Motors: expansible chamber type – Working member position feedback to motive fluid control – Electrical input and feedback signal means
Patent
1989-02-08
1990-07-03
Look, Edward K.
Motors: expansible chamber type
Working member position feedback to motive fluid control
Electrical input and feedback signal means
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
Volpert Wolfgang
Wolfges Hans
Look Edward K.
Mannesmann Rexroth GmbH
Ryznic John E.
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