| Patents for F16D 27 - Magnetically-actuated clutches; Control or electric circuits therefor (4,969) | 
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| 02/11/2009 | EP2021647A1 Under travel actuator, particularly for an automobile clutch | 
| 02/11/2009 | EP2021646A1 Device for axially adjusting at least one plate-type shifting element | 
| 02/11/2009 | EP1412651B1 Clutch sleeve coupling device | 
| 02/11/2009 | CN101363358A Three-speed reversing electromagnetical fan clutch | 
| 02/11/2009 | CN101363357A Two-speed reversing electromagnetical fan clutch | 
| 02/10/2009 | US7488271 Control method of magnet type fan clutch | 
| 02/05/2009 | US20090032358 Torque Transfer Device Having Reduced Torque Variation | 
| 02/05/2009 | US20090032357 Electromagnetic clutch | 
| 02/04/2009 | EP2020519A1 Wrap spring clutch | 
| 02/04/2009 | EP2020518A1 Wrap spring clutch | 
| 01/29/2009 | US20090026035 Hybrid Apparatus for Transmitting Motive Power to a Driven Shaft | 
| 01/29/2009 | DE202008011202U1 Reibschaltkupplung mit einem von einem Antriebsmotor über einen Antriebsriemen angetriebenen Antriebsrad und Antriebseinheit With a friction clutch of a drive motor via a drive belt driven drive wheel and drive unit | 
| 01/29/2009 | DE10058936B4 Dynamo-elektrische Wechselstrommaschine für ein Fahrzeug Dynamo-electric alternator for a vehicle | 
| 01/28/2009 | EP2018290A2 Axle drive and clutch device for a motor vehicle | 
| 01/28/2009 | CN101354065A Apparatus and method for discharging and degaussing of electromagnetic clutch | 
| 01/27/2009 | US7481127 Continuously variable transmission using oscillating torque and one-way drives | 
| 01/21/2009 | CN201184381Y Clutch with temperature control protecting device | 
| 01/21/2009 | CN100453853C Limited slip differential device | 
| 01/15/2009 | US20090017982 Power Transmission Device | 
| 01/15/2009 | US20090014271 Power transmitting device | 
| 01/14/2009 | EP2014945A2 Power transmitting device | 
| 01/14/2009 | EP2014944A2 Power transmission device | 
| 01/14/2009 | CN101344162A 动力传输装置 The power transmission apparatus | 
| 01/14/2009 | CN101344128A Sliding fuel-economizing clutch | 
| 01/13/2009 | US7475764 Device for driving a coolant pump | 
| 01/07/2009 | CN201177017Y Combined type electromagnetic fan clutch | 
| 01/06/2009 | US7472778 Device for transmitting the movement to fans, in particular of vehicles | 
| 12/31/2008 | WO2009001191A2 Dog clutch | 
| 12/31/2008 | CN201173257Y Electromagnetic clutch structure improvement | 
| 12/31/2008 | CN201173256Y Bidirectional electromagnetic clutch | 
| 12/31/2008 | CN100447446C Coupling structure and coupling method for power transmission device | 
| 12/24/2008 | DE112007000463T5 Drehmomentübertragungsvorrichtung Torque transfer device | 
| 12/23/2008 | US7467701 Multiple-stage magnetic clutch coil | 
| 12/17/2008 | EP2002138A2 Rotational coupling device | 
| 12/17/2008 | EP2002137A1 Pulley assembly for a start-stop belt drive | 
| 12/17/2008 | CN100443757C Disc and hub assembly for electromagnetic clutch in a compressor | 
| 12/11/2008 | WO2008150652A1 Torque transfer device with torque tube coupling mechanism | 
| 12/10/2008 | CN100441897C An electric power connection part of electromagnetic clutch field coil assembly | 
| 12/04/2008 | WO2008146635A1 Electromagnetic clutch and method of adjusting air gap of electromagnetic clutch | 
| 12/04/2008 | WO2008146452A1 Driving force distribution/transmission device | 
| 12/04/2008 | WO2008145912A2 Actuating assembly for a wet clutch of a motor vehicle | 
| 12/04/2008 | US20080296117 Electrically Actuated Clutch Torque Signature | 
| 12/02/2008 | US7458615 Connector | 
| 12/02/2008 | CA2387751C Electromagnetically actuated pulley assembly | 
| 11/27/2008 | WO2008144214A1 Electrohydraulic torque transfer device and control system | 
| 11/27/2008 | WO2008143975A1 Electromagnetic actuator | 
| 11/26/2008 | CN201155533Y Automobile transmission-gear box electromagnetic clutch | 
| 11/26/2008 | CN100436855C Electromagnetic clutch | 
| 11/25/2008 | US7455160 Electromagnetic clutch | 
| 11/20/2008 | WO2007117427A3 Rotational coupling device | 
| 11/20/2008 | US20080283352 Electromagnetic actuator | 
| 11/18/2008 | US7452299 Coupling apparatus | 
| 11/13/2008 | WO2008137011A1 Pre-emptive electromagnetic clutch apply system | 
