International Engine Intellectual Property Company LLC Patent applications |
Patent application number | Title | Published |
20160131067 | Automated Assembly of ECU Calibrations - A system and method for building engine calibrations for the operation of an engine. The system includes a processor that is operatively coupled to a memory. The system identifies a plurality of features, which may be stored on a memory, relating to the operation of the engine. Each of the plurality of features is associated with a feature calibration data file. A user may selected, such as via operation of an input, which features are to be used in building engine calibrations. The system may implement rules that identify which of the selected features may be combined with other selected features in creating the engine calibration build. The feature calibration files for permissible combinations of features may then be assembled and used in generating an engine calibration. | 05-12-2016 |
20160126809 | Electric-Electronic Actuator - An actuator housing assembly that includes an actuator housing that has a cavity that contains a phase-change material that is configured to continue to absorb heat as the phase-change material changes phases. The actuator housing assembly also includes an electronic actuator that is secured to the actuator housing. At least a portion of the cavity may be positioned to surround at least a portion of the electronic actuator. The phase-change material is configured to prevent the transfer of heat in the actuator housing to the electronic actuator. The actuator housing may also include an electronic control board that is used in controlling the operation of the electronic actuator. | 05-05-2016 |
20160123258 | UPSTREAM NOX ESTIMATION - A method for controlling operation of an internal combustion engine determines an estimated NOx value as a function of at least one engine operating parameter. The method also determines an actual NOx value using a NOx sensor positioned in an exhaust gas stream of the internal combustion engine. The method detects at least one condition indicative of whether or not the actual NOx value is accurate. The actual NOx value is used for controlling engine operation when the at least one condition indicates that the actual NOx value is accurate, while the estimated NOx value is used for controlling engine operation when the at least one condition indicates that the actual NOx value is inaccurate. | 05-05-2016 |
20160123242 | Engine Braking - A method for enhancing engine brake horsepower. The method includes generating an engine brake horsepower by compressing air in a cylinder of an engine. Additionally, fuel is injected into the compressed air in the cylinder. The injected fuel is combusted in the compressed air in the cylinder prior to the piston reaching the top dead center position in the at least one cylinder. The compressed combustion products are also released before the piston passes the top dead center position. The combustion of the fuel during the engine braking event allows the engine braking to be a throttable event. Further, the quantity of fuel introduced into the cylinder for combustion may be adjusted so that the engine braking horsepower remains relatively consistent despite changes in engine speed. | 05-05-2016 |
20160121822 | HARNESS CLIP AND SYSTEM FOR CLIPPING WIRING HARNESS - A harness clip for clipping a wire to mounting supports of a vehicle includes a body and a tie-strap. The body includes a clip portion having a generally “U”-shaped channel for receiving the wire at an interior surface of body. The clip portion has two openings from the interior surface to an exterior surface opposite of the interior surface. The body also includes a mount-receiving portion extending from the clip portion. The mount-receiving portion includes two legs that are configured to engage the mounting supports. The tie-strap is engaged to the body and includes a cord that is inserted through the two openings in the clip portion of the body to generally encapsulate the wire with the clip portion. The tie-strap is configured to be tightened around at least a portion of the wire. | 05-05-2016 |
20160115921 | INJECTOR WAVEFORM - A system for controlling the displacement of a spool in a spool valve of a fuel injector. One or more coils may be employed to move the spool between closed and open positions in the fuel injector. The shape of the current waveform used to generate a magnetic field in one or more coils for displacing the spool may vary depending on engine operating conditions. Moreover, the shape of the current waveform applied to coils in the fuel injector may be different for engine operating conditions. Such differences in waveform shape may at least assist, in real time, with the engine obtaining improved engine emissions and/or otherwise obtaining fuel injection goals. | 04-28-2016 |
20160108862 | HYDROGEN RICH EGR SYSTEM AND METHOD - A system and method for hydrogen rich exhaust gas recirculation are provided. The system includes the addition of a supplemental injector injecting additional natural gas beyond the stoichiometric point into one of the engine cylinders. After combustion, the exhaust of the cylinder remains high in hydrogen. The exhaust is then routed through a hydrogen rich exhaust path to an exhaust gas recirculation mixer where is it mixed with natural gas and exhaust gas from the other cylinders. The resultant mixture is then routed to all of the cylinders of the engine for improved combustion due to the additional hydrogen. | 04-21-2016 |
20160108801 | TURBOCHARGER CONTROL - A rotary device is coupled to the rotary mechanism of a turbocharger for selectively adding torque to and subtracting torque from the rotary turbocharger mechanism. A controller causes the rotary device to apply torque to the rotary turbocharger mechanism which causes the compressor to operate at a power level which creates a target pressure in the intake manifold different from existing pressure in the intake manifold. | 04-21-2016 |
20160108797 | THERMOSTAT - A thermostat for controlling the flow of a coolant into a radiator and a bypass circuit is provided. When the bypass circuit is to be closed, the thermostat displaces a shaft that is operably attached to a bypass plate. When in the closed position, the bypass plate is configured to engage a top wall of the bypass circuit so as to prevent the flow of coolant into the bypass circuit. To minimize the formation of a water pressure pulses generated by the closing of the bypass circuit, only a portion of the bypass plate initially contacts the top wall. Such limited contact allows for the restriction of the flow of coolant into the bypass circuit, and interrupts the even flow of coolant around the bypass plate. Such restriction and/or interruption allows for the gradual closing of the bypass circuit, which minimizes the associated water hammer effect. | 04-21-2016 |
20160103110 | ENGINE NOX MODEL - A method is provided for estimating the NO | 04-14-2016 |
20160084132 | GASEOUS FLUID METERING UNIT - A fluid metering unit has a housing providing a flow path from an inlet port through a first solenoid valve and a second solenoid valve to an outlet port. An electric circuit board for operating the solenoid valves is contained within the housing. Also contained within the housing and connected to the electric circuit board are a temperature sensor and a pressure sensor for sensing temperature and pressure in the flow path. An electric-operated temperature control element in thermally conductive contact with the housing controls temperature along at least a portion of the flow path. | 03-24-2016 |
20160083259 | REDUCTANT STORAGE - An assembly and method for storing a reductant, including ammonia, for use in the treatment of NO | 03-24-2016 |
20160076655 | THROTTLE VALVE HAVING A PRESSURE RELIEF VALVE - A pressure relief valve is associated with a throttle valve to shunt flow around a throttle valve element which is selectively positionable to throttle flow through the throttle valve. In a presently disclosed embodiment, a throttle valve comprises a valve body circumscribing a main flow passage extending along a central longitudinal axis between an inlet and an outlet. A valve plate is disposed within the main flow passage for turning about an axis of turning which perpendicularly intersects the central longitudinal axis for selectively throttling flow through the main flow passage. A pressure relief mechanism is mounted on the valve body. | 03-17-2016 |
20160076477 | Fuel Injector - A dual-mode fuel injector has an internal part containing a variable volume chamber space which fills with fuel at common rail pressure and a plunger which is operable to force fuel out of the variable volume chamber space and to be injected out of the nozzle through the injection orifices at amplified pressure greater than common rail pressure. The plunger and the internal part have respective surfaces which come into mutual abutment during filling of the variable volume chamber space with fuel at common rail pressure and which, when in mutual abutment, create a seal which seals fuel in the variable volume chamber space against escape from the variable volume chamber space past the seal. | 03-17-2016 |
20160076424 | COOLANT HEATING METHOD FOR RELEASING REDUCTANT - A system and method for heating main unit containing host salt having ammonia that is used as reductant in an engine exhaust gas after-treatment system. Engine coolant is delivered from internal combustion engine to auxiliary heating device. When necessary, the auxiliary heating device heats the engine coolant to temperatures that will aid in releasing ammonia from the host salt. The auxiliary heating device may employ an electric heating element, a combustion element, or be an exhaust gas heat exchanger, among other heating methods. The heated engine coolant is delivered to a coolant heating manifold, where heat from the heated coolant is transferred to the main unit. The transferred heat may aid in elevating the temperature in/of the main unit to facilitate the release of stored ammonia from the host salt as a gaseous reductant. The gaseous ammonia may then flow from the main unit. | 03-17-2016 |
20160076422 | NH3 Flow Measurement - A flow manifold system for injecting a first gas into a second gas, such as, for example, a system for injecting ammonia gas into the exhaust gas of an internal combustion engine. The first gas may be supplied to the system by one or more cartridges. The system may also include a control valve that is configured to control the delivery of the first gas to the least one critical flow orifice. The critical flow orifice is configured to allow for a relatively constant volumetric flow of the first gas through the critical flow orifice when the first gas attains a critical flow. Such critical flow may allow for an accurate estimation of the flow of the first gas through the critical orifice, and subsequently to the second gas, without the use of a flow sensor. | 03-17-2016 |
20160032844 | IC ENGINE CYLINDER AND PISTON - An internal combustion engine has at least one engine cylinder which is closed at an end by a cylinder head and within which a piston reciprocates. The cylinder head has a plunger receptacle and the piston has a plunger which, when the piston is reciprocating within the engine cylinder over an engine cycle's range between BDC and an intermediate position spaced from both TDC and BDC, fully opens the plunger receptacle to the interior of the engine cylinder, and which, when the piston is reciprocating over an engine cycle's range between the intermediate position and TDC position, enters the plunger receptacle to compress an air-fuel mixture at higher compression ratio in the plunger receptacle where it is ignited and subsequently used to ignite the rest of the mixture during piston downstroke. | 02-04-2016 |
20150337720 | CONTROL METHOD FOR VARIABLE GEOMETRY EXHAUST TURBINE - A method of setting actuator position of a variable geometry turbine linked to drive a compressor for a compression ignition engine using exhaust gas recirculation. The method includes detecting an engine transient event; determining current mass air flow through the compressor and exhaust temperature; resetting variable geometry turbine position to maximize mass air flow through the compressor; adding the maximum allowable quantity of fuel; determining exhaust temperature increase; adjusting exhaust pressure to allow an increase in mass air flow and exhaust temperature; and returning to the resetting step until a limit is reached. | 11-26-2015 |
20150300573 | POWER MODULATION FOR AMMONIA DELIVERY SYSTEM - A system for storage and dosing of ammonia includes solid ammonia storage material capable of binding and releasing ammonia reversibly by adsorption/absorption. The system includes a start-up storage unit and a main storage unit, both of which hold ammonia storage material. A start-up heating device is arranged to heat the start-up storage unit to generate gaseous ammonia by thermal desorption from the solid storage material. A main heating device arranged to heat the main storage unit to generate gaseous ammonia by thermal desorption from the solid storage material. A controller modulates operation of the heating devices such that the main and start-up heating devices are not simultaneously activated. | 10-22-2015 |
20150265970 | AMMONIA ABATEMENT SYSTEM FOR EXHAUST SYSTEMS - An ammonia abatement system and method for an exhaust system that includes a threeway catalytic converter (TWC) and a diesel particulate filter (DPF). Exhaust gas entering the TWC above the stoichiometric point (>1) may result in the formation of elevated levels of ammonia in the exhaust gas. To prevent the increased quantities of ammonia from skipping through the DPF, the DPF includes a catalyst to oxidize some of the ammonia and an acidic material to adsorb and store at least a portion of the excess ammonia. The acidic material may also release at least some of the adsorbed ammonia when a lean exhaust gas is present in the DPF. Additionally, an additive, such as copper or iron, may be added to the acidic material that may convert some of the NOx in the lean exhaust gas into nitrogen gas (or nitrous oxide) and water. | 09-24-2015 |
20150204267 | MODULAR COOLANT CORE-CYLINDER HEAD - A modular system for constructing a coolant core/cylinder head structure, is described. The system comprises a modular coolant core having an inlet and an outlet, a plurality of passageways within an interior space of the coolant core, the passageways fluidly connecting, which create a specific coolant flow pattern between the inlet and the outlet, wherein the coolant core has a single pattern geometry for assembling into the cylinder head core box. Use of the individual modular coolant cores permits construction of customized cylinder heads, which use the same tooling across multiple engine platforms, while providing more uniform coolant velocity and heat rejection from cylinder to cylinder and improved structure with more uniform clamping load between head bolts around the combustion chamber. | 07-23-2015 |
