Control valve

Motors: expansible chamber type – Working member position feedback to motive fluid control – Electrical input and feedback signal means

Patent

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Details

91365, 91417R, 91433, 91461, F15B 1316

Patent

active

049381180

ABSTRACT:
A 3/2 proportional control valve is provided with an actuating piston which is subjected to the control pressure set in a pilot valve. The area relationships of the actuating piston are so chosen that at the actuating piston a high pressure gradient obtains and the adjustment dynamics of the regulating piston are increased.

REFERENCES:
patent: 3706322 (1972-12-01), Carlson
patent: 4089171 (1978-05-01), Hubbard
patent: 4543875 (1985-10-01), Imhof

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