooling circuit defined by the rotor shaft into the plurality of longitudinal core passages, and thenceforth into an outlet segment of the rotor cooling circuit also defined by the rotor shaft. The liquid containment covers are mounted on the inner core component at locations radially inward of a cylindrical outer surface thereof. | 12-22-2011 |
| 20110304106 | PRESS IN PLACE SEAL - A press-in-place or “PIP” seal has a length and a cross section. The cross section, when in an uncompressed state, includes a top portion that includes a first bead and a second bead. The top portion has a seal width. The cross section further includes a bottom portion having a third bead and a fourth bead. The bottom portion has a narrow width that is narrower than the seal width. A first side surface connects the third bead with the first bead and a second side surface connecting the fourth bead with the second bead. | 12-15-2011 |
| 20110297128 | Internal Combustion Engine, Combustion Charge Formation System, and Method - A gaseous fuel internal combustion engine includes an engine housing defining at least one cylinder, and an intake housing defining an intake passage fluidly connecting with the at least one cylinder. The engine includes a gaseous fuel delivery mechanism coupled with the engine housing and a distributed ignition promoting mechanism having a bead presentation device extending into the intake passage and configured to present a liquid bead of distributed ignition promoting material therein such as engine lubricating oil. During operation, gases passing through the intake passage dislodge the liquid bead from the bead presentation device and carry the distributed ignition promoting material into the cylinder for distributively igniting therein a mixture containing a gaseous fuel, air and the distributed ignition promoting material. | 12-08-2011 |
| 20110297125 | Reverse Flow Check Valve For Common Rail Fuel System - A common rail fuel system includes a reverse flow check valve fluidly positioned between each of a plurality of common rail fuel injectors and an outlet of a high pressure pump. The reverse flow check valves divide the overall system fluid volume into an upstream common volume and a plurality of separate downstream volumes. The upstream common volume is greater than the sum of the separate downstream volumes. The reverse flow check valve is movable between a first configuration with a large flow area and a second configuration with a small flow area. The reverse flow check valve associated with each of the individual fuel injectors may be housed in a quill that fluidly connects the fuel injectors to the high pressure common rail. | 12-08-2011 |
| 20110295473 | Variator pressure-set torque control - A method and system for configuring a hydromechanical transmission having a hydraulic pump and a hydraulic motor driven by the hydraulic pump and a pressure-driven actuator employs a particular torque-pressure curve configuration to maximize torque resolution with respect to actuator pressure changes while ensuring that the curve is substantially monotonic in each dimension and at any available motor speed within a predetermined motor speed limit and any available actuator pressure within predetermined actuator pressure limits. The resultant four-dimensional association between actuator pressure, motor speed, primary power source speed and motor torque allows selection of an actuator pressure to provide a desired torque. | 12-01-2011 |
| 20110295453 | ELECTRIC POWERTRAIN FOR WORK MACHINE - An electric powertrain includes an engine configured to provide mechanical energy and a generator operably coupled to the engine and configured to convert at least a portion of the mechanical energy into electric energy. The electric powertrain further includes at least one electric motor operably coupled to the generator, a plurality of driving members, and at least one power electronics unit configured to control at least one of the engine and the generator. The at least one electric motor is configured to provide torque for the plurality of driving members. | 12-01-2011 |
| 20110295433 | SYSTEM AND METHOD FOR PROVIDING POWER TO A HYDRAULIC SYSTEM - A method for providing power to a hydraulic system is disclosed. The method includes determining a hydraulic system power demand, determining an energy storage device power demand, and determining a desired parameter of a primary power source based on the hydraulic system power demand. The method further includes providing power to the hydraulic system as a function of the energy storage device power demand and the desired parameter. | 12-01-2011 |
| 20110293360 | Seal Assembly and Method for Forming a Seal Assembly - A seal assembly and method of forming a seal assembly provides a seal body having reduced strain during use, thereby increasing service life. The seal body may be formed within certain parameters, such as ranges of height-to-thickness and offset-to-height ratios, which have been found to reduce strain. Additionally or alternatively, the seal body may be modified from an initial configuration to a pre-strained configuration by axially displacing an inner section of the seal with respect to an outer section of the seal, which also reduces strain. | 12-01-2011 |
| 20110290219 | SELECTIVE DISPLACEMENT CONTROL OF MULTI-PLUNGER FUEL PUMP - A pump for a combustion engine is disclosed. The pump may have at least one pumping member movable through a plurality of displacement strokes during a single engine cycle. The pump may also have a controller in communication with the pumping member. The controller may be configured to selectively reduce an amount of fluid displaced during at least one, but less than all of the plurality of displacement strokes. The reduction may be initiated in response to a demand for the displaced fluid. | 12-01-2011 |
| 20110290211 | Low Leakage Cam Assisted Common Rail Fuel System, Fuel Injector, And Operating Method Therefor - A fuel system includes a plurality of fuel injectors each defining a nozzle supply passage, a nozzle outlet and a low pressure space. The fuel system includes a plurality of mechanically actuated pressure intensifiers each including a tappet and being positioned partially within one of the fuel injectors, and a common rail fluidly connecting with each of the fuel injectors. Each of the fuel injectors further includes an injection pressure control mechanism having an injection pressure control valve. Each injection pressure control valve blocks the corresponding pressure intensifier from the common rail and fluidly connects the pressure intensifier with the low pressure space at a first position, and fluidly connects the pressure intensifier with the common rail and blocks the pressure intensifier from the low pressure space at a second position. Injecting fuel via operating the fuel system may include operating the fuel system in a low leakage mode where the pressure intensifier displaces fuel at a low pressure, between high pressure injections. | 12-01-2011 |
| 20110289914 | UPSTREAM EGR RESTRICTION - A power system comprising an engine that produces exhaust and includes an exhaust gas recirculation (EGR) system. The EGR system includes an EGR conduit routing an exhaust flow back to the engine, a restriction valve disposed in the EGR conduit, and a control valve disposed in the EGR conduit in series with the restriction valve. | 12-01-2011 |
| 20110272499 | HYDRAULICALLY AMPLIFIED MECHANICAL COUPLING - A component includes a transmission arrangement for transmitting a force between an actuator and a control valve. The transmission arrangement includes a post that is associated with the actuator. The control valve is displaceable to an open position from a closed position when an opening force is applied to the control valve that is greater than a closing force provided to the control valve. The transmission arrangement is disposed in the component between the post and the control valve actuator and arranged to mechanically transmit by physical contact an actuator force from the post to the control valve when the post begins to travel towards the extended stroke position, and hydraulically amplify the actuator stroke between the post and the control valve when the post travels from the retracted stroke position to the extended stroke position. | 11-10-2011 |
| 20110269597 | OPEN-LOOP TORQUE CONTROL WITH CLOSED-LOOP FEEDBACK - A variator torque control system adjusts a variator output so that the actual output torque of the variator closely matches an expected output torque. In an example, pressure values of an existing torque control map are supplemented in real time with calculated pressure supplement values based on the current operation of the variator. The pressure supplement value for each mapped pressure value may be derived based on a prior application of the same or another map value. | 11-03-2011 |
| 20110266078 | ORDER PICKING CART FOR STOCK CHASER VEHICLE - A material handling system with improved load handling and product distribution capabilities including, a stock chaser vehicle having a motorized truck portion, an operator platform, a load bearing deck portion having a front end and a rear end, and at least two wheels in a rear portion of the vehicle, wherein the deck portion is facing a load area; a picker cart removably coupled to the stock chaser vehicle, with the cart having a front and a rear end, and defining a volume above a portion of the vehicle deck for receiving objects picked by the operator, having four wheels each generally attached at one of the corresponding four corners of the cart; and, a coupling means for secure engagement of the picker cart to the stock chaser vehicle, whereby the picker cart and the stock chaser vehicle are aligned as to substantially share the same travel footprint. | 11-03-2011 |
| 20110265456 | Diesel Engine and Method for Flexible Passive Regeneration of Exhaust After-Treatment Devices - A diesel engine and method for operating a diesel engine with exhaust after-treatment device regeneration capability are disclosed. The diesel engine may employ an exhaust after-treatment device such as a diesel particular filter to remove soot from the combustion gases exhausted by the engine. In order to regenerate the exhaust after-treatment device, the temperature of the exhaust gases is raised sufficiently to do so. The temperature of the exhaust gases is raised to such a level by employing multiple compression and expansion strokes of the piston in certain engine cycles, with a combustion event associated with each pair of compression and expansion strokes. The engine may operate in a four stroke, one combustion cycle during conventional power operation, and switch to an enhanced combustion cycle during regeneration. The enhanced combustion cycle may include eight strokes such as one intake stroke, three compression strokes, three expansion strokes, and one exhaust stroke, with three combustion events. The engine may switch between cycles by using a cam follower with lost motion device capability, an electrical actuator, or any other selectively actuable valve actuator to prevent opening of the intake and exhaust valves during regeneration. | 11-03-2011 |
