Valve for developing variable output pressure

Details Valve for developing variable output pressure Valve for developing variable output pressure

1980-01-17

1981-09-08

Nilson, Robert G.

Fluid handling

With leakage or drip collecting

137495, 13750514, 13750537, 137599, G05D 1606

Patent

active

042879094

ABSTRACT:
A valve is disclosed which receives a fluid such as gas at an input port and varies the fluid pressure at the output port in response to an electrical control signal. In one embodiment, a magnet-coil combination responds linearly to a control current to vary the bias on a fluid restriction device to thereby modify the pressure of the fluid at the outlet. In another embodiment, a flexible bellows transmits the force generated by the magnet-coil combination to the fluid restriction device.

REFERENCES:
patent: 2031478 (1936-02-01), Gray
patent: 2147850 (1939-02-01), MacLean
patent: 2174515 (1939-10-01), Hughes
patent: 2696350 (1954-12-01), Cretzler
patent: 2982300 (1961-05-01), Jackson
patent: 3053497 (1962-09-01), Fraenkel
patent: 3256900 (1966-06-01), Estes
patent: 3635240 (1972-01-01), Vischulis

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