Reed valve having variable length petal

Details Reed valve having variable length petal Reed valve having variable length petal

1990-05-17

1991-04-30

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

123 73V, 137856, F16K 1516

Patent

active

050109189

ABSTRACT:
A reed valve for a passage defined by an inner surface in an engine comprises a cage mounted across the passage. The cage has a cage port, an upstream side and a downstream side. The read valve includes a flexible petal having a fixed portion connected to the cage enabling the petal to flex away from the cage in a cantilevered manner. The petal overlies the cage port to allow fluid flow therethrough from the upstream side to the downstream side by flexing away from the cage, and to obstruct fluid back-flow in the reverse direction by seating against the cage. The read valve further comprises an inflatable member adjoining a portion of the petal which flexes away from the cage. The petal is sandwiched between the inflatable member and cage so that inflation of the inflatable member obstructs the flexing of the petal away from the cage to reduce the effective length of the petal.

REFERENCES:
patent: 4643139 (1987-02-01), Hargreaves
patent: 4748944 (1988-06-01), Iida

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