20150194686 | CATALYTIC HYDROGEN COMBUSTOR - A catalytic hydrogen combustor is disclosed that is adapted to combust substantially all the hydrogen in the fuel cell exhaust gas during both steady state operation and for short duration higher hydrogen concentration pulses. Hydrogen combustion is catalyzed in two zones, a first zone in which a lower level of catalyst activity is used to catalyze combustion of a higher concentration hydrogen pulse as it moves through the zone and a second zone in which a higher level of catalyst activity is used to catalyze combustion of a lower concentration of hydrogen that is characteristic of steady state fuel cell operation. | 07-09-2015 |
20150192058 | SELECTIVE INTERNAL DISTRIBUTION OF ENGINE MOTOR OIL - Engine motor oil drawn from an oil sump by an oil pump is forced to flow through a primary flow path to moving engine parts at pressures spanning a first pressure range and a second pressure range which is greater than the first pressure range. When pressure is within the first pressure range, some engine motor oil flow may be diverted to a secondary flow path having piston cooling jets which spray engine motor oil toward undercrown surfaces of engine pistons. When pressure is within the second pressure range, some engine motor oil flow is diverted to the piston cooling jets and also to a tertiary flow path which may be a return to the oil sump. | 07-09-2015 |
20150176538 | MODULATING BYPASS VALVE - A modulating bypass valve includes a valve housing defining a modulating fluid passageway and a bypassing fluid passageway through the valve housing. The valve also includes a throttle plate assembly that is inserted through the valve housing and has a rotating shaft on an axis that is generally perpendicular to the modulating fluid passageway and the bypassing fluid passageway. A modulating throttle plate is attached to the shaft and located within the modulating fluid passageway. A bypassing throttle plate is attached to the shaft and located within the bypassing fluid passageway. An actuator rotates the shaft. | 06-25-2015 |
20150159532 | WEAR PLATE BETWEEN CANISTER AND ELECTRIC HEATING ELEMENTS - A heating device and method for use in heating a canister containing a reductant, such as ammonia for use in an after-treatment device in an exhaust system, is disclosed. The heating device or jacket includes two sections forming an interior chamber for receipt of the canister. The sections include multiple layers including an inner surface layer, which provides both uniform heating of the canisters positioned therein, and a wear plate for engaging the canister within the heating unit. | 06-11-2015 |
20150136369 | EGR COOLER HEADER CASTING - A heat exchanger having a modified header design for absorbing high thermal loads, is described. The heat exchanger includes housing, core including a plurality of tubes providing flow passages within the housing and header plate positioned at an end of the housing and connected to the core. The header plate and flow passages join forming a thermal deflecting junction. In addition, a header for use with an exhaust gas heat exchanger, is disclosed. The header includes a header plate having a planer base wall and a flange extending from the base wall for receiving an end of at least one exhaust gas tube, a heat deflecting junction where the header plate meets the end of the tube. The header also includes a joint formed from the flange connecting to the tube, and positioned a suitable distance from the heat deflecting junction. | 05-21-2015 |
20150136077 | CONTROL STRATEGY FOR ENGINE-OPERATED COMPRESSOR - An engine controller causes a propulsion engine of a motor vehicle to be fueled in a fueling mode of operation and not to be fueled in a non-fueling mode of operation. A controlled device, such as a clutch or regulator, controls operation of a pneumatic compressor which forces compressed air into a storage tank. The controlled device is controlled according to a strategy which distinguishes between the fueling mode and the non-fueling mode for improving overall vehicle fuel economy. | 05-21-2015 |
20150129479 | ROTATIONAL FILTER ASSEMBLY WITH ORIENTATION STRUCTURE - A filter element for attachment to a filter cap includes a generally cylindrical filter media defining an axial centerline. The filter element also includes an upper plate attached to the filter media and rotationally attacked to the filter cap such that the upper plate and the filter media are rotational about the centerline with respect to the filter cap. The filter element further includes a bottom plate attached to the filter media opposite from the rotational attachment of the upper plate to the filter cap, and an orientation structure extending from the bottom plate radially from the centerline. | 05-14-2015 |
20150121866 | RANKINE CYCLE MID-TEMPERATURE RECUPERATION - A system and method for recuperation is provided including a boiler wherein air and exhaust gas recirculation pass through the boiler and are cooled by thermal transfer with a coolant. The system includes an expander receiving coolant from the boiler, a recuperator receiving coolant from the expander, a condenser receiving coolant from the recuperator; a pump pumping coolant from the condenser to a low temperature portion of the boiler, and a valve, which allows coolant to pass directly from the boiler to the recuperator. | 05-07-2015 |
20150114486 | AMMONIA FLOW MODULATOR TO PREVENT MOISTURE BUILD-UP - An ammonia flow modulator having a housing, a fluid passage, a first valve, preferably having a precision orifice, positioned within the passage, and an orientation which prevents fluid from pooling in the passage is disclosed and claimed. As an added feature, the device may include a heat source positioned within the housing proximate at least one of a fluid inlet, a fluid outlet, and the fluid passage. The heat source may be provided by an electric heating element, an exhaust gas heat exchanger, or any other suitable source. As econd inlet and a second passage fluidly connecting the second inlet to the outlet by fluidly linking the second passage to the first passage and including a check valve to prevent backflow. A controller coupled to the first valve is used to control ammonia flow. | 04-30-2015 |
20150114373 | CARBON SCRAPING RING WITH ABRADABLE COATING - A device and method for preventing and removing carbon deposit build-up on a piston/cylinder assembly of an engine, including a diesel engine, is disclosed. The device includes a cylinder having an inner sleeve for receiving a piston, a carbon scraping ring positioned on the cylinder sleeve, the carbon scraping ring including an inner surface, and an abradable coating applied to the inner surface of the carbon scraping ring providing a wearable surface between the piston and the cylinder sleeve. The abradable coating has a wearable surface, which conforms to the shape created by the movement of the piston and the cylinder sleeve and carbon scraping ring, creating a substantially zero clearance fit between the piston and the carbon scraping ring. The clearance may reduce oil consumption and improve sealing of the cylinder and piston, thereby reducing blow-by. | 04-30-2015 |
20150112572 | CENTRALIZED ACTUATOR CONTROL MODULE - An apparatus for controlling a plurality of actuators that assists in controlling the operation of a motorized vehicle. The apparatus includes a centralized actuator control module that is positioned remotely from an engine control unit. The centralized actuator control module includes a processor that is configured to control the operation of the actuators. The apparatus may include a first communication cable that is configured to deliver information between the centralized actuator control module and the engine control unit. An actuator communication cable may be configured to deliver power from the centralized actuator control module to one or more of the plurality of actuators. The apparatus may include a second communication cable configured to deliver sensed data to the centralized actuator control module that the centralized actuator control module uses to determine whether to operate one or more of the actuators. | 04-23-2015 |
20150108384 | VARIABLE EXHAUST MIXING DEVICE - A system and method for variable exhaust mixing is provided. A variable exhaust mixing device including a butterfly valve is positioned in an exhaust stream and the butterfly valve is opened more to decrease mixing and closed more to increase mixing. The increased mixing provided by the variable exhaust mixing device allows the injection of dosed fuel into the exhaust stream at a lower exhaust flow rate. | 04-23-2015 |
20150107553 | ENGINE BRAKING - A system and method for controlling the quantity of compressed air that may enter into an engine cylinder during the intake stroke of a piston during an engine braking event. A control throttle may be positioned to restrict the quantity of compressed air that may enter into the cylinder during the intake stroke. The control throttle may also be positioned downstream of the engine and configured to adjustably restrict the quantity of exhaust gas that may be delivered to a turbine. By restricting the exhaust gas delivered to the turbine, the power generated by the turbine that is used by the compressor to compress intake air may also be reduced. Moreover, by controlling the power available to the compressor, the quantity of compressed intake air may be controlled, which allows for control of the quantity of compressed air that enters into the cylinder during the compression stroke. | 04-23-2015 |
20150101675 | POSITIVE CONNECTION INDICATOR (VISUAL OR SOUND) - A reductant storage and dosing system which uses at least one canister containing a supply of reductant to supply, via a delivery line, an exhaust gas after-treatment system having an injector is disclosed. A controller may be used to meter the flow of the reductant through the delivery line to the injector, while a status indicator indicates a status of the connection—i.e., connected or disconnected. In an embodiment, the status indicator provides a visual signal or indication, such as an LED or series of LEDs, an audible signal, such as a beep, click or buzz, or both. Iternatively, the status indicator may be an analog or digital gauge. | 04-16-2015 |
20150097049 | Decoupled Needle Control Assembly - An assembly for a fuel injector that includes a piston that is decoupled from the needle of a needle valve. The piston is slidingly positioned in a disk bore. The portion of needle in the disk bore is smaller than the disk bore so as to prevent the disk bore from interfering with movement of the needle between seated and unseated positions. During periods of operation, the upper surface of the piston is engaged by a control volume of fuel that pushes the needle toward a seated position, while the needle pushes in an opposing direction against a lower surface of the piston. The surface area of the piston acted on by the control volume is larger than the upper portion of the needle that is typically acted upon by the control volume, thereby providing a larger force on the piston that keeps the needle in a seated. | 04-09-2015 |
20150096519 | HUMIDITY BASED MAF COMPENSATION - According to at least one aspect of the present technology, a method is provided for compensating the output of a mass air flow sensor in response to humidity level. The method includes determining an actual mass air flow value (MAF_ACT) using the mass air flow sensor. The method also includes determining an actual humidity value (HUM_ACT) of the air flow that is measured by the mass air flow sensor. The method further includes determining if the actual humidity value (HUM_ACT) is outside of a preselected operating range. If the actual humidity value (HUM_ACT) is outside of the preselected operating range, the method determines a humidity-compensated mass air flow value (MAF_HUM) as a function of the actual mass air flow value (MAF_ACT) and the actual humidity value (HUM_ACT). | 04-09-2015 |
20150096508 | ENGINE LIQUID COOLING SYSTEM - A method of limiting pressure in a liquid cooling system of an internal combustion engine when the engine overspeeds, such as when an engine brake is applied. | 04-09-2015 |
20150096361 | INJECTOR CAVITATION DETECTION TEST - A method and apparatus for determining a characteristic of an injector are set forth. In one example, a compressed gas is applied to the inlet chamber of the injector while the spoolvalve is closed until the pressure of the compressed gas in the inlet chamber reaches a predetermined pressure. A change in pressure of the compressed gas in the inlet chamber is measured over time while the spool valve is closed. The pressure change measurement corresponds to the characteristic of the injector that is to be determined. | 04-09-2015 |
20150096350 | NH3 STORAGE SETPOINT TEMPERATURE ALGORITHM - A method for predicting an exhaust gas temperature. The method includes detecting a plurality of exhaust gas temperatures and applying a weight value to the detected plurality of exhaust gas temperatures to determine a plurality of weighted temperature values. The weight value applied to at least one detected exhaust gas temperature may be different than the weight value applied to at least one other detected exhaust gas temperature. The method also includes determining an estimated temperature corresponding to the plurality of weighted temperature values and the applied weight value. The estimated temperature may be used to determine a set-point for the storage or absorption of a reductant by a catalyst. Moreover, the estimated temperature may allow for an adjustment to the reductant being stored on the catalyst if the storage capacity of the catalyst may be changing based on a predicted change in exhaust gas temperature. | 04-09-2015 |
20150086427 | LINE BREAK INDICATOR (WIRE IN AMMONIA LINES) - Reductant delivery system having at least one canister containing reductant coupled, via delivery line, to after-treatment system having ammonia injector, is disclosed. Reductant includes ammonia adsorbing/desorbing material. Delivery line is connected at one end to ammonia injector and at another end detachably coupled by coupler to the canister. Controller may be used for metering flow of ammonia through delivery line to injector. Line-break detector detects disconnection within the delivery line to prevent loss of ammonia. Line-break indicator coupled to line-break detector is used, wherein the indicator activates upon the detector detecting a disconnection in the delivery line. Related methods for detecting and indicating a line break are disclosed. | 03-26-2015 |
