Planetary gear transmission systems or components inventions 09/07

20070225099 - Power train for hybrid electric vehicles and method of controlling the same: A power train for hybrid vehicles increases the range of the transmission gear ratio within which the efficiency of the power train is superior. Furthermore, the method of operating the power train is varied depending on the transmission gear ratio, so that the power train can be operated with superior... Agent: Morgan, Lewis & Bockius LLP (sf)

20070225098 - Drive device for vehicle: A vehicular drive system which includes a first electric motor, a power distributing mechanism (first gear device), a second electric motor, and a step-variable automatic transmission (second gear device), and in which the first electric motor and the power distributing mechanism constitute a first unit, while the second electric motor... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070225097 - Three planetary electrically variable transmissions with mechanical reverse: 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 or six selectable torque-transfer devices. The selectable torque transfer devices are engaged to... Agent: General Motors Corporation Legal Staff

20070225100 - Hydrostatic transaxle apparatus: A hydrostatic transaxle apparatus, comprises: a housing filled therein with fluid so as to serve as a fluid sump; an axle disposed in the housing; a first hydraulic displacement unit disposed in the housing, the first hydraulic displacement unit having a rotary shaft serving as an input shaft; a second... Agent: Sterne, Kessler, Goldstein & Fox P.l.l.c.

20070225101 - Hydraulic pressure control apparatus for automatic transmission: A headrest height adjusting apparatus includes: a basal member attached to a seatback and supporting a driving member; a movable member linked to a headrest and lifted up and down relative to the basal member; a transmitting member transmitting a driving force of the driving member to the movable member... Agent: Buchanan, Ingersoll & Rooney PC

20070225102 - Hydraulic pressure control apparatus of automatac transmission: A hydraulic pressure control apparatus for an automatic transmission having plural engaging elements (a first engaging element and a second engaging element) includes plural control valves (a first control valve and a second control valve) controlling each engaging element by supplying controlled hydraulic pressure as output pressure, plural shift valves... Agent: Buchanan, Ingersoll & Rooney PC

20070225103 - Structure of differential housing: The present invention provides a differential housing having guide slots formed therein. The guide slots permit movement of pinion shaft axially therethrough. A plurality of apertures are provided in the housing for properly positioning a pinion shaft within the housing. The apertures further provide fluid communication between the exterior and... Agent: Mcdonald Hopkins LLC

20070225104 - Multiple rotation interface: A simultaneous multiple rotation interface where a series of discs eccentrically rotate about a central shaft to create a speed reduction between an input disc and an output disc. Each disc is engaged with the other via a series of bearings embedded within each disc.... Agent: Fulbright & Jaworski L.l.p

20070225105 - Transfer case with torque limiting clutch assembly: A power transfer unit is provided with a torque limiting coupling that limits the amount of torque that can be transferred to the driveline components when torque peaks occur while torque is transferred to the non-slipping wheels. The torque limiting coupling includes an engagement member disposed between an input from... Agent: Harness, Dickey & Pierce, P.L.C

20070225106 - Pin retention and assembly system for locking differential: A pin retention and assembly system that is used with vehicles, such as, off-road vehicles is provided. The pin retention and assembly system has modular locking pins engaging a collar positionable about a bearing journal of a differential housing. Channels are formed in the bearing journal for receiving the locking... Agent: Mcdonald Hopkins LLC

20070225107 - Vehicle gear change device: A vehicle gear change device comprising a casing, a sun gear, a planet frame, a planet gear, an inner gear, a switching driving unit; a rotary shaft, and a switch gear switching unit; the switch gear switching unit including a moving fork and a cam toggle. The rotary shaft is... Agent: Jen-chih Liu

20070225108 - Multi-speed gearbox: An eight-gear gearbox comprises an input shaft, an output shaft, four planetary gearsets, eight rotatable shafts and five shifting elements. A ring gear of the second planetary gearset and the input shaft are connected as the first shaft. A carrier of the third planetary gearset and the output shaft are... Agent: Davis & Bujold, P.l.l.c.

20070225109 - Power train of automatic transmission: A power train of an automatic transmission has eight forward gear stages and three reverse gear stages. The power train includes two composite planetary gear sets and seven engagement elements: two clutches and five brakes. Two of the engagement elements are engaged in each gear stage.... Agent: Morgan, Lewis & Bockius LLP (sf)

20070225112 - Planetary gear type transmission: A planetary gear type transmission includes a planetary gear mechanism including a sun gear, a ring gear, and a planetary carrier which all have the same axis, an output shaft having the same axis as the planetary gear mechanism, a sleeve supported movable in an axial direction by the output... Agent: Buchanan, Ingersoll & Rooney PC

20070225111 - Epicyclic gear train integral sun gear coupling design: A coupling system for connecting a sun gear to a shaft within a planetary gear train, includes a sun gear coupling connecting the sun gear to the shaft. The sun gear coupling has at least one undulant flexible section joined to an inflexible spindle for accommodating misalignment between the sun... Agent: Kinney & Lange, P.A.

