Switchable heat pipe assembly

Details Switchable heat pipe assembly Switchable heat pipe assembly

1975-07-02

1977-02-15

Davis, Jr., Albert W.

Heat exchange

Movable heating or cooling surface

Rotary drum

165105, F28D 1500

Patent

active

040077772

ABSTRACT:
The heat pipe assembly is formed into an H-shape or a Y-shape. The H-shaped configuration comprises two heat pipes, each having condenser and evaporator sections with wicking therein coupled by a tube with wick at their evaporator sections. The Y-shaped configuration utilizes a common evaporator section in place of the two evaporator sections of the H-shaped configuration. In both configurations, the connection between the vapor spaces of the two heat pipes equalizes vapor pressure within the heat pipes. Although both heat pipes have wicks, they have sufficient fluid only to saturate a single pipe. If heat is applied to the condenser section of one of the pipes, this heat pipe becomes inoperative since all the fluid is transferred to the second pipe which can operate with a lower thermal load.

REFERENCES:
patent: 3587725 (1971-06-01), Basiulis
patent: 3621906 (1971-11-01), Leffert
patent: 3776304 (1973-12-01), Auerbach
patent: 3818980 (1974-06-01), Moore, Jr.
Eastman, G. Y. Heat Pipe--A Progress Report RCA/Electronic Components, Lancaster, Pa. (17604), 12/1969, Paper No. ST-4048.

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