Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
Patent
1978-10-11
1981-06-16
Husar, C. J.
Machine element or mechanism
Gearing
Plural power paths to and/or from gearing
74714, F16H 142, F16H 144
Patent
active
042729939
ABSTRACT:
A planetary gear differential has a pair of side gears and two pairs of composite planet gears rotatably carried by a rotatable carrier. Each pair of composite planet gears includes meshing impeller gears and drive gears meshing respective side gears. Hydraulic control means for limiting the differential speed of the side gears comprises two closed hydraulic circuits located in the carrier. Each circuit includes a gear pump chamber having the meshing impeller gears of one pair of composite planet gears disposed therein, and a pair of opposed unidirectional restrictions located in conduits leading from opposite radial sides of the gear pump chamber to an inner annular sump common to both circuits.
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Fodale F. J.
General Motors Corporation
Husar C. J.
McKenzie Frank
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