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| Number | Title | Issue Date |
| 8187133 | Fatigue resistant transverse lubrication passage for transmission shafts A lubrication system for transporting lubrication oil in an automatic transmission includes a radial lubrication passage opening at a hole in an outer peripheral surface of a shaft. The hole has a cross section that is elongated only along a first axis offset from a... | 05/29/2012 |
| 8167756 | Lubricating oil supply device for automatic transmission A lubricating oil supply device for an automatic transmission that includes a washer arranged inside the automatic transmission and regulating a movement of an input shaft in the automatic transmission in a shaft direction, wherein the washer includes: an oil recept... | 05/01/2012 |
| 8157690 | Lubrication system for a gearbox and wind turbine The invention relates to a lubrication system for a gearbox with stationary and rotating gearbox parts particularly in a wind turbine. The system includes lubrication distribution means in the stationary and rotating gearbox parts such as lubrication bores and openi... | 04/17/2012 |
| 8128524 | Sheath assembly for a planetary gear A gear train assembly includes a planetary gear set partially submerged in an oil bath and having a plurality of planetary gears mounted on a rotatable carrier. A plurality of sheaths having a hydrodynamic profile are mounted on the carrier to reduce the churning an... | 03/06/2012 |
| 8128525 | Epicyclic gearbox for a wind power installation A first planet stage of an epicyclic gearbox revolves in a gearbox housing and includes a planet support having two interconnected side pieces. Planet gears are borne in the planet support via planet gear bearings and engage a central sun gear shaft and a hollow gea... | 03/06/2012 |
| 8100806 | Travel assembly A travel assembly, for example, suited for arrangement on a vehicle such as a mining dump truck, is provided with a travel motor, a planetary speed reduction mechanism for transmitting rotation of the travel motor at a lower rotational speed, a spindle forming an ax... | 01/24/2012 |
| 8096910 | Travel assembly for dump truck Wheels of a dump truck are each provided with a travel assembly for transmitting an output of an electric motor to the wheel via a reduction gear unit. The travel assembly is provided with a cooling circuit for cooling lube oil. The cooling circuit has an oil cooler... | 01/17/2012 |
| 8033940 | Speed reducer A speed reducer that can fundamentally eliminate the cause of lubricant leakage is provided. A speed reducer that reduces the speed of input rotation includes at least a first space and a second space separated by an oil seal, and the first space and the second spac... | 10/11/2011 |
| 8025601 | Automatic transmission In an automatic transmission, a planetary gear set is disposed adjacently to an end cover and configured such that its inner peripheral face of a carrier is rotatably supported on an outer peripheral face of a boss portion provided at the end cover. A lubricating-oi... | 09/27/2011 |
| 8016707 | Machine tool comprising a rotary transmission leadthrough between the driven gear and the spindle A machine tool gear mechanism (1) such as a spindle gear mechanism, transmits torque from an output shaft (3) of the gear mechanism directly to a spindle (6). The mechanism includes a rotary passage (14) as a device for delivering coolant... | 09/13/2011 |
| 8002660 | Vehicular automatic transmission A vehicular automatic transmission including first and second shafts coaxially splined to each other at their adjacent axial end portions, and a lubrication system including: first and second lubrication passages formed through the respective first and second shafts... | 08/23/2011 |
| 7985154 | Method and apparatus to control hydraulic pressure for component lubrication in an electro-mechanical transmission A method for controlling hydraulic line pressure for component lubrication in a transmission includes monitoring a speed of an engine and an electric machine, determining a minimum line pressure required to lubricate the engine based upon the speed of the engine, de... | 07/26/2011 |
| 7976419 | Control of the flow rate in a transmission oil cooler A system for controlling a flow rate in a vehicle transmission includes a source of fluid exiting a torque converter, an oil cooler, a source of control pressure, and a valve for regulating a rate of fluid flow from the torque converter to the cooler in response to ... | 07/12/2011 |