| 20110254833 | MESH ESTIMATION OF TERRAIN - A method for generating a three dimensional grid of terrain includes receiving data representing a three-dimensional point cloud and generating a plurality of slices of the data. The method evaluates the slices using a swarm intelligence algorithm. The method is able to identify both terrain and objects. The terrain can also be identified as traversable terrain. | 10-20-2011 |
| 20110254700 | INTEGRATED OBJECT DETECTION AND WARNING SYSTEM - In one aspect, an object warning system for a machine is disclosed. The object warning system includes an object detection system and an operator interface having a visual display, and a controller in communication with the object detection system and the operator interface. The controller is configured to control the display to represent a warning level as a function of a status of the machine and a distance of an object relative to the machine. | 10-20-2011 |
| 20110254364 | SEAL ASSEMBLY FOR TRACK PIN JOINT ASSEMBLY - A seal assembly can be incorporated into a track pin joint assembly including a pin defining a longitudinal axis, a first member and a second member both coaxial with the pin about the longitudinal axis. The first member is pivotable about the longitudinal axis with respect to the second member and includes a load ring engagement surface defining, at least in part, an axially-extending seal cavity disposed in proximal relationship to the second member. A seal assembly including a seal ring and a load ring is disposed in the seal cavity and sealingly engages the first member and the second member. At least one of a load ring engagement surface of the first member and an axial segment of a first member engagement surface of the load ring includes a convex rounded portion extending over at least half the axial length thereof. | 10-20-2011 |
| 20110253105 | FLUID INJECTOR WITH BACK END RATE SHAPING CAPABILITY - A common rail single fluid injection system includes fuel injectors ramp shaped injection curves at both the front and back ends of an injection event. This is accomplished by including a check speed control device fixed in position within the check control chamber of a fuel injector. The check speed control device controls the speed of a check by restricting fuel flowing into and out of the check control chamber. | 10-20-2011 |
| 20110253096 | PISTON HAVING COMBUSTION BOWL SHAPED TO BALANCE COMBUSTION EFFICIENCY AND EMISSION PROPERTIES - A piston for a compression ignition internal combustion engine includes a piston body having a combustion face defining a combustion bowl, and the combustion face including a compound bowl surface and a compound rim surface. The combustion face is profiled to balance a combustion efficiency property of the piston with emissions properties of the piston, and includes a profile of rotation defining a convex curve segment bisected by the longitudinal axis, and a plurality of concave curve segments outboard of the convex curve segment. The profile of rotation further includes a compound rim profile defining a plurality of convex curve segments corresponding to an inner rim surface. The convex curve segment of the compound bowl profile defines a relatively small radius of curvature, and the plurality of convex curve segments corresponding to the inner rim surface define a relatively large radius of curvature. The combustion face includes an abrupt transition from the compound bowl surface to the compound rim surface. | 10-20-2011 |
| 20110248103 | AVOIDANCE OF SPARK DAMAGE ON VALVE MEMBERS - A solenoid operated valve assembly is provided. The valve assembly may include a solenoid having a solenoid coil and an armature movable under influence of the solenoid coil. The valve assembly may also include a valve member operably connected to the armature and configured to selectively contact a valve seat. The valve assembly may further include an outer body containing the solenoid, the armature, the valve member, and the valve seat. In addition, the valve assembly may include a grounding device including an electrically conductive element disposed between the valve member and the outer body. | 10-13-2011 |
| 20110248101 | Fuel Injector Remanufacturing Method And Remanufactured Fuel Injector - A remanufacturing and salvaging strategy for fuel injector tips such as high flow fuel injector tips includes blocking a first set of spray orifices in the fuel injector tip, including at least partially filling the first set of spray orifices with a material, for example by laser welding. New spray orifices are formed in virgin material of the fuel injector tip, offset from the former spray orifices, also for example via a laser. A remanufactured fuel injector tip includes blocked former spray orifices as well as new spray orifices configured to permit spraying of fuel from the fuel injector tip. | 10-13-2011 |
| 20110243648 | SEAL ASSEMBLY FOR TRACK PIN JOINT ASSEMBLY - A seal assembly can be incorporated into a track pin joint assembly including a pin defining a longitudinal axis, a first member and a second member both coaxial with the pin about the longitudinal axis. The first member is pivotable about the longitudinal axis with respect to the second member and includes a load ring engagement surface defining a seal cavity disposed in proximal relationship to the second member. A seal assembly including a seal ring and a load ring is disposed in the seal cavity and sealingly engages the first and second members. An axial segment of a seal ring engagement surface of the load ring extends over at least half the length, measured along the longitudinal axis, between a radial segment of the seal ring engagement surface and a radial segment of a first member engagement surface of the load ring. At least one of a load ring engagement surface of the first member and an axial segment of the first member engagement surface of the load ring includes a convex rounded portion. | 10-06-2011 |
| 20110239631 | Ring Reductant Mixer - An engine exhaust aftertreatment system including a ring disposed in an exhaust conduit. The ring assists in the introduction and conversion of a reductant introduced by an injector. | 10-06-2011 |
| 20110232601 | COMPRESSION IGNITION ENGINE WITH BLENDED FUEL INJECTION - An engine includes an electronically controlled mixing ratio control valve with a first inlet fluidly connected to a source of gasoline, and a second inlet fluidly connected to a source of compression ignition fuel, such as distillate diesel fuel. An outlet from the mixing ratio control valve is fluidly connected to a fuel inlet of at least one fuel injector. The mixing ratio control valve varies a mixture ratio of gasoline to compression ignition fuel responsive to a control signal communicated from an electronic controller. The blended fuel may be pressurized to injection levels in the fuel injector, and injected directly into the engine cylinder. The compression ignition fuel is compression ignited, which in turn ignites the gasoline to produce a lower and better combination of undesirable emissions as a result of the combustion process. | 09-29-2011 |
| 20110232362 | DETECTION OF EXHAUST FILTER EFFECTIVENESS - A method and kit for determining the effectiveness of an exhaust filter. The method may involve exposing an indicator to an exhaust stream of a engine downstream of the exhaust filter, visually comparing the indicator against test samples, and assigning a level of exhaust filter effectiveness based on the comparison. The method may also involve restricting the exhaust stream, diverting a test stream of exhaust from the exhaust stream, and exposing the indicator to the test stream. The kit may include a collector having a housing defining a flow passage configured to transmit a test stream of exhaust from a engine and a restrictor having a orifice plate configured to restrict an exhaust stream from which the test stream is diverted. | 09-29-2011 |
| 20110229665 | THERMAL SPRAY COATING FOR TRACK ROLLER FRAME - A method for coating a component of a track roller frame track tensioning and recoil system is disclosed. The method includes irradiating a surface of the component with a continuous laser to heat the component's surface. The method also includes coating the surface of the component with a thermal spray coating after irradiating. | 09-22-2011 |
| 20110227399 | Compactor Wheel Tip - A tip for use with a wire guard system for a compactor wheel includes a base portion and a wear portion attached to and extending from the base portion. A first groove is disposed at the wear portion and shaped to receive an end portion of a first wire guard section. A second groove is disposed at the wear portion and shaped to receive an end portion of a second wire guard section. | 09-22-2011 |
| 20110227398 | Apparatus and Method for Protecting Axles from Winding Debris - An apparatus and method for preventing debris from accessing and wrapping around the axles of a vehicle, such as a landfill compactor, are disclosed. The apparatus may include a wheel having a rim from which radially extend a plurality of cleats or tips. A subset of tips may be provided circumferentially around a laterally inner edge of the wheel. A wheel guard may be mounted between adjacent pairs of tips of the subset. Each wheel guard may be welded to the rim and to the adjacent pairs of tips. Each wheel guard may be a unitary piece of metal, or could be provided in two or more segment so as to be adjustable and thus facilitate use on wheels of differing diameters, or with different tip spacing. The wheel guards and adjacent tips form a continuous barrier around the circumference of the wheel to prevent debris from accessing and wrapping around the axles of the compactor. | 09-22-2011 |
| 20110227309 | SUSPENSION FOR A MACHINE - A machine is provided. The machine has a forward direction of travel and includes a frame, at least one lift arm, a first torsion axle assembly, an undercarriage, and an endless track. The lift arm is pivotally attached to the frame. The first torsion axle assembly is attached to the frame and includes a first torsion arm, a first torsion shaft, and a first axle, with the first torsion shaft and the first axle extending from the first torsion arm. The undercarriage is attached to the first torsion axle assembly and the endless track encircles the undercarriage. One of the first torsion shaft and the first axle is attached to the frame and the other of the first torsion shaft and the first axle is attached to the undercarriage. The first torsion arm extends upward from the frame at an angle between 90 and 180 degrees from the forward direction of travel. | 09-22-2011 |
