Planetary gear transmission systems or components inventions 04/09

20090111635 - Electrically-variable transmission with compounded output gearing: An electrically-variable transmission is provided with first and second motor/generators and three planetary gear assemblies. At least one of the planetary gear assemblies is a planetary gear assembly having multiple planetary gear sets. As a result, the gears for the planetary gear assembly can be represented on multiple radial planes.... Agent: Quinn Law Group, PLLC

20090111636 - Electroyhydraulic control device of a gear unit: An electrohydraulic control device (1) of an 8-speed transmission having several electrically controllable pressure control valves (6-12) for hydraulically actuating five switching elements (A-E) and an electric gear control unit via which different operating states of the transmission may be adjusted. Three of the switching elements are connected in the... Agent: Davis & Bujold, P.l.l.c.

20090111637 - 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, determining a minimum line pressure required to lubricate the... Agent: Cichosz & Cichosz, PLLC

20090111638 - Driving force transmission device and image recording apparatus having the same: A driving force transmission device is provided. The device includes: a first differential unit and a second differential unit. The first differential unit includes: first and second input shafts connected to a first motor and a second motor, respectively, and a first output shaft connected to a first driven member.... Agent: Baker Botts LLP C/o Intellectual Property Department

20090111639 - Planetary gear: A planetary gear train is described which includes a sun gear, three or more planet gears, an annulus as well as a planet gear carrier, whereby the input is provided via the sun gear and the output is provided via the annulus or via the planet gear carrier, whereby each... Agent: Davidson, Davidson & Kappel, LLC

20090105028 - Transmission system: A hydro-mechanical transmission system or electromechanical transmission system is described which uses pumps/motors or generators/motors having smaller capacity than those employed in the conventional techniques, irrespective of setting of a mode switching point that is a basis for shifting between an input split mode and a compound split mode. A... Agent: Frishauf, Holtz, Goodman & Chick, PC

20090105029 - Transmission and transport device including train using the transmission: A transmission and a motor or non-motor type transport device including a cross-coupling power train using the transmission, such as chainless bicycle or wagon with two or four wheels are disclosed. The transmission includes a coarse adjustment gearshift of internal gear type and a fine adjustment gearshift of differential gear... Agent: Dykema Gossett PLLC

20090105030 - Transmission: A transmission includes a transmission case accommodating a planetary gear mechanism, a traveling speed change mechanism, a differential gear mechanism and a PTO clutch mechanism, and supporting an HST. The HST is connected to a first end wall of the transmission case positioned on one side in a vehicle longitudinal... Agent: Sterne, Kessler, Goldstein & Fox P.l.l.c.

20090105031 - Differential assembly and method for manufacturing same: A differential assembly and method of manufacturing such an assembly are provided. A method for manufacturing a differential assembly includes forming a first portion of a differential carrier; forming a second portion of the differential carrier; securing the first portion to the second portion to form the differential carrier; forming... Agent: Mcdonald Hopkins LLC

20090105032 - Differential gear: A differential gear has a simple structure, is able to produce a difference of differential limiting force between a driving operation of a vehicle in which the differential gear is installed and a coasting operation of the vehicle, secures the strength of a thrust bearing adopted for the differential gear,... Agent: Jordan And Hamburg LLP

20090105034 - Connection of sheet metal components of a transmission: The invention relates to a connection of sheet metal components of a transmission, wherein the connection has at least one form fit between at least one first sheet metal component and at least one second sheet metal component, and here, the form fit is formed by means of at least... Agent: Lucas & Mercanti, LLP

20090105033 - Planetary gear set equipped with pinion shaft and carrier: A planetary gear set equipped with a pinion shaft and a carrier according to an exemplary embodiments of the present invention includes: a pinion shaft having a engaging portion that protrudes in a longitudinal direction on an end thereof; a carrier into which the engaging portion of the pinion shaft... Agent: Yeon Cheon Woo

20090105035 - Planetary gearset: A planetary gearset provided with a sun gear, a ring gear, and a carrier that rotatably retains a plurality of pinion gears arranged between the sun gear and the ring gear as elements, in which one of the elements is made a fixed element and one of the other elements... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090098969 - Drive device for vehicle: A miniaturized vehicular drive apparatus is provided with a reduced size in an axial direction without increasing the number of parallel shafts. A first electric motor M1 and a power distributing mechanism (differential portion) 16 are disposed on a first axis CL1, forming a rotational axis of an input rotary... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090098970 - High-efficiency vehicular transmission: A high-efficiency vehicular transmission is provided. The transmission includes a transmission housing, a set of torque delivery elements which include first and second elements supported for rotation within the housing and an electric motor for changing angular velocity of at least one of the elements in response to an electrical... Agent: Brooks Kushman P.C.

