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7475764 |
Device for driving a coolant pump
The invention relates to a device for driving a coolant pump ( 2 ) for the coolant circuit of an internal combustion engine in a motor vehicle comprising a drive train that encompasses a drive...
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7225614 |
Fluid coupling and method of manufacturing fluid coupling
An impeller 3 configures a fluid chamber and includes impeller blades 17 and an annular impeller hub 18 . A turbine 4 is disposed to face the impeller 3 and includes turbine blades 22 ...
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7210376 |
Device for transmitting torque between two rotatable, coaxial schaft members
A device for transmitting torque between two rotatable, coaxial shaft members ( 1, 2 ) contains a clutch ( 35 ) between the two shaft members and engageable—to counteract rotational speed...
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6874605 |
Controllable viscous coupling
The invention relates to a controllable viscous coupling for generating a locking effect between two coupling parts rotatable relative to one another around a common longitudinal axis, more...
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6725990 |
Torque transfer clutch with magnetorheological actuator and ball screw operator
A transfer clutch includes a magnetorheological actuator which controls operation of a ball screw operator for controlling the magnitude of clutch engagement force exerted on a multi-plate clutch...
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6668993 |
Viscous coupling
A viscous coupling comprising two parts which form an annular chamber 16 which is filled with a highly viscous fluid and in which first coupling plates 17 are connected to the first one of the...
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6446773 |
Viscous coupling with symmetric freewheeling assembly
A viscous coupling having two rotatable parts in the form of a hub and a housing for the transmission of torque between the rotatable parts caused by a positive speed differential between the...
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6443282 |
Apparatus and method for controllable viscous coupling
A viscous coupling for lockingly connecting two parts which are rotatable relative to one another, having the following characteristics: a first coupling part is provided in the form of a...
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6431337 |
Controllable coupling
A coupling for controllably transmitting torque, having a first coupling member and a second coupling member—especially a shaft and a coupling housing—which are supported so as to be rotatable...
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6412618 |
Ball-ramp-actuated friction clutch controlled by a particle-clutch
A particle clutch and a ball-ramp-actuated friction clutch controlled by the particle clutch. The particle clutch includes input and output couplings, the transfer of force therebetween being...
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6378675 |
Clutch device with a hydrodynamic clutch and at least two friction clutches
A clutch device which serves to connect the drive) of a motor vehicle with a multiple-speed shift transmission has, for this purpose, two friction clutches which can be engaged or disengaged...
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6296095 |
Coupling assembly with double shear channel
A coupling assembly comprising a friction coupling a pressure-generating device comprising a pump body member, an axially-displaceable piston loading the friction coupling, and a pressure chamber...
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6267214 |
Differential-speed-dependent automatic coupling with reduction switching means
A viscous coupling comprising two parts which are supported inside one another, which are rotatable around a common longitudinal axis and which form an annular chamber which is filled with a highly...
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6155392 |
Hydrodynamic clutch device with a dividing wall between a hydrodynamic circuit and a residual circuit
A hydrodynamic clutch device is formed with a hydrodynamic circuit comprising at least an impeller and turbine wheel and with a residual circuit in which is provided at least a lockup clutch for...
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6116392 |
Coupling device for transmitting torque
A coupling device for transmitting torque between a first part and a second part which are rotatable relative to one another is disclosed. The coupling device comprises a multi-plate coupling unit...
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6016896 |
Device for controlling a coupling
A device for transmitting torque between two parts rotatably mounted relative to one another. The device comprises a friction coupling 12 having friction elements rotationally fixed to each of the...
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6016894 |
Hydrodynamic coupling device with a lockup clutch
A hydrodynamic coupling device includes an impeller wheel with an impeller shell and a vane arrangement and a turbine wheel with a turbine shell and vane arrangement. The vane arrangements of the...
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5967276 |
Viscous actuated ball ramp clutch and improved housing therefor
A differential device (17) for use in a four wheel drive system, the device including a viscous coupling (29), a ball ramp actuator (31), and a clutch pack (33). Under normal driving conditions,...
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5884739 |
Coupling assembly with reservoir for highly viscous fluid
A coupling assembly has a friction coupling with friction plates alternately connected to respective ones of first and second coaxial parts which are rotatable relative to one another. A hydraulic...
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5622244 |
Torque converter clutch having a parallel viscous drive
A bypass clutch for use in an hydrodynamic torque converter (10) includes a viscous coupling (30) driveably engaged with the torque converter input shell (12) and turbine (18), and a friction...
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5562190 |
Hydraulic clutch control system with fluid coupling pre-heat circuit for rapid response at low ambient temperatures
A power plant is provided which includes a drive apparatus actuated clutch which can be rapidly engaged to selectively connect a prime mover to a driven device after prolonged exposure of the power...
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5388679 |
Torque transmission device of a four-wheel drive vehicle
A torque transmission device of a four-wheel drive vehicle having a pair of drive shafts includes a hydraulic pump for transmitting torque to both drive shafts through a variable oil pressure...
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5351780 |
Transfer apparatus for a vehicle
A transfer apparatus for a vehicle has an input shaft which is connected to pinion shafts so as to rotate together with the pinion shafts in a transfer casing. Pinion gears, provided on the pinion...
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5346043 |
Torque converter and viscous clutch
A torque converter and viscous clutch has a viscous fluid chamber and a hydraulic fluid chamber. The fluid chambers are sealingly separated and physically interconnected by a piston interface. The...
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5330038 |
Torque converter clutch
A torque converter clutch has a selectively engageable friction torque transmitting portion and a viscous torque transmitting portion. The friction and viscous portions are serially arranged...
