Servo valve

Details Servo valve Servo valve

1998-09-23

2000-02-22

Rivell, John

Valves and valve actuation

With non-fluid retarder

91375A, 13762523, F15B 908, F16K 3100

Patent

active

060270969

ABSTRACT:
The present invention concerns a servo valve, in particular for hydraulic power steering systems of motor vehicles, in the form of a rotary slide valve having a rotary slider and a control bushing which coaxially encloses the latter and is rotatable about a rotation axis, against spring force, relative to the rotary slider. The present invention includes a particular spring arrangement which has two helical compression springs lying in a radial plane of the rotation axis.

REFERENCES:
patent: 4966192 (1990-10-01), Umeda
patent: 5033505 (1991-07-01), Eidsmore
patent: 5680804 (1997-10-01), Eberhart
patent: 5797309 (1998-08-01), Eberhart
patent: 5851006 (1998-12-01), Spillner et al.
patent: 5937900 (1999-08-01), Pfeifer

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