20070225110 - Slide-proof structure between an outer wall of planet gear and planet frame of differential mechanism: A slide-proof structure between an outer wall of a planet gear and a planet frame of a differential mechanism comprises a left half shaft engaged to a left gear; a right half shaft engaged to a right gear; at least one planet gear installed between the left gear and the... Agent: Jen-chih Liu

20070219036 - Electrically variable transmission having three planetary gear sets, two fixed interconnections and a stationary member: 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, up to five selectable torque-transfer devices and possibly a dog clutch. The selectable torque transmitting... Agent: General Motors Corporation Legal Staff

20070219035 - Electrically variable transmissions having two planetary gearsets and clutched input: 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, two electric machines serving interchangeably as motors or generators, four or five selectable torque-transmitting devices, and possibly a dog clutch. The selectable torque transmitting devices... Agent: General Motors Corporation Legal Staff

20070219037 - Method and apparatus for cooling and lubricating a bearing device: The present invention provides a method and apparatus for cooling and lubricating a pinion bearing of an automatic transmission. The apparatus preferably includes a carrier assembly partially defining a centrifugal compensation oil reservoir. A pinion shaft is supported by the carrier assembly. The pinion shaft defines an internal channel in... Agent: General Motors Corporation Legal Staff

20070219038 - Drive and transmission module with a layout adapted for a vehicle: A drive consists of a drive source and a connected transmission module that is built up of a bypass transmission with connected supporting devices for the support of torque, a transmission, a torque converter, and several clutches and reductions. The bypass transmission has three rotation bodies and is made as... Agent: Law Offices Of Eric Karich

20070219039 - Bearing arrangement for the input shaft of a forward axle in a tandem axle drive: An axle center for the forward axle in a vehicle having tandem drive axles includes a housing containing input, output and through shafts that rotate in the housing about a common axis on front, rear and through shaft antifriction bearings. The front and rear bearings, which support the input and... Agent: Polster, Lieder, Woodruff & Lucchesi

20070219040 - Method for converting a non-driven tag axle system to a driven axle system: A method for converting a non-driven tag axle system to a driven axle system is disclosed where a forward driven axle system is converted to drive an interaxle drive shaft. The interaxle drive shaft is connected to a drive axle head mounted within the tag axle housing. Drive axles are... Agent: Marshall & Melhorn, LLC

20070219041 - Modular brake assembly for a drive axle: A modular brake assembly for a drive axle is proposed, comprising a multi-disk brake with a service brake element and a parking brake element, which is disposed in a brake housing (1) with inside diameter between an axle bracket and axle center component. A guide fixed to the housing is... Agent: Davis & Bujold, P.l.l.c.

20070219042 - Transmission having integrated braking device: The present invention provides a transmission, which makes it possible to conduct work of repairing or replacing a braking device by disassembling only parts of a reduction gear system after separating a housing, and in which oil is provided around the braking device and circulates along a flow path, thus... Agent: Sherr & Nourse, PLLC

20070219043 - Transmission having integrated braking device: The present invention provides a transmission, which makes it possible to conduct work of repairing or replacing a braking device by disassembling only parts of a reduction gear system after separating a housing, and in which oil is provided around the braking device and circulates along a flow path, thus... Agent: Sherr & Nourse, PLLC

20070219044 - Lightweight reduction gearbox: Contemplated gearboxes combine a high numerical reduction ratio with the capability of transmitting power at a superior power-to-weight ratio using a compound star planetary gearbox configuration that is radially expanded using hollow driveshafts to link the planet gears. In most preferred compound planetary gear arrangements, planets of different diameter are... Agent: Rutan & Tucker, LLP. Hani Z. Sayed

20070213162 - Drive force distribution apparatus: A drive force distribution apparatus is provided with an input shaft, first and second output shafts, a first epicyclic gear group, a second epicyclic gear group and a motor/generator. The first epicyclic gear group has two degrees of freedom, with the first epicyclic gear group including a first gear coupled... Agent: GlobalIPCounselors, LLP

20070213160 - Compact fault tolerant variable cross-drive electromechanical transmission: A transmission drive system (TDS) for a differential speed steered vehicle, in particular a track-laying vehicle (tank or armored personnel carrier), has two AC induction traction motors, each operatively coupled to two semi-independent coaxial traction shafts, and two AC induction steer motors coaxially mounted on a common steer axis parallel... Agent: Scully Scott Murphy & Presser, PC

20070213161 - Drive apparatus for vehicle: A vehicle drive apparatus includes a first electric motor, a power distributing mechanism, a second electric motor, and a step-variable power transmission. A power transmitting portion includes a second case, accommodating the second electric motor and the automatic power transmission. One end of an input shaft of the automatic power... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070213158 - Drive train for a motor vehicle and control method thereof: The invention relates to a drive train comprising a first electrical machine (15) having a first stator and a first rotor, a propulsion shaft (19) driven in rotation by the first rotor, energy storage means (27, 35), and electrical energy distribution means (26) electrically connecting the first stator to the... Agent: Nicolas E. Seckel Patent Attorney

