Planetary gear transmission systems or components inventions 02/08

20080051242 - Variable speed accessory drive system for a hybrid vehicle: The present invention provides an accessory drive system for a hybrid vehicle. The accessory drive system includes a planetary gear set having a first, second, and third planetary member. A torque transfer device operatively connects an engine with the first planetary member. A motor/generator is operatively connected to the second... Agent: General Motors Corporation Legal Staff

20080051243 - Variable ratio gearmotor with interactive ratio control: A variable ratio gearbox is combined with a drive motor and an interactive control system. A coaxial shaft connects to a differential gear set to power an output shaft. The transmission has a drive shaft with an inner shaft and an outer shaft. A friction disk nonrotatably mounts to said... Agent: Christopher J. Mcdonald Hoffman, Wasson & Gitler, P.C.

20080051245 - Differential case for vehicle and differential device for vehicle: The differential case or the differential device for the vehicle comprises a pair of pinion gear supporting portions 10, 11 supporting slidably a pair of pinion gears 3, 4, and a lubrication oil introducing portion 7, 8 provided around a peripheral portion of the pair of pinion gears 3, 4... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080051244 - Differential gear for vehicle and assembling method of the same: A differential gear 1 for a vehicle comprises a differential case 2 having a pair of holes 9R, 9L for drive shafts, a pair of pinion gears 3, 4 supported by pinion gear supporters 10, 11 and a pair of side gears 5R, 5L engaging with the pinion gears 3,... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080051246 - Multi-speed transmission: A multi-speed transmission with six forward gears and one reverse gear comprises an input shaft (1), an output shaft (2), three planetary gearsets (P1, P2, P3), six rotatable shafts (1, 2, 3, 4, 5, 6) as well as five shifting elements (03, 04, 14, 36, 46), wherein the input shaft... Agent: Davis Bujold & Daniels, P.l.l.c.

20080051247 - Multispeed power tool transmission: A method for operating a portable power tool having a multi-stage, three-speed transmission.... Agent: Harness, Dickey & Pierce, P.L.C

20080045365 - Hybrid architecture incorporating three motor generators and brakes: The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first and second differential gear sets, a battery, three electric machines serving interchangeably as motors or generators and up to three brakes. The three motor/generators are operable in a coordinated fashion to yield... Agent: General Motors Corporation Legal Staff

20080045366 - Hybrid electric vehicle and powertrain: A hybrid electric vehicle and powertrain includes an engine and an electric machine connected to each other in a power-split arrangement. The electric machine is operable as a motor or a generator, and is offset from the engine, thereby reducing the overall length of the powertrain. A power transfer arrangement... Agent: Brooks Kushman P.C./fgtl

20080045367 - Transmission for coupling a starter-generator electrical machine to an internal combustion engine: A transmission for coupling a starter-generator electrical machine to an internal combustion engine and having a transmission ratio that is a function of the rotational speed of the internal combustion engine. The ratio of the rotational speed of the electrical machine to that of the internal combustion engine can be... Agent: Alfred J Mangels

20080045368 - Power transmission device: A power transmission device is provided with a gear mechanism, a case, an oil pump and an oil tank. The gear mechanism is arranged to operate in coordination with a drive source. The case houses the gear mechanism and stores oil for lubricating the gear mechanism. The oil pump is... Agent: GlobalIPCounselors, LLP

20080045369 - 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 space are each put... Agent: Squire, Sanders & Dempsey L.L.P.

20080045370 - Dual torque path transmission with switchable radially displacing one-way clutch and fluid coupling brake: The present invention broadly comprises a transmission for a vehicle, including two dual planetary gearsets arranged to transmit torque, independent of each other, from an input shaft for the transmission to an output for the transmission. In a gear for the transmission, one of the dual gearsets is arranged to... Agent: Simpson & Simpson, PLLC

20080045371 - Axle assembly with electronic locking differential: An axle assembly with an electric locking differential that can include a one-piece differential case and a locking device. The locking device includes a dog that is nonrotatably but axially slidably received into a pocket that is formed in an end of the differential case. An actuator is mounted on... Agent: Harness, Dickey & Pierce, P.L.C

20080045372 - Stepped automatic transmission: A multi-stage automatic transmission comprises a drive input shaft (AN), a drive output shaft (AB), a double planetary transfer gearset (VS), a main gearset (HS) made as a coupled planetary gearset with at least three non-coupled input elements and one output element, and six shift elements (A to F), which,... Agent: Davis Bujold & Daniels, P.l.l.c.

