Planetary gear transmission systems or components inventions

20080108468 - Automatic transmission: Each of first and second multi-plate clutches comprises a clutch outer cylinder portion provided to be coaxial with the input shaft and connected with a first or second rotational element, a clutch inner cylinder portion provided to be coaxial with an input shaft, plural clutch plates provided between these cylinder... Agent: Nixon Peabody, LLP

20080108469 - Transmission pump drive: A pump drive for a vehicle transmission pump. A transmission input torque member is operable to carry prime mover torque. A source of pump torque includes a pump input torque member circumscribing the transmission input torque member to apply torque to the transmission pump. An overrunning clutch is interposed between... Agent: Daimlerchrysler Intellectual Capital Corporation Cims 483-02-19

20080108467 - Speed-changing device: A transmission is provided which has a very compact system configuration and is capable of exerting high energy efficiency over all speed regions from a low speed region to a high speed region, while providing improved operability free from a torque shortage. To this end, the transmission has an input... Agent: Frishauf, Holtz, Goodman & Chick, Pc

20080108470 - Superfinishing large planetary gear systems: Disclosed herein is a new improved large planetary gear system used on the input stage of wind turbine power generators. This improved planetary gear system reduces or eliminates lubricant debris traditionally generated from the gear teeth, thereby eliminating an initiating source for bearing failure. To achieve these results, some and... Agent: Howrey LLP

20080108471 - Lubrication ports for a differential housing: Apparatus for transmitting torque in a vehicular differential assembly includes a ring gear surrounding a first axis about which the housing rotates; and a differential housing secured to the ring gear, including a wall surrounding the first axis and formed with a port spaced mutually about the first axis and... Agent: Macmillan, Sobanski & Todd, Llc

20080108472 - Eight-speed powertrain of automatic transmission for vehicle: A eight-speed powertrain of an automatic transmission for a vehicle combining four simple planetary gear set with a plurality of clutches and brakes to realize seventh forward speed or eighth forward speed and two reverse speeds can improve power delivery performance and reduce fuel consumption.... Agent: Morgan, Lewis & Bockius LLP (sf)

20080108473 - Power train of automatic transmission: A power train for an automatic transmission provides seven forward speeds and three reverse speeds. The powertrain includes an input shaft; an output gear; a transmission case; a speed shift unit; an output unit and a series of brakes and clutches for sequentially stopping and connecting input and output members... Agent: Morgan, Lewis & Bockius LLP (sf)

20080108474 - Eight speed powertrain of automatic transmission for vehicle: An eight speed powertrain of an automatic transmission can realize eight forward speed and one reverse speed by combining four planetary gear sets combined by a plurality of clutches and brakes and power delivery performance can be improved and fuel consumption can be reduced.... Agent: Morgan, Lewis & Bockius LLP (sf)

20080103002 - Hybrid electrically variable transmission with dual power paths and selective motor connection: An electrically variable transmission having two motor/generators provides power-split, electrically variable power flow along dual power paths and provides multiple operating modes, including an electrically variable input-split mode. The transmission also includes a differential gear set having five gear elements. A first of the motor/generators is continuously connected to one... Agent: General Motors Corporation Legal Staff

20080103003 - Method and apparatus to control operation of a hydraulic control circuit for an electro-mechanical transmission: A method and an apparatus for controlling an electro-mechanical transmission selectively operative in a plurality of fixed gear modes and continuously variable modes is provided. The exemplary transmission comprises first and second electrical machines and a hydraulic circuit comprising a plurality of pressure control devices and flow management valves. The... Agent: General Motors Corporation Legal Staff

20080103004 - Constant direction pointer device: This device consists of a car body, which further consists of a first wheel and a second wheel; a first angular compensation mechanism which further consists of a first transmission set for transmitting a first torque generated by the first wheel, a second transmission set for transmitting a second torque... Agent: Birch Stewart Kolasch & Birch

20080103006 - Hydromechanical transmission with input summer: A hydromechanical transmission that has first and second planetaries each having first, second and third elements. The first element of the first planetary is connected to a first hydrostatic unit while the second element of the first planetary is connected to a second hydrostatic unit with the third element of... Agent: Zarley Law Firm P.L.C

20080103005 - Steer drive for tracked vehicles: The differential steering drive for a tracked vehicle includes a drive differential interconnecting the drive shafts for the tracks and a steering differential for superimposing additive and subtractive rotations to the tracks for steering and pivot turning. In the preferred embodiment for high speed tracked vehicles, the drive differential is... Agent: Morton A. Polster Brown & Michaels, P.C.

