Class / Patent application number | Description | Number of patent applications / Date published |
184600120 | Gearing | 77 |
20080196975 | DIFFERENTIAL DEVICE - An embodiment of a differential device of the present invention comprises a pair of side gears and a pair of pinion gears housed inside a differential case, with the pinion gears supported by a pinion shaft fixed to the differential case at axial end sections thereof so as to be capable of sliding freely thereabout. Lubricating oil channels are provided that pass through each of the end sections of the pinion shaft in the axial direction thereof. One end of each lubricating oil channel opens to the exterior of the differential case at a shaft-end corner section of the pinion shaft corresponding to an upstream side thereof in a direction of rotation of the differential case, and another end opens to a sliding surface of the pinion shaft with respect to one of the pinion gears. The differential device also comprises a mechanism for providing lubricating oil to the lubricating oil channels upon rotation of the differential case. | 08-21-2008 |
20080202853 | Transmission Including Magnetic Sensor Device - A transmission includes first and second transmission shafts arranged parallel to each other and rotatably supported in a casing, plural gear trains arranged between the first and second transmission shafts, each gear train including a drive gear and a driven gear engaging with each other, the first and second transmission shafts transmitting power therebetween by means of one of the gear trains, a magnetic sensor device including a magnetic portion generating a magnetic field and a detection portion detecting a change of the magnetic field generated by the magnetic portion, a lubricant supply pump for suctioning a lubricant stored at a bottom portion in the casing and for sending the lubricant suctioned, and a lubricant supply pipe for ejecting the lubricant sent from the lubricant supply pump to the magnetic portion exposed within the casing. | 08-28-2008 |
20080223662 | INTERNAL COMBUSTION ENGINE AND VEHICLE HAVING THE INTERNAL COMBUSTION ENGINE - An engine (internal combustion engine), in accordance with an embodiment, includes: a crankcase having an oil pan; a crankshaft disposed inside the crankcase; a second crank gear disposed inside the crankcase to rotate about the crankshaft; a driven gear meshed with the second crank gear to be rotated as the second crank gear rotates; an oil pump drive gear meshed with the driven gear to rotate together with the driven gear; and an oil pump gear to be rotated as the oil pump drive gear rotates. The oil pump gear is disposed to overlap the driven gear as viewed from an axial end of the crankshaft. | 09-18-2008 |
20080245614 | Lubricant flow suppressor - A lubricant flow suppressor positioned proximate a rotating component for receiving ejected lubricant therefrom and reducing the kinetic energy of the ejected lubricant. The suppressor includes at least two perforated walls with a lubricant flow path formed therebetween. | 10-09-2008 |
20080251324 | Lubricating structure for transmission - A lubricating structure for a transmission includes an axial hole formed penetrating through a gear shaft in an axial direction thereof and having a first opening at one axial end of the gear shaft for supplying therein a lubricant and a second opening at the other axial end thereof, a first oil hole provided on the gear shaft in a radial direction thereof to establish communication between the axial hole and an outside of the gear shaft, and a tapered groove provided on an inner wall of the axial hole in the axial direction thereof, wherein the lubricant is supplied to a portion needing lubrication via the axial hole or via the axial hole and the first oil hole, and the tapered groove is deeper at the second opening side than the first opening side. | 10-16-2008 |
20080308354 | Power Divider for Motor Vehicles and Lubrication Thereof - A power divider for motor vehicles includes a housing, a primary shaft and a secondary shaft, wherein a friction clutch having an outer part that is rigidly connected to the primary shaft, and an inner part, derives torque from the primary shaft and delivers the torque to the secondary shaft by means of the inner part and a displacement drive. To ensure a sufficient supply of lubrication oil under all conditions, an oil reservoir, which at least partially surrounds the ramp ring, is fixed in the housing between the coupling and the displacement drive. The base of the oil reservoir comprises at least one opening, which is adjacent to the upper part of the periphery of the ramp ring, and the oil reservoir has at least one guiding device that extends into the centrifugal area of the displacement drive, through which the centrifuged lubrication oil is received in the reservoir. | 12-18-2008 |
20090020365 | Lubrication arrangement - A lubrication arrangement for interlocking gears | 01-22-2009 |
20090050411 | Industrial Robot Lubricated with a polyglycol-Based Lubricant - An industrial robot including a plurality of power transmission units. At least one of the power transmission units is a compact transmission unit including a rotary vector gear reducer arranged to be lubricated with a polyglycol-based lubricant. | 02-26-2009 |
20090057061 | GEARBOX COMPRISING GEAR PUMP - A gearbox for a motor vehicle is provided that includes, but is not limited to an input shaft, an output shaft and a plurality of wheel sets for coupling input and output shaft with different transmission ratios and a gear pump, which is arranged to for delivering from a reservoir of the gearbox. The gear pump is an outer gear pump and one of two gears of the gear pump meshing with one another belongs to one of the wheel sets. | 03-05-2009 |
