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
Electrowetting display devices with a reflective plate structure
Geographically self-labeling access points
Bi-level switching with power packs
Method and apparatus for sharing virtual workspaces
Advertising apparatus
Packet communication system and packet communication method, and node and user device
Image erasing apparatus and recording medium conveying method for image erasing apparatus
  Randomly Featured Patents
Multi-purpose inventory tag device and method
A/D, D/A Converter for PCM transmission system
Home network bridge-based communications method and apparatus
Verifying physical universal serial bus keystrokes
Foldable portable radio device
Universal controller expansion module system, method and apparatus
Ferrofluid compositions
Method and system of providing real-time site specific information
Linear induction converters
Manufacturing process of cellulose viscose with low viscosity