Power steering control valve mechanism

Details Power steering control valve mechanism Power steering control valve mechanism

1990-12-14

1992-07-21

Marmor, Charles A.

Motor vehicles

Surface effect vehicles

Dynamic seal or fluid curtain

180149, 91375A, 74388PS, B62D 506

Patent

active

051314860

ABSTRACT:
In a hydraulic pressure switch mechanism connected between a steering shaft and a rack, an input shaft is covered with a balance sleeve, to form a sealing portion. The balance sleeve is covered with a valve outer spool, thereby forming a variable orifice. The hydraulic pressure switch mechanism requires no valve inner spool. The hydraulic pressure switch mechanism has a small and simple structure and provides secure hydraulic pressure control, thus contributing to reduction in manufacturing cost.

REFERENCES:
patent: 4198898 (1980-04-01), Elser
patent: 4469342 (1984-09-01), Millard
patent: 4561521 (1985-12-01), Duffy
patent: 4582086 (1986-04-01), Bacardit
patent: 5029513 (1991-07-01), Duffy

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