Power transmission apparatus
Power transmission apparatus for vehicle of four-wheel drive typ
Power transmission unit
Preloaded control arm for a viscous fluid clutch
Pressure activated rotary clutch
Pressure-responsive fluid check valve and method for viscous flu
Pulse control of an electro magnetically actuated viscous fluid
Pump lock-up power transmission
Pump plate assembly for a viscous fluid clutch
Pumping element for temperature responsive viscous fan drive
Quick disengagement viscous drive coupling
Quick pump-out clutch plate for a viscous fluid clutch
Ramped clutch plate for a viscous fluid clutch
Recycling arrangement for a hydraulic coupling
Remote sensing fan drive
Remote sensing viscous fluid coupling
Resilient support for coil of viscous fluid drive
Ringed cover and seal for a viscous fluid clutch and method of m
Rolling dam temperature controlled hydraulic coupling
Rotary displacement coupling device