Two member boost stage valve for a hydraulic control

Details Two member boost stage valve for a hydraulic control Two member boost stage valve for a hydraulic control

1983-02-28

1985-08-27

Favors, Edward G.

Fluid handling

Systems

Multi-way valve unit

91433, 13759614, E03B 300

Patent

active

045372209

ABSTRACT:
The present invention is directed to a two stage hydraulic servo amplifier wherein the boost stage valve comprises two separate valve members, each individually controlling one of a pair of controlled outputs and wherein the position of each valve member is modulated by inputs from a pilot stage acting against separate biasing forces for each valve member.

REFERENCES:
patent: 2880708 (1959-04-01), Hayner
patent: 3064627 (1962-11-01), Blanton
patent: 3405727 (1968-10-01), Hill
patent: 3411536 (1968-11-01), Tennis
patent: 3580281 (1971-05-01), Petersen
patent: 3771424 (1973-11-01), Allen et al.
patent: 3841345 (1974-10-01), Cryder
patent: 3854382 (1974-12-01), Walters et al.
patent: 4145957 (1979-03-01), McClockin
patent: 4362182 (1982-12-01), Sjolund
patent: 4368750 (1983-01-01), Burton
"Ingenieur Digest" pp. 112 and 113, Apr., 1970, with translation.

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