Planetary gear transmission systems or components inventions 01/08

20080026898 - Powertrain for a hybrid vehicle with all-wheel drive capability and method for controlling wheel slip: A hybrid-electric powertrain and control method for a vehicle having forward traction wheels and rearward traction wheels in an all-wheel drive configuration. An engine and an electric motor deliver power through delivery paths to the traction wheels. The power delivery paths may have multiple ratio gearing so that more power... Agent: Brooks Kushman P.C./fgtl

20080026899 - Drive train for a tractor: A drive train for use with a tractor having an engine includes a transmission module having an input side coupled to the engine and an output side. The output side is rotatable in response to rotation of the input side to define a transmission speed ratio. A differential module includes... Agent: Michael Best & Friedrich LLP

20080026900 - Differential gear: A differential gear includes first and second differential mechanisms that are compact in radial and axial directions, the first and second differential mechanisms 5 and 7 arranged side by side along an axis of rotation in a center casing 3 that is rotatably supported, the differential gear 1 configured to... Agent: Jordan And Hamburg LLP

20080026901 - Automatic torque-switching apparatus: In an automatic torque-switching apparatus (1), a fixed member (12) of a reduction device (8) is attached to an apparatus housing (2) via a one-way clutch (9) so as to not rotate in the direction of torque acting on the fixed member from the load side. A rotational input member... Agent: Buchanan, Ingersoll & Rooney PC

20080026902 - Wind turbine drive assembly: A wind turbine (WT) is disclosed, wherein the rotor hub (1) transmit the driving torque to a planet carrier (5) of a planetary type gear transmission and a main bearing (9) attached to the supporting structure (3), such as the nacelle (N), takes up the transversal shear stresses and bending... Agent: Cantor Colburn, LLP

20080020885 - Transmission shift mechanism having insert molded crank arm: A transmission shift mechanism for use with a vehicle transmission. The transmission shift mechanism includes a user-operated selector and a sub-assembly operably disposed between said user-operated selector and the vehicle transmission. The sub-assembly includes a torque-transfer member having a first portion and a second portion wherein the first portion is... Agent: Michael D. Smith Delphi Technologies, Inc.

20080020886 - Hydraulic control system of 7-speed automatic transmission for vehicles: A hydraulic control system applicable to a power train of a seven-speed automatic transmission for a vehicle having six friction members. Enhanced overall performance is achieved by minimization of shift shock and an enhancement of fuel consumption as a consequence of achieving precise and effective control.... Agent: Morgan, Lewis & Bockius LLP (sf)

20080020887 - Drive pulleys: A drive pulley for a cooling pump or the like of an .engine includes an input (14) for connection to the engine and an output comprising a hollow cylindrical member (4), whose outer surface (6) constitutes a pulley belt engagement surface. The input and output are connected by a transmission... Agent: Reed Smith, LLP Attn: Patent Records Department

20080020888 - Producing and maintaining a desired bearing preload in a differential mechanism: An apparatus for producing a preload in a differential mechanism includes a housing formed with a first screw thread, a component located in the housing and for supported in revolution about a first axis on the housing by a bearing. A nut includes a second screw thread engaged with the... Agent: Macmillan, Sobanski & Todd, LLC

20080020889 - Power train of automatic transmission: A power train of an automatic transmission includes a Ravigneaux planetary gear set having a Ravigneaux ring gear, which always acts as an output member; a Ravigneaux planet carrier; and first and second Ravigneaux sun gears. The power train further includes a simple planetary gear set including an input member... Agent: Morgan, Lewis & Bockius LLP (sf)

20080020890 - Power train of automatic transmission: A power train of an automatic transmission with eight forward speeds and two reverse speeds includes: a speed reduction unit including a first variable input member connected to an input shaft via a first clutch, first and second variably stopped members connected to a transmission case, and a reduced speed... Agent: Morgan, Lewis & Bockius LLP (sf)

20080020891 - Engine arrangement: In a contra rotating propeller engine propeller blade assemblies are provided which rotate in opposite directions as a result of association with an epicyclic gear assembly acting as a differential gearbox. A carrier is provided to drive one propeller blade assembly. Actuators are provided to cause pitch angle adjustment of... Agent: Oliff & Berridge, PLC

20080015073 - Electrically variable transmission having three planetary gear sets: The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including three or four differential gear sets, a battery, two electric machines serving interchangeably as motors or generators, seven or eight selectable torque-transfer devices and possibly a dog clutch. The selectable torque transmitting devices... Agent: General Motors Corporation Legal Staff

20080015074 - Unknown: The multi-speed transmission has rotatable shafts, planetary gearsets (RS1, RS2, RS3, RS4) and shifting elements (A, B, C, D, E). Carrier (ST4) of gearset (RS4) and the input shaft couple as shaft (1). Carriers (ST2, ST3) of respective gearsets (RS2, RS3) and the output shaft (AB) couple as shaft (2).... Agent: Davis Bujold & Daniels, P.l.l.c.

