Machine element or mechanism – Gearing – Interchangeably locked
Patent
1993-12-20
1995-07-18
Marmor, Charles A.
Machine element or mechanism
Gearing
Interchangeably locked
475132, 475133, 477126, 477131, F16H 6118
Patent
active
054331242
ABSTRACT:
A hydraulic latch for directing line pressure alternately to a forward drive circuit and a reverse drive circuit includes three solenoid-operated select valves that direct pressure from a line pressure source to a reverse drive select valve, a forward drive select valve, and two coaxial range control valves. The two drive select valves are interconnected to form a hydraulic latch whose outputs are connected to the range control valve such that either the forward drive friction elements are pressurized, the reverse drive friction elements are pressurized, or none of the friction elements are pressurized.
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Ford Motor Company
Jensen Mathan O.
Marmor Charles A.
May Roger L.
McKenzie Frank G.
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