20090114480 | OIL MANIFOLD FOR LUBRICATING BEARINGS - A bearing oil supply assembly includes (a) a plate member with opposed first and second sides, the plate member having a first bore formed in the first side which is adapted to receive a first bearing; (b) an annular manifold attached to the plate member such that the plate member and the manifold cooperatively define an annular oil gallery; and (c) a plurality of passages formed in the manifold, the passages cooperating with the plate member to define a plurality of generally axially-directed pathways in fluid communication with the first bore and the oil gallery. The passages are substantially evenly spaced around the circumference of the manifold. The oil supply assembly may be used to supply oil to two bearings carrying separate shafts running at different speeds. | 05-07-2009 |
20090139799 | TEXTURED SURFACES FOR GEARS - A gearbox includes a plurality of gear sets disposed within a gearbox housing. Each gear set includes at least two gears meshing with one another. Each gear includes one or more dimpled surfaces configured to hold lubricant for providing lubrication between the gears meshing with one another. A plurality of bearings is provided to support the plurality of gear sets. | 06-04-2009 |
20090139800 | TRANSMISSION PUMP SYSTEM - A pump system for use in a transmission includes a first pump, a second pump, and a sump. A first fluid passage connects an inlet of the first pump to a sump filter connected to the sump. A second fluid passage connects an inlet of the second pump to the sump filter of the sump. A third fluid passage connects the inlet of the first pump with the inlet of the second pump. A bypass outlet is in communication with the third fluid passage. | 06-04-2009 |
20090159370 | Dual splined shaft - The present disclosure provides a lubricating system for a dual splined hollow shaft. A fluid dam is formed circumferentially within the hollow shaft to control the lubrication of the dual splines. The fluid dam includes a pair of sidewalls extending radially inward from the inner wall of the hollow shaft to a height defined by a top wall. A channel formed through the pair of sidewalls permits the movement of lubricant between splines of the hollow shaft. An egress port extends from the top wall of the dam through the outer wall of the hollow shaft to permit lubricant to exit the hollow shaft. | 06-25-2009 |
20090173579 | Differential Transmission With Cleaning Feature - A limited slip differential transmission of the closed type in which a pressurized lubricant is fed to the rotating gears and a series of limited slip clutch plates. The clutch plates are engaged by pressurized control fluid. A valve assembly having a spool valve is responsive to engagement pressure to permit discharge of a portion of pressurized fluid from the clutch plates to a sump chamber and the transmission to purge debris that may have accumulated in the clutch plates. The spool valve is arranged so that fluid is passed only during an intermediate movement of the valve to minimize any pressure loss from the lubricating fluid for the transmission and limited slip clutches. | 07-09-2009 |
20090211850 | LUBRICATION CONTROL SYSTEM FOR AUTOMATIC TRANSMISSIONS - An automatic transmission lubrication control system includes a modulating, spring biased spool valve and feedback circuit. One end of the spool valve is supplied with line pressure hydraulic fluid. The valve spool modulates a flow of lubricating hydraulic fluid from the cooler and its position is determined by a force balance between the line pressure, the regulated fluid output pressure to the lubrication system and the force of the biasing spring. In a reduced lubrication state, a signal from a transmission control module opens a solenoid valve to provide high pressure fluid to a three way check valve which closes the feedback circuit and applies high pressure fluid to the opposite end of the valve spool. This action moves the valve spool to a travel limit, closing off flow from the cooler. Hydraulic fluid from the torque converter feed is then routed to the lubrication system. | 08-27-2009 |
20090277722 | ARRANGEMENT FOR COOLING OF OIL IN A GEARBOX FOR A VEHICLE - An arrangement for cooling oil in a gearbox of a vehicle which is powered by a combustion engine. An oil cooler is fitted in the vehicle close to the gearbox. An oil system circulates oil between the gearbox and the oil cooler. An oil circuit contains a circulating coolant to cool the oil in the oil cooler. A cooling element cools the coolant by air which flows through the cooling element. The cooling element is situated at a location in the vehicle where air at the temperature of the surroundings flows through it. The cooling circuit includes a line to lead the cooled coolant from the cooling element to the oil cooler. The oil in the oil cooler can thus be cooled to a temperature close to the temperature of the surroundings. | 11-12-2009 |
20100018807 | OILING DEVICE, GEARBOX AND A METHOD TO LUBRICATE A GEARBOX - A lubrication device for a gearbox during operation with a plurality of gearwheel pairs in constant engagement. The lubrication device has a plurality of respective nozzles for oil supply from an oil pump to the gearwheel pairs by means of a pump from an oil source. To save pump power, a controllable valve, which adjusts the oil supply to the gearwheel pairs in accordance with a varying load upon the various mutually engaging gearwheels, is provided for each nozzle. | 01-28-2010 |
20100018808 | METHOD FOR CONTROLLING THE OIL SUPPLY OF AN AUTOMATIC PLANETARY TRANSMISSION - The invention relates to a method for controlling the oil supply device of an automatic planetary transmission, comprising a main oil pump (HP), which is mechanically drivably connected to the drive shaft of an internal combustion engine (VM), and an auxiliary oil pump (ZP) that may be driven via a controllable electric motor, the automatic transmission (ATG) being part of a parallel hybrid powertrain of a motor vehicle having an input shaft ( | 01-28-2010 |
20100032242 | Pressure Relief Device for a Gear Box - A pressure relief device for a gear box which is disposed in the gear box and comprises a body, a blocking member and a spring. The body is defined with a penetrating hole. The spring pushes the blocking member and makes it seal the penetrating hole. When the pressure rises since the temperature therein is risen, and when the gas pressure in the gear box is larger than the force of the spring, the gas can push the blocking member and compress the spring, and then discharge from the penetrating hole of the body, thus reducing the pressure and the temperature of the gear box. | 02-11-2010 |
