Unidirectional seal for flow passages

Details Unidirectional seal for flow passages Unidirectional seal for flow passages

1977-08-08

1978-10-03

Dority, Jr., Carroll B.

Combustion

Structural installation

98119, 126307A, 138 39, 138 44, F23D 1320

Patent

active

041181735

ABSTRACT:
A seal for flow passages has directional characteristics allowing gases or fluids to flow freely in one direction while restricting the flow in the opposite direction. The seal includes a flow diverter cone (or other inclined surface) which is spacedly mounted on a flow inverter cone (or other inclined surface) in a passage to effectively reverse the direction of undesired counterflow of gases without restricting normal gas flow. The seal has no moving parts but serves as an effective aerodynamic valve. Addition of this seal to the stack of a flare system, or to other chimneys, restricts the flow of air into the stack while allowing the waste gases to be exhausted with negligible restriction.

REFERENCES:
patent: 2537091 (1951-01-01), Rodman
patent: 2670011 (1954-02-01), Bertin et al.
patent: 3662669 (1972-05-01), Cullinane
patent: 3730673 (1973-05-01), Straitz

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