| 7967712 | Lubrication of a planetary gearset In a planetary gearset and an automatic transmission according to the invention, a pinion shaft on which a pinion gear is rotatably supported includes a bearing portion on which a bearing is attached and a polygonal portion having a polygonal outer periphery. An axi... | 06/28/2011 |
| 7883439 | Oil baffle for gas turbine fan drive gear system A gas turbine engine includes an epicyclic gear train that drives a turbo fan. The epicyclic gear train employs a one-piece carrier in which the spaced side walls are interconnected with circumferentially spaced apart mounts to form a unitary structure. Baffles are ... | 02/08/2011 |
| 7883438 | Lubrication of windmilling journal bearings A support shaft provides lubrication to a journal bearing during windmilling operation of a gear set. A primary oil pump provides oil from an oil supply during driven operation of the fan, and a secondary oil pump provides oil from an internal sump during windmillin... | 02/08/2011 |
| 7850566 | System for transmitting hydraulic pressure A system for transmitting hydraulic pressure in an automatic transmission housed in a transmission case. The system includes a valve body for generating the hydraulic pressure, a first hole unit in the transmission case, and a second hole unit. The first hole unit i... | 12/14/2010 |
| 7832512 | Hybrid vehicle When at least one of a condition under which a parking brake is activated, a condition under which a shift lever is shifted to a parking range, a condition under which a shift to the neutral range is executed, and a condition under which a drive termination operatio... | 11/16/2010 |
| 7815536 | Compact geared drive train A drive train for a wind turbine is provided. The wind turbine includes a rotor connected to a low speed shaft, and a low speed shaft connected to a gearbox. The gearbox has a high speed shaft connected to a generator. The drive train includes a bearing interposed b... | 10/19/2010 |
| 7704178 | Oil baffle for gas turbine fan drive gear system A gas turbine engine includes an epicyclic gear train that drives a turbo fan. The epicyclic gear train employs a one-piece carrier in which the spaced side walls are interconnected with circumferentially spaced apart mounts to form a unitary structure. Baffles are ... | 04/27/2010 |
| 7686727 | Lubrication system for high speed planet gears A lubrication system is provided for a planetary gear train. The system includes an oil supply that disperses oil to a thrust bearing. The thrust bearing purges the oil radially outward. A strategically placed molded cavity collects and channels the oil from the thr... | 03/30/2010 |
| 7662059 | Lubrication of windmilling journal bearings A support shaft provides lubrication to a journal bearing during windmilling operation of a gear set. A primary oil pump provides oil from an oil supply during driven operation of the fan, and a secondary oil pump provides oil from an internal sump during windmillin... | 02/16/2010 |
| 7637834 | Transmission To provide a transmission capable of: reducing horsepower loss by reducing the amount of lubricating oil for a power transmission system including speed gears when the present speed gear is a specified gear of the speed gears; and securing the lubricating oil amount... | 12/29/2009 |
| 7608005 | Planet carrier The invention relates to a planet carrier (1) with planet pins (2) that are supported in at least one wall section (10) of the planet carrier (1), the planet carrier (1) having at least one axial bearing (6) supported on the... | 10/27/2009 |
| 7604558 | Automatic transmission with lubricating structure A piston operating a first clutch is disposed between a first drum accommodating the first clutch and a second drum accommodating a second clutch, and an oil reservoir storing lubricating oil that has lubricated the first clutch is provided on an inner cylindrical s... | 10/20/2009 |
| 7585244 | Sun pinion cover A sun pinion cover for an electric motor driven, off-highway vehicle transmission is provided wherein the transmission defines a hub assembly cavity and a transmission opening and wherein the transmission includes a reduction gear set having a low-speed pinion and a... | 09/08/2009 |
| 7537537 | Planetary gear wheel construction A planetary gear wheel construction with one or several planet wheels which are bearing-mounted on a planet carrier, which is provided in a rotating manner in a housing, and an oil lubrication formed of an oil supply via a ring-shaped channel in the housing formed o... | 05/26/2009 |