20100038174 | DIFFERENTIAL LUBRICANT TEMPERATURE CONTROLLER - The invention is a device for controlling the temperature and thus the viscosity of the lubricating fluid in a rear axle or differential. A first embodiment of the device comprehends a curved bi-metal strip or plate disposed proximate the ring gear and closely conforming to it. The strip extends about the periphery of the ring gear in the direction of rotation of the gear when the vehicle is moving forward. As the temperature of the lubricating fluid increases or decreases, the bi-metal strip or plate moves to direct a larger or smaller flow of the lubricating fluid toward the housing through which heat is transferred to the atmosphere. In another embodiment, a bi-metal baffle disposed adjacent the ring gear includes a plurality of flaps which open upon a rise in lubricating fluid temperature and direct more fluid to the housing to assist heat dissipation. | 02-18-2010 |
20100140019 | Lubricating system for gear train - This invention provides a lubricating system for a gear train including: a lubricating oil supply port configured to supply a lubricating oil in a direction vertical to both axes of a pair of gears and toward a mesh point at which the pair of gears are meshed with each other; a shroud configured to cover at least teeth of the pair of gears so as to form a flow passage of the lubricating oil between the pair of gears and the shroud; and a pair of discharge ports respectively configured to discharge the lubricating oil from the flow passage. The pair of discharge ports are respectively positioned at two portions of the shroud respectively opposed to the mesh point across respective axes of the pair of gears. | 06-10-2010 |
20100140020 | TRAVELING DRIVE UNIT FOR WORKING VEHICLE - A lubricant circulation pump ( | 06-10-2010 |
20100200335 | METHOD AND DEVICE FOR OILING THE AXIAL APPROACHES OF LOOSE WHEELS DISPOSED ON A SHFT - A method for oiling the axial stops ( | 08-12-2010 |
20100243376 | Lubricant fill and drain assembly for a gearbox - A lubricant fill and drain assembly for a gearbox mounted on a drive unit of a mechanized irrigation system is disclosed which provides a convenient means for adding lubricant to a gearbox and for draining lubricant and/or water from the gearbox from a position somewhat remote from the gearbox. The assembly of this invention not only provides a convenient way of adding lubricant to the gearbox but ensures that the gearbox will not be over filled with lubricant. | 09-30-2010 |
20100263965 | OIL SUPPLY AND DISCHARGE FOR A TRANSMISSION - The invention relates to a drive system in which components for a front transverse arrangement in a motor vehicle, such as the clutch, shaft, and transmission, are disposed in a casing that is preferably pot-shaped. The oil is centrally supplied via the shaft. An effective centrifugal force allows a certain oil level to be established within the casing, said oil level once again being drained by accordingly discharging oil, preferably parallel to the shaft. | 10-21-2010 |
20100320033 | SELF CLEANING GREASE LUBRICATED SPLINE - A lubrication system for a spline interface ( | 12-23-2010 |
20110024236 | LUBRICATING DEVICE AND METHOD FOR GEARBOX - In order to provide a lubricating device and lubricating method for a gearbox which does not take long to heat the lubricant oil and prevents the aeration of the lubricant oil due to the splashing thereof during the activation of the gearbox, the present invention provides a lubricating device for a gearbox comprising: a gearbox which includes an input shaft, a group of gears rotated by the rotation of the input shaft, and an output shaft rotated by the rotation of the group of gears, the rotation of the input shaft being speeded up and outputted to the output shaft via the group of gears; an oil storage chamber which stores lubricant oil for lubricating the gearbox; a lubricant oil circulating line which includes a pump and through which the lubricant oil stored in the oil storage chamber is supplied to the gearbox by the pump and then returned to the oil storage chamber; a bypass line which is provided in the oil lubricant circulating line and bypasses the gearbox; and a switching valve which is provided in the oil lubricant circulating line and switches a supply path of the lubricant between supplying the lubricant oil to the gearbox and supplying the lubricant oil to the bypass line. | 02-03-2011 |
20110048857 | LUBRICATION SYSTEM - In one aspect a method for lubricating a tribosystem is provided that may include providing a new tribosystem including at least two solid surfaces that interact during operation of the tribosystem and providing lubrication oil for lubricating the tribosystem. The method may further include operating the tribosystem while lubricating the tribosystem with the lubrication oil during an initial period and supplying anti-wear additives to the lubrication oil at the end of the initial period. In another aspect a lubrication assembly for containing lubrication oil may be provided. The lubrication assembly may include an anti-wear additive storage and a releaser that is configured for releasing anti-wear additive from the anti-wear additive storage into the lubrication oil after an initial period of operation. | 03-03-2011 |
20110168494 | LUBRICATION OF WIND TURBINE GEARBOX DURING IDLING OR LOSS OF ELECTRIC GRID - A lubrication system for a wind turbine is provided. The system includes a supply subsystem for providing oil via an oil tank or a hydraulic accumulator to a gearbox of the wind turbine for lubrication during at least one of idling or loss of electric grid. The system also includes a control subsystem for controlling the flow in the lubrication system. | 07-14-2011 |
20110168495 | LUBRICATION OF FLUID TURBINE GEARBOX DURING IDLING OR LOSS OF ELECTRIC GRID - A lubrication system for a fluid turbine is provided. The system includes a supply subsystem for providing oil via an oil tank or a hydraulic accumulator to a gearbox of the fluid turbine for lubrication during at least one of idling or loss of electric grid. The system also includes a control subsystem for controlling the flow in the lubrication system. | 07-14-2011 |
