Cascaded pneumatic impulse separation system and valves...

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

B - Operations, Transporting

64

D

244/108, 251/4

B64D 15/16 (2006.01) F16K 31/40 (2006.01)

Patent

CA 1330217

CASCADED PNEUMATIC IMPULSE SEPARATION SYSTEM AND VALVES THEREFOR ABSTRACT A rapid acting valve capable of delivering a high pressure impulse of compressible fluid has a pilot section, an output section, and in certain embodiments at least one intermediate section. The output section and any intermediate sections are 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 sections of the valve cooperate to provide extremely rapid full opening of the output section to release fluid under pressure from an accumulator. 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 the preceding valve to which it is operably connected by conduit means.

607711

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