| 20110226219 | FUEL LUBRICATED PUMP AND COMMON RAIL FUEL SYSTEM USING SAME - A method of operating a fuel system for a compression ignition engine includes supplying biofuel, which may be part of a mixture, to an inlet of a fuel lubricated pump. At least one bearing of the pump is lubricated with the biofuel. The fuel lubricated pump supplies high pressure fuel to a common rail. A plurality of fuel injectors are fluidly connected to the common rail, and each include at least one nozzle orifice for injecting the biofuel into the combustion space of the engine. Nozzle orifice coking is limited at least in part by employing a spinodal bronze alloy in the bearing of the fuel lubricated pump. | 09-22-2011 |
| 20110225950 | Control strategy for heated fluid lines - A control strategy selectively controls the heating of fluid lines equipped with line heaters that may be utilized with a selective catalytic reduction system. The control strategy measures a tank temperature representative of reductant agent in a storage tank and a representative ambient temperature representative of an ambient temperature proximate the fluid line. The control strategy determines a lowest possible reductant agent temperature (“LPRAT”) based on the measured tank temperature and representative ambient temperature. The LPRAT is compared with a desired reductant agent temperature and, in response to the comparison, the control strategy may activate the line heater. | 09-22-2011 |
| 20110220736 | SPRAY HEAD FOR A MOBILE FLUID DISTRIBUTION SYSTEM - A spray head for a fluid distribution system that includes a spray head base defining a fluid inlet passage connected to a spray head body, a pair of deflectors extending outwardly from the base and the body, respectively, defining a fluid outlet passage, a piston disposed in a chamber of the body defining a variable orifice between the inlet and outlet, and a deflector plate positioned on an inner surface of the deflector of the base having a deflector plate surface opposing the variable orifice. | 09-15-2011 |
| 20110220064 | FLUID INJECTOR WITH AUXILIARY FILLING ORIFICE - A common rail single fluid injection system including fuel injectors with the ability to produce multiple injection rate shapes. This is accomplished by including auxiliary filling orifices which selectively provide pressurized fluid to the check needle control chamber during injection events. In so doing, the speed and movement of the check needle is manipulated and differing injection rates may be achieved. | 09-15-2011 |
| 20110220061 | Compression Brake System for an Engine - A compression brake system of an internal combustion engine includes a mechanical system for coupling a camshaft to a brake actuator assembly. The mechanical system includes a stationary housing defining an aperture and a lifter is slidably disposed in the aperture. A resilient element is disposed between the housing and the shoulder and configured to bias the lifter toward the camshaft. The mechanical system is dedicated to compression braking, and therefore the camshaft may have a lobe optimized for braking. | 09-15-2011 |
| 20110219751 | FUEL DELIVERY SYSTEM FOR SELECTIVELY PROVIDING FUEL TO VARIOUS ENGINE COMPONENTS - A system for providing fuel to an engine fuel delivery system and to an exhaust aftertreatment system associated with an engine. The system includes a fuel source, a pump being operable in a first state to pump fuel from the fuel source to the engine fuel delivery system, and the pump being operable in a second state to pump fuel from the fuel source to the exhaust aftertreatment system, wherein the first state corresponds to a first rotational direction of the pump and the second state corresponds to a second rotational direction of the pump. | 09-15-2011 |
| 20110214642 | Range Of Engines Using Common Rail Fuel System With Pump And Rail Assemblies Having Common Components - A pump and rail assembly includes a plurality of quills that are compressed between quill seats on a pump and an output rail. A rail pressure control valve and a rail pressure sensor are attached to respective ends of the output rail. An inlet throttle valve is attached to a housing of the pump and rail assembly. Depending upon the application, the output rail may supply fuel to a first injection bank that includes a plurality of fuel injectors in a first common rail, and a second fuel injection bank that includes a second common rail and a plurality of fuel injectors. Different engines having different numbers of cylinders may use similar pump and rail assemblies that each include a plurality of quills, a plurality of pumping elements positioned in a pump housing and an output rail. The quills for each of the different engine applications are interchangeable but differ in number. In addition, the pumping elements of each of the different engine applications are also interchangeable but differ in number. | 09-08-2011 |
| 20110213529 | SYSTEM AND METHOD FOR DETERMING A POSITION ON AN IMPLEMENT RELATIVE TO A REFERENCE POSITION ON A MACHINE - The disclosure describes, in one aspect, a method for determining a position on a machine relative to a reference position on the machine. The method includes determining the reference position in a coordinate system, determining a first desired position on the machine in the coordinate system, and determining the first desired position relative to the reference position. The method further includes updating a control system using the first relative desired position. | 09-01-2011 |
| 20110212340 | REDUCED FERRITE STEEL LINER - A steel liner with a case comprising at least 95% martensite, such as substantially 100% martensite, and a core comprising pearlite and discrete ferrite grains decorating former austenite grain boundaries. The ferrite in the liner's core has an average size of less than about 25 nm. | 09-01-2011 |
| 20110198860 | Generator Set With Removable Panels And Captive Bolt System - A method of retrofitting a generator set includes disconnecting a removable panel from a frame of a generator set housing. In order to accomplish this, short bolts associated with the removable panel are disconnected from nutserts that are permanently affixed to the frame. A removable panel compliance kit is installed to the generator set frame by threading long bolts through the nutserts and then attaching a pair of nuts in a locking configuration on each of the long bolts. The removable panel, which is modified to include keyhole shaped bolt openings, is then reconnected to the frame by advancing the long bolts further into the respective nutserts. | 08-18-2011 |
| 20110190942 | Lift arm and implement control system - A system for a loader stores a signal indicative of a desired inclination of an implement. Upon receiving an operator interface actuation signal, a controller transmits a signal to move the implement to the stored inclination. The controller further transmits a lift arm command signal to move a lift arm towards a lower limit of travel of the lift arm. The lift arm command signal is terminated after the controller receives a signal from a sensor on the lift arm indicating that the lift arm is near its lower limit of travel. After the command signal is terminated, the controller may transmit a second lift arm command signal to further move the lift arm. | 08-04-2011 |
| 20110186361 | DIFFERENTIAL STEERING CONTROL FOR A CONTINUOUSLY VARIABLE TRANSMISSION MACHINE - A differential steering control system and method for a machine includes a motor for steering the machine in a leftwards or a rightwards direction, a continuously variable transmission for moving the machine in a forwards or a backwards direction, and a control unit connected to the motor and the continuously variable transmission. The control unit determines the speed of the continuously variable transmission and based upon the determined speed, modifies a speed of the motor in order to achieve/maintain a desired turn radius for the machine. | 08-04-2011 |
| 20110185993 | IN-SITU GRAPHITE SHAPE CONTROL FOR IRON CASTINGS - A method to produce cast iron articles with various graphite morphologies is disclosed that provides cast iron with tailored properties at different locations of the article. Flake graphite morphology is preferably created at locations requiring excellent thermal conductivity or lubricity. Spheroidal graphite morphology is preferably created at locations requiring excellent strength or mechanical fatigue life. These methods may be particularly valuable for the production of heavy duty diesel engine components. | 08-04-2011 |
| 20110168813 | SOLENOID ACTUATED DEVICE AND METHODS - A solenoid actuated device such as a fuel injector includes an actuator body having a plurality of body pieces, and a single-pole solenoid actuator assembly positioned at least partially within the actuator body. The single-pole solenoid actuator assembly includes a one-piece compound armature housing having a load carrying component clamped between the first body piece and the second body piece, and a flux carrying component. The load carrying component includes a high structural strength and a low flux permeability, and the flux carrying component includes a low structural strength and a high flux permeability. A method of making a solenoid actuated device includes placing an armature at a sliding radial air gap with a flux carrying component of a one-piece compound armature housing, and establishing a structural load path by placing a load carrying component of the compound armature housing between a first actuator body piece and a second actuator body piece. A method of operating a single-pole solenoid actuator device includes supporting a flux carrying component of a one-piece compound armature housing with a load carrying component of the compound armature housing, channeling magnetic flux across a sliding air gap between a flux carrying component and the armature, and channeling a clamping load between a first actuator body piece and a second actuator body piece through the load carrying component of the compound armature housing. | 07-14-2011 |
| 20110154971 | Apparatus for Cutting Reinforced Hose with Reduced Interior Hose Contamination - A device for cutting reinforced hose to length with limited contamination gaining access to the interior of the hose is disclosed. The device may employ a first rotating blade to circumferentially cut through an outer cover of the hose without penetrating through an interior liner of the hose. The outer cover may be composed of an elastomeric cover reinforced with metallic strands. By preventing the first blade from penetrating the interior liner, the contamination from the kerf created by the blade is not able to access the interior of the hose. After the first blade performs its partial cut around the outer circumference of the hose, the hose may be cleaned and a second blade may be used to cut through the interior liner. The second blade results in very little contamination and thus a cut length of hydraulic hose is created with greatly reduced levels of contamination within the hose without needing a post-cutting cleaning operation. | 06-30-2011 |
