Heat pipe switch

Details Heat pipe switch Heat pipe switch

1975-10-06

1977-05-31

Davis, Jr., Albert W.

Heat exchange

Movable heating or cooling surface

Rotary drum

165105, 237 9R, F28D 1500

Patent

active

040263487

ABSTRACT:
Thermal energy transfer apparatus having a controllably variable thermal conductance comprises a heat pipe having a capillary wick structure therein, a circulating supply of working fluid which is controlled by a heater, and a thermostatic heater control which is responsive to the temperature of the hot end of the heat pipe. As working fluid condenses it is removed from the heat pipe. Liquid working fluid is recirculated into the heat pipe in discrete quantities by vapor bubble injection under the control of the heater and the heater control. If no fluid is injected into the heat pipe, the thermal conductance will decrease as condensate is removed. If fluid is injected into the heat pipe, thermal conductance will increase as fluid is supplied to the heat pipe.

REFERENCES:
patent: 2289879 (1942-07-01), Fiene
patent: 3776304 (1973-12-01), Auerbach
patent: 3934643 (1976-01-01), Laing

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