20150083096 | TURBOCHARGER TURBINE BOOSTER - A method of operating the turbine booster to improve engine operating response and to increase the effectiveness of emission control devices is disclosed. A turbocharger turbine booster for a turbo charged internal combustion engine provides pressurized air to the turbocharger turbine and increases the oxygen in engine exhaust without increasing the engine combustion oxygen content. | 03-26-2015 |
20150083077 | SWIRL-INDUCING INTAKE VALVE ARRANGEMENT - First intake valve and second intake valve for an engine cylinder bore within which a piston reciprocates are arranged side-by-side in a cylinder head for motion in unison along respective intake valve axes. First intake valve axis is nonparallel to the cylinder bore axis. A first intake valve seat for the first intake valve is disposed in a plane which is non-parallel to a plane which is perpendicular to the cylinder bore axis. First intake valve seat has a first semi-circumference toward a second semi-circumference of a second valve seat for second intake valve. At least a portion of first semi-circumference is closer, as measured along a direction parallel to the cylinder bore axis, to a plane passing through the piston perpendicular to the cylinder bore axis than is the second semi-circumference as measured along a direction parallel to the cylinder bore axis. | 03-26-2015 |
20150078975 | NATURAL GAS ENGINE AFTERTREATMENT SYSTEM - Systems and methods for reducing methane in an aftertreatment system of a vehicle are described. An oxidation catalyst is disposed in an exhaust path between an engine block and a turbocharger. The oxidation catalyst stores methane in the exhaust gas from the engine block during low temperatures and oxidizes the stored methane during high temperatures. The temperatures at the oxidation catalyst are controlled, in part, by operating engine cycles and/or a back pressure valve that can adjust pressure in the exhaust path and/or increase engine load. | 03-19-2015 |
20150075505 | DERATE STRATEGY FOR EGR COOLER PROTECTION - Methods and systems for controlling the conditions of a coolant for the cooler of an exhaust gas recirculation system are disclosed. The system determines coolant pressure at predetermined location of the cooler. The system also senses the actual temperature of the coolant at a predetermined location of the cooler. The system also determines a coolant boiling temperature at the determined coolant pressure. Using the determined coolant pressure, the system may control engine operation so as to prevent coolant from reaching boiling in the cooler. An engine derate power factor may be determined to control the amount of fuel delivered to the engine, such as reducing the amount of fuel delivered through the fuel injectors. The amount of delivered fuel may be derated until an adjusted coolant temperature falls a predetermined amount below the coolant boiling temperature. | 03-19-2015 |
20150075481 | OIL PROPERTY MANAGEMENT SYSTEM AND METHOD FOR INTERNAL COMBUSTION ENGINE FUEL ECONOMY AND MINIMUM WEAR RATES - A system and method for managing the characteristics of engine oil in a lubrication system for an internal combustion engine is disclosed. Generally speaking, the method includes the steps of determining a target viscosity for the engine oil based on engine speed and engine load, determining a working viscosity which may be directly measured or determined based on engine oil temperature and engine oil type, comparing the target viscosity to the working viscosity, deriving a target engine oil temperature, and directing engine oil to one of an oil cooler, an oil heater, or neither when and until the target engine oil temperature is achieved. The oil viscosity management system includes an engine lubrication system having a volume of engine oil, a cooler coupled to the lubrication system, a heating mechanism also coupled to the lubrication system, a valving system for directing flow of the oil and coupled to each of the lubrication system, the cooler and the heating mechanism, a signal generator for generating a signal based on operational parameters of the engine, and an estimator for controlling the valving system in response to the signal. | 03-19-2015 |
20150073639 | HYBRID DRIVE TRAIN CONTROL METHOD - A control system for a hybrid vehicle utilizes telematics and on board sources to obtain information relating to operating conditions. The data is used to modify hybrid-electric drive train operation to extend the life of components of the drive train. In response to requests for propulsion, data relating to expected conditions of operation including one or more of the following, weather, traffic and road conditions, determines what proportion of the request to meet from the internal combustion engine and what proportion to meet from the electrical motor. The proportion of the request for propulsion allocated to the engine is increased where expected conditions of operation impose excessive stress on electrical components of the drive train. | 03-12-2015 |
20150071824 | MIXING PLATE PROVIDING REDUCTANT DISTRIBUTION - A reductant mixing system having injector and mixing plate positioned within mixing canister is disclosed. Injector discharges reductant directly into vehicle exhaust gases. Mixing plate effects turbulence to mix gases for NO reduction. Mixing plate includes plurality of arms each having surface area and extending from center of plate, barrier region defined by collective surface areas of arms and substantially centered for diverting fluid flow outward, and first and second cut-outs, which allow the gases diverted by barrier region to pass mixing plate into adjacent canister of exhaust treatment system. Each of the first cutouts is defined by outer edge between adjacent arms, and second tier of cut-outs defined by inner edge proximate end of each arm. | 03-12-2015 |
20150068490 | MULTI-FUEL ENGINE WITH VARIABLE VALVE TIMING - In a compression ignition multi-fuel engine employing both port/intake manifold injection of fuel and in-cylinder injection of fuel, the recirculation of exhaust gas to the engine induction system is used to control the temperature and to set the reactivity of an air/fuel charge introduced to the engine for combustion. Fuel directly injected during compression of the charge controls ignition. A variable valve actuator for opening and closing an intake valve extends control over charge pressure and temperature to extend suppression of auto-ignition of the charge. Fuel injection strategy and variable valve actuation are subject to a control strategy to extend the benefits of premixed combustion. | 03-12-2015 |
20150052879 | MIXING PLATE AS STABILIZER FOR AMMONIA GAS INJECTOR - A system for mixing ammonia (reductant) with engine exhaust includes an exhaust flow created by a vehicle engine, an ammonia feed line passing into the exhaust flow, an injector connected to the feed line and positioned within the exhaust flow, the injector having at least one port for discharging ammonia into the exhaust flow, and a mixing plate positioned within the exhaust flow downstream of the ammonia injector and stabilizing at least one of either the feed line and the injector. An aspect of the invention is to stabilize the injector by attaching the mixing plate to the feed line to provide such stability. Alternatively or additionally, the mixing plate is attached to the injector to stabilize. The feed line may even pass through the mixing plate. | 02-26-2015 |
20150047992 | AMMONIA DOSING CARTRIDGE AND METHOD - A device and method for storage and delivery of ammonia for use on a vehicle, is disclosed. The device includes a sealable container, a predetermined amount of a solid ammonia-containing material, wherein the container is filled with the ammonia-containing material prior to sealing, and a canister for receiving the filled, sealed containers. The method includes loading the canister by stacking a plurality of the filled, sealed containers one on top of the other within the canister, and subsequently compressing and crushing the containers to release the ammonia gas for use in the reduction of NO | 02-19-2015 |
20150041566 | APPARATUS FOR CONTROLLING NEEDLE VALVE LEAKAGE - A needle body for a fuel injector that controls or prevents high pressure fuel leaks by dynamically controlling the size of the clearance between a longitudinal bore in a nozzle body and the needle that travels along the bore. The longitudinal bore passes through a body portion and a clearance control protrusion of the needle body. The clearance control protrusion extends from the body portion into a nozzle chamber of a nozzle section of the fuel injector. The clearance control protrusion is configured to prevent expansion of the clearance that is typically associated with hydraulic forces caused by pressurized fuel in the clearance. The clearance control protrusion is configured so that as fuel pressure in the nozzle chamber increases, hydraulic forces act against an outer surface of the clearance control protrusion to prevent expansion of the portion of the clearance positioned within the clearance control protrusion. | 02-12-2015 |
20150040867 | FUEL INJECTOR NEEDLE SLEEVE - A fuel injector for a fuel injection system includes a nozzle body defining a nozzle body chamber, a needle movably received within the nozzle body chamber for movement between a seated position and a raised position, and a needle sleeve at least partially surrounding the needle and at least partially defining a control volume. The needle moves from the seated position to the raised position in response to a pressure differential between the control volume and the nozzle body chamber. When the needle is in the seated position clearance exists between the needle sleeve and the needle thereby permitting fuel flow between the control volume and the nozzle body chamber, and when the needle is in the raised position, the needle sleeve deforms to reduce the clearance and restrict fuel flow between the control volume and the nozzle body chamber. | 02-12-2015 |
20150020778 | FUEL INJECTOR NOZZLE - A fuel injector includes a needle moveable along a central axis to initiate and terminate an injection event, and a nozzle body that receives the needle. The nozzle body includes a needle seat, a nozzle sac, and a passageway between the needle seat and the nozzle sac. The passageway defines a passageway inner surface. The nozzle sac has a curved, non-spherical profile and defines a sac inner surface that extends away from a distal end of the passageway inner surface. | 01-22-2015 |
20150020517 | HIGH-PRESSURE HOSE VIBRATION SUPPRESSOR - A vibration suppressor is disclosed that is configured for use in a system having a hose under pulsating hydraulic pressure. The pulsating hydraulic pressure causes vibration of the hose at the pulsation frequency. The vibration suppressor is applied to the hose and is constructed to have a resonant frequency slightly below the pulsation frequency where the pulsating hydraulic pressure is at a peak level, due to, but not limited to, the existence of a resonance in the hydraulic system. | 01-22-2015 |
20150020508 | TRAPPED SOOT MEASUREMENT - A quantity of soot trapped in a particulate filter in an engine exhaust system is calculated for use in a regeneration control strategy by drawing electric current from an electric power supply through a circuit which comprises in series an internal portion of the particulate filter and an electric impedance external to the filter. At least one electric measurement device connected to the circuit provides circuit-related data sufficient to enable a processor to calculate temperature-adjusted electric resistance of soot trapped in the internal portion of the particulate filter by calculating non-temperature-adjusted electric resistance of soot trapped in the internal portion of the particulate filter and temperature-adjusting a calculation of non-temperature-adjusted electric resistance of soot trapped in the internal portion of the particulate filter based on temperature data from a source of temperature data indicative of an internal temperature of the particulate filter. | 01-22-2015 |
20150014427 | CONTROL VALVE - A control valve of a fuel injector includes a generally cylindrical control valve housing having an axis, and a control valve body disposed within the control valve housing. An inlet throttle passage is in fluid communication with the control valve housing and is oriented to be generally tangential to the control valve housing. | 01-15-2015 |
20150010392 | Modular Water Pump - A water pump apparatus is provided having a plurality of modular components, which allows for construction of various configurations of the water pump apparatus depending on specific vehicle requirements. The water pump apparatus modular components include a pump housing with a fluid chamber formed therein, a bearing housing for attachment to the pump housing, and a thermostat housing for connecting to the bearing housing and the pump housing. A method for forming modular components for assembling a water pump apparatus for use in an internal combustion engine is also provided. | 01-08-2015 |
20140373530 | MULTI-FUEL ENGINE - Engine includes an air induction sub-system for delivery of air to each cylinder. A lowpressure fuel injector injects a low reactivity fuel into the sub-system. An exhaust gas recirculation line connects exhaust gas purged from the cylinders back to the sub-system. An exhaust gas cooler cools recirculated gas in the exhaust gas recirculation line. The quantity of exhaust gas recirculated is controlled and the recirculated gas provides dilution and temperature control of the charge to suppress auto-ignition of the charge in the cylinder. A high pressure fuel injector injects a high reactivity fuel in the compression stroke for auto ignition and to initiate combustion of the charge. A variable valve actuator controls compression ratio and cylinder peak temperature. Boost is provided in air induction sub-system to assure combustion to stoichiometric levels. | 12-25-2014 |
20140369898 | CROSS STYLE (4 PORT) AMMONIA GAS INJECTOR - An ammonia (reductant) injector for delivering a ammonia into an engine exhaust stream is disclosed. Generally speaking, the injector has a body with an inlet fluidly coupled to a plurality of channels within the body, a plurality of discharge ports, each port being fluidly coupled to at least one channel, and an ammonia feed line connected to the inlet of the body. The plurality of discharge ports are preferably spaced one from another such as to optimize the dispersion of ammonia from the ports throughout a cross-sectional portion of an engine exhaust stream. | 12-18-2014 |