20080103007 - Gyro precessional automatic transmission: An automatic transmission consisting of a planetary gear unit comprising in combination an input shaft (1), an input gear (2), a key planet gear (3), an output gear (4), an output shaft (5), a bearing planet gear (6), a rotating frame (7), a rotor (8), wherein the planet shaft is... Agent: Baker & Daniels LLP

20080103008 - Full traction differential with hybrid gearing: The compact, all-gear full-traction differential includes meshing pairs of side-gear worms and worm-wheel balance gears having a “hybrid” design. Preferably, the teeth of each side-gear worm have an involute profile but are cut with only plunge feed, while the teeth of the worm-wheel portions of the balance gears are helicoid... Agent: Morton A. Polster Brown & Michaels, P.C.

20080103009 - Self-contained torque-coupling assembly: A torque-coupling assembly comprises a shaft member, a fluidly sealed hollow coupling case containing an amount of a hydraulic fluid therewithin and rotatably mounted about the shaft member a friction clutch assembly disposed within the coupling case for selectively engaging and disengaging the coupling case and the shaft member, and... Agent: Berenato, White & Stavish

20080103010 - Electronic differential lock assembly: An electronic differential lock assembly includes a shift collar that is movable in response to an electronic signal from an unlocked position where axle shaft speed differentiation under predetermined conditions is permitted to a locked position where a pair of axle shafts is fixed for rotation together. Speed differentiation is... Agent: Carlson, Gaskey & Olds, P.C.

20080103011 - Steer drive for tracked vehicles: The differential steering drive for a vehicle includes a drive differential and a steering differential. The vehicle includes respective left and right driving traction elements, a propulsion engine with an engine crankshaft, and a steering wheel rotatable by an operator to indicate an intended direction of travel. At least one... Agent: Morton A. Polster Brown & Michaels, P.C.

20080103012 - Gear train of an automatic transmission for a vehicle: An eight speed gear train of an automatic transmission includes first and second planetary gear sets as simple planetary gear sets, a third planetary gear set as a compound planetary gear set, and a plurality of friction members. The first planetary gear set reduces engine speed from an input shaft... Agent: Morgan, Lewis & Bockius LLP (sf)

20080103013 - Multi-step automatic gearbox: A multi-step automatic gearbox comprising a drive shaft (AN), a driven shaft (AB), a double planetary front mounted gearset (VS), a main gearset (HS) which is embodied as a coupled planetary gearset comprising at least three non-coupled input elements and an output element, in addition to six shift elements (A... Agent: Davis Bujold & Daniels, P.l.l.c.

20080103014 - Multi-speed transmission: A multi-speed transmission with reverse and forward gears has input and output shafts, planetary gearsets, six shafts and six shifting elements. The input shaft couples the sun gear of gearset (P2) and detachably couples, via clutches (13, 14), respective shafts (3, 4). Shaft (3) couples the carrier of gearset (P1),... Agent: Davis Bujold & Daniels, P.l.l.c.

20080103015 - Gear train of an automatic transmission for a vehicle: A gear train of an automatic transmission for a vehicle includes first and second shifting sections and a plurality of friction members, wherein: the first shifting section includes first and second simple planetary gear sets forming a first input path for directly receiving an input shaft rotation speed and an... Agent: Morgan, Lewis & Bockius LLP (sf)