20110180352 | MACHINE HAVING LUBRICANT CIRCUIT - A machine includes, but is not limited to at least one first shaft, which is mounted so it is rotatable in a housing, a lubricant duct extending in the first shaft along its axis, and at least one lubrication point, which is supplied with lubricant via a supply line comprising the lubricant duct. A section of the supply line runs in a first wall of the housing between an outlet opening of the lubricant duct and the lubrication point. | 07-28-2011 |
20110214947 | LUBRICATION SYSTEM FOR A VEHICLE TRANSMISSION - A lubrication system is provided for a vehicle transmission having shaft bearings, gearwheel hub bearings, gear rings of interlocking gear shift gearwheel pairs, and rotationally-fixed, axially-displaceable mounts of synchronous clutch elements. The lubricant is kept in a loop, which is supported by gravity and lubricant guide components. For a first, a second, and a third lubrication area, a first, a second, and a third lubricant passage, respectively, are provided, having drip openings to the respective lubrication areas situated underneath. A crown wheel protrudes into a lower lubricant collection volume, and a lubricant guide channel extends from an outer circumference of the crown wheel to an upper lubricant collection volume | 09-08-2011 |
20110272214 | ELECTROMECHANICAL DEVICE - An electromechanical device comprises a mechanical interface structure ( | 11-10-2011 |
20110297485 | MULTI-STAGE AMPLIFICATION VORTEX MIXTURE FOR GAS TURBINE ENGINE COMBUSTOR - A lubrication system, includes an auxiliary lubricant tank | 12-08-2011 |
20120024631 | CIRCUIT AND A METHOD FOR FEEDING OIL TO ROLLING BEARINGS IN A TURBOMACHINE - The invention relates to a circuit and a method for feeding oil to rolling bearings in a turbomachine, the circuit comprising an oil supply, an oil duct connecting the supply to lubrication enclosures, each containing at least one rolling bearing, an oil feed pump located between the supply and the lubrication enclosures, an oil recovery pump connected downstream from each lubrication enclosure, and a pressurizing valve placed in the duct between the oil feed pump and the lubrication enclosures, said pressurizing valve being adapted to open when the pressure at its inlet exceeds a predetermined threshold pressure; a branch connection duct connecting the inlet of the pressurization valve to one of the lubrication enclosures in order to feed it with oil; and means for feeding the lubrication enclosures at a small oil flow rate so long as the pressure at the inlet of the pressurization valve has not reached the predetermined threshold. | 02-02-2012 |
20120061184 | Transmission Pump - This invention provides both a pump and a lubrication and cooling system with a pump which includes a pump housing, a rotor, a relief valve and a bypass valve. The relief valve is configured to relieve pump pressure when the pump pressure is indicative of an abnormal restriction of flow. The bypass valve is configured to direct fluid flow from an outlet chamber of the pump to an intake chamber of the pump when pressure in the outlet chamber is at a value associated with a predetermined speed of rotor rotation. | 03-15-2012 |
20120073905 | OIL PASSAGE STRUCTURE FOR TRANSMISSION - An oil passage structure for a transmission includes a transmission case having a transmission housing chamber for reserving working oil and housing a continuously variable transmission mechanism therein, and a valve housing chamber for reserving the working oil and housing a valve unit therein. Further, the valve housing chamber housing the valve unit is disposed above an oil level in the transmission housing chamber. Furthermore, the valve housing chamber and the transmission housing chamber communicate with each other through a drain port closed with a drain plug. In demounting of the valve unit, the drain plug is pulled out to open the drain port. Hereby, the working oil can be transferred from the valve housing chamber to the transmission housing chamber, and the valve unit can be demounted without draining the working oil from the transmission case. | 03-29-2012 |
20120103728 | LUBRICATION SYSTEM WITH TOLERANCE FOR REDUCED GRAVITY - A lubrication system includes an auxiliary lubricant tank | 05-03-2012 |
20120145483 | LUBRICATING OIL COLLECTING AND GUIDING DEVICE - An oil path ( | 06-14-2012 |
20120168254 | Common Power Lubricated Gearboxes on Combine Harvester - In one embodiment, a lubricant distribution system for a combine harvester, the lubricant distribution system comprising: a plurality of gearboxes coupled to different locations on the combine harvester, each of the plurality of gearboxes comprising lubricating fluid; a reservoir configured to receive the lubricating fluid from the plurality of gearboxes; and a pump configured to pump the lubricating fluid received from the reservoir to the plurality of gearboxes. | 07-05-2012 |
20120247874 | Gearbox with Passive Lubrication System - A lubrication system includes a reserve housing configured to retain a lubrication fluid. A supply line in fluid communication with the reserve housing is configured to provide pressurized lubrication fluid to the reserve housing. An overflow tube has an overflow port, the overflow tube being configured to prevent the volume of the lubrication fluid from exceeding a certain amount. A metering jet is configured to allow the lubrication fluid to flow from the reserve housing onto a component, such as a bearing, in the gearbox at a predetermined rate. The metering jet provides flow of the lubrication fluid onto the bearing even when the supply line no longer provides pressurized lubrication fluid to the reserve housing. | 10-04-2012 |
