Resources Contact Us Home
Range shift arrangement for four-wheel drive vehicles

Image Number 4 for United States Patent #5346442.

A synchronized shift arrangement is disclosed for shifting a planetary-type gear reduction assembly from a low-range operating mode to a high-range operating mode. This arrangement is particularly adapted for use in vehicular power transfer devices, such as four-wheel drive transfer cases, for allowing the vehicle operator to shift "on-the-fly" from a four-wheel low-range drive mode to a four-wheel high-range drive mode without the need of stopping the motor vehicle. In a preferred embodiment, the power transfer apparatus includes a housing, a first member supported for rotation in the housing, a second member supported in the housing for rotation relative to the first member, a planetary gear assembly coupled to the first member for rotatably driving an output member thereof at a reduced ratio relative to the first member, and a clutch sleeve supported for rotation with the second member and which is movable between a first position for coupling the second member to the output member of the planetary gear assembly for rotatably driving the second member at the reduced ratio, and a second position for coupling the second member for rotation with the first member. The power transfer apparatus further includes a synchronizer for causing speed synchronization between the first and second members in response to movement of the clutch sleeve from the first position to said second position.

  Recently Added Patents
Creation and use of test cases for automated testing of media-based applications
Antimicrobial polysiloxane materials containing metal species
Device to facilitate moving an electrical cable of an electric vehicle charging station and method of providing the same
Mobile camera localization using depth maps
Account and customer creation in an on-line banking model
Using sets of OTDR receive fibers with different lengths of marker events to verify optical fiber connectivity
High throughput thin film characterization and defect detection
  Randomly Featured Patents
Apparatus for spreading open cross-bottoms on tubular members
Continuous method for bleaching with peroxide
Cosmetic brush
Electrically heated soldering device
Shock absorber for vehicles with pneumatic suspension, more especially for heavy vehicles
Cam system for circular knitting machines
Lithographic plate imaging system to minimize plate misregistration for multicolor printing applications
Method for detecting erroneously programmed memory cells in a memory
Method of preparing intermediates for retroviral protease inhibitors
Semiconductor memory device