20090098968 - Hybrid powertrain with single electric motor integrated within automatic transmission: A hybrid transmission is provided that is operatively connectable to an engine. The transmission has an electric motor and a clutch, which may be a brake-type clutch or a rotating-type clutch, depending on the embodiment, integrated within the transmission. Absent the electric motor and the clutch, and with the addition... Agent: Quinn Law Group, PLLC

20090098971 - Automatic transmission for a power tool: A transmission assembly is powered by an electric motor and includes a transmission having an outer ring gear, a connector moveable relative to the outer ring gear between a first position, in which the connector is rotatable with the transmission in response to torque received from the motor, and a... Agent: Michael, Best & Friedrich LLP

20090098972 - Two-stage machine tool gearing, in particular spindle gearing: A two-stage machine tool transmission, in particular a spindle drive transmission, includes a planetary gearset in which a spindle or a spindle insert can be connected to a drive output of a transmission, which has a first drive output shaft and the second drive output shaft, such that the first... Agent: Davis & Bujold, P.l.l.c.

20090098973 - Drive device for motor vehicles: The invention relates to a drive device for motor vehicles with at least one longitudinal output or transverse output differential gear, with an input shaft, and with a means for controlled torque distribution to the two output shafts. A quick-response, structurally advantageous drive device is thus achieved in that the... Agent: Novak Druce & Quigg LLP

20090098974 - Eight and nine speed automatic transmissions: An automatic transmission includes four planetary gear sets, a plurality of friction and synchronizing clutches and two chain drive assemblies. Input torque is provided to four clutches which selectively provide torque to one element of a compound assembly comprising first and second planetary assemblies. The second planetary assembly includes only... Agent: Vivacqua Law, PLLC

20090098975 - Hand-held rotating power tool: A rotating power tool has a transmission assembly having a transmission casing, a common annulus, at least two planetary gear assemblies and a thrust washer assembly. The common annulus is tubular, is mounted securely in the transmission casing and has an inner surface and multiple teeth. The planetary gear assemblies... Agent: Patenttm.us

20090093332 - Electrically variable transmission having three planetary gear sets with two fixed interconnections: 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 five selectable torque-transfer devices. The selectable torque transfer devices are engaged in combinations of... Agent: Quinn Law Group, PLLC

20090093331 - Hybrid drive device: A hybrid drive device includes an input member connected to an engine; an output member connected to a wheel; a first rotating electrical machine; a second rotating electrical machine connected to the output member; and a differential gear device including at least four rotational elements. The input member, the output... Agent: Oliff & Berridge, PLC

20090093330 - Hybrid vehicle drive system: A drive system of a hybrid vehicle, including an engine, a first electric motor, a second electric motor operatively connected to a drive wheel of the hybrid vehicle, and two planetary gear mechanisms, and wherein the two planetary gear mechanisms have at least four rotary elements arranged to permit the... Agent: Oliff & Berridge, PLC

20090093333 - Axle assembly with electro-hydraulic clutch control system: An axle assembly for a vehicle. The axle assembly includes an input shaft, a first and second output shaft, and a differential assembly. The axle assembly also includes a clutch assembly with an input member coupled to the differential assembly, an output member coupled to one of the first output... Agent: Harness, Dickey & Pierce, P.L.C

20090093334 - Method and kit to convert an open differential to a limited slip differential: A kit and method of using the kit to convert an open differential in a golf cart to a limited slip differential by replacing the side gears with side gears containing an integrated clutch surface that engage a spring loaded case containing an integrated clutch surface.... Agent: James M. Francis

20090093335 - Transmission and power transmitting system: A transmission includes: a plurality of rotating elements interposed between a driving source and an output portion; a rotating member that rotatably supports one of the rotating elements and is formed at a radially outer portion thereof with a plurality of recesses or protrusions; a support member having a surface,... Agent: Sughrue Mion, PLLC

20090088287 - Drive assembly with intermediate shaft and coupling unit: The invention relates to a drive assembly for being used in the axle drive of a motor vehicle between an axle differential and a sideshaft. It comprises an intermediate shaft (12) which is supported so as to be rotatable around an axis of rotation A, whose first end is connected... Agent: Dickinson Wright PLLC

20090088288 - Differential limiting apparatus: The differential limiting apparatus comprising a housing 2 rotated by driving force of a driving source, a differential mechanism 3 having one pair of output gears 3A, 3B to distribute said driving force to one pair of output shafts differentially, a clutch 4 disposed directly between the one pair of... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090088289 - Multiple speed automatic transmission: A multiple speed transmission includes an input and output; a first, second, third and fourth planetary gear sets, each gear set including a sun gear, a ring gear, a carrier, and pinions supported on the carrier and meshing with the sun gear and the ring gear; a first epicyclic gearing... Agent: Ford Global Technologies, LLC