20120247875 | LUBRICATION STRUCTURE FOR ENGINE - A lubrication structure is provided for supplying lubricating oil to a transmission of an engine. The engine includes a mission holder which includes a power transmission mechanism between a main shaft and a countershaft as a unit and is removably mounted in a mission chamber, and a clutch chamber having a clutch mechanism is provided adjacent the mission chamber for transmitting rotation of a crankshaft to the transmission. Two oil introduction ports are provided on the mission holder, which is between the clutch chamber and the mission chamber. The two oil introduction ports enable the two chambers to communicate with each other. Each of the oil introduction ports has an opening provided therein which opens upwardly on a clutch chamber side of the mission holder. | 10-04-2012 |
20130001017 | OIL LEVEL MAINTENANCE SYSTEM - Oil level maintenance system for a gearbox ( | 01-03-2013 |
20130001018 | LUBRICATING STRUCTURE OF DIFFERENTIAL GEAR UNIT - A lubricating structure of a differential gear unit includes a differential case that rotatably supports side gears and pinions; a differential housing that rotatably supports the differential case via a bearing; and a lubrication hole that leads lubricating oil from a first chamber space formed between the differential case and the differential housing to a second chamber space formed around one drive shaft. A third chamber space is formed inside the differential case. A smallest passage sectional area of a lubricating oil flow path that leads from the second chamber space to the first chamber space via the bearing is smaller than a smallest passage sectional area of the lubrication hole, and a smallest passage sectional area between the second chamber space and the third chamber space and a smallest passage sectional area in the third chamber space are larger than the smallest passage sectional area of the lubrication hole. | 01-03-2013 |
20130075198 | GEAR UNIT AND A METHOD FOR CONTROLLING A LUBRICATION PUMP OF A GEAR UNIT - A gear unit comprises shafts for connecting to an external mechanical system, at least one gear stage between the shafts, a lubrication pump for circulating lubricating oil through the at least one gear stage and bearings of the gear unit, a temperature sensor for measuring temperature of the lubricating oil and supplying a temperature signal, an electrical motor for driving the lubrication pump, and an electrical device for controlling the electrical motor so that torque directed to the lubrication pump is below a torque limit. The torque limit is determined dynamically on the basis of the measured temperature of the lubricating oil. This arrangement makes it possible to protect the lubrication pump against mechanical faults during a cold start process so that an unnecessarily strict torque limitation, which would slow down the cold start process, can be avoided. | 03-28-2013 |
20130180803 | GEAR TRAIN LUBRICATING DEVICE - A lubricating device for a gear train ( | 07-18-2013 |
20130213740 | LUBRICATING STRUCTURE OF TRANSMISSION - A lubricating structure of a transmission is capable of supplying more lubricating oil to the vicinity of one end portion of a shaft, which rotates in a transmission, than lubricating oil supplied to the remaining mechanisms of the transmission. An internal space of the shaft rotating in the transmission has a pipe inserted thereto with a gap provided therebetween, a large-diameter portion having two shaft lubrication holes, a stepped portion, and a small-diameter portion having a shaft lubrication hole. The pipe has a first pipe lubrication hole in communication with the gap and a second pipe lubrication hole in communication with the small-diameter portion. | 08-22-2013 |
20130292209 | ARRANGEMENT OF A TRANSMISSION AND OF AN ATTACHMENT MODULE - An arrangement of a transmission ( | 11-07-2013 |
20130327595 | WHEEL LOADER - A transmission for a wheel loader includes first and second oil accumulating parts, a communication oil path, a horizontal hole and a vertical hole. The first oil accumulating part accumulates scattered lubricating oil. The second oil accumulating part is mounted to an end of an output shaft below the first oil accumulating part, and accumulates the lubricating oil from the first oil accumulating part. The communication oil path allows the first and second oil accumulating parts to communicate with each other. The horizontal hole extending axially is formed in the rotary shaft, and communicates with the second oil accumulating part. The vertical hole communicating with the horizontal hole is formed in the output shaft, and directs the lubricating oil accumulated in the second oil accumulating part to the lubricated part when the output shaft is rotated at a rotational speed lower than a predetermined rotational speed. | 12-12-2013 |
20140020984 | Transmission System - A transmission system includes a housing having a sump, the housing containing a crown wheel and a pinion. The transmission system further includes an oil reservoir and a pump selectively operable to pump fluid from the oil reservoir to the sump for lubricating the crown wheel. The pump is selectively operable to pump fluid from the sump to the reservoir. | 01-23-2014 |
20140048354 | LUBRICATION SYSTEM AND METHOD FOR REDUCING DIP LUBRICATION POWER LOSS - Energy loss in a dip lubrication system is reduced by reducing the immersion depth of the gear within a pool of oil. This can be accomplished by increasing the pressure within the dip lubrication system which effectively reduces the flow rate of the oil so that the oil remains separated from the oil pool for a longer period of time thereby reducing the oil level and the immersion depth of the gear within the oil pool. Alternately, this can be accomplished by substituting a higher density gas for air which has the same effect. In a third embodiment the immersed gear includes wind vanes that direct air against the oil pool creating a trough which effectively reduces the immersion depth of the gear within the oil pool. | 02-20-2014 |
