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Clutches and power-stop control April category listing, related patent applications 04/09

20090107790 - Hydrodynamic torque converter device for an automotive drive train: The invention relates to a hydrodynamic torque converter device (1) which comprises a torsional vibration damper (10), a converter torus (12) configured by an impeller (20), a turbine wheel (24) and a stator (22), and a converter lockup clutch (14), said torsional vibration damper (10) having two energy accumulating devices... Agent: Simpson & Simpson, PLLC

20090107796 - Hydraulic control system of eight-speed automatic transmission for a vehicle: A hydraulic control system of an eight-speed automatic transmission for a vehicle. Four clutches and two brakes can by independently controlled by six proportional control solenoid valves by employing pressure control valves and pressure switching valves.... Agent: Morgan, Lewis & Bockius LLP (sf)

20090107791 - Isolator decoupler: An isolator decoupler comprising a first tapered portion for connecting to a driving shaft, a second tapered portion cooperatively engaging the first tapered portion, the second tapered portion having a frictional engagement with a pulley, and an elastomeric member operatingly disposed between the second tapered portion and the pulley.... Agent: Jeffrey Thurnau The Gates Corporation

20090107793 - Method of forming a torsional vibration damping disk: A method of forming a torsional vibration damping disk, including the steps of: stamping a concave surface at a periphery of a disk; heat treating the stamped disk; placing at least one forming element at least partially in contact with at least a portion of the concave surface; and curling... Agent: Simpson & Simpson, PLLC

20090107792 - Series damper with hysteresis in one damper: A series damper, including: a first damper with a flange and a cover plate; and a second damper with first and second cover plates and a flange. The flange and the cover plate for the first damper are rotationally frictionally engaged and the flange for the second damper rotates free... Agent: Simpson & Simpson, PLLC

20090107794 - Clutch actuation system: A multiple-disk clutch used in the power train of a motor vehicle for transmitting power from the crankshaft of an engine to a transmission input shaft is disclosed. The multiple-disk clutch comprises an actuation system supported at least in part by one of the inner and outer clutch member, and... Agent: Osler, Hoskin & Harcourt LLP (brp)

20090107797 - Clutch operation assisting device, power unit for vehicle and straddle type vehicle including the same: A downsized power unit equipped with a clutch operation-assisting device that reduces operation force of a clutch lever. The clutch operation-assisting device includes a push shaft and a first rotation plate that is rotatably supported by a support plate and connected to a clutch wire, and slides the push shaft... Agent: Hogan & Hartson L.L.P.

20090107795 - Material wear indication system: A material wear indication system is provided that includes a friction plate capable of engaging a moving surface and a wear indicator. The friction plate includes a wearable portion and a non-wearable portion. In one embodiment the wear indicator is embedded in the non-wearable portion and is prevented from contacting... Agent: Krieg Devault LLP

20090101462 - Hydrokinetic coupling device, comprising a friction disc, carried by a rotating linking element of a turbine wheel with a damper plate: A hydrokinetic coupling device (10), which comprises a axis of rotation (B) and a torque converter (12), comprising a turbine wheel (22) mounted rotationally around a rotary driven shaft, as well as a circumferential damping device (40), comprising a damper plate (42) with a radial flange (44), rotationally linked without... Agent: Berenato, White & Stavish, LLC

20090101463 - Viscous clutch: A viscous clutch assembly (100) includes a rotor (104), a selectively rotatable member (102) surrounding the rotor and defining a working chamber (114) therebetween, a first opening (126A) defined through the rotor (104) between front and rear sides of the rotor (104) and in fluid communication with the working chamber... Agent: Kinney & Lange, P.A.

20090101465 - Breakaway clutch for controllable speed accessory drive system: An accessory drive system for a hybrid vehicle is provided including a planetary gear set having first, second, and third members. A torque transfer device operatively connects an engine with the first member. A motor/generator is operatively connected to the second member. A plurality of vehicle accessories are operatively connected... Agent: Quinn Law Group, PLLC

20090101464 - Method for controlling an automated friction clutch: A method for controlling an automated friction clutch arranged in a drive train of a motor vehicle in the force flow between a drive engine (3) and a drive transmission (4), which is configured to close passively by spring pressure and can be disengaged and engaged by way of a... Agent: Davis & Bujold, P.l.l.c.

