Differential device for vehicle

Details Differential device for vehicle Differential device for vehicle

1991-10-29

1993-03-23

Braun, Leslie A.

Planetary gear transmission systems or components

Differential planetary gearing

Planet pinion is worm gear

475226, F16H 145

Patent

active

051959348

ABSTRACT:
A differential device includes a pair of propeller shafts extending into a housing, a pair of side gears connected respectively to the propeller shafts, and at least one pair of element gears having screw gear portions meshing respectively with screw gear portions of the side gears. The element gears have respective coupling gear portions meshing with each other. In order to improve a drive torque distribution, either pitch diameters or helix angles of the screw gear portions of the two side gears are different from each other. In order to reduce the overall diameter of the differential device, a spline portion and the screw gear portion of at least one of the two side gears are spaced from each other along an axis of the side gear, the spline portion serving to connect the side gear to the mating propeller shaft.

REFERENCES:
patent: 1294040 (1917-04-01), Brown
patent: 3735647 (1973-05-01), Gleasman
patent: 3884096 (1975-05-01), Gleasman
patent: 4491035 (1985-01-01), Gleasman et al.
patent: 4750483 (1988-06-01), Stritzel
patent: 4954122 (1990-09-01), Nakao et al.

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