20140054114 | LUBRICATING OIL SUPPLY DEVICE OF POWER TRANSMISSION DEVICE - A lubricating oil supply device of a power transmission device includes: a storage portion configured to store lubricating oil; a first rotary member configured to be connected to a wheel of a vehicle and rotated in conjunction with a rotation of the wheel to send the lubricating oil of the storage portion; a second rotary member configured to be disposed above the first rotary member in a vertical direction and connected to the wheel; an oil receiving portion configured to be disposed above the first rotary member and the second rotary member in the vertical direction; a first passage configured to guide the lubricating oil, which is sent by the rotation of the first rotary member, to the oil receiving portion; and a second passage configured to guide the lubricating oil, which is sent by the rotation of the first rotary member, to the second rotary member. | 02-27-2014 |
20140076662 | Gearbox Lubrication - A helicopter tail rotor gearbox including a housing, an output shaft for connection to a tail rotor rotatably supported in the housing and having an open end therein, an input member rotatably supported in the housing, gearing providing a power transmitting connection between the input member and output shaft, a pitch control shaft for effecting a change in the pitch of the tail rotor, the pitch control shaft being disposed at least partially within the output shaft, rotatable therewith, and movable relative thereto along the rotational axis of the output shaft, an actuating member for effecting axial movement of the pitch control shaft, the actuating member being movable axially of the output shaft but held against rotation therewith, and a bearing assembly positioned in between the pitch control shaft and the actuating member for permitting relative rotation therebetween, wherein the gearbox includes at least one formation for diverting oil, dispersed within the housing in use, towards the open end of the output shaft. | 03-20-2014 |
20140097044 | SECONDARY LUBRICATION SYSTEM WITH INJECTABLE ADDITIVE - A lubrication system includes an additive and a delivery system. During normal operational conditions, the lubricating oil circulating in the transmission system is collected and contained in a secondary oil reservoir to retain a quantity of the lubricating oil for use in an oil-out condition. When an oil-out condition is detected, the additive is injected and mixed with the collected lubricating oil in the secondary oil reservoir or dispersed directly into a power transmission gearbox housing to enhance the characteristics of the lubricating oil and increases the operational time period of the power transmission gearbox during an oil-out condition. | 04-10-2014 |
20140116807 | LUBRICANT MANAGEMENT SYSTEM - A lubricant management system for a vehicle is provided. The lubricant management system includes a housing, a power transmitting component, and a valve. The housing defines a lubricant passage therethrough. The power transmitting component is rotatingly disposed in the housing. The valve is at least partially disposed in the lubricant passage and has a first position and a second position. The valve in the first position militates against a flow of lubricant from a first portion of the housing to a second portion of the housing and the valve in the second position facilitates the flow of lubricant from the first portion of the housing to the second portion of the housing. The lubricant management system varies an amount of lubricant used in a sump of the housing in a simple and cost effective manner. | 05-01-2014 |
20140124297 | PRESSURIZED RESERVE LUBRICATION SYSTEM FOR A GAS TURBINE ENGINE - A lubrication system includes a control subsystem operable to selectively communicate lubricant under gas pressure from a pressurized reserve lubricant tank in response to a prolonged reduced-G condition. | 05-08-2014 |
20140166402 | LUBRICATING DEVICE OF AUTOMATIC TRANSMISSION - A lubricating device of an automatic transmission includes a partitioning member that partitions an oil chamber, to which a lubricating oil of a first oil chamber is introduced; a second oil chamber partitioned by the partitioning member and to which lubricating oil to supply to a forward clutch is introduced; and a third oil chamber partitioned by the partitioning member and to which lubricating oil to supply to a pinion unit such as a pinion gear coupled with one engagement unit of the forward clutch is introduced; wherein a clutch oil path that introduces the lubricating oil of the first oil chamber to the second oil chamber and a pinion oil path that introduces the lubricating oil of the first oil chamber to the third oil chamber are formed in a clutch drum interposed between the first oil chamber and the oil chamber. | 06-19-2014 |
20140174856 | LUBRICATION DEVICE OF POWER TRANSMISSION DEVICE FOR HYBRID VEHICLE - A lubrication device for a hybrid vehicle power transmission device including a gear member, a first electric motor, and a second electric motor within a transaxle case, the lubrication device includes: a first pipe supplying oil forcibly transferred from an oil pump to the second electric motor; an oil passage branched from the first pipe; a first catch tank supplied with oil from the oil passage; a second pipe connected to the first catch tank to supply oil accumulated in the first catch tank to the first electric motor; an oil flow outlet disposed in the first catch tank and located above the second pipe; and a second catch tank disposed vertically beneath the first catch tank to receive oil outflowing from the oil flow outlet. | 06-26-2014 |
20140231174 | VEHICLE DRIVE DEVICE - A vehicle drive device having a rotating electrical machine, a speed change mechanism, and a case that accommodates the rotating electrical machine speed change mechanism. A first oil storage portion is provided so as to communicate with the speed change mechanism accommodating space. A hydraulic pump that supplies the oil in the first oil storage portion to the speed change mechanism and the rotating electrical machine. A second oil storage portion provided so as to communicate with the rotating electrical machine accommodating space. A discharge oil passage discharges the oil in the second oil storage portion to the first oil storage portion. The discharge oil passage includes a first opening that opens toward the first oil storage portion, and the first opening is provided so that its lower end is located above an oil level in the first oil storage portion during rotation of the hydraulic pump. | 08-21-2014 |