20140369853 | CONTROL FOR ENGINE DRIVEN COMPRESSOR - A controller for a vehicle pneumatic system loads a compressor responsive to engine power absorption by the engine and air storage facility air pressure readings up to a pressure limit. The controller is responds to power demand on the engine in excess of an engine speed related global maximum and air pressure readings down to a global minimum for unloading the compressor. The controller provides for loading and unloading the compressor to maintain storage facility pressure within an operating maximum and an operating minimum which lie between the global maximum and global minimum pressures. The controller responds to air pressure readings reaching or falling below the global minimum for loading the compressor and to air pressure readings reaching or exceeding the global maximum for unloading the compressor. | 12-18-2014 |
20140366528 | COORDINATING VARIABLE VALVE ACTUATION AND TURBOCHARGER OPERATION IN AN INTERNAL COMBUSTION ENGINE - An engine control system coordinates control of a pressure regulating mechanism associated with a turbocharger turbine and control of a variable valve actuating (VVA) mechanism for expanding the range of possible exhaust gas recirculation rates over a large portion of an engine operating map to provide EGR rates which are greater than typical present-day levels while mitigating engine pumping losses by causing the turbocharger to operate with better efficiency in some regions of the map where it otherwise would not. Turbocharger efficiency is improved by controlling the VVA mechanism to set the timing of operation of its respective cylinder valves in accordance with a predetermined correlation of operating efficiencies of a compressor to timing of operation of respective engine cylinder valves, causing the compressor to operate at points of better efficiency than it otherwise would without use of VVA. | 12-18-2014 |
20140360169 | POST THERMAL CONTROL DEVICE FOR USE WITH A NOx SLIP CATALYST - A system and method for treating diesel exhaust in a diesel exhaust system, and specifically for improved NO | 12-11-2014 |
20140358405 | INTERNAL COMBUSTION ENGINE OPERATING ON DIFFERENT REACTIVITY FUELS - A premixed charge of air and a low reactivity fuel is created in a combustion chamber space by the time at which a piston comes substantially to top dead center at which time a high reactivity fuel is directly injected into a central zone of the combustion chamber space which is bounded partially by a central bowl cavity in the piston head which is itself surrounded by an upright intermediate wall. The high reactivity fuel combusts by conventional diesel combustion and creates a flame front which propagates into an outer zone of the combustion chamber space which is bounded partially by the upright intermediate wall and an outer bowl cavity in the piston head to initiate combustion of the premixed air-fuel charge in the outer zone of the combustion chamber space. | 12-04-2014 |
20140352938 | EGR COOLER HEADER DESIGN - A heat exchanger having a modified header design for absorbing high thermal loads, is described. The heat exchanger includes a housing having an interior space, a core within the interior space of the housing, the core comprising a plurality of flow passages, and a header positioned at an end of the housing and in communication with the core, wherein the header includes a thermal absorbing formation. The thermal absorbing formation may take the form of a continuous raised rib around an inner circumference of the header. The raised rib absorbs excess heat and reduces thermal strain on the heat exchanger. | 12-04-2014 |
20140338169 | Diesel fuel injector circlip and ferrule ring removing tool - A removal tool includes a staking unit configured to deform a circlip located at a bore of an apparatus when the removal tool is pushed into the bore, and a spring fork unit configured to push a ferrule ring located at the bore when the removal tool is pushed into the bore. | 11-20-2014 |
20140336903 | MASS AIRFLOW SENSOR CALIBRATION EVALUATION - An engine has a controller for causing an EGR system to disallow EGR while concurrently executing a strategy for evaluating calibration of a mass airflow sensor in an intake system by operating the engine at each of different combinations of engine speed and engine load, and for each combination of engine speed and engine load, recording a corresponding output signal of the sensor and also calculating mass flow passing through an intake manifold as a function of intake manifold pressure, intake manifold temperature, speed of the engine, and volumetric efficiency of the engine. The output signal of the MAF sensor and the calculated mass flow passing through the intake manifold at least one combination of engine speed and engine load are used to evaluate the calibration the MAF sensor. | 11-13-2014 |
20140336886 | SYSTEM AND METHOD FOR CONTROLLING A TRANSMISSION - A system for operating a vehicle equipped with an automatic transmission and a vehicle road speed limiter (RSL) which is programmable to limit the maximum vehicle speed for a given transmission gear includes at least on controller. The at least one controller is operable, when the speed limiter (RSL) is active, to determine if the vehicle is operating in a shuttle shifting range based on the current status of preselected operating parameters. When the vehicle is operating in a shuttle shifting range, the at least one controller is operable to control transmission operation to prevent shifting under conditions where shifting would otherwise normally occur. | 11-13-2014 |
20140331497 | DISASSEMBLY STATION - An apparatus comprising a holding unit configured to hold a fuel injector for disassembly, a removal unit and an actuating unit. The removal unit comprises a first removal tool for removing a circlip and ferrule ring from the fuel injector, a second removal tool for removing a cone nut from the fuel injector, and a third removal tool for removing a screw from the fuel injector. The actuating unit comprises a first actuator configured to operate the holding unit, a second actuator configured to move the removal unit, and a third actuator configured to operate the third removal tool. | 11-13-2014 |
20140325964 | AMMONIA GAS PRESSURE BOOSTER - A system and method for delivering a reductant into an engine exhaust stream for use in the reduction of NO | 11-06-2014 |
20140318216 | NOX MODEL - Methods are provided for estimating the NO | 10-30-2014 |
20140299108 | IC ENGINE CYLINDER AND PISTON - A cylinder head has a plunger receptacle and a piston has a plunger which, when the piston is reciprocating within an engine cylinder over an engine cycle range between BDC and an intermediate position spaced from both TDC and BDC, exposes the plunger receptacle to the interior of the engine cylinder, but which, when the piston is reciprocating over an engine cycle range between the intermediate position and TDC position, closes the plunger receptacle to the interior of the engine cylinder. A fuel/air charge is created within the engine cylinder, compressed to higher compression ratio in the plunger receptacle at TDC position where it is ignited and then used to ignite the lower compression ratio charge in the engine cylinder. | 10-09-2014 |
20140241963 | COLD START STARTUP UNIT FOR UREA-BASED SYSTEMS - An exhaust after-treatment system is described. Generally speaking, the system includes separate primary and secondary NOx reducing systems for delivering reductant to an exhaust stream, a sensor system for determining relevant operating conditions and an electronic control module for activating the reducing systems. Methods for reducing NOx in an exhaust stream are also described. Generally speaking, the methods include the steps of determining a need for NOx reduction in an exhaust stream, determining exhaust temperature, determining ambient temperature, and injecting at least one of a primary reductant and a secondary reductant into the exhaust stream based on the determined temperature. The system and method are particularly useful during cold start conditions, as well as lightly loaded application in conditions where the ambient temperature is below 45 F where the SCR catalyst may not fully function. | 08-28-2014 |
20140230412 | TRAPPED SOOT ESTIMATOR - A diesel engine ( | 08-21-2014 |
20140216398 | TURBOCHARGER OPERATION TO INCREASE BRAKE EFFECTIVENESS - In response to activation of a compression release brake when a motor vehicle having a turbocharged internal combustion engine is operating at some elevation above sea level and a turbocharger compressor is operating in a region of an operating map which is creating boost air in an engine intake manifold which would cause the compression release brake to decelerate the vehicle more slowly at that elevation than it would at sea level for the same operating conditions of the vehicle and engine other than altitude, the compression release brake decelerates the vehicle less slowly by operating a valve mechanism to reduce flow through a charge air cooler and increase flow through a charge air cooler by-pass. | 08-07-2014 |
20140208738 | SYSTEM AND METHOD FOR PROTECTING AN ENGINE FROM CONDENSATION AT INTAKE - An engine protection system and methods for preventing intake condensation are disclosed. In a system and various of the methods, an exhaust gas recirculation (EGR) valve is positioned within an EGR passage fluidly connecting an engine exhaust stream and an engine intake stream, while a waste heat recovery (WHR) system is used to recover heat from the EGR stream. An engine control unit (ECU) is coupled to various sensors and valves to divert working fluid from the WHR system from cooling the EGR exhaust flow below a level which favors production of condensation in the engine intake system. The ECU operates to divert working fluid flow when sensors indicate characteristics of either the exhaust flow or the intake stream which might lead to heavy condensation. A three-way valve is also used to divert the working fluid to a variable expansion valve fluidly coupled to the three-way valve in response to a signal from one of the sensors to prevent damage to the system turbine. | 07-31-2014 |
20140208720 | CATALYTIC BURNER SYSTEM FOR DPF REGENERATION - A system and method of effective regeneration of a diesel particulate filter used in the exhaust system of a diesel engine during low engine operating temperatures, is disclosed. Generally speaking, a catalytic burner system and method used in filter regeneration on a diesel engine comprises a burner diesel oxidation catalyst (BDOC) coupled to an exhaust flow of the diesel engine, a mixer fluidly coupled to the BDOC, a diesel oxidation catalyst (DOC) fluidly coupled to the mixer, and a diesel particulate filter (DPF) fluidly coupled to the DOC, wherein the BDOC directs the exhaust flow through the mixer, the DOC and the DPF during a regeneration cycle of the DPF under low engine temperature operating conditions. | 07-31-2014 |
20140202422 | CONTROLLING CYLINDER USAGE DURING REDUCED LOAD ON AN INTERNAL COMBUSTION PROPULSION ENGINE - While an engine is miming with all engine cylinders being fueled, a historical record of engine output torque and engine speed is compiled. When the historical record discloses a change in engine operation from a relatively greater output torque and engine speed to a relatively lesser output torque and speed, fueling of at least one engine cylinder ceases while engine output torque and engine speed remain substantially unchanged at the relatively lesser output torque and speed by continuing fueling of other engine cylinders and by causing at least one mechanism to control the timing of operation of cylinder intake and exhaust valves of the at least one engine cylinder to substantially minimize pumping loss attributable to the at least one engine cylinder. | 07-24-2014 |
20140202149 | Waste Heat Recovery System for Controlling EGR Outlet Temperature - An engine system and various methods for controlling the outlet temperature of an EGR stream before entering an engine intake system are disclosed. In a system and the various methods, an exhaust gas recirculation (EGR) valve is positioned within an EGR passage fluidly connecting an engine exhaust stream and an engine intake stream, while a waste heat recovery (WHR) system is used to recover heat from the EGR stream. An engine control unit (ECU) is coupled to various sensors and valves to divert working fluid in the WHR system from cooling the EGR exhaust flow below a level which favors production of condensation in the engine intake system. The ECU operates to divert working fluid flow away from the EGR boiler when sensors indicate characteristics of either the exhaust flow or the intake stream which might lead to heavy condensation. A three-way valve is also used to divert the working fluid to a variable expansion valve fluidly coupled to the three-way valve in response to a signal from one of the sensors to prevent damage to the system turbine. | 07-24-2014 |
20140196698 | VVA CONTROL OF NOx IN A LOW AP AREA OF AN ENGINE OPERATING MAP - When the difference by which pressure in an engine exhaust manifold exceeds pressure in an engine intake manifold becomes less than a selected difference while an intake valve operating mechanism is closing cylinder intake valves at a selected time in the engine cycle, while an EGR system is conveying the engine exhaust component of an air/exhaust mixture from an exhaust system to an intake system, and a certain quantity of NOx is present in engine exhaust entering the exhaust manifold, the quantity of NOx present in engine exhaust entering the exhaust manifold is reduced below that certain quantity by causing the intake valve operating mechanism to close the cylinder intake valves earlier in the engine cycle than the selected time. | 07-17-2014 |
20140086803 | NOX REDUCTION - A system for improving NO | 03-27-2014 |
20140083393 | METHODS FOR CONTROLLING ENGINE IDLE SPEED - The present technology provides one or more methods of operating an engine in a motor vehicle. In at least one embodiment, the existence of an engine idle condition is determined. The method may also include determining whether an operator is present in the vehicle. In some embodiments, the engine operates at a performance idle speed when an engine idle condition exists and an operator is present in the vehicle. In further embodiments, the engine operates at a fuel economy idle speed when an idle condition exists and no operator is present in the vehicle. In still further embodiments, the fuel economy idle speed will be lower than the performance idle speed. The present technology anticipates engine workload and controls engine idle speeds. Based on the anticipated workloads, the present technology can reduce engine stalling while also reducing emissions and increasing fuel economy. | 03-27-2014 |
