Machine element or mechanism – Gearing – Nonplanetary gearing differential type
Patent
1998-09-02
1999-10-12
Wright, Dirk
Machine element or mechanism
Gearing
Nonplanetary gearing differential type
F16H 4800
Patent
active
059641266
ABSTRACT:
A hydraulic coupling (38) for coupling a casing (46) and a pair of axle half shafts (40) of an auxiliary drive axle (36) of a vehicle drivetrain (22) includes a housing (44) for containing hydraulic fluid and the casing (44) rotatively mounted within the housing. A clutch (76) extends between the casing (46) and each of the axle half shafts (40) and is actuable to transfer torque therebetween by the operation of a pair of hydraulic pumps (90) that provide pumped hydraulic fluid to a pair of piston chambers (110) whose pistons (120) actuate the clutch. An outlet port (122) of each piston chamber (110) and an associated temperature compensated valve (124) and a pressure relief valve (126) of each piston chamber control the clutch actuation.
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McLaren Automotive Group, Inc.
Wright Dirk
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