Pressure balanced heat pipe

Details Pressure balanced heat pipe Pressure balanced heat pipe

1987-06-22

1988-11-29

Davis, Jr., Albert W.

Heating

Boiler and work heating furnace, pot or oven

Having means utilizing generated steam in heating work

165 32, 16510427, F27B 1902, F28D 1502

Patent

active

047878436

ABSTRACT:
Disclosed is a heat pipe particularly suited for isothermal transfer of heat in high temperature, high pressure operation such as the growing of semiconductor crystals. The heat pipe has a stem communicating with its lower end, a cooler surrounding a portion of the stem, and an expansible bellows connected to the stem. The stem and the expansion chamber formed by the bellows accommodate displaced liquid working fluid to balance pressure within the heat pipe with ambient pressure outside the heat pipe. This avoids the need for complex, multi-layer structures or high strength materials in the heat pipe walls.

REFERENCES:
patent: 3517730 (1970-06-01), Wyatt
patent: 3621906 (1971-11-01), Leffert
patent: 3933198 (1976-01-01), Hara et al.
patent: 3943964 (1976-03-01), Asselman et al.
patent: 3947244 (1976-03-01), Lazaridis
patent: 4073284 (1978-02-01), Laing
patent: 4387762 (1983-06-01), Rinderle

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