Pressure relief valve for the working pressure of a servo-steeri

Details Pressure relief valve for the working pressure of a servo-steeri Pressure relief valve for the working pressure of a servo-steeri

1978-03-06

1981-06-16

Maslousky, Paul E.

Motors: expansible chamber type

With motive fluid valve

Plural separately controlled waste passages for single...

91372, 91434, 91451, F15B 1314, F15B 13042

Patent

active

042730309

ABSTRACT:
A pressure relief valve for the working pressure of a servo-steering mechanism of a vehicle, with a pressure medium connection between a high pressure connection adapted to be placed under a working pressure and a zero connection adapted to be placed under a lower pressure, whose valve-adjusting member is retained in a normal rest position closing off the pressure medium connection during normal conditions by a control device operating as a function of an operating magnitude of the servo-steering mechanism and which upon exceeding a critical value of the operating magnitude is adapted to be displaced into a by-pass position more or less opening up the pressure medium connection; the control device thereby operates in dependence on the load of the servo-steering mechanism while the by-pass position is independent of the angle of rotation of the steering shaft of the servo-steering mechanism.

REFERENCES:
patent: 3532027 (1970-10-01), MacDuff
patent: 3633462 (1972-01-01), Goscenski
patent: 3922953 (1975-12-01), Strauff
patent: 3978770 (1976-09-01), Strauff
patent: 4022110 (1977-05-01), Strauff
patent: 4051766 (1977-10-01), Strauff

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