Pilot-controlled valve for braking or speed limitation in a hydr

Details Pilot-controlled valve for braking or speed limitation in a hydr Pilot-controlled valve for braking or speed limitation in a hydr

1983-07-27

1989-08-08

Smith, Leonard E.

Motors: expansible chamber type

With motive fluid valve

Contracting chamber exhaust valve controlled by expanding...

91461, F15B 13042, F16K 2000

Patent

active

048542210

ABSTRACT:
A valve for retaining a jack which retains a drive load. The braking valve includes a pressure reducing valve and safety valve, one of which ensures that the pressure in the chamber is retained, while the other modulates the pilot-control pressure P.sub.p. Thus, at each moment, the pilot-control pressure P.sub.p is adjusted to the value of the retaining pressure P.sub.l.

REFERENCES:
patent: 4244275 (1981-01-01), Smilges
patent: 4342256 (1982-08-01), Andersen et al.
patent: 4364304 (1982-12-01), Anderson et al.
patent: 4470339 (1984-09-01), Tardy
patent: 4531449 (1985-07-01), Reith

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