| 20110154819 | SYSTEM FOR RECOVERING ENGINE EXHAUST ENERGY - A system for recovering engine exhaust energy is provided. The system includes an exhaust system including a first exhaust branch and a second exhaust branch. The system includes a first and a second group of exhaust valves associated with a plurality of engine cylinders. The system also includes an energy recovering assembly. The system further includes a control mechanism configured to control at least one of the first and second groups of exhaust valves according to a determined timing strategy based on at least one engine operating parameter. | 06-30-2011 |
| 20110153214 | Surface Mapping System And Method - A surface mapping system including a controller configured with a plurality of instructions, the plurality of instructions including instructions to receive position data from each machine in a plurality of machines located on a worksite and to generate, utilizing the received position data, a display signal for providing a visual depiction of a surface of the worksite. | 06-23-2011 |
| 20110153171 | System And Method For Limiting Operator Control Of An Implement - The disclosure describes, in one aspect, an implement control system that includes a controller operatively connected to an implement. The controller is adapted to receive a signal from an input device indicative of a desired implement movement by an operator and to receive an automatically generated signal indicative of an automatically determined implement movement. The controller is further adapted to determine whether to move the implement based on the input device signal or the automatically generated signal. The controller is adapted to generate a control signal to move the implement based on the input device signal when a portion of the implement is above a desired cutting plane. | 06-23-2011 |
| 20110153170 | System And Method For Controlling An Implement To Maximize Machine Productivity And Protect a Final Grade - The disclosure describes, in one aspect, an implement control system including a controller operatively connected to an implement. The controller is adapted to receive a first signal and a second signal from a system in operative communication with the implement. The first signal is indicative of a desired load control condition and the second signal is indicative of a desired grade control condition. The controller is further adapted to determine a first target position having a first comparable characteristic associated with the first signal and to determine a second target position having a second comparable characteristic associated with the second signal. The controller is also adapted to generate a control signal to move the implement to the first target position or to the second target position based in part on the first comparable characteristic and the second comparable characteristic. | 06-23-2011 |
| 20110153091 | Implement Angle Correction System And Associated Loader - A system for correcting an angle of an implement coupled to a loader is disclosed. The system includes a controller configured to receive a signal indicative of the speed of an engine on a loader and to receive a signal indicative of an actuation of an operator interface on the loader. The operator interface actuation signal commands movement of a lift arm on the loader. The controller is further configured to calculate an angle correction signal based at least upon the engine speed signal and the operator interface actuation signal and to transmit the angle correction signal to change an angle of a coupler configured to couple an implement to the lift arm. | 06-23-2011 |
| 20110153035 | Sensor Failure Detection System And Method - This disclosure relates to a system and method for detecting sensor failure and controlling a machine. The system includes a plurality of physical sensors, an electronic control module operably connected to the plurality of physical sensors, and a data storage unit operably connected to the electronic control module. The electronic control module is configured to retrieve calibration data associated with a plurality of input parameters, obtain a set of values of the plurality of input parameters, calculate a Mahalanobis distance of the set of values of the input parameters based on the calibration data, increment an evidence score of an input parameter if the Mahalanobis distance exceeds a threshold Mahalanobis distance value; and command a machine action when the evidence score of an input parameter exceeds an threshold evidence score value. | 06-23-2011 |
| 20110151760 | EXHAUST STACK WITH BAFFLES - An exhaust stack is disclosed for protecting exhaust system components from liquid entering an exhaust stack discharge port. The exhaust stack includes a first section defining a first flow passage extending along a first longitudinal axis and a second section having an open end and defining a second flow passage extending along a second longitudinal axis. The exhaust stack further includes a liquid drain disposed in the first section and one or more baffles disposed in the second flow passage, wherein the one or more baffles are configured to block line-of-sight between the open second end and any inner surface below the liquid drain | 06-23-2011 |
| 20110150616 | Linkage For An Earth-moving Machine - An assembly for controlling the angle of an implement on an earth-moving machine. The assembly includes an upper control arm, a lower control configured to mechanically interface with an implement; a rocker arm configured to pivotably couple the lower control arm to the upper control arm. | 06-23-2011 |
| 20110150614 | Lift arm control system - A system for a loader controlling movement of a lift arm of the loader near a limit of travel of the lift arm receives a signal indicative of the loader engine speed and a signal indicative of actuation of a sensor on the lift arm. A controller determines a lift arm command signal based at least upon the engine speed signal, and transmits the lift arm command signal to an electro-hydraulic system to control the movement of the lift arm adjacent the limit of travel of the lift arm. | 06-23-2011 |
| 20110149459 | ELECTRICAL BEARING GROUND DEVICE - An assembly, system and method are provided for discharging a rotating shaft encompassed by a stationary housing. The system includes an annular charge-dissipating component and a biasing element oriented to apply an axial force to the charge-dissipating component, holding it in contact with the shaft and the housing while the shaft is rotating. The biasing element may be a coil spring or a wave spring. A shaft grounding upgrade kit includes a conductive ring member and a cylindrical spring having a diameter that is the same as that of the conductive ring member. The spring constant of the cylindrical spring is such that the spring holds the conductive ring member within the housing in contact with the shaft and the housing. The conductive ring member may be constructed of gray iron and the cylindrical spring is one of a wave spring and a coil spring. | 06-23-2011 |
| 20110149458 | SYSTEMS AND METHODS FOR DETECTING SOLENOID ARMATURE MOVEMENT - A method for detecting actuation of an armature associated with a solenoid includes providing a voltage potential to a solenoid coil associated with the solenoid. The method also includes measuring a current flowing through the solenoid coil. The method further includes switching the voltage potential off when the measured current reaches a predetermined maximum value. The method also includes switching the voltage potential on when the measured current reaches a predetermined minimum value. The method further includes measuring a chop period between pulses associated with the switching on and off of the voltage potential. The method also includes analyzing successive chop periods to detect armature movement and armature seating. The method further includes determining, based on the comparison of chop periods, a pull-in time of an armature associated with the solenoid. | 06-23-2011 |
| 20110148856 | Parameter Visualization System - A parameter visualization system is disclosed that includes a controller configured to receive three-dimensional position data indicating a location of an earthmoving machine on a worksite, and to receive parameter information comprising values of a plurality of parameters. The plurality of parameters includes parameters of at least one of the earthmoving machine and the worksite. The controller is further configured to generate a first display signal configured to provide a value of a first parameter in the plurality of parameters, to receive a modification of the value of the first parameter, to calculate a value of a second parameter based on the modification of the value of the first parameter, and to generate a second display signal configured to provide a visual depiction of a value of at least one of the first parameter or the second parameter along a three-dimensional visual depiction of the worksite. | 06-23-2011 |
| 20110148188 | DEBRIS GUARD - A debris guard includes a plurality of fasteners and an outer cover including two or more sections that when assembled form an annular inner wall. Each of the two or more sections includes at least one mounting feature shaped to receive at least one of the plurality of fasteners. An inner guard includes a mounting portion and a seal. | 06-23-2011 |
| 20110147653 | PREPARATION METHOD FOR GAS ABSORBENT MATERIAL - A wet milling process for the creation of a mineral carbonation precursor material containing alkaline earth metal silicate and an alkaline earth metal oxide and the combining of the mineral carbonation precursor material with exhaust gases containing CO | 06-23-2011 |
| 20110147541 | CABLE STRAP LOCATING DEVICE FOR A WIRE HARNESS AND A WIRE HARNESS ASSEMBLY USING THE SAME - A cable strap locating device for a wire harness is disclosed. The device extends along an axial direction and the device includes a head and a tail. The head has a top surface, at least one side surface abutting the top surface, and an opening extending through the head and at least one side surface and substantially perpendicular to the axial direction. The tail is configured to be attached to the wire harness and extends from the head and along the axial direction. | 06-23-2011 |
