Two-stage flow control valve for a power steering system

Details Two-stage flow control valve for a power steering system Two-stage flow control valve for a power steering system

1977-08-03

1979-01-23

Geoghegan, Edgar W.

Motors: expansible chamber type

With motive fluid valve

Self-acting valve

60459, 138 45, 180141, F15B 1108

Patent

active

041354362

ABSTRACT:
A power steering pump flow and pressure control valve comprising a valve spool located on the high pressure side of the pump and on the upstream side of the vehicle steering gear. The valve includes a spool slidably situated in a valve chamber and a metering pin that is moved relative to the spool to either a first operating position or a second operating position. The metering pin registers with a flow control orifice located at one end of the valve chamber to provide a high flow or a low flow depending upon its operating position.

REFERENCES:
patent: 3163006 (1964-12-01), Nuss et al.
patent: 3349714 (1967-10-01), Grenier

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