20090095589 - Lockup device, and fluid-type torque transmission device equipped with same: A lockup device 5 of a torque converter 1 has a piston 51, a first plate 61, a second plate 62, a intermediate plate 63, a plurality of first springs 64, and a plurality of second springs 65. The intermediate plate 63 is provided so as to be able to... Agent: GlobalIPCounselors, LLP

20090095590 - Torque transmission device: l

20090095591 - Sprag retainer for an overrunning clutch: A retainer for sprags in an overrunning clutch is provided. The retainer is disposed between the inner and outer races of the clutch. The retainer includes first and second rings disposed about an axis and axially spaced from one another and a plurality of cross bars extending between the first... Agent: Dykema Gossett PLLC

20090095592 - Secondary clutch lever: Disclosed is a secondary clutch lever device for any vehicle having a handlebar for steering and a primary clutch lever mounted the handlebar. The secondary clutch lever has an adjustment feature and is biased to return to a secondary neutral position allowing the primary clutch lever to return to a... Agent: Guerry Leonard Grune

20090090590 - High torque one way clutch: A high torque capacity one-way clutch includes a first, inner annulus nested within a second, outer annulus. The inner annulus includes a plurality of transverse grooves on its outer surface as well as a centrally disposed circumferential groove. A like plurality of moveable struts having a central opening are received... Agent: General Motors Corporation Legal Staff

20090090591 - Method for determining a torque characteristic of an automated friction clutch: A method for determining a torque characteristic of a friction clutch located in a drive train of a motor vehicle in the force flow between a drive engine and a transmission and which is closed in its rest position. At least two marker points of a regulating-path-dependent torque characteristic are... Agent: Davis & Bujold, P.l.l.c.

20090090592 - High-frequency anti-lock clutch system and method: A clutch assembly is provided including a controller, a plurality of vibration sensors, a clutch housing containing a lubricated clutch pack having a friction interface, a clutch piston responsive to a current command from the controller and operable for applying a compression force on the clutch pack, and a high-frequency... Agent: Quinn Law Group, PLLC

20090090593 - Power transmission damper for a torque limiter: A damper assembly has a torque input member configured to be connected to engine crankshaft through a torque limit clutch. An output member has a hub configured to be mounted to a transmission input shaft. Damping springs operatively interconnects the input member and output member, enabling the input member and... Agent: Magna International, Inc.

20090090594 - Crawler vehicle drive control system: A drive control system of a crawler vehicle has a lever, a hydraulic distributor for feeding pressurized oil over a feed line to a hydraulic actuator. The hydraulic actuator can engage and release a central clutch. A cable has a first end fixed to a rod of the hydraulic actuator,... Agent: Cnh America LLC

20090084649 - Torque transmission device: A torque transfer device in the drive train of a motor vehicle for transferring torque between a drive unit and a shaft rotatable about a rotation axis, including: a hydrodynamic torque converter, which includes a converter cover, connectable to the drive unit, and which can be coupled through a pump... Agent: Simpson & Simpson, PLLC

20090084653 - Electrically variable transmission with an axially-moveable selectable one-way clutch assembly: An electrically variable transmission (EVT) includes two shafts and a selectable one-way clutch (SOWC) having a first and second ring. The SOWC selectively connects the shafts, and is applied by moving the first ring and a blocking device in an axial direction into frictional contact with the second ring. A... Agent: Quinn Law Group, PLLC

20090084650 - Electromagnetically actuated viscous clutch: A valve assembly (106) for an electromagnetically actuated viscous clutch (100) includes a cover plate (140) defining a seating portion configured to selectively cover an opening (138) from a reservoir (112), a flexible mounting plate (142), and an armature (144) that is movable in response to applied magnetic flux to... Agent: Kinney & Lange, P.A.

20090084651 - Structure for disposing clutch control apparatus in power unit for saddle-ride type vehicle: A clutch control apparatus for receiving an air flow more easily and to obtain a higher cooling performance in a power unit for a saddle-ride type vehicle while avoiding the size of the main engine body becoming larger in the front-and-rear direction. The power unit includes a clutch apparatus installed... Agent: Birch Stewart Kolasch & Birch

20090084654 - Mechanism for adjustment of vehicle operating lever: An operating lever, for example for use in a vehicle, is provided. The operating lever may comprise a lever holder, and an operating component pivotably coupled to the lever holder. Manipulation of the operating component may regulate or control a “pulling margin” of a wire that operates a device such... Agent: Rabin & Berdo, PC

20090084652 - Dual clutch arrangement with two piece main rotating manifold: A clutch apparatus includes a first clutch pack having a plurality of first friction disks. The first clutch pack will selectively transfer torque from a torque supplying member to a first torque receiving member. The apparatus also includes a second clutch pack having a plurality of second friction disks. The... Agent: Rader, Fishman & Grauer PLLC