| 20110147540 | Mounting Arrangement For Connecting Components To A Machine - A mounting arrangement for connecting components, such as a wiring harness or hydraulic lines, to a machine may include a planar attachment portion, a neck portion extending from the planar attachment portion, and a head portion extending from the neck portion. The head portion includes an end, a main section, and one or more retention ears extending from the main section and disposed adjacent the end. Further, the planar attachment portion, the neck portion, and the head portion are unitarily formed. | 06-23-2011 |
| 20110147495 | Fuel Injection Systems and Armature Housings - A housing for an armature of a fuel injector, a fuel injector and a fuel injection system are disclosed. The armature housing includes a first cylindrical portion for slidably accommodating the armature pin. The first cylindrical portion has a minimum inner diameter that is closely matched to the maximum outer diameter of the armature pin. A second cylindrical portion of the armature housing accommodates the armature. The second cylindrical portion has an inner minimum diameter that is closely matched to the maximum outer diameter of the armature. The disclosed armature housing provides more reliable and more consistent movement of the armature. | 06-23-2011 |
| 20110147494 | FUEL INJECTOR AND METHOD OF ASSEMBLY THEREFOR - A fuel injector and a method of assembly includes a determination of various flow areas through clearances or openings formed in various components of the injector. With the various flow areas determined, the various components can be classified according to their flow areas such that sets of components can be selected having desirable flow area characteristics for assembly of the fuel injector. | 06-23-2011 |
| 20110146721 | FILTER CLEANING TOOL AND METHOD - A tool for removing particulate matter from a diesel particulate filter (DPF) includes a container defining a chamber that has an open end, and a support associated with the open end that supports a first axial end of the DPF and forms a seal around an outside surface of the can of the DPF and the container. An air nozzle mounted proximate to a second axial end of the DPF directs a narrow flow of air through the DPF that passes through a portion of the DPF element bundle and exits through the first axial end into the container. | 06-23-2011 |
| 20110146600 | METHOD OF COOLING A HIGH PRESSURE PLUNGER - A pumping element for pressurizing a fluid within a fluid pump includes a plunger reciprocally disposed within a bore defined in a pump housing. The plunger and housing at least partially define a pressurization chamber into which fluid is pressurized. A flow path is defined between the plunger and the bore, the flow path permitting fluid to pass from the pressurization chamber during pressurization of fluid disposed therein. A weep annulus is formed between the plunger and the bore, the weep annulus being disposed adjacent to the bore and being part of a cooling circuit for the pumping element. The housing further defines cooling and drain passages which are in fluid communication with one another via the weep annulus. The plunger an bore are convectively cooled when cooling fluid is supplied to the weep annulus via the cooling passage and drained away via the drain passage. | 06-23-2011 |
| 20110146261 | SYSTEM AND METHOD FOR CONTROLLING AN ELECTRO-HYDRAULIC CHARGING SYSTEM - The disclosure describes, in one aspect, a control system for charging an electro-hydraulic charging system. The control system including at least one sensor operatively coupled to an engine for sensing at least one engine parameter indicative of an operating status of the engine and a controller adapted to charge the charging system when the operating status of the engine is determined to be stable. | 06-23-2011 |
| 20110146254 | SCR REDUCTANT MIXER - An engine exhaust aftertreatment system including a mixer disposed in the exhaust stream. The mixer includes a mesh section having a mesh of wires and may include a baffle section having a deflector that redirects a direction of flow of the exhaust stream. The mesh section may not extend across an entire width of an exhaust conduit containing the exhaust stream. The mesh section may also be sized and located to intersect the reductant introduced by the injector. | 06-23-2011 |
| 20110146248 | Radial mounting for regeneration device - An exhaust treatment system for machine is disclosed that includes a burner body having an inlet for receiving a flow of exhaust, an outlet for the exhaust flow to exit, an opening and a receiving mount disposed around the opening. A fuel injector head is mounted over the opening in any one of a plurality of angular positions relative to the body. The burner body includes a plurality of mounting pads extending at least partially and circumferentially around the burner body for coupling a support bracket to the burner body in any one of a plurality of positions relative to the burner body. The support bracket may be used to couple the burner to a fixture device such as a cradle for supporting other exhaust treatment system components. | 06-23-2011 |
| 20110146247 | METHOD FOR INTRODUCING A REDUCTANT INTO AN EXHAUST STREAM - A method of introducing reductant to an exhaust stream is disclosed. The method may include ordering a first dosing event, supplying a reductant to a dispensing device in response to ordering the first dosing event, dispensing reductant from the dispensing device into the exhaust stream, and forcing reductant from the dispensing device toward a reductant source, wherein sufficient reductant remains in a pumping device and a fluid passage to keep the pumping device primed. | 06-23-2011 |
| 20110146246 | REGENERATION ASSIST TRANSITION PERIOD - A power system comprising an engine that produces exhaust, a particulate filter that traps soot from the engine, and a controller that switches the power system from a first operation mode into a second operation mode to regenerate the particulate filter wherein a transition between the first operation mode and the second operation mode occurs at a slower rate when an amount of soot in the particulate filter changes relative to a threshold than when a load on the engine changes. | 06-23-2011 |
| 20110146245 | SULFUR DETECTION ROUTINE - A power system comprising an engine that produces exhaust, an aftertreatment system that treats the exhaust and includes a particulate filter that traps soot from the engine, and a controller configured to perform a sulfur detection routine that conducts a pre-regeneration calibration to achieve a temperature in the aftertreatment system of between 200 and 400 degrees Celsius and following the pre-regeneration calibration conducts a sulfur removal calibration to achieve a temperature in the aftertreatment system of between 300 and 500 degrees Celsius. | 06-23-2011 |
| 20110146244 | REGENERATION ASSIST DELAY PERIOD - A power system comprising an engine that produces exhaust, a particulate filter that traps soot from the engine, and a controller that switches the power system from a first operation mode into a second operation mode to regenerate the particulate filter in response to a load on the engine changing and a threshold amount of time greater than zero passing after the load on the engine changed. | 06-23-2011 |
| 20110146236 | Exhaust Aftertreatment System - An exhaust aftertreatment system including an exhaust flow area, a first bank of one or more exhaust treatment devices in fluid communication with the exhaust flow area and a second bank of one or more exhaust treatment devices in fluid communication with the exhaust flow area. The first bank may be arranged in parallel with the second bank and inlet of the first bank is configured to provide greater flow resistance to the exhaust than the inlet of the second bank | 06-23-2011 |
| 20110146234 | POWER SYSTEM HAVING ADDITIVE INJECTOR - A power system is provided. The power system includes a power source configured to generate a flow of exhaust including particulate matter. The power system also includes a fuel supply line connecting a fuel supply and the power source, and being configured to direct a fuel flow from the fuel supply to the power source. An additive injector is configured to inject an additive into the fuel flow. An ionization device is at least partially disposed within the flow of exhaust, and is configured to apply a charge to the particulate matter and the additive. A particulate filter is configured to remove the particulate matter and the additive from the flow of exhaust. | 06-23-2011 |
| 20110146233 | REGENERATION ASSIST CALIBRATION - A power system comprising an engine that produces exhaust, a fuel system that injects a fuel into the engine, an aftertreatment system that treats the exhaust, and a controller. The aftertreatment system includes an oxidation catalyst that converts NO from the engine into NO2, a particulate filter that traps soot from the engine, and a sensor that provides an indication of the amount of soot in the particulate filter. The controller increases an engine fuel injection pressure when the amount of soot in the particulate filter is above a threshold. | 06-23-2011 |
| 20110139113 | Compound Sealing Mechanism, Cylinder Liner, And Engine Assembly Method - A cylinder liner and compound seal assembly for an internal combustion engine includes a cylinder liner having a liner body with an outer surface and an inner surface defining a longitudinal bore. The cylinder liner further includes a first axial end, and a second axial end which includes a sealing surface and a protective end projection extending in an axial direction from the sealing surface. A compound sealing mechanism for establishing seals between an engine head and an engine housing includes a one-piece gasket body having an outer radial region and an inner radial region which includes a combustion seal having an engine head sealing surface and a cylinder liner sealing surface, and a recess formed in the lower surface and located radially outward of the cylinder liner sealing surface and configured to receive therein a protective end projection of the cylinder liner. The recess may include a continuous annular recess circumferential of a center axis of a cylinder opening formed in the one-piece gasket body, and positioned adjacent the cylinder liner sealing surface. The protective end projection may include a continuous annular projection arranged coaxially with the longitudinal bore and positioned adjacent an inner surface of the cylinder liner. | 06-16-2011 |