20140083392 | METHODS FOR CONTROLLING ENGINE IDLE SPEED - The present technology provides one or more methods of operating an engine in a motor vehicle. In at least one embodiment, the existence of an engine idle condition is determined. The method may also include determining whether an operator is present in the vehicle. In some embodiments, the engine operates at a performance idle speed when an engine idle condition exists and an operator is present in the vehicle. In further embodiments, the engine operates at a fuel economy idle speed when an idle condition exists and no operator is present in the vehicle. In still further embodiments, the fuel economy idle speed will be lower than the performance idle speed. The present technology anticipates engine workload and controls engine idle speeds. Based on the anticipated workloads, the present technology can reduce engine stalling while also reducing emissions and increasing fuel economy. | 03-27-2014 |
20140069392 | STRATEGY FOR FUELING A DIESEL ENGINE - A compression ignition engine ( | 03-13-2014 |
20140060495 | METHOD OF COMPENSATING FOR INJECTOR AGING - A method of controlling a fuel injector is provided. Engine speed is monitored. Engine torque output is monitored. It is determined if the engine speed is within one of a plurality of predefined engine speed ranges. It is determined if the engine torque output is within one of a plurality of predefined engine torque output ranges. One of a plurality of injector coking factors is assigned based on the determined predefined engine speed range and the determined predefined engine torque output range. A total injector coking factor is calculated based upon total operating time within each of the plurality of injector coking factors. A duration of a fuel injection is increased based upon the calculated total injector coking factor. | 03-06-2014 |
20140053811 | SYSTEM AND METHOD OF CONTROLLING COMBUSTION IN AN ENGINE HAVING AN IN-CYLINDER PRESSURE SENSOR - A control system for an internal combustion engine comprises pressure sensing means, memory means, processing means, and fuel injection control means. Pressure sensing means generate in-cylinder pressure data used to calculate total heat generated during combustion cycle. Memory means store predetermined crank angle data, such as CA50 crank angle data, for variety of engine operating conditions. A CA50 crank angle is a crank angle position where fifty percent of total heat is generated. Memory means | 02-27-2014 |
20140021194 | MAIN CARTRIDGE HEATING JACKET - A heating jacket for use with an ammonia-containing storage cartridge for the controlled release of ammonia into an exhaust stream for the reduction of NO | 01-23-2014 |
20140000566 | INJECTOR NOZZLE COKING COMPENSATION STRATEGY | 01-02-2014 |
20140000561 | HYDRAULIC SEAL WITH A DYNAMIC CLEARANCE FOR A FUEL INJECTOR | 01-02-2014 |
20130327499 | EGR COOLER AND METHOD - A device and method for enhancing the flow of coolant through an EGR cooler, are described. The device includes a housing or tank having an interior space with a fluid inlet for receiving coolant and a fluid outlet for releasing coolant from the interior space. A series of angled baffles in a parallel arrangement are positioned within the interior of the housing from the fluid inlet to the fluid outlet. The baffles extend into a flow path of the coolant redirecting a portion of the flow path above and below the baffles as the coolant passes through the housing. A plurality of tubes or conduit are positioned adjacent the baffles, defining an exhaust gas flow pathway through the housing. | 12-12-2013 |
20130227934 | AFTERTREATMENT BURNER AIR SUPPLY SYSTEM - A system and method for efficient regeneration of a diesel particulate filter used in the exhaust system of a diesel engine, is disclosed. In various systems, a burner is incorporated into the exhaust stream, and prior to the diesel particulate filter. Because the burner requires precise amounts of fuel and air to operate properly, an air flow delivery device, such as a positive displacement pump or blower is incorporated into the system to channel boost air to the burner. Alternatively, a bypass line may be used in conjunction with a pressure regulator, wherein the bypass line diverts the boost air from the pump or blower, while the pressure regulator controls the final pressure to the burner. | 09-05-2013 |
20130218439 | CONTROLLING VARIABLE VALVE ACTUATION SYSTEM - A method of controlling a variable valve actuation system for an internal combustion engine having a plurality of cylinders, each of the plurality of cylinders having a variable valve actuator and in-cylinder pressure sensor is provided. Output of an in-cylinder pressure sensor is monitored at a predetermined crank angle Θp with an electronic control module. The output of the in-cylinder pressure sensor of the monitored one of the plurality of cylinders at the predetermined crank angle Θp is compared to a stored threshold value for in-cylinder pressure at the predetermined crank angle. A variable valve actuator is adjusted to adjust a crank angle Θc corresponding to when an intake valve of the monitored one of the plurality of cylinders closes when the output of the in-cylinder pressure sensor of the monitored one of the plurality of cylinders does not correspond to the stored threshold value. | 08-22-2013 |
20130216473 | CATALYTIC FUEL VAPORIZER AND FUEL REFORMER ASSEMBLY - In one embodiment, an assembly for use with a lean NOx catalyst (LNC) is described. An outer tube is coupled to the LNC. An inner tube is disposed completely inside the outer tube. The exhaust flow is split between the inner tube and the outer tube. The inner tube houses a catalytic fuel vaporizer and a catalytic fuel reformer that convert at least a portion of the injected hydrocarbons to hydrogen and carbon monoxide, and vaporized hydrocarbons for NOx reduction. | 08-22-2013 |
20130213328 | CONTROL VALVE FOR CONTROLLING COMPRESSION RATIO AND COMBUSTION RATE - A method of controlling the compression ratio in an engine ( | 08-22-2013 |
20130206083 | ENGINE WITH ELECTRONICALLY CONTROLLED PISTON COOLING JETS AND METHOD FOR CONTROLLING THE SAME - An engine oil system for an internal combustion engine comprises an electronic control module, an engine oil sump, an engine oil pump, an engine oil gallery, an engine oil pressure sensor, a solenoid control valve, and at least one oil receiving component. The engine oil pump is in fluid communication with the engine oil sump. The engine oil gallery is in fluid communication with at least one engine bearing and a turbocharger. The engine oil pressure sensor and at least one oil receiving component are in fluid communication with the oil gallery. The oil pressure sensor generates an output signal that is transmitted to the electronic control module. The solenoid control valve is in fluid communication with the engine oil gallery and electronic communication with the electronic control module. The solenoid control valve is moveable between at least an open position and a closed position. | 08-15-2013 |
20130205757 | RECHARGE DEVICE AND METHOD FOR NH3 CARTRIDGE - A device and method relating to the storage and delivery of ammonia for use in an after-treatment device for NO | 08-15-2013 |
20130199506 | DUAL FUNCTION BREATHER BYPASS SYSTEM - A breather system functions, under high load conditions, as an open breather system, and functions as a closed breather system under low load conditions. The breather system includes a first flow path between the engine crankcase and an air intake for the engine, and a three-way valve mechanism located within the flow path and responsive to air intake depression pressure to close the pathway leading to the air intake and allow for a second flow path between the engine chamber and atmosphere to function as an open breather system. When the air intake depression pressure in the air intake is such that the valve leading to the air intake is open, the system operates as a closed breather system. | 08-08-2013 |
20130199371 | REDUCTION OF FOULING IN AFTER TREATMENT COMPONENTS - A device and method for influencing exhaust gas flow downstream of a turbocharger turbine and upstream of after treatment components prevents doser tip fouling by using a passive exhaust flow control surface comprising ridges protruding into the exhaust gas flow conduit. The ridges are disposed parallel to each other, and perpendicular to the direction of gas flow. In one embodiment, a funnel is disposed in the conduit, downstream of the ridges, to further direct the exhaust gas flow more precisely towards a HC doser tip. | 08-08-2013 |
20130199176 | EXHAUST GAS THROTTLE VALVE - A method for driving exhaust gas recirculation comprising the steps of restricting exhaust gas flow into the turbine inlet to create backpressure in the exhaust system under low engine operating conditions, and providing an unrestricted exhaust gas flow to the turbine under normal engine operating conditions. Restriction of exhaust gas flow is accomplished through the use of an exhaust gas throttle valve disposed upstream of the turbine inlet. The valves can be adjustable knife edge flap valves or D-shaped valves situated in each passageway of a divided exhaust manifold, which are closed to varying degrees to generate desired levels of backpressure while allowing exhaust gas to pass though open regions of the partially obstructed flow pathway to reach the engine turbocharger. This allows the turbine to continue to spin, while at the same time exhaust gas back pressure upstream of the turbocharger is used to drive exhaust gas recirculation. | 08-08-2013 |
20130197785 | NOX CONTROL - A method of controlling an engine based upon airflow is provided. A request for a desired torque output of the engine is received. A first amount of fuel required to generate the desired torque is retrieving from a memory. An amount of airflow required to combust the fuel required to generate the desired torque at a predefined air/fuel ratio is calculated. A first amount of EGR required to produce a predefined amount of NOx emissions is calculated. The amount of airflow required to the first amount of EGR required is added. The total of the airflow and the first amount of EGR are compared to a volume available in a cylinder. At least one of the first amount of fuel delivered and the first amount of EGR provided is modified when the total of the airflow and the EGR exceeds the total volume available in the cylinder. | 08-01-2013 |
20130197779 | Setpoint Bank Control Architecture - A method of controlling operation of an engine is provided that utilizes a number of preset operating parameters. The method determines an operating mode of the engine. The method determines an operating state of the engine. A plurality of engine parameter settings is retrieved from a memory in response to the determined operating mode and the determined operating state of the engine. The plurality of engine parameter settings are applied to at least one control algorithm of the engine. | 08-01-2013 |
20130197778 | SOOT ACCUMULATION MODEL FOR SETPOINT MODIFICATION - A method controlling operation of an engine utilizing a number of preset operating parameters is provided. An operating mode of the engine is determined. An operating state of the engine is determined. A first plurality of engine parameter settings are retrieved from a memory in response to the determined operating mode and the determined operating state of the engine. The first plurality of engine parameter settings are applied to at least one control algorithm of the engine. A rate of soot accumulation from the engine is monitored. The rate of soot accumulation is compared to a predetermined soot accumulation rate threshold. A second plurality of engine parameter settings are retrieved from a memory in response to the monitored rate of soot accumulation exceeding the predetermined soot accumulation rate threshold. | 08-01-2013 |
20130195614 | TURBOCHARGER CONTROL - A method of controlling a variable geometry turbocharger is provided. A predefined desired boost pressure of a turbocharger is obtained from a memory. A predefined desired mass flow rate in an intake manifold of an engine is obtained from the memory. A theoretical amount of power required by the turbocharger to generate the desired boost pressure and the desired mass flow rate is calculated. An actual mass flow rate in the intake manifold is determined. An actual amount of power required by the turbocharger to generate the desired boost pressure and the actual mass flow rate is calculated. At least one adjustable vane of the turbine of the turbocharger is adjusted to allow the theoretical amount of power required of the turbocharger to generally equal the actual amount of power by adjusting the boost pressure. | 08-01-2013 |
20130192569 | OXYGEN CONCENTRATION SETPOINT MODIFICATION - A method of controlling exhaust gas recirculation in an engine is provided. An amount of oxygen in an exhaust of an engine is measured. A desired intake manifold oxygen concentration is obtained. An exhaust gas recirculation rate to provide the desired intake manifold oxygen concentration is calculated based on the measured amount of oxygen in the exhaust. An exhaust gas recirculation valve is set based on the calculated exhaust gas recirculation rate. | 08-01-2013 |
20130192568 | ENGINE CONTROLLING EMISSIONS DURING TRANSIENT OPERATIONS - A method of operating an engine is provided. Output of an engine speed sensor, a mass air flow sensor, an exhaust gas temperature sensor, and an engine torque estimator are monitored with an electronic control module. It is determined if the engine is operating in one of either a transient condition and a non-transient condition based upon output of at least one of the sensors and the torque estimator. Fuel injection timing is set based upon if the engine is operating in a transient condition. An exhaust gas recirculation valve position is set upon if the engine is operating in a transient condition. An intake throttle position is set based upon if the engine is operating in a transient condition. The fuel injection timing, exhaust gas recirculation valve position, and the intake throttle position are set to minimize NOx emissions when the engine is operating in a transient condition. | 08-01-2013 |
20130186985 | UNIT FUEL INJECTOR HAVING CHECK VALVE BODY AND SPRING CAGE FORMING A REVERSE FLOW CHECK CAVITY - A proximal end face of a proximal end wall ( | 07-25-2013 |
