Remote controlled hub clutch
Snap-action arrangement for transfer case synchronizer
Arrangement for the shifting of a multi-disk clutch for the locking of a transfer differential for the drive of two vehicle axles of a motor vehicle
Friction material configuration
Single cone servo action synchronizer
Power transmission system for a four-wheel drive motor vehicle Patent #: 5234091
ApplicationNo. 057272 filed on 05/04/1993
US Classes:192/85CA, Clutch and nonrotating motor192/53.3With blocker
ExaminersPrimary: Bonck, Rodney H.
Attorney, Agent or Firm
Foreign Patent References
International ClassesF16D 025/08
AbstractThe present invention provides a hydraulically-actuated shift system that is operable for shifting a mechanical shift apparatus of a power transfer device between first and second operative positions. The hydraulically-actuated shift system includes a hydraulic circuit for providing a source of hydraulic power, a hydraulic actuator for selectively moving a clutch sleeve of the mechanical shift mechanism between the first and second drive positions, and an electric control circuit for controlling selective actuation of the hydraulic actuator. The shift system is particularly well-suited for use with four-wheel drive transfer cases for permitting the vehicle operator to shift between two-wheel and four-wheel drive modes and or between various speed ranges.