| 20110135383 | Pin Joint Component With Improved Wear Surfaces - The present disclosure is directed to a pin joint component for a pin joint assembly that has improved wear surfaces, especially for those portions of the pin joint component surface that interface thrust rings, lips, and other adjacent wear components. The pin joint component comprises a first treated region that is formed by removing material from the wear surface of the pin joint component and replaced with clad material. Prior to this operation, a second treated region is formed by removing material from a section of the pin joint component distinct from the first treated region and performing a nitriding process thereon. | 06-09-2011 |
| 20110132828 | Fluid Filter System - An endcap including a first plate member including a radial inner portion, a radial outer portion, and defining a longitudinal axis. The endcap also includes a flange disposed between the radial inner and outer portions of the first plate member and projecting axially along the longitudinal axis in a first direction. The endcap also includes a first seal member disposed adjacent the flange. The first seal includes a first portion thereof engaged with an axial facing surface of the first plate member and a second portion thereof engaged with a radially facing surface of the flange. The endcap further includes a second plate member disposed radially outward of the radial outer portion and a second seal member disposed adjacent the second plate member including at least a portion thereof axially spaced from the axially facing surface of the first plate member in a second direction along the longitudinal axis opposite the first direction. | 06-09-2011 |
| 20110132293 | FLUID INJECTOR WITH THERMAL LOAD CONTROL - A common rail single fluid injection system includes fuel injectors and control valve assemblies with an internal cooling fluid circuit to improve overall life and performance of the injector. This is accomplished by supplying cooling fluid to the injector and allowing the same to come in direct contact with one of the hottest locations within the fuel injector; the high-pressure leak split spot. By providing cooling fluid directly to this location and then allowing the cooling fluid to drain out of the injector, the present disclosure effectively and efficiently manages thermal loads within the injector. | 06-09-2011 |
| 20110131968 | METHOD FOR CONTROLLING A PUMP AND MOTOR SYSTEM - A method of controlling a pump and motor system having at least one of a variable displacement pump and a variable displacement motor. The method may comprise providing an engine drivingly coupled to a primary load and a secondary load, the secondary load being driven by the pump and motor system. The method may also comprise sensing a change in engine speed in response to a change in the primary load. The method may further comprise changing the engine speed to compensate for the primary load change. The method may further comprise changing a displacement of the at least one variable displacement pump and the variable displacement motor to maintain a constant secondary load. | 06-09-2011 |
| 20110129359 | VARIABLE OUTPUT PUMP - An variable output pump is disclosed. The variable output pump having a rotatable first shaft, a first pumping element mounted to the rotatable first shaft, and a coupling mechanism configured to couple the first pumping element to the first shaft for rotation therewith in a first mode, and decouple the first pumping element from the rotatable first shaft in a second mode. A method for varying the output of a fluid pump is also disclosed. The method including rotating a first pumping element and a second pumping element; and preventing rotation of the first pumping element in response to an increase in fluid pressure, while continuing to rotate the second pumping element. | 06-02-2011 |
| 20110126393 | FUEL INJECTOR TIP AUTOFRETTAGE PROCESS - A production robust autofrettage process for strengthening fuel injector nozzle tips includes applying a vacuum to the interior volume of the nozzle tip. Plugs are suctioned over each of the nozzle outlets. Nozzle outlets are blocked by pressing the plugs between the nozzle tip and a fixture component. The nozzle tip is then autofrettaged at least in part by pressurizing the interior volume with an autofrettage liquid. The plugs are then removed from the nozzle outlets leaving the nozzle tip strengthened with compressive residual stress, especially in the sac region of the interior volume of the nozzle tip. | 06-02-2011 |
| 20110125376 | AUTOMATIC DOWNHILL SPEED CONTROL SYSTEM - A method for automatically controlling the downhill speed of a machine. The method includes establishing a target machine speed based on a current machine speed and determining whether at least one trigger condition including a grade greater than a predetermined threshold has been satisfied. If satisfied, the method activates a control system to control at least one of a powertrain retarder and a change in a transmission gear to prevent exceeding the target machine speed. | 05-26-2011 |
| 20110124462 | Multi-Speed Transmission - A multi-speed transmission may include an input member and an output member disposed in a housing. A first planetary gear set, a second planetary gear set, a third planetary gear set, and a fourth planetary gear set may also be disposed in the housing, each planetary gear set including a sun gear, a planet carrier, and a ring gear. Six control elements may be operably coupled to the planetary gear sets and selectively engageable to create a set of different gear ratios between the input member and the output member, the set of different gear ratios including at least nine forward gear ratios and at least two reverse gear ratios. | 05-26-2011 |
| 20110124240 | ONE-PIECE TERMINAL BLOCK ASSEMBLY - The present disclosure is directed to a terminal assembly member for electrically connecting output leads to external systems and equipment, including a one piece insulating body formed from high-pressure molten plastic/nylon, adapted for mounting to an external portion of a generator housing; one or more conductive inserts over-molded within the one piece insulated body, the conductive inserts having at least one threaded bore for receiving a bolt; and one or more bronze alloy lug structures over-molded within the one piece insulated body, the one or more lug structures having a generally L-shaped geometry and a plurality of bores adapted for attaching terminal ring carriers. | 05-26-2011 |
| 20110114410 | Tandem Wheel Arrangement - A machine ( | 05-19-2011 |
| 20110109154 | Bushing For A Track-Type Undercarriage - A bushing for use in a tracked undercarriage of a track-type machine includes a first end and a second end disposed opposite the first end. An outer surface extends between the first end and the second end and is shaped to engage a sprocket of the tracked undercarriage. The bushing also includes an annular inner surface disposed between the first end and the second end defining an internal cavity shaped to receive a track pin. An innermost portion of the inner surface forms a crown having a radius less than or equal to (PL | 05-12-2011 |
| 20110108294 | Variable Wheelbase Motor Grader - A motor grader with an adjustable wheel base is disclosed. The motor grader may include front and rear wheels supporting a chassis and a main frame. A working blade may downwardly depend from the main frame between the front wheels and rear wheels to perform work on the ground below. The motor grader may also provide an adjustable wheel base to allow the center of gravity of the motor grader to better match the work load being addressed. The adjustable wheel base may also provide more swing clearance for the blade relative to the rear wheels, allow for an adjustable articulation angle, and minimize structural loads on the motor grader, particularly during ripping operation. The wheel base may be adjustable by providing structure through which the relative positions of the rear wheels can be altered automatically, manually, and dynamically. | 05-12-2011 |
| 20110101680 | FLUID COUPLING ASSEMBLY AND METHOD OF MANUFACTURE - A coupling assembly for use with a wire-reinforced elastomeric hose member includes a stem member defining at least one groove and the groove includes first and second walls, a bottom portion and a pair of shoulder portions separated by a width and a shell member at least partially enclosing said stem member and defining at least one axially extending barb member. The barb member includes a tip portion having first and second edge portions. The tip of the barb member is sized relative to the shoulders in said groove to transfer force developed by deflection of the reinforcement wire to compress a liner of the hose at the shoulders through the barb edge portions corresponding to a swaged state of the shell and stem members. | 05-05-2011 |
| 20110100317 | Weight balanced internal combustion engine piston - A piston for an internal combustion engine includes a piston crown connected to and above a body portion of the piston. The body portion forms two pin bores and the piston crown defines an outer cylindrical wall. At least one piston ring seal groove is formed in the outer cylindrical wall and extends peripherally around the piston crown. A first oil collection groove is formed in the outer cylindrical wall below the piston ring seal groove. The first oil collection groove has a first width measured along a centerline of the piston. A second oil collection groove is formed in the outer cylindrical wall below the first oil collection groove, extends parallel to the first oil collection groove around the entire periphery of the piston, and has a width that is at least double the width of the first oil collection groove. | 05-05-2011 |
| 20110099996 | EXHAUST AFTERTREATMENT SYSTEM - An exhaust aftertreatment system for an engine is disclosed. The exhaust aftertreatment system including a first exhaust passage, an SCR catalyst disposed in the first exhaust passage, a second exhaust passage parallel with the first exhaust passage and fluidly coupled to the first exhaust passage upstream of the SCR catalyst and a container disposed in the second exhaust passage, the container configured to hold a volume of urea and to direct exhaust from the second exhaust passage through the volume of urea in the container. | 05-05-2011 |
| 20110094476 | PRESSURE RELIEF VALVE - A pressure relief valve is disclosed. The pressure relief valve comprises a body, a valve member, and a resilient member. The body includes a guide bore, a seat surface, an inlet, a first outlet, and a second outlet. The valve member is received within a portion of the body and includes a guide portion received within the guide bore, a valve seat configured to sealingly engage the seat surface, and an internal passage. The resilient member biases the valve seat into engagement with the seat surface. The valve member is moveable between a first position in which the inlet is fluidly blocked from the first outlet and the second outlet, a second position in which inlet is fluidly coupled to the first outlet but not to the second outlet, and a third position in which the inlet is fluidly coupled to the first outlet and the second outlet. | 04-28-2011 |