| 11/13/2008 | US20080278015 Actuator Having An Electric Actuating Motor And Controllable Friction Clutch Having Such An Actuator | 
| 11/12/2008 | EP1989461A1 Electromagnetic shifting device comprising a linear motor | 
| 11/12/2008 | CN201148898Y Internal combustion engine cooling water pump electromagnetic fan clutch assembly with circular magnetic resistance through hole | 
| 11/12/2008 | CN101303052A Dry type double clutch electric actuating mechanism | 
| 11/12/2008 | CN101303004A Drive through air compressor with cone clutch | 
| 11/11/2008 | US7448972 System for transmitting motion between the shaft of an internal combustion engine of a motor vehicle and a group of auxiliary devices | 
| 11/11/2008 | US7448464 Steer-by-wire system | 
| 11/06/2008 | WO2008131937A1 Magnetorheological torque transmission device, the use thereof, and magnetorheological torque transmission method | 
| 11/05/2008 | EP1988263A2 Apparatus with free-wheel device and double-armature clutch for transmitting the movement to fans for cooling vehicles | 
| 11/05/2008 | CN201144977Y Same-direction output chain pulley clutch | 
| 11/05/2008 | CN201144723Y Electromagnetic fan clutch for heavy-duty car | 
| 10/29/2008 | EP1985881A2 Apparatus which can be engaged by resilient means and disengaged electromagnetically for transmission of a rotational movement to a driven shaft | 
| 10/29/2008 | EP1402194B1 A ball arrangement in a torque transmitting device | 
| 10/29/2008 | CN101294607A Apparatus which can be engaged by resilient means and disengaged electromagnetically for transmission of a rotational movement to a driven shaft | 
| 10/23/2008 | WO2008127487A1 Torque transfer system and method of using the same | 
| 10/23/2008 | US20080256942 Hydraulic system and automatic gearbox | 
| 10/22/2008 | CN201137651Y Four roller milling machine electromagnetic clutch device | 
| 10/22/2008 | CN101290004A Two-in-one power generation air compressor | 
| 10/22/2008 | CN101290003A Two-in-one power generation air compressor | 
| 10/16/2008 | WO2008123621A1 Dog clutch actuator | 
| 10/16/2008 | US20080251344 Electromagnetic clutch | 
| 10/16/2008 | DE102008015917A1 Elektromagnetische Kupplung Electromagnetic clutch | 
| 10/16/2008 | DE102007017976A1 Switchable brake or clutch has a heating coil (40) which lies directly against operating coil and/or is arranged with coil in common coil recess of section of housing | 
| 10/15/2008 | EP1778995B1 Electromagnetic frictionally engaged clutch, method for the operation thereof, and use thereof in a drive train for automatically actuating a vehicle door or a vehicle flap | 
| 10/15/2008 | CN101284378A Hand electric tool machine | 
| 10/15/2008 | CN100425854C Clutch device and differential device using the same | 
| 10/14/2008 | US7435006 Pulley bearing for engine auxiliares | 
| 10/14/2008 | US7434354 Power device for opening and closing a vehicle sliding door | 
| 10/14/2008 | CA2374424C Magnetic flux detector and detection method | 
| 10/09/2008 | WO2008119911A1 Clutch control device | 
| 10/09/2008 | US20080246370 Actuator for the Drive Train of a Motor Vehicle | 
| 10/08/2008 | EP1977130A1 Clutch arrangement for motor vehicle transmission and method for engaging and disengaging a gearspeed | 
| 10/08/2008 | CN201129072Y Clutch mechanism of electromagnetic lock | 
| 10/08/2008 | CN100424369C Clutch based on ultrasonic suspending force control | 
| 10/08/2008 | CN100424368C Solenoid clutch coupling | 
| 10/07/2008 | US7431051 Sewage system for vehicles | 
| 10/02/2008 | US20080236982 Electromagnetic clutch | 
| 10/02/2008 | US20080236976 Magnetorheological Clutch | 
| 10/02/2008 | DE202008010143U1 Elektrische Mehrflächenkupplung oder -bremse Electric multi-face clutch or brake | 
| 10/01/2008 | EP1974146A2 Reverse rotation prevention device | 
| 10/01/2008 | CN101275609A Electromagnetic clutch | 
| 10/01/2008 | CN100422587C Clutch having a multiple pole electromagnetic actuator for transfer cases and the like | 
| 09/30/2008 | US7429073 Door operating apparatus, electromagnetic clutch, and coupling mechanism | 
| 09/24/2008 | EP1333188B1 Drive power transmission comprising electromagnetic clutch | 
| 09/24/2008 | CN101272885A Electric fastener driver | 
| 09/18/2008 | WO2008110457A1 Electro-mechanical coupling actuator | 
| 09/18/2008 | US20080224499 Clutch Mechanism for Power Device |