Auxiliary power steering for motor vehicles

Details Auxiliary power steering for motor vehicles Auxiliary power steering for motor vehicles

1979-06-26

1982-05-18

Cohen, Irwin C.

Motors: expansible chamber type

With motive fluid valve

Contracting chamber exhaust valve controlled by expanding...

91452, 137106, 180132, F15B 13042

Patent

active

043299121

ABSTRACT:
A throttle valve biased to open position by a spring is interposed in the return line of a steering control valve in a booster steering system. The essential feature of the invention is that one face of the valve is exposed to feed pressure acting against a valve opening bias spring to produce the throttling effect in accordance with construction and design of the valve and the system in which it may be used. The invention is particularly intended for use with booster steering control valves in neutral or steering position and ensures throttling of return flow to the system sump only during a steering operation. The invention is usable in steering mechanisms such as shown in the patent to Wagner et al., U.S. Pat. No. 3,964,371.

REFERENCES:
patent: 2347238 (1944-04-01), Bennett
patent: 2845901 (1958-08-01), MacDuff
patent: 3058719 (1962-10-01), Beebee
patent: 3749112 (1973-07-01), Nishikawa et al.
patent: 3964371 (1976-06-01), Wagner et al.
patent: 4040438 (1977-08-01), Wilke

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