Clutches and power-stop control inventions 02/08

20080047794 - Hydraulic pressure control apparatus for a vehicular power transmitting device: A clutch apply control valve switches between a first position and a second position based on a control pressure PDS1, and a control pressure PDS2. When both the control pressure PDS1, and the control pressure PDS2 are output, the clutch apply control valve switches from the first position to the... Agent: Oliff & Berridge, PLC

20080047796 - One-way clutch: A one-way clutch is provided with an outer ring having a cylindrical wall on an inner circumference thereof, an inner ring having cam surfaces formed thereon, rolling elements arranged between the outer and inner rings to perform transmission of a torque between the outer and inner rings, and springs biasing... Agent: Crowell & Moring LLP Intellectual Property Group

20080047798 - One-way clutch with dog-clutch and synchronizer: A clutch assembly is provided for use in a vehicle having an automatic transmission, the assembly including a clutch-apply piston and an integrated one-way clutch, dog clutch apply plate, and synchronizer clutch having a synchronizer plate and a rotating synchronizer cone. The clutch assembly is actuated by a clutch-apply piston... Agent: General Motors Corporation Legal Staff

20080047800 - Latched-pump applied clutch: 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

20080047795 - Control valve arrangement for controlling a start clutch of an automatic gearbox: A control valve arrangement for controlling a start coupling of an automatic gearbox comprising a clutch control valve (3, 37, 41, 48, 49) for controlling at least one clutch actuating device (4, 40) which, during normal operation of the gearbox, converts a supply pressure input (P_V1, P_V2) into a clutch... Agent: Davis Bujold & Daniels, P.l.l.c.

20080047797 - Clutch: The invention relates to a clutch (2), especially for motor vehicles, for the torque connection of at least two drive parts which are rotatable about a rotational axis (4), comprising at least one clutch device (6) with a first clutch body (8) with at least one first clutch surface (12)... Agent: Dykema Gossett PLLC

20080047799 - Functional motor vehicle assembly comprising a wet clutch transmission element and a hydraulic system, and motor vehicle equipped with same: The invention concerns an assembly comprising a hydraulic system (401, 501) and a transmission element including an input shaft, an output shaft, an electrical machine including a rotor, a first clutch between the input shaft and the rotor, and a second clutch between the rotor and the output shaft, said... Agent: Nicolas E. Seckel Patent Attorney

20080041685 - Replacement torque converter cover assembly: A replacement torque converter cover designed to withstand mechanical stresses generated in the torque converter lock-up clutch of ALLISON transmissions when such transmissions are utilized with diesel engines and other high-torque truck engines. The original equipment cover includes through-drilled holes for receiving unitary threaded stud pins, which function to attach... Agent: Clifford F. Rey Sonnax Industries, Inc.

20080041687 - Strut based overruning pulleys: Embodiments of the present invention include strut based overrunning pulleys that provide one or more of greater durability, lower heat generation, high torque loads carrying capability, potentially tunable vibration dampening, tunable to maximum permissible torque loads before elastic (repeatable) slippage, and/or ease of end of life assessment. In some embodiments,... Agent: Raymond R. Moser Jr., Esq. MoserIPLaw Group

20080041684 - Torque converter: A torque converter (1) in which an outer periphery end of a torsion spring (52) of a lock-up device (4) is positioned radially inward relative to an inner periphery end of a working fluid chamber, which includes a simplified structure of the lock-up device. According to the torque converter (1),... Agent: GlobalIPCounselors, LLP

20080041686 - Power transmission mechanism: A power transmission mechanism that permits power to be transmitted from an external driving source to a rotary shaft of a rotating machine includes a first rotating body, a second rotating body, an armature, and a spring clutch. The first rotating body rotates integrally with the rotary shaft of the... Agent: Woodcock Washburn LLP

20080041688 - Dual clutch transmission with radially nested clutches having a common disk carrier: A dual clutch transmission having radially nested clutches including an outer clutch having first inner and outer clutch disks that are interleaved between each other where the first outer clutch disks are operatively mounted to a first outer support carrier. The transmission also includes an inner clutch having second inner... Agent: Bliss Mcglynn, P.C.

20080041689 - Release mechanism for a parking brake clutch: A parking brake assembly which includes a brake lever, a rotary clutch and a lock-release mechanism which cooperate to selectively lock and release a parking brake. The clutch allows actuation of the brake lever in one direction and prevents movement of the brake lever in an opposite direction. The lock-release... Agent: Gifford, Krass, Sprinkle,anderson & Citkowski, P.c

20080035443 - Method of operating a dct hydraulic power control system as well as dct hydraulic power control system: A DCT hydraulic power control system has a pump, a high pressure section for providing oil to actuators of the DCT, a low pressure section for providing oil to a lubrication and cooling system of the DCT, and a regulator for directing excess oil from the high pressure section to... Agent: Michael Best & Friedrich LLP

20080035444 - Vehicle transmission comprising a parking brake and method for controlling the same: A vehicle transmission having shifting elements (A-E) and a parking brake for locking a drive train output and a method for controlling the transmission. Activation of the parking brake depends on a driver's control action. Deactivating the parking brake, when the vehicle is on a slope greater or lesser than... Agent: Davis Bujold & Daniels, P.l.l.c.

20080029363 - Snap-ring with additional loop: A retaining device or snap-ring for retaining a mating hub and drum within a transmission is provided. The device is insertable into a groove along the inner circumference of a circular flange and includes a main outer loop, an opening for dividing the snap-ring into two deflectable curvilinear portions and... Agent: General Motors Corporation Legal Staff

20080029361 - Control system and method for controlling an operational mode of a vehicle via multiple clutch assemblies: A first clutch assembly has an active state for transmitting rotational energy and an inactive state for not transmitting rotational energy. A generator has a generator shaft associated with the first clutch assembly. A second clutch assembly has an active state for transmitting rotational energy and an inactive state for... Agent: Deere & Company

20080029359 - Torque converter: In a torque converter, by devising a structure of a stator support mechanism, an axial dimension of a radially inner portion of the torque converter and surroundings thereof is reduced. The torque converter (1) includes a front cover (2), an impeller (3), a turbine (4), a stator (5) that regulates... Agent: GlobalIPCounselors, LLP

20080029360 - Automatic clutch mechanism, automatic clutch mechanism for straddle-type vehicle, and straddle-type vehicle: An automatic clutch mechanism that allows the feel of gear shifting to be readily transmitted to a rider through a pedal. The automatic clutch mechanism shifts gears while disengaging a clutch in conjunction with one pedal operation. A transmission effects a gear shift in conjunction with a pedal operation. The... Agent: Hogan & Hartson L.L.P.

20080029362 - Clutch system and method: A clutch system may include in certain embodiments a clutch body attached to a drive member such as a drive pulley, wherein the clutch body may be removed from the drive member without disassembling the clutch body. In various embodiments, the clutch body may include two clutch plates which enclose... Agent: Fish & Richardson P.C.