Pressure-reducing valve, and aircraft fueling system incorporati

Details Pressure-reducing valve, and aircraft fueling system incorporati Pressure-reducing valve, and aircraft fueling system incorporati

1991-09-30

1993-02-02

Cohan, Alan

Fluid handling

Line condition change responsive valves

Pilot or servo controlled

1376275, 13759618, G05D 1600, F16K 1110

Patent

active

051830744

ABSTRACT:
There is disclosed a pilot operated pressure-reducing valve system incorporating a main valve and a pilot valve, the latter being either near or remote from the main valve. The pilot and main valves cooperate with each other in such manner that the main valve will close very rapidly, this being important in aircraft fueling systems for example. Two related poppets are provided in the pilot valve, one such poppet being adapted to permit high flow for achievement of the substantially instantaneous main valve closure.

REFERENCES:
patent: 4609008 (1986-09-01), Anderson
patent: 5056865 (1991-10-01), Mooney

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