20070213159 - Electrically variable transmission having three planetary gear sets, two fixed constraints and a stationary member: 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, three or four selectable torque-transfer devices, and possibly a dog clutch. The selectable torque transfer... Agent: General Motors Corporation Legal Staff

20070213163 - Double-clutch transmission element for a hybrid pull chain of a motor vehicle, method of mounting same, and motor vehicle equipped with one such element: The invention relates to a double-clutch transmission element for a hybrid pull chain of a motor vehicle, a method of mounting same and a motor vehicle equipped with one such element. The inventive element (25) consists of a motion input shaft (37), a motion output shaft (39), an electrical machine... Agent: Nicolas E. Seckel Patent Attorney

20070213164 - Automatic transmission control system: An automatic transmission control system is provided with a disengagement malfunction determining section and a disengagement malfunction preventing section in an automatic transmission in which the frictional engaging elements are selectively engaged and disengaged to change a rotational speed of a main power source. The disengagement malfunction determining section determines... Agent: GlobalIPCounselors, LLP

20070213165 - Drive train of an all-wheel drive vehicle: The drive train of an all-wheel drive vehicle comprises a transfer case (2) that is connected to the motor block (1), a driven front axle (6), a driven rear axle (4), the drive shafts (3, 5) and a control device (15). To vary the torque distribution between the axles (4,... Agent: Harness, Dickey & Pierce, P.L.C

20070213166 - Double differential assembly: A differential assembly with a first differential drive (15) having a differential cage (14) rotatingly drivable around an axis of rotation (A), a plurality of differential spur gears (17) rotating with the differential cage (14), and crown gears (18, 19) coaxial with the axis of rotation (A) and engaging the... Agent: Dickinson Wright PLLC

20070213167 - Power output apparatus for hybrid: Under a switchover operation of an EGR valve from OFF to ON or from ON to OFF, the control procedure of the invention keeps an engine power demand Pe*, which is to be output from an engine and is set corresponding to a torque demand Tr* to be output to... Agent: Kenyon & Kenyon LLP

20070213168 - Multi-speed transmission: An input shaft is connected to a carrier of first set (P1) and a sun gear of second set (P2) and is connectable to a fifth shaft, which couples a carrier of third set (P3) and is connectable to the housing. The sun gear of the first set (P1) is... Agent: Davis & Bujold, P.l.l.c.

20070213169 - Multi-speed transmission: A multi-speed transmission with seven forward gears and one reverse gear, comprising an input shaft (1), an output shaft (2), three planetary gear sets (P1, P2, P3), six rotatable shafts (1, 2, 3, 4, 5, 6), as well as six control elements (03, 04, 05, 15, 35, 36, 45, 46),... Agent: Davis & Bujold, P.l.l.c.

20070213170 - Multi-speed transmission: The multi-speed transmission with one reverse and six forward gears has input and output shafts, planetary gear sets, six shafts, and five control elements. The input shaft couples the sun gear of gear set (P2) and detachably connected to shaft (3) or to shaft (6) and via clutch (14) to... Agent: Davis & Bujold, P.l.l.c.

20070213171 - Gear assembly: The present technique, in accordance with certain embodiments, provides a novel gearing assembly. The exemplary assembly includes a planetary or epicyclic gear set that provides the final gear reductions from the output shaft. Specifically, the use of a planetary gear set for final reduction transfers rotation and torque to four... Agent: Thompson Coburn, LLP

20070207887 - Power transmission device: A composite gear member of the power transmission device is divided into an annular first member and a second member. The annular first member is formed with an output gear. The second member is formed with internal teeth and spline-coupled to an inner portion of the first member. Therefore, the... Agent: Sughrue Mion, PLLC

20070207888 - Method and device for operating a drive unit, a computer program product and a computer program: A method and a device for operating a drive unit, a computer program product having program code and a computer program which allow for an adaptation of a torque loss even outside of an idling operating state of the drive unit. In this instance, the losses of an output variable... Agent: Kenyon & Kenyon LLP

20070207889 - Propeller shaft assembly with energy storage mechanism and controlled clutch: A propeller shaft and energy storage assembly includes a first power transfer mechanism for selectively drivingly interconnecting the propeller shaft and an energy storage device to store energy within the energy storage device. A second power transfer mechanism is operable to selectively retain and release energy stored within the energy... Agent: Harness, Dickey & Pierce, P.L.C

20070207890 - Automatic transmission and method of assembling the transmission: A transmission includes a plurality of rotating clutches and brakes and first, second, and third planetary gear sets. Each planetary gear set includes a sun gear, planet gears, and ring gears. Ring gears of the first and second planetary gear sets are permanently connected and include a circumferential protrusion extending... Agent: Caterpillar Inc. Intellectual Property Dept.

20070207891 - Multi-speed transmission: The multi-speed transmission has planetary gear sets (P1, P2, P3, P4), shafts, and control elements. Shaft (1) couples the carrier of set (P1) and detachably couples shaft (5), which couples the carrier of the set (P3) and detachably couples the housing. The sun gear of set (P1) couples the housing.... Agent: Davis & Bujold, P.l.l.c.