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5314048 |
Reduced cost viscous coupling by-pass element for a torque converter
A viscous coupling (11) is disclosed of the type used as a by-pass element in a torque converter assembly (T) including a torque converter housing (H) and an output shaft (S). The coupling includes...
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5178251 |
Miniature vehicle drive train protection assembly
A drive train protection device for a miniature racing vehicle is provided. The device is disposed along the drive train between the vehicle motor and the transmission. The vehicle motor rotates an...
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5178249 |
Rotary coupling for torque transmission
A rotary coupling for torque transmission is arranged between two relatively rotatable shafts to transmit a rotational torque in response to a rotational speed difference therebetween. The device...
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5170867 |
Pedal parking brake
Pedal parking brake. This device is provided with a supporting shaft fixed to the side of a car body, a rotary body attached to another end of the supporting shaft, a damper case interposed between...
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5156247 |
Connectable or disconnectable viscous coupling
A viscous coupling for a motor vehicle which may be connected or disconnected under load and which, in a reliable and interference-free way and with a short delay time, selectively permits the...
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5086893 |
Viscous coupling by-pass element for a torque converter and improved bushing design
A viscous coupling (11) is provided for use as a by-pass element in a torque converter (T). The coupling includes a body member (13) having a body hub portion (25) and a cover member (15) having a...
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5086867 |
Power transmission apparatus
To simplify propeller shaft supporting structure and to reduce propeller shaft vibration when a viscous coupling and a clutch mechanism are both provided on a propeller shaft of a 4WD vehicle, the...
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5044477 |
Torque converter viscous coupling bypass element with improved seal arrangement
A bypass element (27) for a torque converter (15) is provided in which the bypass element comprises a viscous coupling (29). The viscous coupling includes a housing assembly comprising a body...
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5036963 |
Viscous clutch assembly for torque transmission in motor vehicle
A viscous clutch assembly adapted for installation in a torque transmission system for effecting a drive connection between a pair of rotary members coaxially arranged for relative rotation. The...
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5012908 |
Control coupling for torque transmission
A control coupling for torque transmission between a pair of rotary members coaxially arranged for relative rotation, which includes a cylindrical casing mounted on one of the rotary members for...
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5007885 |
Driving torque transmitting device
A driving torque transmitting device which has a differential case to which driving torque of an engine is transmitted. Within the differential case, a pair of side gears meshed with pinion gears...
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5004082 |
Starting device of an automatic transmission for vehicle
A starting device for an automatic transmission for a vehicle includes a hydraulic coupling disposed between the output shaft of the engine and the input shaft of the automatic transmission. A...
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4997071 |
Automatic control system for a clutch coupling two rotating shafts
The invention is concerned with an automatic control system for a clutch for coupling two rotatable shafts. The system comprises a piston for controlling a clutch mounted between two shafts....
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4966265 |
Clutch
A clutch (1) including an inner part (3) and an outer part (4) having races (6 and 5) respectively between which are arranged rollers (4). The rollers are arranged in a cage (7) which is in two...
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4921061 |
Electric power steering apparatus
An electric power steering apparatus is provided with a torque sensor for detecting manual torque input to a steering shaft of an automobile and an electric motor for generating auxiliary steering...
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4885957 |
Disconnectable transmission assemblies
A disconnectable transmission assembly comprising a coupling member within which is rotatably mounted in bearings a viscous coupling having a housing member and a hub which respectively carry...
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4875698 |
Power transmitting system for a four-wheel drive vehicle
A viscous coupling is provided in a power transmitting system for transmitting power of an engine to auxiliary driving wheels, and a lock device is provided for locking the viscous coupling so as...
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4848506 |
Drive power transmission device
A drive power transmission device includes: a first shaft for receiving drive power transmitted from a drive source; a second shaft having a coupling shaft portion at a front end thereof; a...
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4828079 |
Hydraulic retarder with parking brake
For the improvement in the hydraulic retarder comprising a fixed member (1) of vehicle, a shaft (2), a housing (4), a vane chamber (3), a plurality of stator vanes (5) and a plurality of rotor...
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4762213 |
Driving system for a four-wheel drive vehicle
A vehicle driving system including a hydraulic clutch having a plurality of friction members which are adapted to be forced into engagement with each other by a hydraulic pressure applied to a...
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4700820 |
Torque transfer device and engageable, shiftable clutch in an all-wheel drive arrangement for a motor vehicle
A multiple-disk visco-clutch is arranged in the drive line of the front axle and the rear axle of a four wheel-drive motor vehicle. In order to prevent an overheating of the multiple-disk...
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4690258 |
Hydraulic power transmission device with centrifugally actuated clutch override
A hydraulic power transmission device of the viscous shear type provides a rotatable driving connection between first and second shaft assemblies. A centrifugal clutch is interposed between the...
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4648492 |
Mechanism to engage part time drive system in a moving vehicle
The transfer case of a vehicle that can be driven in two-wheel drive or four-wheel drive includes a range speed transmission driveably connected to the output of a multiple speed ratio transmission...
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4636679 |
Piezoelectrically driven fast response high-torque clutch unit
The coupling of driving shaft with a driven shaft is accomplished at high torques and high speeds of rotation using a piezoelectric shack, a passive clutch system, and a hydraulic clutch activation...
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4562897 |
Vehicle drivetrain including viscous clutch
A vehicle drivetrain (16) disclosed includes a viscous clutch (30) that is driven by an auxiliary output (52) of a transaxle (28) to provide four-wheel driving when needed while providing two-wheel...
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