Fluid handling – Systems – Multi-way valve unit
Patent
1977-04-07
1978-10-31
Cohan, Alan
Fluid handling
Systems
Multi-way valve unit
91375A, 251229, F15B 91
Patent
active
041228669
ABSTRACT:
Hydraulic control valve with compact radial and axial dimensions for power steering gear in which a hydraulically balanced and centralized valve element is linearly shifted by internal crank elements in response to rotation of an input shaft for controlling actuation of a power cylinder to effect powered left and right steering turns. A valve and seal ring is interposed between two face seals carried by the valve element so that operating fluid is selectively supplied to and exhausted from left and right turn steering lines.
REFERENCES:
patent: 3733967 (1973-05-01), Duffy
Cohan Alan
General Motors Corporation
White Charles R.
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