| 7494439 | Dual drive pump with dual chain and roller clutch and method A pumping system for a transmission system having a single pump functionally connected to a mechanical power source and an electrical power source is provided. The connections between the pump and the mechanical power source and electrical power source include at le... | 02/24/2009 |
| 7481735 | Transmission having integrated braking device In the transmission, the drive motor is provided on an end of a housing, and a drive device is provided on an opposite end of the housing. An output shaft is provided at a predetermined position in the housing to receive power from the drive motor. A drive shaft is ... | 01/27/2009 |
| 7442142 | Automatic transmission An automatic transmission includes a first brake including first clutch plates; a pump cover defining a first receiving chamber, and a second receiving chamber receiving a planetary gear; a first cylindrical portion including splines; a second cylindrical portion lo... | 10/28/2008 |
| 7422536 | Method and apparatus for cooling and lubricating a bearing device The present invention provides a method and apparatus for cooling and lubricating a pinion bearing of an automatic transmission. The apparatus preferably includes a carrier assembly partially defining a centrifugal compensation oil reservoir. A pinion shaft is suppo... | 09/09/2008 |
| 7416504 | Lubrication plug In an off-highway vehicle having an electric propulsion system which includes a motorized wheel, a traction motor and a transmission for transmitting power from the traction motor to the motorized wheel, wherein the transmission comprises a reduction stage, a low sp... | 08/26/2008 |
| 7404779 | Planetary gear A planetary transmission which has a drive shaft, an axial bearing, an internal gear, an axially displaceable sliding collar and a lubrication circuit and an output shaft which is mounted the transmission housing by an external bearing and an internal bearing. The h... | 07/29/2008 |
| 7399253 | Washer and planetary gear set having the same A washer and a planetary gear set having the same, wherein the washer includes a first washer member and a second washer member. The first washer member is formed at a surface thereof with a plurality of first stepped portions each having a radially extending concav... | 07/15/2008 |
| 7399247 | Sun gear bushing and sleeve and method for sealing in a hybrid electromechanical automatic transmission The present invention details a sleeve and bushing of an electromechanical automatic planetary transmission. The sleeve and bushing operate to confine the desired flow of transmission lubricant through the components of the planetary gear arrangement. Additionally, ... | 07/15/2008 |
| 7396308 | Vehicular drive system A vehicular drive system including a first electric motor, a differential mechanism operable to distribute an output of a drive power source to the first electric motor and a power transmitting member, a second electric motor disposed in a power transmitting path be... | 07/08/2008 |
| 7390277 | Reducer with internally meshing planetary gear mechanism and device incorporating the reducer The device includes a cover coupled to a first flange on the opposite side from an internally meshing planetary reduction gear part. The cover has a hole through which the input shaft of the reduction gear extends. An oil reservoir section is formed between the cove... | 06/24/2008 |
| 7384360 | Thrust washer for a planetary gearbox A thrust washer (9) for planet gears (6) of a planetary gearbox is provided that is made form a tempered, cold rolled strip having a flatness less than or equal to 0.03 mm, and a hardness ranging from 370 to 580 HV. The thrust washer (9) can be ... | 06/10/2008 |
| 7377870 | Planetary gear lubrication unit A planetary gear lubrication unit includes a planetary gear unit having a sun gear and a carrier that has a plurality of pinion shafts, wherein each of the plurality of pinion shafts rotatably supports a pinion, a plurality of side plates that support the plurality ... | 05/27/2008 |
| 7374507 | Lubrication system for differential mechanism A differential assembly includes a housing defining a space containing a volume of hydraulic fluid, the housing including interior surfaces. A gear that rotates in the housing includes surfaces that pass through the fluid as the gear rotates and on which the fluid i... | 05/20/2008 |