20150060207 | LUBRICATING APPARATUS FOR ROTATING SHAFT - A lubricating apparatus includes a rotating shaft disposed horizontally; a supporting wall supporting the rotating shaft with a bearing; an oil chamber surrounded by the supporting wall and the rotating shaft; an oil passage which extends within the rotating shaft and is communicated with lubricating portions; an oil intake portion for taking and supplying the oil to the oil chamber; and a plurality of guide ribs formed in the supporting wall, wherein the guide ribs are adapted to form at least two oil flow paths from a radially-outer portion of the oil chamber toward a center portion of the chamber. | 03-05-2015 |
20150114757 | LUBRICATION STRUCTURE FOR DIFFERENTIAL DEVICE - An opening end of an inboard section includes: an end surface composed of a plane positioned farthest from the center of a differential device in the axial direction and perpendicular to the axial direction; a ledge positioned adjacent to the end surface in the circumferential direction of the opening end and closer to the center than the end surface in the axial direction; and a tapered section in a slope shape formed continuing to the inner diameter side of the ledge at the opening end, slanting toward the inner diameter side of the opening end and approaching the center. Lubricating oil supplied to the opening end of the inboard section flows to the tapered section via the ledge and flows from the tapered section into a spiral groove formed on an inner periphery of the inboard section. | 04-30-2015 |
20150114758 | METHOD AND DEVICE FOR PREVENTING EXCESSIVE WEAR IN GEAR ASSEMBLIES - METHOD AND DEVICE FOR PREVENTING EXCESSIVE WEAR IN GEARS, involving lubricating the contact point between the wheels ( | 04-30-2015 |
20150122582 | OIL RESERVOIR STRUCTURE OF TRANSMISSION - An inclined surface inclined such that a portion thereof farther away from an oil injection port becomes lower is formed in an inner wall of an oil reservoir which faces a tip end of an oil injection gun to be inserted into the injection port, such that oil to be discharged by the injection gun is guided by the inclined surface toward a bottom portion of the reservoir. Accordingly, the oil to be discharged by the injection gun is prevented from splashing back from the inner wall of the reservoir, which faces the tip end of the injection gun, and blowing back out from the injection port in a simple structure, and smooth oil injection work is thereby enabled. Additionally, it is possible to prevent a situation where a worker erroneously recognizes that the injection work of the oil is completed, and an amount of the injected oil is insufficient. | 05-07-2015 |
20150308559 | TRANSMISSION APPARATUS - A transmission apparatus comprises a case, a gear transmission housed in the case, an intra-shaft oil passage formed in a rotating shaft, an oil supplying passage for supplying oil to the intra-shaft oil passage, a guide plate faced to one end surface of a gear with a predetermined distance in an axial direction of the gear which is dipped into the oil in the case: and an oil passage formed between the one end surface and the guide plate, and the oil passage is extended along to outer-periphery of the one end surface. | 10-29-2015 |
20150316142 | Transmission for Motor Vehicle and Method of Pumping Transmission Fluid Through the Transmission - A transmission for a motor vehicle includes an input shaft, a transmission pump, a transmission sump and a pump-driving element, which is preferably a drive gear. The drive gear and the transmission pump are located in the transmission sump. Power is transmitted from the input shaft to the transmission pump through the drive gear. In a preferred embodiment, power is transmitted from the input shaft to the drive gear through at least one gear, and from the drive gear to the transmission pump through a pump shaft. The drive gear is preferably at least partially enclosed by a shroud, coupled to the transmission pump, in order to separate the drive gear from transmission fluid located in the transmission sump and thereby reduce drag on the drive gear. The shroud preferably also includes a discharge port so that transmission fluid located in the shroud is expelled through the discharge port when the drive gear rotates. | 11-05-2015 |
20150337946 | GEAR UNIT AND A METHOD FOR HEATING LUBRICANT OIL OF A GEAR UNIT - A gear unit comprises shafts ( | 11-26-2015 |
20150345616 | GEARBOX FOR A MOTOR VEHICLE - A gearbox for a motor vehicle. The gearbox comprises at least one fluid supply system. The fluid supply system comprises at least one pump. The fluid supply system comprises at least one fluid sump. The fluid supply system comprises at least one fluid reservoir. The fluid reservoir comprises at least a first fluid outflow leading into the fluid sump. The first fluid outflow can be controlled as a function of a state variable. | 12-03-2015 |
20150362060 | LUBRICATION SYSTEM FOR TRANSMISSION - A lubrication system for a transmission includes a first tubular portion, a second tubular portion, and a hollow cylindrical member. The first tubular portion has a cavity and includes a flange at one end adjacent to a gear shaft of the transmission. The first tubular portion has a first enlarged-diameter part extending in an axial direction from a joint at which the first tubular portion is joined to the second tubular portion. The second tubular portion has a second enlarged-diameter part that extends in the axial direction from the joint and has a diameter substantially equal to a diameter of the first enlarged-diameter part. The hollow cylindrical member is disposed in the first and second tubular portions and tightly fitted in the first and second enlarged-diameter parts of the first and second tubular portions joined to each other. | 12-17-2015 |
20160003345 | FOREIGN MATTER ATTRACTING STRUCTURE - A foreign matter attracting structure includes: an attracting body for attracting foreign matter in lubricating oil, wherein the attracting body includes a magnet and a capturing body which is composed of a weakly magnetic material, and the capturing body is disposed at a position which is magnetized by a magnetic force of the magnet. | 01-07-2016 |