| 20110094214 | HIGH RESPONSE HYDRAULIC ACTUATOR - A hydraulic actuator for pump control is disclosed. The hydraulic actuator includes two hydraulically isolated chambers for actuation in one direction and two hydraulically isolated chambers for actuation in an opposite direction. Each of the four chambers is connected to a source of high pressure fluid by an electronically controlled pressure reducing valve. | 04-28-2011 |
| 20110094213 | METHOD AND APPARATUS FOR CONTROLLING A PUMP - An electro-hydraulic control system for pump control is disclosed. The hydraulic actuator is configured to control the inclination of a swashplate. The position of the hydraulic actuator is controlled by controlling the flow of pressurized fluid into and out of two pressure chambers, one on either side of the actuator. A fluid passageway is provided that selectively connects the passageway to tank. The passageway has an orifice for each pressure chamber, and the actuator is configured to selectively block all or a portion of one or more of the orifices, depending on the position of the actuator. The components of the control system are configured such that the actuator will return to a neutral or near-neutral position upon loss of electric power. | 04-28-2011 |
| 20110089655 | Wheel Speed Sensing System and Method - An improved speed sensing system is disclosed for a machine, such as a truck, that has an axle with an end and an axis. The machine further includes a sensor non-rotatably coupled to the end of the axle and coaxial with the axis. A wheel hub is rotatably coupled to the axle and a wheel cover is coupled to the wheel hub. The machine further includes a magnet coaxially disposed with the axis and coupled to the wheel cover for rotation about the axis as the wheel rotates. The sensor generates signals based on the rotational speed of the magnet and the wheel. For non-rotating axles that are solid or include solid spindles, a passageway for a communication line between the sensor and electronic control module (ECM) may be easily drilled thereby making the disclosed system easy to add to an existing machine or vehicle. | 04-21-2011 |
| 20110085757 | THRUST PLATE FOR ENGAGING A BEARING OF A DRIVE ASSEMBLY - A thrust plate for use in a drive assembly between an end of an axle shaft and a bearing, the bearing retained within a housing of a rotatable final drive component, the thrust plate having a first end that defines an axle engaging wear surface and a second end that includes an extension configured for fitted engagement with the bearing, the thrust plate further including a central axis of rotation, where the axle engaging wear surface is disposed transverse to the central axis. A thrust plate and bearing assembly for a final drive cover plate includes the thrust plate in combination with a spherical thrust bearing, these components also being provided in a rebuild kit. | 04-14-2011 |
| 20110084044 | Lightweight High-Performance Pipelayer - A pipelayer providing higher lifting capacities without adding weight or size to an undercarriage or boom of the pipelayer is disclosed. The pipelayer is designed and sized to have a maximum lifting capacity when the boom is extended from the undercarriage a predetermined, relatively short distance. However, in use the boom often needs to extend further away from the undercarriage, and in so doing the lifting capacity of the pipelayer decreases. The present disclosure provides additional lifting capacity in that extended range by selectively deploying a counterweight away from the undercarriage once the boom is extended past the predetermined distance. In so doing, not only is the lifting capacity of the pipelayer increased, but the size and weight of the undercarriage and boom are not increased. This enables standard sized undercarriages and other supporting structure to be used, thereby aiding in maneuverability and shipping of the pipelayers, while at the same time reducing manufacturing and usage costs. | 04-14-2011 |
| 20110083762 | HYDRAULIC SYSTEM HAVING A BACKPRESSURE CONTROL VALVE - A hydraulic system for a machine is disclosed. The hydraulic system has a source of pressurized fluid, a fluid actuator, and a tank. The hydraulic system utilizes a directional control valve to direct flow between the source, the actuator, and the tank. The hydraulic further utilizes a variable backpressure control valve to control the system backpressure. | 04-14-2011 |
| 20110083635 | AIR CLEANER SCAVENGE KIT - The present disclosure provides a method and apparatus for removing debris from an air cleaner of an internal combustion engine. The method includes receiving a flow of air from a source of air flow associated with an internal combustion engine at a first end portion of a conduit and passing the flow of air towards a second end portion of the conduit. The method also includes passing the flow of air into a scavenging conduit of the air cleaner towards an exhaust end of the scavenging conduit and creating a suction pressure at an end of the scavenging conduit connected to the air cleaner. The suction pressure results in a drawing in of the debris from the air cleaner. | 04-14-2011 |
| 20110079451 | Strength Track Bushing - An improved strength track bushing ( | 04-07-2011 |
| 20110079006 | METHOD AND APPARATUS FOR CONTROLLING A VARIABLE DISPLACEMENT HYDRAULIC PUMP - A control system for a variable displacement hydraulic pump is disclosed. The control system utilizes two flow control valves to provide a flow of hydraulic fluid to two control actuators. The control actuators create opposing moments on the pump swashplate to control swashplate orientation and pump displacement. | 04-07-2011 |
| 20110079004 | Exhaust Flow Apparatus and Associated Engine Exhaust System - An exhaust flow apparatus including an exhaust carrier having first and second opposing end portions, the first and second end portions each including and terminating at an end, the end of the first end portion defining an exhaust inlet, and the second end portion defining a plurality of exhaust carrier outlets, wherein at least the second end portion of the exhaust carrier is configured to be housed within an exhaust pipe of an exhaust stack. The exhaust flow apparatus further includes an exhaust deflector oriented on or in proximal relation to the end of the second end portion of the exhaust carrier such that the exhaust deflector directs exhaust toward one or more of the plurality of exhaust carrier outlets during use of the apparatus. | 04-07-2011 |
| 20110079003 | REDUCTANT NOZZLE INDENTATION MOUNT - An engine exhaust aftertreatment system including a bend routing an exhaust flow in a curved direction to a straight part. A nozzle is mounted in the bend to introduce a spray of a fluid with a axis of symmetry into the exhaust flow. The axis of symmetry intersects the exhaust flow traveling in the curved direction at a intersection angle of less than 50 degrees. | 04-07-2011 |
| 20110075960 | AXLE SHAFT COVER PLATE WITH BEARING ASSEMBLY - A cover plate for a drive assembly that includes a bearing housing having a bearing cavity, a thrust bearing axially disposed within the bearing cavity that includes a cup, cone and plurality of rollers disposed between cup and cone raceways, a thrust plate with an axle engaging surface disposed perpendicular to a central axis and coupled for rotation to the cone. The cover plate may be connected to a final drive housing of a final drive that includes a plurality of gears operatively connected to an axle shaft, the end of the axle shaft positioned to rotationally engage the thrust plate and cone. | 03-31-2011 |
| 20110073681 | REMANUFACTURED FUEL INJECTOR TIP AND FUEL INJECTOR TIP REMANUFACTURING PROCESS - A method of manufacturing a fuel injector having high-flow orifices in its tip includes removing a bulb from a fuel injector tip having at least one spray orifice with a first diameter, and friction welding a slug to the fuel injector tip, including forming a fused interface of material of the slug and material of the fuel injector tip. The method further includes modifying the slug subsequent to friction welding the slug to the fuel injector tip, including forming a new bulb from the slug having at least one spray orifice therein with a different diameter than that of the removed bulb. A remanufactured fuel injector, and fuel injector tip, includes an injector tip body having a first tip portion of a first material and a second tip portion of a material compatible for friction welding with the first material. The injector tip body further includes a third tip portion attaching the first tip portion to the second tip portion, the third tip portion including a friction weld formed during remanufacturing of the fuel injector tip. | 03-31-2011 |
| 20110073537 | Canister Filter System With Drain That Cooperates With Filter Element - A filter element disclosed herein includes a center tube defining a central reservoir and including an interior sidewall. The filter element further includes an end plate and a pocket defining a port extending from the end plate into the central reservoir. The pocket includes an inner wall, an outer wall, and a plurality of projections extending from the outer wall of the pocket toward the interior sidewall of the center tube. | 03-31-2011 |
| 20110073392 | HYBRID ENERGY MANAGEMENT SYSTEM - A hybrid energy management system that estimates the net regenerative energy that can be collected during the breaking action of the swing mechanism, then, since this is the net energy that can be used to recharge an energy storage device without using the engine to help recharge the energy storage device, the system limits the use of the energy storage device to that net amount predicted to be available from the recovery period. The net regenerative energy is calculated by considering motor and inverter efficiencies for transferring energy to the battery and changes in the boom/stick/bucket inertia moment. | 03-31-2011 |
| 20110072809 | HYDRAULIC SYSTEM AND METHOD FOR CONTROL - A hydraulic system is disclosed having at least two hydraulic circuits. The disclosed system apportions flow between the two hydraulic circuits based on an assumed flow rate that is held constant in both power-limited and non-power-limited conditions. | 03-31-2011 |