20080045373 - Multi-speed countershaft transmission with a planetary gear set: A transmission is provided that combines first and second countershafts with a planetary gear set, and uses first and second head gear sets to provide ratio. Each of the countershafts supports gears in no more than five co-planar, intermeshing gear sets (and in most embodiments no more than four co-planar,... Agent: General Motors Corporation Legal Staff

20080045374 - Gear bearing drive: A gear bearing drive provides a compact mechanism that operates as an actuator providing torque and as a joint providing support. The drive includes a gear arrangement integrating an external rotor DC motor within a sun gear. Locking surfaces maintain the components of the drive in alignment and provide support... Agent: Weingarten, Schurgin, Gagnebin & Lebovici LLP

20080045375 - Modular gear bearings: A gearing system using modular gear bearing components. Each component is composed of a core, one or more modules attached to the core and two or more fastening modules rigidly attaching the modules to the core. The modules, which are attached to the core, may consist of gears, rollers or... Agent: Nasa Goddard Space Flight Center

20080039258 - Hybrid architecture incorporating three interconnected gear sets and brakes: 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, three electric machines serving interchangeably as motors or generators and at least one brake operable to enable series hybrid reverse operation. The three motor/generators... Agent: General Motors Corporation Legal Staff

20080039259 - Hybrid powertrain: A powertrain is provided, comprising: an internal combustion engine and an electro-mechanical transmission. The internal combustion engine has two torque output nodes operatively connected to two torque input nodes of the electro-mechanical transmission. The transmission comprises first and second electrical machines operatively connected to first and second planetary gear sets... Agent: General Motors Corporation Legal Staff

20080039261 - Power delivery system of hybrid vehicle: A power delivery system of a hybrid vehicle includes: a planetary gear part disposed including a first planetary gear, a second planetary gear, and a third planetary gear; a driving motor/generator part including a first motor/generator connected to the third planetary gear such that a power delivery can be performed... Agent: Morgan, Lewis & Bockius LLP (sf)

20080039260 - Power train for hybrid vehicle: A power train for a hybrid vehicle includes an outer rotor-typed generator motor, disposed adjacent to an engine and concentric with an output shaft of the engine; a first planetary gear set including a sun gear provided to an outer rotor of the generator motor, carriers connected with the output... Agent: Morgan, Lewis & Bockius LLP (sf)

20080039257 - Transmission device with selectable motor connections: A transmission device for a powertrain system comprising a compound planetary gear set having four coaxial elements and a plurality of input nodes and an output node is described. The first input node is connected to an input shaft from an engine. The second input node is connected to a... Agent: General Motors Corporation Legal Staff

20080039262 - Vehicle drivetrain having hydraulic power assist: A drivetrain for use in a mobile vehicle is disclosed. The drivetrain may have a combustion engine with a mechanical output, a ground engaging traction device, and a primary transmission unit. The primary transmission unit may be connected to transmit power from the mechanical output to the ground engaging traction... Agent: Caterpillar/finnegan, Henderson, L.L.P.

20080039263 - Starter alternator accessory drive system for a hybrid vehicle: The present invention provides an alternator starter accessory drive system for a hybrid vehicle. The starter alternator accessory drive system includes a planetary gear set having a first, second, and third planetary member. An engine is operatively connected to the first planetary member, and a first motor/generator is operatively connected... Agent: General Motors Corporation Legal Staff

20080039264 - Power transmission mechanism of model vehicle: A power transmission mechanism of a model vehicle capable of mechanically performing accurate straight running and turning control without relying upon the output characteristic of each drive system in an RC tank having two drive systems. The power transmission mechanism comprises a motor (10) for traveling providing a drive force... Agent: Wenderoth, Lind & Ponack, L.L.P.