20160023622 | EXTERNAL LUBE SYSTEM FOR A TRANSMISSION - The present disclosure is related to a transmission for a powered vehicle. The transmission includes a housing defining an interior of the transmission and a fluid supply portion disposed in the housing. The fluid supply portion is configured to supply fluid throughout the transmission. The transmission also includes a first fluid circuit disposed within the housing and defining a first fluid path in fluid communication with the fluid supply portion. A second fluid circuit fluidly defines a second fluid path in fluid communication with the fluid supply portion. The transmission further includes a coupling mechanism for fluidly coupling the first fluid circuit and second fluid circuit, wherein the second fluid circuit is disposed outside the housing of the transmission. | 01-28-2016 |
20160025205 | TRANSMISSION LUBRICATION SYSTEM AND APPARATUS - A manifold for distributing lubricant in a transmission includes an inlet supply nozzle for receiving transmission lubricant, and a main body in fluid communication with the supply nozzle. The main body defines a channel having open side. The manifold also includes a cover connected to the main body at the open side that creates a fluid seal along an edge of the channel. A first port extends from the main body for dispersing lubricant in a solid stream spray pattern onto traction components of the transmission. A second port extends from the main body for dispersing lubricant in a fan spray pattern onto traction components of the transmission. The manifold also includes an exhaust nozzle to discharge lubricant from the manifold for recirculation within the transmission. | 01-28-2016 |
20160061313 | OIL SUCTION DEVICE FOR VEHICLE - An oil suction device including a primary suction port installed at an inflow end of a thin pipe for sucking oil in an oil storing section, and a third suction port formed in a gap between a first tapered surface and a second papered surface due to a relative movement of the thin pipe to the thick pipe. At a suction pressure of the oil pump less than a predetermined pressure, the oil suction device sucks only oil from the primary suction port, and at a suction pressure of the oil pump equal to or more than the predetermined pressure, air is sucked from the third suction port formed in a gap between the first tapered surface and a second tapered surface due to the relative movement of the thin pipe to the thick pipe. | 03-03-2016 |
20160069446 | Lubrication System for a Gear Box and Associated Methods - A lubrication system for a gear box has a backing member. The backing member is configured to allow mounting of a plurality of lubrication components on the backing member. One of the lubrication components comprises a pump configured to pressurize lubricating oil for the lubrication system. The pump has a suction and discharge. The pump suction is removably connectable to the gear box and the pump discharge is removably connectable to piping that is configured to communicate with the gear box. The backing member has a lifting mount arranged along its length and width that corresponds to a center of gravity of the backing member with the lubrication components mounted thereto. The lubrication components are modular and may be replaced and installed as necessary on the backing member. Multiple like lubrication systems may be provided, and removed and installed on the gear box as needed for maintenance. | 03-10-2016 |
20160084369 | LUBRICATION SYSTEM WITH PASSIVE VALVE - In one example embodiment, a valve can include a piston configured to open the valve when a first force is greater than a second force, a biasing member that pushes against the piston and exerts a substantial portion of the first force against the piston, and a material that exerts a substantial portion of the second force against the piston, wherein the material changes from a solid to a liquid at an approximate, predetermined temperature, the change of the material from solid to liquid decreases the second force and allows the piston to move and open the valve. | 03-24-2016 |
20160091080 | TRANSMISSION LUBRICATION SYSTEM - A manifold for distributing lubricant in a transmission includes an inlet supply nozzle, a first body portion and a second body portion. The inlet supply nozzle receives transmission lubricant. The first body portion is in fluid communication with the supply nozzle and defines a first channel having a first open side along the first channel. The second body portion is in fluid communication with the supply nozzle and defines a second channel having a second open side along the second channel. The first and second body portions connect to form an assembled body in an assembled position such that the first and second channels collectively define a main tubular passage. A plurality of outlet ports can extend from the assembled body for dispersing lubricant from the main tubular passage across traction components of the transmission. | 03-31-2016 |
20160102751 | COUPLING AND A METHOD OF USING THE SAME - A fluid transfer coupling includes a first and second shaft assembly. The first shaft assembly includes a shaft and annular fin attached to shaft, annular fin having one or more internal passages extending therethrough. The or each internal passage connects a centre portion of shaft to a radially outwardly facing side of annular fin. The second shaft assembly includes a shaft and annular trough extending radially outwardly of shaft. The first shaft is concentrically accommodated within second shaft with annular fin being accommodated within annular trough. In use, first shaft assembly rotates at a first rotational speed and second shaft assembly rotates at a second rotational speed, with second rotational speed being greater than first rotational speed. The difference between second and first rotational speeds cause a fluid contained within annular trough to be driven radially inwardly through the or each internal passage to centre portion of first shaft. | 04-14-2016 |
20160200413 | LUBRICATION FOR MARINE DRIVE SYSTEMS | 07-14-2016 |