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
Control of a scrollable context menu
Semaphorin 7A plays a critical role in TGF-.beta..sub.1-induced pulmonary fibrosis and alveolar destruction
Apparatus, device and method for determining alignment errors
OxyVu-1 hyperspectral tissue oxygenation (HTO) measurement system
Gripping cover for grab bar
Anti-biofilm intravascular catheter
Light emitting device
  Randomly Featured Patents
Gas-producing device
Polymeric mordant containing nitrogen-coordinating ligand for metallizable dyes
Polymer electrolyte battery
Semiconductor processing system with robotic autoloader and load lock
Method and apparatus for preventing incorrect fetching of an instruction of a self-modifying code sequence with dependency on a bufered store
Heater for top portions of containers
Synthetic antigen for the detection of AIDS-related disease
In-line coating and curing a continuously moving welded tube with an organic polymer
Angled cargo discharge gate