Back to results
US 4,274,479 AGranted
Sintered grooved wicks
AssigneeThermacore, Inc.
InventorGeorge Y. Eastman
Life of this patent
Estimating the term…
Abstract
A heat pipe capillary wick constructed from a sintered metal cylinder formed in close contact with the inner diameter of the heat pipe casing, and containing longitudinal grooves on the wick's inner surface, adjacent to the vapor space. The grooves provide longitudinal capillary pumping while the high capillary pressure of the sintered wick provides liquid to fill the grooves and assure effective circumferential distribution of liquid in the heat pipe.
Claims5
A heat pipe comprising:
- an outer casing means forming a vacuum tight enclosure;
- and
- a wick means constructed from sintered material in intimate surface contact with the inner surface of the casing means, said wick means containing at least one longitudinal capillary groove located on the surface of the wick means adjacent to an open volume intended as the heat pipe vapor space and designed to provide longitudinal capillary pumping of the liquid.
Dependencies are inferred from the claim text.