| 20110068065 | FILTER ASSEMBLY - A filter assembly for filtering particles from a fluid is disclosed. The filter assembly comprises a first plate, a second plate, and a channel. The first plate includes a first face, a second face, and a first set of apertures extending between the first face and the second face. The second plate includes a third face, a fourth face, and a second set of apertures extending between the third face and the fourth face. The second plate is coupled to the first plate such that the third face faces the second face. The channel is between at least a portion of the second face and at least a portion of the third face. The channel provides fluid communication between the first set of apertures and the second set of apertures and has a depth. The depth of the channel determines a filtration level. | 03-24-2011 |
| 20110064588 | INLET THROTTLE CONTROLLED LIQUID PUMP WITH CAVITATION DAMAGE AVOIDANCE FEATURE - A liquid pump includes an electronically controlled throttle inlet valve to control pump output. With each reciprocation cycle, a plunger displaces a fixed volume of fluid. When less than this fixed volume is desired as the output from the pump, the electronically controlled throttle inlet valve throttles flow past a passive inlet check valve to reduce output. As a consequence, cavitation bubbles are generated during the intake stroke. Cavitation damage to surfaces that define the inlet port passage are avoided by a specifically shaped and sized cavitation flow adjuster extending from the valve member of the passive inlet check valve. By positioning the cavitation flow adjuster in the inlet port passage, a flow pattern is formed in a way to encourage cavitation bubble collapse away from surfaces that could result in unacceptable cavitation damage to the pump. | 03-17-2011 |
| 20110062805 | SWITCHED RELUCTANCE MACHINE WITH EDDY CURRENT LOSS DAMPENER - A variable reluctance machine is disclosed, such as a switched reluctance machine, the machine having a rotor, a stator, a housing, and a magnetic eddy current dampening component disposed between stator and housing. The magnetic eddy current dampening component not only reduces the eddy current's impact on surrounding electronics, it also assists in increasing the efficiency of the switched reluctance machine. | 03-17-2011 |
| 20110056464 | COOLING FEATURE FOR FUEL INJECTOR AND FUEL SYSTEM USING SAME - A thermal load control assembly for a fuel injector includes a rail inlet port, a cooling inlet port and a fuel drain port. A leakage path channels leaked fuel originating from the rail inlet port to the fuel drain port. A cooling path channels fuel originating from the cooling inlet port to the fuel drain port. A fuel system using a thermal load control assembly includes a single fuel tank that supplies fuel to the rail inlet port and the cooling inlet port of a plurality of fuel injectors and collect fuel from the fuel drain port of the plurality of fuel injectors. | 03-10-2011 |
| 20110051558 | System for Determining the Work Time of a Work Tool - A system for determining the work time of a work tool is disclosed. The system has a work tool. The system also has a work tool movement sensor adapted to produce a signal indicative of a movement of the work tool. The system further has a controller adapted to produce a signal indicative of a work time of the work tool as a function of the movement of the work tool. | 03-03-2011 |
| 20110048857 | LUBRICATION SYSTEM - In one aspect a method for lubricating a tribosystem is provided that may include providing a new tribosystem including at least two solid surfaces that interact during operation of the tribosystem and providing lubrication oil for lubricating the tribosystem. The method may further include operating the tribosystem while lubricating the tribosystem with the lubrication oil during an initial period and supplying anti-wear additives to the lubrication oil at the end of the initial period. In another aspect a lubrication assembly for containing lubrication oil may be provided. The lubrication assembly may include an anti-wear additive storage and a releaser that is configured for releasing anti-wear additive from the anti-wear additive storage into the lubrication oil after an initial period of operation. | 03-03-2011 |
| 20110048384 | BEARING ARRANGEMENT FOR A PUMP - A fluid pump is disclosed. The fluid pump may comprise a housing, a tapered bearing, a drive shaft, a first fluid chamber, and a second fluid chamber. The housing defines a bore. The tapered bearing is received within the bore of the housing. The drive shaft is received within the tapered bearing. The first fluid chamber is defined between the housing and the drive shaft on a first side of the tapered bearing. The second fluid chamber is defined between the housing and the drive shaft on a second side of the tapered bearing. The second fluid chamber is separated from the first fluid chamber by the tapered bearing. The housing includes a fluid passage fluidly coupling the first fluid chamber and the second fluid chamber. | 03-03-2011 |
| 20110048379 | FLUID INJECTOR WITH RATE SHAPING CAPABILITY - A common rail single fluid injection system includes fuel injectors with one or two control valve assemblies with the ability to produce ramp, square and split injection rate shapes. This is accomplished by including a check speed control device disposed between a first and second check control chamber within a cavity defined by the injector body. The control valves and check speed control device control the speed of a check by controlling the flow of fuel out of the first and second check control chambers. | 03-03-2011 |
| 20110048105 | Dilution System Test Apparatus With Added Capability And Method Of Operating Same - A partial dilution exhaust sampling system has an expanded ability to simultaneously perform two different evaluations on exhaust from a power source. Beyond testing for particulate matter production, the system may simultaneously evaluate exhaust for undesirable gaseous emissions such as NOx and carbon dioxide and/or concurrently evaluate particle size and distribution in the exhaust sample. After extracting sample flow from the exhaust stream of the power source and adding diluent to the sample flow, the diluted sample flow is divided into a first portion flow and a second portion flow. Depending upon whether the additional exhaust evaluation device is in parallel with the particulate measurement gravimetric filter or in series with the filter, a dilution flow actuator and/or an exit actuator may be adjusted to account for a fraction of diluted sample flow directed to the auxiliary exhaust evaluation device. | 03-03-2011 |
| 20110046857 | Implement Control System For A Machine - This disclosure relates to a control system for a machine implement. The control system includes a measurement sensor configured to provide an implement measurement signal indicative of a velocity of a machine implement, and a controller. The controller is configured to provide an implement measurement signal and an operator command signal, and to determine an adjusted implement command based signal based on the implement measurement signal and the operator command signal. | 02-24-2011 |
| 20110044752 | Lateral Pin Retention System and Method - A pin joint includes a pin having a longitudinal axis. A bushing for use with a lateral pin retention system may be positioned around the pin. The bushing includes an arc groove disposed radially about an outer surface of the bushing. A retaining plug for use with the lateral pin retention system includes an engagement head shaped to engage the arc groove and may be attachable to a linkage of a machine. | 02-24-2011 |
| 20110041483 | METHOD OF CONTROLLING FUEL IN AN EXHAUST TREATMENT SYSTEM IMPLEMENTING TEMPORARY ENGINE CONTROL - An exhaust treatment system associated with a power source is disclosed. The exhaust treatment system may have a filter located to remove particulate matter from a flow of exhaust, and a regeneration device located proximal the filter. The exhaust treatment system may also have a first fluid handling component located upstream of the power source to vary an amount of oxygen in the flow of exhaust, a second fluid handling component located downstream of the power source to vary the amount of exhaust air flow in the exhaust circuit, and a controller in communication with the regeneration device and the fluid handling component. The controller may determine a need for filter regeneration, and determine adjustments to the first and second fluid handling components required to provide sufficient oxygen and air mass flow in the exhaust for filter regeneration. The controller may further determine an effect the adjustments will have on operation of the power source, and determine corrections for the power source to account for the effects. The controller may substantially simultaneously implement the adjustments and the corrections. | 02-24-2011 |
| 20110041305 | HYDRAULIC LIP SEAL INSTALLATION DRIVER TOOL - The presently disclosed embodiment involves a hydraulic seal installation tool having an elongate body portion fixedly attached to a holding portion. The elongate body portion has a hydraulic cylinder actuation means, and a driver mechanism head portion is coupled to the elongate body portion. | 02-24-2011 |
| 20110035112 | STEERING SYSTEM HAVING MULTIPLE STRATEGIES AND VARIABLE DEADZONE - A steering system for a machine having at least one steerable traction device is disclosed. The steering system may have a steering actuator operatively connected to the at least one steerable traction device, and a travel speed sensor configured to generate a signal indicative of a travel speed of the machine. The steering mechanism may also have an operator input device having a deadzone. The deadzone may vary in response to the signal. The steering system may also have a controller in communication with the steering actuator, the operator input device, and the travel speed sensor. The controller may be configured to affect operation of the steering actuator in response to operation of the operator input device only when the operation of the operator input device deviates from the deadzone. | 02-10-2011 |
| 20110035109 | STEERING SYSTEM WITH AUTOMATED ARTICULATION CONTROL - An articulated machine and method of operation, the articulated machine having a first frame with a first traction device and a steering apparatus that controls a steering angle thereof, the first frame pivotally coupled to a second frame at an articulation joint, the second frame having a second traction device, a steering sensor configured to provide a steering signal indicative of the steering angle, and an electronic controller configured to automatically control an articulation angle based on the steering signal. | 02-10-2011 |
| 20110030377 | COMBUSTOR - A combustor includes a first wall, a second wall, an injector grommet, a combustor longitudinal axis, and a connection assembly indirectly connecting the first wall to the second wall. A portion of the injector grommet is disposed within a groove of the connection assembly. | 02-10-2011 |
