Power steering apparatus for vehicle

Details Power steering apparatus for vehicle Power steering apparatus for vehicle

1980-07-21

1983-01-25

Walton, George L.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

91467, 13762521, F15B 908

Patent

active

043696953

ABSTRACT:
A power steering apparatus for a vehicle comprising a valve housing provided with a rotary type valve body rotatable in one direction or another by a turning operation of a steering shaft. An oil supply port is connected to an oil pressure pump that is selectively connected to either of one or another of cylinder ports connected to respective left and right chambers of a power cylinder. The valve body is provided with an intermediate partition plate extending into an oil pressure reaction chamber in the valve housing to divide the chamber into areas on opposite sides of the partition plate. The resultant pair of areas extend respectively on either side in the turning direction of the valve body, and the respective areas are connected to one or the other of the cylinder ports.

REFERENCES:
patent: 3360932 (1968-01-01), Lech et al.
patent: 3616727 (1971-11-01), Suzuki et al.
patent: 3799201 (1974-03-01), Hansen et al.
patent: 3829258 (1974-08-01), Easton

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