20130186969 | METHOD OF CONTROLLING THE OPERATION OF AN INTENSIFIER PISTON IN A FUEL INJECTOR - A method of controlling motion of a spool in a fuel injector is provided. A first current is provided on a close coil of the injector. A second current is initiated on an open coil of the injector while providing the first current. The first current is reversed after the second current reaches a saturation point. The first current is discontinued. The spool moves to the open position. The second current is discontinued with the spool in the open position. A third current is initiated on the close coil. A fourth current is provided on the open coil after initiating the third current. The fourth current on the open coil of the injector is reversed after the third current on the close coil reaches a saturation point. The fourth current is discontinued. The third current is discontinued with the spool in the closed position. | 07-25-2013 |
20130186373 | MITIGATION OF FUEL PRESSURE SPIKES IN A FUEL INJECTOR HAVING INDEPENDENTLY CONTROLLED PRESSURE INTENSIFICATION AND INJECTION - A pressure intensifier ( | 07-25-2013 |
20130184975 | METHOD OF CONTROLLING ENGINE SHUT DOWN - A method of shutting down an engine determines whether an ignition key is in a first shutdown position. An exhaust gas recirculation valve closes when the ignition key is in the first shutdown position. The engine runs for a predetermined period of time after the exhaust gas recirculation valve is closed. The engine shuts down after running the engine for the predetermined period of time. | 07-18-2013 |
20130180508 | SYSTEM AND METHOD OF CONTROLLING AN AMOUNT OF CONDENSATION IN AN ENGINE AIR INTAKE SYSTEM - A condensation collection system for an internal combustion engine having an exhaust gas recirculation system comprises a condensation collection line, a condensation accumulator, and a condensation expulsion line. The condensation collection line is disposed in fluid communication with an air intake system of an internal combustion engine. The condensation accumulator is in fluid communication with the condensation collection line. The condensation collection line being disposed between the air intake system and the condensation accumulator. The condensation expulsion line is in fluid communication with the condensation accumulator. A portion of the condensation expulsion line is disposed in contact with an engine exhaust pipe. The condensation expulsion line has an opening to vent condensation to the atmosphere. | 07-18-2013 |
20130180478 | ENGINE WITH ENGINE OIL VISCOSITY CONTROL AND METHOD FOR CONTROLLING THE SAME - An engine oil system for an internal combustion engine comprises an electronic control module, an oil viscosity sensor, am engine oil cooler, and an oil cooler flow control valve. The oil viscosity sensor is disposed in communication with the electronic control module. The electronic control module determines a viscosity of oil within the engine oil system based upon an output of the oil viscosity sensor. The oil cooler flow control valve is disposed in communication with the electronic control module. The oil cooler flow control valve is positionable between an open and closed position to regulate coolant flow to the engine oil cooler based upon an output of the electronic control module. The electronic control module moves the oil cooler flow control valve based upon the determined viscosity of the oil. | 07-18-2013 |
20130167513 | Diesel Particulate Fllter Having Three Way Catalyst Coating - Apparatuses described herein relate to a diesel particulate filter for use in a diesel engine exhaust system. The diesel particulate filter comprises a particulate filter having a plurality of filter flow channels configured to remove diesel exhaust particulates from a diesel exhaust stream. The plurality of filter flow channels are disposed for contact with the diesel exhaust stream and are coated with a three-way catalyst coating. The three-way catalyst coating may be configured to assist in soot oxidation during regeneration events as well as for the reduction of NO | 07-04-2013 |
20130166178 | FUEL INJECTION PATTERN AND TIMING - A method is provided for operating an engine to limit soot emissions during fuel-enriched operation. The method includes operating the engine using a first fuel injection pattern and timing to inject fuel into a combustion chamber of the engine. The method further includes receiving a request for an increased engine power output and operating the engine using a second fuel injection pattern and timing to inject more fuel into the combustion in response to the request for the increased power output, where the second fuel injection pattern and timing is configured to minimize soot emissions during enriched fuel operations, such as during transient operations. | 06-27-2013 |
20130160521 | SYSTEM AND METHOD OF GENERATING SELECTIVE CATALYST REDUCTION DOSING ESTIMATE FOR A DIESEL ENGINE - A control system for an engine having an in-cylinder pressure sensor and a selective catalytic reduction device comprises an electronic control module and an in-cylinder pressure sensor. The electronic control module has a processor and a memory. The in-cylinder pressure sensor is disposed in fluid communication with a cylinder of an engine. The incylinder pressure sensor is disposed in communication with the electronic control module. The in-cylinder pressure sensor generates an output indicative of a pressure within the cylinder of the engine. The processor of the electronic control module is programmed to generate an estimate of an amount of NOx produced during combustion, and calculate an amount of reductant required to react with the NOx to limit NOx emissions to a predetermined level. | 06-27-2013 |
20130160432 | LIMITING NOX EMISSIONS - Apparatus for controlling an internal combustion engine limits emission of undesirable compounds of nitrogen and oxygen and provides increased transient power. | 06-27-2013 |
20130160429 | LIMITING NOX EMISSIONS - A method for controlling an internal combustion engine limits emission of undesirable compounds of nitrogen and oxygen and provides increased transient power. | 06-27-2013 |
20130153652 | STATUS INDICATOR FOR AMONIA CARTRIDGE - Systems and methods for determining amount of solid ammonia stored in a canister used in providing ammonia fluid in exhaust gas after-treatment systems. A microcontroller sets an ammonia level based on the data read from an RFID tag associated with the canister. The data may provide the amount of solid ammonia stored in the canister or a tag number that the microcontroller may use to retrieve the quantity of stored solid ammonia. A measured amount of ammonia fluid used during the treatment process may be used by the microcontroller in determining the amount of solid ammonia depleted from the canister. At predetermined precisions, the amount of depleted ammonia is subtracted from the set ammonia level to determine the remaining amount of solid ammonia in the canister. This determined amount of may be used to reset the ammonia level and be written onto the RFID tag. | 06-20-2013 |
20130140478 | Two-Way Needle Control Valve - A two-way needle control valve for controlling the position of the needle of a needle valve in a fuel injector is disclosed. A poppet member configured for displacement between an open position and a closed position in a valve bore of a valve body. The valve bore includes drain for draining fuel from valve when valve is open. The valve includes a supply line that extends across at least a portion of the valve body. The supply line receives fuel from a high pressure fuel line. An inlet throttle line is in fluid communication with the supply line, and delivers fuel from the supply line to a control chamber in a throttle plate. An outlet throttle line delivers fuel from the control chamber to a valve body inlet line, which is configured to deliver fuel to the cavity in the valve bore. | 06-06-2013 |
20130008234 | PRE-INSTALLATION TURBOCHARGER BENCH TEST - Test apparatus ( | 01-10-2013 |
20120247089 | INSULATED MAIN NH3 CARTRIDGE SYSTEM WITH SEPARATE START-UP UNIT - A system and method relate to a reductant dosing for use in the reduction of NOx in an exhaust stream is disclosed. The system and method incorporates a separate first or start-up cartridge and an insulated mantel or housing containing at least one to a plurality of main cartridges. The first and main cartridges store an ammonia adsorbing/desorbing material, which releases ammonia gas upon application of sufficient heat. The start-up cartridge permits the initial release of ammonia gas into the exhaust stream even during start-up of an engine, and because it is separate from the main cartridge, the first cartridge cools faster than the main cartridge and can be replenished with ammonia sooner than the main cartridge. The start-up cartridge is housed in or surrounded by a non-insulating debris shield. | 10-04-2012 |
20120227399 | IN-FLOW AIR INJECTION HOUSING - An in-flow air injection housing configured to create suction for pulling a combustion gas through an EGR system. The housing includes an orifice that is configured to receive an inner ring. The inner ring includes an outer groove and a plurality of air jets. The housing further includes a supplemental gas inlet, a supply inlet, and a supply outlet. The supply inlet is configured to receive a supplemental gas that flows through the supplemental gas inlet. The supply outlet is positioned to deliver the supplemental gas received by the supply inlet to the outer groove. The supplemental gas may flow from the outer grove through annular air jets positioned along a side of the inner ring. The flow of supplemental gas through the air jets and into combustion gas(es) may provide momentum and/or friction that draws additional combustion gas through the housing. | 09-13-2012 |
20120205469 | Dual Mode Fuel Injector - A fuel injector for an internal combustion engine comprises a fuel intensification section and a needle control section. The fuel intensification section has an inlet and an outlet. The fuel intensification section receives fuel at a first pressure at the inlet and provides fuel at one of the first and second pressures at the outlet. The second pressure is greater than the first pressure. The needle control section has an injector needle and an injector needle control valve. The injector needle has a first position and a second position. The injector needle is disposed in the second position to allow fuel to flow from the fuel injector to the internal combustion engine. The injector needle control valve controls movement of the injector needle. All of the fuel that flows from the fuel injector to the internal combustion engine passes through the fuel outlet of the fuel intensification section. | 08-16-2012 |
20120189465 | HIGH PRESSURE FUEL PUMP PISTON ASSEMBLY - A piston assembly for a fuel pump comprises a first piston sub-assembly and a second piston sub-assembly. The first piston sub-assembly comprises a first piston portion, a first check ball connected to a first spring and a first O-ring. The first check ball forms a fluid tight seal against the first piston portion when the first spring is uncompressed. The first check ball allows fluid flow relative to the first piston portion when the first spring is compressed. The first O-ring has a front side and a back side. The first O-ring forms a fluid tight seal relative to the first piston portion. The second piston sub-assembly comprises a second piston portion, a second check ball connected to a second spring, and a second O-ring. The second check ball forms a fluid tight seal against the second piston portion when the second spring is uncompressed. The second check ball allows fluid flow relative to the second piston portion when the second spring is compressed. The second O-ring has a front side and a back side. The second O-ring forms a fluid tight seal relative to the second piston portion. The fluid flow relative to the first piston portion allows fluid to contact the front side of the second O-ring and the back side of the first O-ring. | 07-26-2012 |
20120186558 | ELECTRIC-ACTUATED CONTROL VALVE OF A UNIT FUEL INJECTOR - A unit fuel injector ( | 07-26-2012 |
20120174887 | ENGINE BRAKE CAMSHAFT LOBE LUBRICATION METHOD - In an engine braking system of the type wherein a cam lobe lifts a follower by direct contact, wherein the follower is at least partially contained in a brake housing containing oil. A slave piston is also at least partially contained in the brake housing, and during engine braking, movement of the follower causes the oil to move the slave piston outward. Movement of the slave piston opens an engine braking exhaust valve to open a flow path between an engine cylinder and an exhaust conduit. An oil passage through the follower is provided to lubricate an interface between a flat face of the follower and the cam lobe with oil from the brake housing. The oil passage has an outlet hole that is open on the flat face outside of the contact area between the flat face and the cam lobe. | 07-12-2012 |
20120104115 | BOUNDARY EDGE FILTER OF A UNIT FUEL INJECTOR - A unit fuel injector ( | 05-03-2012 |
20120020854 | METHOD, SYSTEM AND APPARATUS FOR LIQUID INJECTION INTO A GAS SYSTEM - A method for injection of a liquid reductant ( | 01-26-2012 |
20120011830 | METHOD FOR HEATING SOLID AMMONIA TO RELEASE GASEOUS AMMONIA IN EXHAUST AFTERTREATMENT SYSTEM - A method for heating solid ammonia (NH | 01-19-2012 |
20120000183 | METHOD FOR INJECTING AMMONIA INTO AN EXHAUST GAS STREAM | 01-05-2012 |
20110309680 | Battery Back Up for Electronic Modules - A battery backup system for providing uninterrupted power to components within a vehicle electronic control module (ECM). The backup system comprises a header connector with a recessed region for the battery. A connector plug is plugged into the header connector over the battery to cover the battery and shield the battery. The backup battery is disposed within the recessed region in contact with electrical contacts extending from the housing of the ECM, the electrical contacts providing a connection between the backup battery and an electronic component needing a backup power supply. Additional terminals on the connector plug can be used to provide power to the backup battery. The backup battery can be in a closed circuit with the electronic component, or the backup battery circuit can be switched to form a closed circuit with the electronic component when the electronic component no longer receives power from the primary power source. | 12-22-2011 |
20110309115 | DIRECT SIDE POUR RISER SLEEVE - A direct side pour riser sleeve ( | 12-22-2011 |
20110291038 | QUICK CONNECT VALVE WITH INTEGRAL BACKFLOW VALVE - A quick connect fluid valve assembly comprises a housing, a flow passage insert, and a movable connector. The flow passage insert is disposed at least partially within the housing and is movable relative to the housing. The flow passage insert forms a flow path from a first end of the flow passage insert to a second end of the flow passage insert. The movable connector is disposed in fluid communication with the flow path of the flow passage insert and the movable connector has at least one orifice. The movable connector is movable between a forward fluid flow position that allows forward fluid flow within the flow path of the flow passage insert and a backward fluid flow position that prevents backward fluid flow within the flow path of the flow passage insert. | 12-01-2011 |
