Bellows sealing arrangement

Details Bellows sealing arrangement Bellows sealing arrangement

1976-12-02

1979-01-16

Myhre, Charles J.

Heat exchange

Expansion and contraction relieving or absorbing means

Relieving or absorbing means supports temperature modifier...

126 91A, 165177, 432223, F28F 700

Patent

active

041344499

ABSTRACT:
A bellows arrangement for forming a gas leakage resistant pressure seal between ceramic heat exchange tubes has an elongated metallic bellows defining a central passageway with first and second ends. A metallic tube passes through the bellows and freely moves with respect to the second end of the bellows while defining a gas chamber between the tube and bellows. Axial expansion of the bellows under the influence of the internal pressure when such pressure is higher than the external pressure which may be the atmosphere acts to apply a force at the interface between the bellows assembly and the ceramic heat exchange tube which is proportional to the internal pressure of the heat exchange tube, thereby accommodating movement of the heat exchange tube and providing a pressure seal that is leak resistant.

REFERENCES:
patent: 2111484 (1938-03-01), Woodson
patent: 2472497 (1949-06-01), Stookey

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