Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
Patent
1985-01-04
1987-05-26
Braun, Leslie
Machine element or mechanism
Gearing
Plural power paths to and/or from gearing
74710, F16H 138
Patent
active
046675353
ABSTRACT:
A limited slip differential for a vehicle having a gear carrier mounted for rotation about its longitudinal axis. A pin extends within the carrier and has it axis transverse to the carrier axis, the pin being mounted by its ends in the carrier. First and second worm wheels are rotatably mounted on the pin. Four helically toothed worm members are rotatably mounted in the carrier with the axis of each worm member extending longitudinally in the carrier. The first and third worm members mesh with a one of the worm wheels on opposite portions of the circumference thereof, and the second and fourth worm members mesh with the other worm wheel on opposite portions of the circumference thereof. A spacer block is mounted on the pin and has on two opposed faces thereof worm wheel locating surfaces each to engage a first side surface of a respective one of the worm wheels. The carrier has two further worm wheel locating surfaces to engage second side surfaces of the worm wheels. First and second helical sun gears are coaxial with the carrier axis, each sun gear being rotatably mounted with respect to the carrier. The first sun gear meshes with extension portions of the helical teeth on the second and third worm members, and the second sun gear meshes with extension portions of the helical teeth on the first and fourth worm members. The spacer block spaces the sun gears from each other.
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Braun Leslie
Diehl Dwight G.
Jack Knight (Developments) Limited
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