20080039265 - Asymmetrical, active axle transmission: Conventional asymmetrical active yaw gears use in this connection two separate brake clutches. This enlarges the construction space and increases the manufacturing costs which the invention avoids in that the planet carrier (17) is part of a first brake coupling (5) and that a second brake clutch (9) for braking... Agent: Stetina Brunda Garred & Brucker

20080039266 - Power train of automatic transmission: n

20080039267 - Power train of automatic transmission:

20080032842 - Powertrain with powersplit pump input and method of use thereof: A powertrain includes an engine operatively connected to a primary power consuming device to transmit power thereto. The powertrain also includes a motor and a pump. The power output of the motor is independent of the power output of the engine. An epicyclic geartrain includes first, second and third members.... Agent: Caterpillar C/o Liell & Mcneil Attorneys PC

20080032843 - Transaxle: A transaxle for a vehicle comprises: an axle; an input shaft disposed perpendicular to the axle; a transmission interposed between the input shaft and the axle; a transaxle casing incorporating the axle, the input shaft and the transmission, the transaxle casing having opposite sides in a direction parallel to the... Agent: Sterne, Kessler, Goldstein & Fox P.l.l.c.

20080032844 - Quasi continuous, positive fit satellite gear mechanism: The invention relates to a continuous, positive fit gear mechanism which can be adjusted in a continuous manner by eccentrically offsetting transmissions between an input and an output. Said gear mechanism comprises an adjusting device which is used to control transmission such that, preferably, eccentric positions are adjusted enabling the... Agent: K.f. Ross P.C.

20080032845 - Multi-speed automatic transmission for motor vehicle: A multi-speed automatic transmission includes an input shaft, a first out put shaft having a first planetary gear set, and a second output shaft having a second planetary gear set. The shafts are in parallel with one another. The input shaft is engageable with the first ring gear and the... Agent: Kazuyoshi Hiraiwa

20080032846 - Multi-group gearbox: A multi-group transmission for a motor vehicle having a main transmission and a range group transmission downstream from the main transmission. The reverse gear is integrated into the range-group transmission.... Agent: Davis Bujold & Daniels, P.l.l.c.

20080032847 - Differential cross member for a differential drive: A differential carrier (11) for a differential drive, which differential carrier (11) is supported so as to be rotatable around its longitudinal axis (A) and which is rotatingly drivable, having two output gears (18, 19) supported in the differential carrier coaxially relative to the longitudinal axis (A), and having four... Agent: Dickinson Wright PLLC

20080032848 - Variable speed transmission for a power tool: A variable speed transmission that changes the output speed of a power tool in response to an increase in torque. The transmission includes a first transmission portion, a second transmission portion, and an annular connector. The annular connector may move via a spring and a control mechanism between a first... Agent: Brinks Hofer Gilson & Lione

20080032850 - Method for producing simple planetary gear device and simple planetary gear device: A method for producing simple planetary gear devices is provided in which minimum backlash is satisfactorily realized and maintained with a fewer number of parts without creating any space-related inconveniences. A dummy carrier pin is used which is provided with a rotation support section whose axis can be moved in... Agent: Squire, Sanders & Dempsey L.L.P.

20080032849 - Thrust bearing assembly for automatic transmission rear planetary: The invention generally relates to the improved performance of the rear planetary gear in an automobile transmission. In particular, the invention relates to a new and improved thrust bearing assembly capable of sustaining performance of the rear planetary under more severe stress, and prolonging its life over much longer periods... Agent: Nixon & Vanderhye, PC

20080032851 - Apparatus and method for strengthening gear teeth: An apparatus and method for increasing the operating life of a rotating gear element including a plurality of outwardly-projecting gear teeth each having an involute profile, with each gear tooth having a pair of flanks and a pair of generally semi-circular root portions. A ring tool having a plurality of... Agent: General Motors Corporation Legal Staff