20080103016 - Modular planetary gear assembly and drive: An apparatus and method for a planetary gear assembly and drive is provided. The planetary gear assembly and drive has a space index of 60 and includes at least one planet gear with 15 teeth. The gear assembly and drive is capable of employing 1, 2, 3, 4, or 5... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20080103017 - Vehicle transmission: A vehicle transmission includes a crankshaft extending through a seal cover and into an oil-storing end portion of a driven shaft. The oil-storing end portion of the driven shaft defines a lubricating space filled with lubricating oil, and extends into the seal cover. A unidirectional clutch is disposed in the... Agent: Christensen, O'connor, Johnson, Kindness, PLLC

20080096711 - Variable speed accessory drive system: The present invention provides an accessory drive system for a 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 planetary... Agent: General Motors Corporation Legal Staff

20080096712 - Transmission: To provide a transmission capable of using pump/motors or generator/motors of smaller maximum torque and of small size. The transmission includes input shaft (4), output shaft (16), a mechanical transmission part interposed between input shaft (4) and output shaft (16) including planetary gear mechanisms (5), (6), and a hydrostatic transmission... Agent: Frishauf, Holtz, Goodman & Chick, PC

20080096713 - Overdrive and underdrive power converting modulators, and methods: Power converting modulators used with internal combustion engines in driving loads. Such modulator includes an overdrive and/or underdrive mechanism based on a planetary gear assembly. The planetary gear assembly is modulated such that the overdrive or underdrive ratio varies continuously and smoothly with respect to speed of the engine, and... Agent: Wilhelm Law Service, S.c.

20080096714 - 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 windmilling operation of the fan. During... Agent: Carlson, Gaskey & Olds/pratt & Whitney

20080096715 - Tapered roller bearing and differential gear apparatus: An outer peripheral surface of an inner ring extends straight along outer peripheral surfaces of tapered rollers, and is open at a front side of a tapered roller bearing which is a lubricating oil supply side. A smaller-diameter end portion of a cage is cut in a radial direction to... Agent: Mcginn Intellectual Property Law Group, PLLC

20080096716 - Continuously variable transmission: A mechanism that transmits torque and speed of rotation from an input axle to an output axle in a continuously variable way, includes two planetary gear sets arranged along parallel axes, the planetary gears having teeth on the external perimeters of their ring gears (4, 13) that mesh one with... Agent: Young & Thompson

20080090688 - Locker clutch control for a differential mechanism: A motor vehicle driveline that can transmits power in a 4×4 mode includes two front wheels, a rear drive shaft, a differential mechanism for transmitting power to two rear axle shafts connected driveably through the differential to the rear driveshaft, and a clutch for engaging and disengaging a drive connection... Agent: Macmillan, Sobanski & Todd, LLC

20080090689 - Clutch assembly: A clutch consists of transmission gears, pistons, a switch on each piston, and a passive gear; the transmission gears are fitted on a fly wheel; each piston is pivoted to an inner side of a clutch cover at a fixed end, and pivoted to a respective transmission gear at a... Agent: Rosenberg, Klein & Lee

20080090691 - Drive for a vehicle, in particular a lorry: A drive has a drive source with an outgoing drive shaft, which can be connected via a clutch to a first input of a gear, which is formed by an input shaft. The gear also has an output, which is formed by an output shaft. The gear also has a... Agent: Law Offices Of Eric Karich

20080090690 - Variable speed transmission with rotating and orbiting drive gears: The present invention relates to transmission systems and changing gear ratios within power transmission systems. In particular, the present invention relates to a positive displacement variable speed transmission. The transmission includes one or more drive gears which orbit, rotate, and which translate radially to change the size of the orbital... Agent: Workman Nydegger

20080090692 - Transfer case center differential: A torque transfer assembly for use in a motor vehicle having a power source, a first set of wheels and a second set of wheels. The torque transfer assembly includes a first shaft adapted to be driven by the power source, a second shaft adapted to transmit torque to the... Agent: Harness, Dickey & Pierce, P.L.C

20080090693 - Planetary transmission having a continuously variable transmission ratio: A planetary transmission having a continuously variable transmission ratio. Two sun wheels with sun wheel outer circumferential surfaces are rotatable coaxially at different rotational speeds and coaxially spaced from each other. A ring wheel is coaxial with the sun wheels and has a radially inner circumferential surface. Planet wheels having... Agent: Alfred J Mangels