Planetary gear transmission systems or components inventions 03/08

20080070733 - Electrically variable transmission with one or more off-axis motor/generators: The present invention provides an electrically variable transmission for a hybrid vehicle. The electrically variable transmission includes a transmission input shaft defining a first axis of rotation, and a transmission output shaft defining a second axis of rotation. A first motor/generator is operatively connected to the transmission input shaft and... Agent: General Motors Corporation Legal Staff

20080070734 - Hydrostatic-mechanical transmission: A hydrostatic-mechanical transmission has a radial piston motor (1) whose crankshaft (2) drives a spur gear (7) and is mounted at three bearing points (12, 13, 14).... Agent: Davis Bujold & Daniels, P.l.l.c.

20080070735 - Hydrostatic-mechanical transmission: A hydrostatic-mechanical transmission having a radial piston motor (1) with a crankshaft (2) which drives a spur gear (7). A transmission housing comprises three housing portions which define two separate spaces. The spur gear arrangement is located in one of the spaces while the radial piston motor is located in... Agent: Davis Bujold & Daniels, P.l.l.c.

20080070736 - Wheel rotating apparatus and in-wheel motor vehicle: In a wheel rotating apparatus including a motor and a planet gear mechanism to generate a drive force, the planet gear includes first and second gears having different diameters, connected to each other in an axial direction thereof with planet gear shaft. The first gear is inside the stator and... Agent: Birch Stewart Kolasch & Birch

20080070737 - 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 for the transmission system during a shift... Agent: Frishauf, Holtz, Goodman & Chick, PC

20080070738 - Transaxle for a vehicle: A transaxle for a vehicle comprises a transaxle casing; an input shaft housed in the transaxle casing and configured to receive as an input a driving power from an engine of the vehicle; an intermediate shaft housed in the transaxle casing; an axle housed in the transaxle casing and configured... Agent: Alleman Hall Mccoy Russell & Tuttle LLP

20080070739 - Outboard motor: In an outboard motor having a power transmission mechanism for transmitting power of an engine to a propeller, the power transmission mechanism has a transmission ratio changing unit having a planetary gear train including a sun gear, planetary gears, and an internal gear. The internal gear is connected to an... Agent: Knobbe Martens Olson & Bear LLP

20080070740 - Multi-speed transmission: A multi-speed transmission with one reverse and nine forward gears has planetary gear sets, shafts and shifting elements. The input shaft couples the sun gear of gear sets (P2, P3). Shaft (3) couples the carrier of gear set (P2), is connectable to the housing, and shaft (5), which couples the... Agent: Davis Bujold & Daniels, P.l.l.c.

20080070741 - Automatic transmission: There are provided a first planetary gear set including a first sun gear, a first carrier, and a first ring gear; a second planetary gear set including a second sun gear, a second carrier, and a second ring gear; and a third planetary gear set including a third sun gear,... Agent: Brooks Kushman P.C.

20080070742 - Multi-speed transmission: A transmission is disclosed having a planetary gear set with three input torque-transmitting mechanisms, such as friction clutches, to achieve torque flow through the planetary gear set to a countershaft gearing arrangement. The transmission includes an input member, an output member, a planetary gear set, a first, second and third... Agent: General Motors Corporation Legal Staff

20080070743 - Toroidal transmission: A method is provided for optimally engineering a toroidal transmission having a desired input/output ratio to implement the desired ratio of the transmission while meeting the torque and efficiency requirements of the design. Nanoparticle technology is used to manufacture the stator walls to replace the cutting and milling procedures now... Agent: Hamilton, Brook, Smith & Reynolds, P.C.

20080064550 - Hybrid electrically variable transmission with geared reverse mode using single motor/generator: An electrically variable transmission having a single motor/generator provides electrically variable power flow along dual power paths and provides an electrically variable reverse operating mode. The transmission includes a compound differential gear set having at least four gear elements operatively interconnected with one another. A transmission input member and the... Agent: General Motors Corporation Legal Staff

20080064551 - Control method for a transmission device between a heat engine shaft and an axle shaft of a vehicle: The invention essentially relates to a method of controlling a device (1) for the transmission of power between a shaft (2) of a heat engine (3) and an axle shaft (4). The inventive method involves the use of two electric machines (6, 7), namely a first machine having a rotation... Agent: Nicolas E. Seckel Patent Attorney

20080064552 - Differnttal gearing unit with controllable torque and rotational speed distribution: A differential gearing unit with controllable torque and rotational speed distribution, composed of a housing (1), a differential gearing (6), a superposition gearing (7) and an auxiliary drive (8), with the differential gearing (6) comprising an input member (11) which is driven by the vehicle engine, and two output members... Agent: Bachman & Lapointe, P.C.