20110289902 | METHOD FOR OPERATING AN EXHAUST VALVE FOR DIESEL PARTICULATE FILTER REGENERATION - A method of operating an exhaust valve ( | 12-01-2011 |
20110265302 | Diesel fuel injector circlip and ferrule ring removing tool - A removal tool includes a staking unit configured to deform a circlip located at a bore of an apparatus when the removal tool is pushed into the bore, and a spring fork unit configured to push a ferrule ring located at the bore when the removal tool is pushed into the bore. | 11-03-2011 |
20110257821 | METHOD FOR DIESEL PARTICULATE FILTER REGENERATION IN A VEHICLE EQUIPPED WITH A HYBRID ENGINE BACKGROUND OF THE INVENTION - The method for regeneration of a diesel particulate filter of a vehicle equipped with a hybrid engine, wherein the temperature of the exhaust exiting the diesel engine is increased above a predetermined level by increasing load thereon, through optimization of interaction between the diesel particulate filter aftertreatment system and the hybrid engine control through messaging via a communication bus is disclosed. The load on the engine may be increased with or without the assistance of the electric motor/generator of the hybrid engine, and will not affect required acceleration/deceleration of the vehicle. | 10-20-2011 |
20110252765 | EXHAUST THROTTLE VALVE SYSTEM AND METHOD FOR DIESEL PARTICULATE FILTER REGENERATION - An exhaust gas aftertreatment system ( | 10-20-2011 |
20110232279 | Internal Combustion Engine Having Compressor With First And Second Tributary Inlets - An internal combustion engine ( | 09-29-2011 |
20110220150 | CONE NUT INSIDE DIAMETER CLEANING - A cleaning apparatus that includes a device carrier that holds a device, a guide plate that guides the device carrier during extraction or retraction, a carrier support that supports the device carrier, and a ramp that supports and guides the carrier support to a cleaning position. | 09-15-2011 |
20110219745 | METHOD AND APPARATUS FOR GASEOUS MIXING IN A DIESEL EXHAUST SYSTEM - A mixing device and method for a diesel exhaust system is disclosed having a chamber, a mixer within the chamber, and an injection tube supported on the mixer within the chamber. The mixer is positioned within the chamber adjacent an inlet and includes a plurality of angled blades to effect turbulent flow in a diesel exhaust stream entering the chamber through the inlet. The injection tube includes a plurality of injection points (e.g., openings) for discharging a reagent, such as gaseous ammonia (NH | 09-15-2011 |
20110219595 | DISASSEMBLY STATION - An apparatus comprising a holding unit configured to hold a fuel injector for disassembly, a removal unit and an actuating unit. The removal unit comprises a first removal tool for removing a circlip and ferrule ring from the fuel injector, a second removal tool for removing a cone nut from the fuel injector, and a third removal tool for removing a screw from the fuel injector. The actuating unit comprises a first actuator configured to operate the holding unit, a second actuator configured to move the removal unit, and a third actuator configured to operate the third removal tool. | 09-15-2011 |
20110212644 | CONNECTOR POSITION ASSURANCE LOCK - A Connector Position Assurance (CPA) lock ( | 09-01-2011 |
20110208385 | METHOD FOR AUTOMATICALLY DETERMINING ENGINE OIL CHANGE FREQUENCY BASED ON FUEL INJECTED - A method for automatically determining an engine oil change frequency at an engine control unit includes the steps of determining an amount of fuel used per oil change, and calculating an amount of fuel remaining from the fuel used per oil change. The method also includes the steps of comparing the amount of fuel remaining to a predetermined amount of fuel remaining, and actuating an oil change indicator if the fuel remaining is less than the predetermined amount of fuel. | 08-25-2011 |
20110203258 | EXHAUST VALVE ACTUATION SYSTEM FOR DIESEL PARTICULATE FILTER REGENERATION - An exhaust valve actuation system ( | 08-25-2011 |
20110197568 | SYSTEM FOR DISABLING DIESEL PARTICULATE FILTER REGENERATION DURING ELECTRIC OPERATION - A regeneration disable control system ( | 08-18-2011 |
20110197423 | DEVICE AND METHOD FOR STORAGE TANK RESTRAINT ON A VEHICLE - A restraint device and method for securing an ammonia storage tank holder to a frame is disclosed. The restraint device includes first and second supports which sandwich about the holder in a parallel fashion. A connecting support attaches to and holds the first and second supports in a substantially parallel relationship about the storage tank holder, and is adjustable such that the second support is selectively movable to expand the perimeter of the holding space. The disclosed method includes the steps of affixing a first support having first and second ends to a frame of a vehicle, placing a storage tank holder into contact with at least one surface of the first support, placing a second support having first and second ends substantially parallel to the first support in contact with a surface of the storage tank holder opposite the first support, and securing the first and second supports. | 08-18-2011 |
20110192843 | ENGINE WITH REMOTE OIL FILL ASSEMBLY - A remote oil fill assembly for an internal combustion engine that has an engine oil fill point is provided. The remote oil fill assembly comprises a main body portion, an engine oil port end, and an oil fill end. The engine oil port end is disposed at a first end of the main body portion. The oil port end is fixedly attached to the engine oil fill point. The oil fill end is disposed at a second end of the main body portion. A flow path forms between the engine oil port end and the oil fill end to deliver fluid to the engine oil fill point. | 08-11-2011 |
20110192383 | INTAKE AIR/EGR MIXING SYSTEM CONFIGURATION - The intake air/EGR mixing system configuration for a V type engine wherein air entering the system via an air intake tube is split into two isolated streams by a flow divider positioned upstream of two manifold intake duct inlets, one stream leading to a respective intake duct inlet of a bank of the manifold, and wherein a mixer ring having a plurality of ports in the circumference thereof is secured within each manifold intake duct inlet, the ports feeding exhaust gas to be recirculated into the intake air stream flowing through the ring, from a split section of the exhaust gas tube leading to a respective one of said intake duct inlets, the ports in the mixer ring forming outlets for the exhaust gas feeding into the respective manifold intake duct inlet. | 08-11-2011 |
20110192375 | FUEL INJECTOR NOZZLE | 08-11-2011 |
20110181037 | ALIGNMENT CLAMP - An alignment clamp ( | 07-28-2011 |
20110146622 | CONTROL SYSTEM AND METHOD FOR LIMITING ENGINE TORQUE BASED ON ENGINE OIL PRESSURE AND ENGINE OIL TEMPERATURE DATA - A control system ( | 06-23-2011 |
20110131979 | EGR COOLER CLEANING SYSTEM AND METHOD - A method for dislodging exhaust gas deposits from an exhaust gas recirculation (EGR) cooler ( | 06-09-2011 |
20110131958 | SYSTEM AND METHOD FOR MITIGATING POTENTIAL FOR FORMATION OF UREA DEPOSITS IN AN ENGINE EXHAUST SYSTEM DURING COLD AMBIENT CONDITIONS - A device and method for catalytic reduction of NOx in gaseous products of a combustion process before entry into the atmosphere. The gaseous and particulate products of a combustion process flow radially through a radial flow particulate filter element ( | 06-09-2011 |
20110120433 | CRANKCASE BLOW-BY GAS TREATMENT ASSEMBLY AND METHOD OF TREATING BLOW-BY GAS - A blow-by treatment assembly ( | 05-26-2011 |
20110120411 | SOLENOID CONTROL FOR VALVE ACTUATION IN ENGINE BRAKE - An apparatus and method for varying a counter force to valve spring preload of a brake exhaust valve to undertake engine braking, includes a solenoid controlled hydraulic actuator. A control cylinder is arranged to move with a rocker arm and a control piston is arranged to slide within the control cylinder. During engine braking the control piston slides to press the valve stem to open the brake exhaust valve. An oil chamber is arranged above the control piston and is open into the control cylinder. A source of pressurized oil is selectably introduced into the oil chamber by the solenoid controlled hydraulic actuator to slide the control piston within the control cylinder to open and hold open the brake exhaust valve. | 05-26-2011 |
20110120123 | LOW PRESSURE TURBINE WASTE GATE FOR DIESEL ENGINE HAVING TWO STAGE TURBOCHARGER - A diesel engine, having a two stage turbine for driving a two stage intake air compressor, includes a second stage bypass path arranged around the second stage turbine. The second stage bypass path includes a second stage control valve to open or close the second stage bypass path. Also, a first stage bypass path around the first stage turbine can be used along with the second stage bypass path. An engine control is configured to open or close the first and/or the second stage bypass paths during an operator command for vehicle acceleration. When the engine includes a DOC and a DPF, the engine control can open the second stage bypass path in order to increase passive regeneration of the DPF. | 05-26-2011 |
20110120097 | Urea SCR diesel aftertreatment system - A device and method for catalytic reduction of NOx in gaseous products of a combustion process before entry into the atmosphere. The gaseous and particulate products of a combustion process flow radially through a radial flow particulate filter element ( | 05-26-2011 |
20110108013 | EXHAUST GAS RECIRCULATION VALVE WITH BYPASS CAPABILITY AND METHOD - Unique to this invention is the design of an Exhaust Gas Recirculation (EGR) valve with bypass capabilities. EGR valves combined with a bypass valve are expensive to design and manufacture due to their complexity and unique differences. Furthermore, the reliability of multiple components is much lower than that of the single component. During various engine operating conditions it is necessary to divert the flow of exhaust gas around the EGR cooler through the intake manifold or through the EGR cooler to lower the temperature of the exhaust gas to reduce noxious emissions. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. | 05-12-2011 |
20110106414 | ENGINE WITH ELECTRONICALLY CONTROLLED STARTING METHOD - A method of starting an engine is provided. A starter is initiated to impart a first engine speed to a crankshaft of the engine. Fuel injects at a first rate into at least one cylinder of the engine. Fuel in the at least one cylinder of the engine combusts to operate the engine at generally the first speed imparted to the crankshaft of the engine by the starter until a predetermined oil pressure develops within the engine. | 05-05-2011 |
20110100343 | EMISSION CONTROL SYSTEM FOR AN ENGINE HAVING A TWO-STAGE TURBOCHARGER - While an engine ( | 05-05-2011 |
20110100342 | FORCED CONVECTION EGR COOLING SYSTEM - A method of cooling recirculated exhaust gas from an exhaust manifold ( | 05-05-2011 |
20110100325 | THREE-WAY THROTTLE VALVE - A three-way throttle valve for an air intake system of an engine comprises an elongate-shaped valve plate, a positioning shaft, and an actuator. The elongate-shaped valve plate is disposed within an intake air portion of an air intake system. The elongate-shaped valve plate has a major axis and a minor axis. The positioning shaft connects to the elongate-shaped valve plate. The positioning shaft is disposed about the minor axis of the elongate-shaped valve plate. The actuator connects to the positioning shaft. The actuator has at least a first position setting, a second position setting, and a third position setting. At least a portion of the elongate-shaped valve plate contacts a portion of the intake air portion of the air intake system when the actuator is disposed in the first position setting. | 05-05-2011 |
20110100324 | HIGH-TEMPERATURE-FLOW ENGINE BRAKE WITH VALVE ACTUATION - A control system and method for engine braking for a includes an engine braking control and at least one exhaust valve actuator responsive to demands from the braking control for causing the exhaust valve to open. The braking control is configured to command the exhaust valve actuator to substantially open and substantially close the exhaust valve at least twice during each engine cycle, a first event and a second event, when the pressure within the exhaust manifold is greater than the pressure in the cylinder. The braking control can also command the exhaust valve actuator to substantially open and substantially close during a third event between the first and second events. | 05-05-2011 |
20110099997 | METHOD OF STATIONARY REGENERATION OF AN ENGINE EXHAUST PARTICULATE FILTER - A method of controlling an engine exhaust temperature and an exhaust mass flow rate for stationary regeneration of an engine exhaust gas particulate filter of an engine. The method implements a feed forward control that sets an EGR valve position and an injection timing associated with the engine, and a sets an engine speed. The method implements a feed back control that sets a turbo waste gate position and an intake throttle position associated with the engine. | 05-05-2011 |
20110099988 | SYSTEM AND METHOD OF CONTROLLING AN AMOUNT OF CONDENSATION IN AN ENGINE AIR INTAKE SYSTEM - A condensation collection system for an internal combustion engine having an exhaust gas recirculation system comprises a condensation collection line, a condensation accumulator, and a condensation expulsion line. The condensation collection line is disposed in fluid communication with an air intake system of an internal combustion engine. The condensation accumulator is in fluid communication with the condensation collection line. The condensation collection line being disposed between the air intake system and the condensation accumulator. The condensation expulsion line is in fluid communication with the condensation accumulator. A portion of the condensation expulsion line is disposed in contact with an engine exhaust pipe. The condensation expulsion line has an opening to vent condensation to the atmosphere. | 05-05-2011 |
20110099982 | UNINTENDED EXOTHERMAL REACTIONS MONITORING FOR DIESEL AFTER-TREATMENT SYSTEMS - An algorithm or diagnostic for detecting and alarming unintended exothermic conditions in exhaust after treatment components selectively detects alarming temperature variations in exhaust after treatment components when caused by internal unintended exothermal events, rather than transient conditions that are externally driven. Not only are the output temperature and the delta temperature (T_out−T_in) across the component monitored in each after-treatment device, but also the input temperature is deeply analyzed through its recent history data in order to determine if any input variations caused the output changes. | 05-05-2011 |
