Cascaded pneumatic impulse separation system and valves therefor

Details Cascaded pneumatic impulse separation system and valves therefor Cascaded pneumatic impulse separation system and valves therefor

1989-03-17

1992-03-24

Chambers, A. Michael

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

13762414, 244134A, F16K 3140, B64D 1516

Patent

active

050980610

ABSTRACT:
A rapid acting valve capable of delivering a high pressure impulse of compressible fluid has a pilot section, and an output section. The output section is pressurized to approximately equilibrium with the inlet pressure during the load portion of the operating cycle. During the dump portion of the operating cycle, the pilot section and output section cooperate to provide extremely rapid full opening of the output section to release fluid under pressure from an accumulator through an output section piston seat. The valve is particularly suitable for use in combination with pneumatic impulse separation systems such as those employed for deicing aircraft surfaces. A plurality of valves may be arranged in series such that dumping of the first tier valve initiates dumping of one or more second tier valves in the series each of which in turn initiates dumping of one or more third tier valves, and so forth until all valves in the series have been actuated, each by its preceding valve.

REFERENCES:
patent: 3693916 (1972-09-01), Tritt et al.
patent: 4706911 (1987-11-01), Briscoe et al.
patent: 4747575 (1988-05-01), Putt et al.
patent: 4826108 (1989-05-01), Briscoe et al.
patent: 4865291 (1989-09-01), Briscoe et al.

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