20080064553 - Offset drive direct ratio gear coupling: Conventional internal gear systems for example planetary gear systems with a small gear ratio of the internal gear to that of the driving pinion, problems include tooth ‘tip’ interference and limited contact between teeth, in conjunction with number of teeth in true positive contact when orbiting. An internal gear system... Agent: Alan R. Newton

20080064555 - Continuously variable transmission: A continuously variable transmission that is highly suitable for use in a large car or light truck vehicle is provided.... Agent: Warn, Hoffmann, Miller & Ozga, P.C.

20080064554 - Twin-clutch transmission system: A twin-clutch transmission system in a power unit for a vehicle includes a clutch system with a pair of hydraulic clutches, which respectively include clutch pistons. A gear transmission includes a first main shaft, which has a first end portion linked to a first one of the two hydraulic clutches.... Agent: Birch Stewart Kolasch & Birch

20080064556 - Multi-speed transmission: The 8-gear transmission comprises an input shaft (AN), an output shaft (AB), four planetary gearsets (RS1, RS2, RS3, RS4), eight rotary shafts (1, 2, 3, 4, 5, 6, 7, 8), and five shifting elements (A, B, C, D, E). A carrier (ST4) of the fourth gearset (RS4) and the input... Agent: Davis Bujold & Daniels, P.l.l.c.

20080064557 - Six-speed automatic transmission with three planetary gearsets: A six-speed automatic transmission for a vehicle includes a transmission housing, an input member, an output member, three planetary gearsets for changing a ratio of torque between the input member and the output member, clutch assemblies to selectively couple the input member to predetermined members of the planetary gearsets, and... Agent: Daimlerchrysler Intellectual Capital Corporation Cims 483-02-19

20080058145 - Electrically variable transmission with a compound motor/generator: An electrically variable transmission has a differential gear set with first, second and third members operatively connected between an input member and an output member. The input member is also operatively connected to an engine for receiving power from the engine. The transmission also includes a compound motor/generator that has... Agent: General Motors Corporation Legal Staff

20080058146 - System and method of controlling a pump system having a clutch and planetary gear assembly: In certain embodiments, a pump system includes a variable output transmission having a rotatable motor coupling, a rotatable pump coupling, a planetary gear assembly disposed between the rotatable motor coupling and the rotatable pump coupling, and a clutch disposed between the rotatable motor coupling and the rotatable pump coupling. The... Agent: Thompson Coburn, LLP

20080058147 - Control device for a hydraulic differential: The present invention relates to a control device for hydraulic differentials in vehicles. The object of the invention is to provide a control device for a hydraulic differential, which eliminates the necessity of wheel base devices for distributing of the driving torque, and of the clutch of the vehicle, at... Agent: The Webb Law Firm, P.C.

20080058148 - Wheel-and-disc drive: A friction drive is provided, in particular for frictionally engaged driving of an auxiliary unit of an internal combustion engine, with an adjustable friction wheel (3), which can be brought into pressure contact with at least one contact disk (4, 6) of a drive element (5) and/or a driven element... Agent: Volpe And Koenig, P.C.

20080058150 - Differential pinion gear having interior circumference for preventing abrasion: A differential pinion gear has a curved interior surface, defining a hole for a pinion shaft to be disposed therein. The hole is narrower at the center and wider at the ends. The interior surface may have a radius of curvature at the center of the hole that is larger... Agent: Morgan, Lewis & Bockius LLP (sf)

20080058149 - Electric damp controlled three-end shaft differential transmission: An electric damp controlled three-end shaft differential transmission including a revolving electro-mechanical installation disposed between both differential output ends to create vortex power generation effects or generator effects in differential operation to output power for producing counter torque damp; or when two revolving electro-mechanical installations being respectively adapted to both... Agent: Bacon & Thomas

20080058151 - Cam gear for mechanical locking differential: An improved differential gear mechanism is characterized by a cam mechanism including a first cam member fixed to rotate with one of said output gears and a second cam member free to rotate relative to said first cam member and said output gear. The first cam member defines a first... Agent: Eaton Corporation Eaton Center