20110099974 | REDUCTANT SPRAY INJECTOR BOSS - A mounting boss ( | 05-05-2011 |
20110088671 | EXHAUST GAS RECIRCULATION COOLER SYSTEM - An exhaust gas recirculation cooling system for an internal combustion engine that has an exhaust system is provided. The exhaust gas recirculation cooling system comprises a cooling fluid circuit, an exhaust gas recirculation cooler, a turbine, a condenser, and a compressor. The cooling fluid circuit has a quantity of fluid that circulates through the exhaust gas recirculation cooling system and receives heat from the exhaust gas recirculation cooling system. The exhaust gas recirculation cooler is disposed in fluid communication with the exhaust system to receive engine exhaust gas from the engine and to remove heat from the exhaust gas. The exhaust gas recirculation cooler additionally disposed in fluid communication with the cooling fluid circuit. The cooling fluid within the cooling fluid circuit receives heat within the exhaust gas recirculation cooler. The turbine is disposed in fluid communication with the cooling fluid circuit. The turbine converts heat energy within the cooling fluid circuit to mechanical energy. A condenser is disposed in fluid communication with the cooling fluid circuit. The condenser cools fluid within the cooling fluid circuit. The compressor is also disposed in fluid communication with the cooling fluid circuit. The compressor pressurizes the fluid within the cooling fluid circuit and circulates the fluid within the cooling fluid circuit. | 04-21-2011 |
20110088374 | TELEMETRY-BASED REGENERATION STRATEGY FOR AN ENGINE EXHAUST AFTER-TREATMENT DEVICE - A method for timing performance of a maintenance function, in particular the timing of regeneration of a diesel particulate filter ( | 04-21-2011 |
20110083648 | FLEX Dual Stage EGR Cooling - A circuit for cooling exhaust gas being recirculated through an EGR system ( | 04-14-2011 |
20110083646 | Compressed Air Intake Engine Inlet Booster - An inlet air booster system for increasing turbocharger response time by utilizing compressed air from an engine driven compressor. Compressed air used to supply air for air braking system is channeled into an air tank to provide a boost of compressed air into the intake manifold. The inlet air booster system comprises an air booster ring disposed around a manifold inlet supply pipe, an air supply source, and a control valve. Compressed air from the air tank flows along a compressed air supply pipe regulated by a control valve, which in its open position allows air flow to the air booster ring. The air booster ring comprises an air chamber and a plurality of nozzles angled towards the direction of intake gas flow to provide a burst of compressed air into the intake manifold. The angled flow of compressed air enhances the flow of intake air into the intake manifold. | 04-14-2011 |
20110083428 | SCR MIXER - A device and method for catalytic reduction of NOx in gaseous products of combustion by directing the products of combustion through a particulate filter ( | 04-14-2011 |
20110079002 | SYSTEM AND METHOD FOR CONDENSATE REMOVAL FROM EGR SYSTEM - An exhaust gas recirculation system for an engine having an exhaust system includes an EGR cooler in fluid communication with an exhaust manifold. The EGR cooler receives a portion of the engine's exhaust gas. A cooled EGR passage is downstream of the EGR cooler, and an air intake line is in fluid communication with an intake manifold. A collecting vessel is located at or downstream of the EGR cooler for receiving condensate, and a condensate evacuation line is in fluid communication with the collecting vessel for receiving condensate from the collecting vessel. | 04-07-2011 |
20110073076 | FUEL INJECTOR CLAMP - A fuel injector clamp and method of clamping a fuel injector includes clamp members each including a central body with a concaved section and two horizontally offset passageways. Clamp members are oppositely oriented such that the concaved section forms a region adapted to engage a fuel injector. Offset passageways are aligned such that a top passageway of one member is aligned with a bottom passageway of the opposing member. A fastening mechanism is passed through a first pair of aligned passageways to form a hinge, allowing clamp members to pivot about the hinge so a fuel injector can be disposed between the concaved sections. Members are then pivoted towards each other to close the clamp assembly; a second fastening mechanism is passed through a second pair of aligned offset passageways to lock the injector into place. | 03-31-2011 |
20110072805 | ELECTRICALLY HEATED DIESEL OXIDATION CATALYST - An exhaust gas aftertreatment system ( | 03-31-2011 |
20110054763 | Intake Manifold Oxygen Control - A method for controlling intake manifold oxygen for an engine having a fresh air inlet and an exhaust gas recirculation (EGR) circuit includes the steps of: establishing an ideal excess oxygen ratio for combustion in the engine; calculating a total mass flow of oxygen to be delivered to an intake manifold of the engine to maintain the ideal excess oxygen ratio; determining a mass flow of EGR oxygen in the mass flow of EGR gas; and controlling a desired mass flow of fresh oxygen to be delivered to the intake manifold such that the sum of the desired mass flow of fresh oxygen and the mass flow of EGR oxygen is equal to the desired total mass flow of oxygen, by re-adjusting the EGR valve. | 03-03-2011 |
20110048391 | Breather Air - Oil Seperator - A breather system for a crankcase of an internal combustion engine includes a gas compressor configured to elevate the pressure of crankcase blow-by gas. At least one gas-oil separator receives gas with entrained oil from the compressor, separates oil from the gas and discharges cleaned gas. The oil is re-circulated back to the crankcase. The cleaned gas is either discharged through the engine exhaust system or re-circulated back into the engine combustion air intake. A bypass conduit allows cleaned gas to be re-circulated from the gas-oil separator outlet to the compressor inlet to balance the blow-by production with the capacity of the compressor. | 03-03-2011 |
20110048367 | CRANKCASE AND MAIN BEARING CAP CONSTRUCTION - A method for manufacturing an engine includes the steps of: casting a side skirt having first and second opposing sidewalls and casting a transverse wall of the cast material connecting the sidewalls. The transverse wall will form a bulkhead and a main bearing cap. A first void and a second void are cast into the transverse wall on opposite lateral sides of a main bearing journal location, each void adjacent to one of the sidewalls. A main bearing journal hole is then machined into the transverse wall. Cast material is removed along a first removal path from the edge of the transverse wall and ending into the first void, and along a second removal path from the edge of the transverse wall and ending into the second void. A tool exerts an opening force within the circular bore to fracture the cast material along the first and second fracture planes to separate the main bearing cap from the bulkhead. Before fracturing the cast material along the first and second fracture planes, main bearing bolt holes and cross bolt holes can be machined into the bulkhead and the bearing cap. A spacer piece can be fit into the removal paths when reassembling the bearing cap to the bulkhead. | 03-03-2011 |
20110048345 | EXPANSION TANK FOR VEHICLE COOLING SYSTEM - An expansion tank ( | 03-03-2011 |
20110047992 | PARTIAL COATING OF PLATINUM GROUP METALS ON FILTER FOR INCREASED SOOT MASS LIMIT AND REDUCED COSTS - A diesel particulate filter has a thin band of washcoated filter material either on the inlet of the upstream side or the outlet of the downstream side. The washcoating is with platinum group metals (PGM), e.g., Pt and Pd added to the surface and pore structure of a DPF. The PDF should provide comparable or improved distance between active regeneration and/or should prevent HC/CO slip during active DPF regeneration. | 03-03-2011 |
20110047969 | Post injection bucketing strategy to avoid hardware cavitation - An engine control system ( | 03-03-2011 |
20110047968 | Method and Apparatus for De-Sulfurization on a Diesel Oxidation Catalyst - A diesel exhaust after-treatment system ( | 03-03-2011 |
20110042546 | MOUNT FOR EXHAUST SYSTEM COMPONENTS | 02-24-2011 |
20110041816 | Apparatus and Method for Protecting Against Fouling of an Exhaust Gas Recirculation Valve - This invention relates to a method for protecting an exhaust gas recirculation (EGR) valve from fouling due to hydrocarbon condensation at low EGR cooler outlet exhaust temperatures. In modern internal combustion engines exhaust gas recirculation (EGR) valves provide a means to recirculate exhaust gases into the intake air stream. The EGR valve regulates the flow of exhaust gas entering the stream. The EGR valve can experience fouling due to the condensation of hydrocarbons at low EGR cooler outlet exhaust temperatures. Typically, fouling occurs when the internal combustion engine is operating at relatively low temperatures, namely during low speed and/or low torque operations. The effects of fouling an EGR valve include higher emission levels, reduction in fuel economy, and rough idling. | 02-24-2011 |
20110031067 | Turbocharger Lubrication Feed Adapter - A fitting or adapter for attaching connecting an oil feed tube to a bearing housing of a turbocharger includes a body having a cylindrical sidewall with a central through-channel and an annular groove on an outside thereof for holding a seal ring, such as an O-ring. The sidewall has a plurality of radial holes, the holes spaced apart around a circumference of the cylindrical body and each connecting the central channel and the groove. The radial holes each can have a diameter of between ¼ and ⅓ of a width of the groove taken along an axial direction of the cylindrical sidewall. | 02-10-2011 |
20110030739 | CORE WASH RECIRCULATING TANK SYSTEM - A core wash tank has a core wash bath compartment ( | 02-10-2011 |
20110030661 | STRATEGY FOR ENABLING INTAKE AIR HEATER TO CLEAN UP WHITE SMOKE DURING WARM ENGINE RE-START IN COLD WEATHER - A motor vehicle has an engine compartment ( | 02-10-2011 |
20110030641 | THROTTLE LOSS RECOVERY AND SUPERCHARGING SYSTEM FOR INTERNAL COMBUSTION ENGINES - A system and method of creating sub-atmospheric and super-atmospheric pressure in an intake manifold ( | 02-10-2011 |
20110030635 | FUEL INJECTOR NOZZLE FOR REDUCED COKING - The present invention modifies the outlet holes of a fuel injector for injecting fuel into a cylinder of an internal combustion engine. In the present invention, the outside opening of the outlet holes are modified in a manner that increases the outside opening, making the outside opening larger than the inside opening and creating an intermediate opening, which is recessed with the needle housing. | 02-10-2011 |
20110030634 | BRIDGE AND PIVOT FOOT ARRANGEMENT FOR OPERATING ENGINE CYLINDER VALVES - An internal combustion engine has one or more engine cylinders ( | 02-10-2011 |
20110030626 | ENGINE CRANKCASE FIRING DECK HAVING ANTI-DISTORTION PROJECTIONS - A firing deck ( | 02-10-2011 |
20110030371 | SYSTEM USING SUPPLEMENTAL COMPRESSOR FOR EGR - A system for driving an EGR stream for an engine includes an exhaust gas turbine, a main compressor and a supplemental EGR compressor. The turbine drives the main compressor to pressurize intake air and drives the supplemental EGR compressor to pressurize an EGR exhaust gas stream to be introduced into the intake air system. A supplemental EGR compressor takes suction of exhaust gas downstream from the turbine. A three-way valve proportions exhaust gas between the engine exhaust gas discharge conduit and the suction of the supplemental EGR compressor. The turbine drives a shaft and the main compressor and the supplemental EGR compressor are driven by having corresponding compressor wheels fixed onto the common shaft. | 02-10-2011 |
20110030349 | QUICK-HEATING OF A UREA SUPPLY CONDUIT FOR AN ENGINE EXHAUST AFTER-TREATMENT SYSTEM - A urea supply conduit ( | 02-10-2011 |
20110025045 | FITTING WITH AUDIBLE MISASSEMBLY INDICATOR - A fitting ( | 02-03-2011 |
20110023851 | METHOD AND APPARATUS FOR REDUCING BLOW-BY COKING - A method of coking entrained oil from blow-by gas (F) of an engine ( | 02-03-2011 |
20110023849 | Turbocharger with Integrated Centrifugal Breather - A breather system for a crankcase of an internal combustion engine, includes a centrifuge driven by the engine turbocharger. The turbocharger has a turbine and a compressor, the compressor driven by the turbine. The centrifuge is driven by the turbine on a common shaft with the compressor and includes a centrifuge inlet, a gas outlet and an oil outlet. Crankcase gas is delivered to the centrifuge and oil is removed by the centrifuge and collected within the turbocharger housing and substantially oil free gas is passed through the centrifuge, through an axially passage in the shaft and into an inlet of the compressor. | 02-03-2011 |
20110023840 | Exhaust Gas Cooler - A method of cooling exhaust gas (F) from an engine in an EGR cooler ( | 02-03-2011 |
20110023796 | Adaptive EGR Cooling System - A first loop contains engine coolant passageways ( | 02-03-2011 |
20110006483 | FORM IN PLACE GASKET MEMBRANE - A cartridge ( | 01-13-2011 |
20100313629 | Preventing Soot Underestimation in Diesel Particulate Filters by Determining the Restriction Sensitivity of Soot - A method of determining a need to perform regeneration of a diesel particulate filter in a diesel engine exhaust predicts a soot load of a diesel particulate filter with a pressure change based soot load estimate based upon a pressure change across the diesel particulate filter at a first time and a second time. A restriction sensitivity for the diesel particulate filter is calculated based upon the pressure change across the diesel particulate filter at the first time and the second time. The method transitions from the pressure change based soot load estimate to a model based soot accumulation estimate of the soot load of the diesel particulate filter upon the restriction sensitivity falling below a predetermined threshold. Regeneration of the diesel particulate filter is requested after the estimated soot level reaches a preset level based upon the soot accumulation model. | 12-16-2010 |
20100260595 | FLOW REGULATION MECHANISM FOR TURBOCHARGER COMPRESSOR - A turbocharger ( | 10-14-2010 |