20080015075 - Multiple rear drive axles with common gearing: A multiple rear drive axle system for a vehicle includes a first axle coupled with a drive shaft from a transmission of the vehicle. The first axle includes a first cantilevered input pinion mechanically coupled with the drive shaft and with a first driven gear. The system also includes an... Agent: Volvo Technology Of America, Corporate Patents

20080015076 - Differential device: A differential device for differentially distributing a driving force to axles along an axis is disclosed. The differential device has a case being capable of rotation about the axis, which includes a flange configured to receive the driving force and a shaft crossing the case perpendicularly to the axis; an... Agent: Morrison & Foerster, LLP

20080015077 - Multi-stage transmission: The multi-speed transmission has shafts, planetary gearsets (RS1, RS2, RS3, RS4) and shifting elements (A, B, C, D, E). Carrier (ST4) of gearset (RS4) and the input shaft couple as shaft (1). Carrier (ST3) of gearset (RS3) and the output shaft couple as shaft (2). Sun gears (SO1, SO4) of... Agent: Davis Bujold & Daniels, P.l.l.c.

20080015078 - Multi-speed transmission: The transmission with one reverse and seven forward gears has input and output shafts, three planetary gear sets (P1, P2, P3), six shafts, and six shifting elements. The input shaft couples the ring gear of set (P1) and detachably couples shaft (5), which couples the spider of set (P3) and... Agent: Davis Bujold & Daniels, P.l.l.c.

20080015079 - Multi-speed transmission: The multi-speed transmission with one reverse and seven forward gears has input and output shafts, three planetary gear sets, six shafts and six shifting elements. The input shaft couples the sun gear of gear set (P2) and detachably couples shaft (5), which couples the carrier of gear set (P3), and... Agent: Davis Bujold & Daniels, P.l.l.c.

20080015080 - Multi-speed transmission: A multi-speed transmission which has shafts, planetary gearsets (RS1, RS2, RS3, RS4) and shifting elements (A, B, C, D, E). Carrier (ST4) of gearset (RS4) and the input shaft couple as shaft (1). Carrier (ST3) of gearset (RS3) and the output shaft couple as shaft (2). Sun gears (SO1, SO4)... Agent: Davis Bujold & Daniels, P.l.l.c.

20080015082 - Electrically variable transmission having three planetary gear sets and two fixed interconnections and a stationary interconnection: The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first, second and third differential gear sets, a battery, two electric machines serving interchangeably as motors or generators, and six selectable torque-transfer devices, which may include a dog clutch. The selectable torque transfer... Agent: General Motors Corporation Legal Staff

20080015081 - Multi-speed transmission: The transmission includes input and output shafts, gearsets (RS1, RS2, RS3, RS4), shafts (1, 2, 3, 4, 5, 6, 7, 8), and elements (A, B, C, D, E). A carrier of gearset (RS4) couples the input shaft forming shaft (1). A carrier of gearset (RS3) couples the output shaft forming... Agent: Davis Bujold & Daniels, P.l.l.c.

20080015083 - Six-speed power train of automatic transmission for vehicle: A six-speed power train of an automatic transmission for a vehicle includes: a first, double pinion planetary gear set including a first operational element always operating as an input element, a second operational element selectively operating as an output and a fixed element, and a third operational element selectively operating... Agent: Morgan, Lewis & Bockius LLP (sf)

20080009380 - Hybrid drive apparatus: A hybrid drive apparatus that includes an input shaft that is connected to an engine; an output shaft that is connected to wheels; a first rotary electric machine; a second rotary electric machine; a first planetary gear apparatus that has at least three rotating elements; a second planetary gear apparatus... Agent: Oliff & Berridge, PLC

20080009379 - Transmission unit for a motor vehicle and control method therefor: A transmission unit for a motor vehicle has a drive shaft for a connection to an internal combustion engine of the motor vehicle, an output shaft for the driving of the motor vehicle, a change speed gearbox, an additional drive motor and a planetary transmission, with the additional drive motor... Agent: Harness Dickey And Pierce PLC

20080009381 - Differential device for vehicle: A differential device for a vehicle includes a differential casing 15, pinion shafts 25, 27 connected to through-holes of the differential casing 15, pinion gears 3 supported by the pinion shafts 25, 27, a differential mechanism 9 having side gears 5, 7 meshing with the pinion gears 3, a limited-slip... Agent: Morrison & Foerster, LLP

20080009382 - Multi-speed transmission: A multi-speed transmission has input and output shafts, gearsets (RS1, RS2, RS3, RS4), shafts (1, 2, 3, 4, 5, 6, 7, 8), and shifting elements (A, B, C, D, E). A carrier of gearset (RS4) and the input shaft couple as shaft (1). A carrier of gearset (RS3) and the... Agent: Davis Bujold & Daniels, P.l.l.c.

20080009383 - Power train of automatic transmission: A power train of an automatic transmission that realizes seven forward speeds and two reverse speeds includes a first planetary gear set a second planetary gear set; a third planetary gear set an input shaft; an output gear; and a transmission case. A third planet carrier is fixedly connected to... Agent: Morgan, Lewis & Bockius LLP (sf)

20080009384 - Multi-speed transmission: A multi-speed automatic planetary transmission for a motor vehicle having an input shaft (AN), an output shaft (AB), four planetary gearsets (RS1, RS2, RS3, RS4), at least eight rotatable shafts (1, 2, 3, 4, 5, 6, 7, 8), and five shifting elements (A, B, C, D, E), the selective engagement... Agent: Davis Bujold & Daniels, P.l.l.c.

20080009385 - Multi-speed transmission: A transmission with planetary gearsets (RS1, RS2, RS3, RS4), shafts and shifting elements (A, B, C, D, E). A carrier of gearset (RS2) and the input forming shaft (1). A carrier of gearset (RS3) and the output forming shaft (2). Sun gears of gearsets (RS1, RS4) couple and forming shaft... Agent: Davis Bujold & Daniels, P.l.l.c.