HIGH-TEMPERATURE HEAT PIPE Russian patent published in 2003 - IPC

FIELD: power and thermal physics. SUBSTANCE: the invention contains a sealed body heated in the zone of evaporation and cooled in the zone of condensation, installed inside the body near the inner wall of the body is a capillary structure, at least part of which in the initial state is filled with a working medium of alkali metal of lithium, or sodium, or potassium chemically active relative to the oxygen of the external vacuum medium, the body is made of metal that is hetero-active relative to the oxygen of the external vacuum medium, and the outer surface of the body, at least in the zone of condensation, has a coating with a rough outer surface of material possessing a low carrying capacity of the oxygen of the external vacuum medium, selected as hetero-active metal relative to the oxygen of the external vacuum medium is titanium or its alloy, and chrome-nickel spinel is selected as material possessing a low carrying capacity of the oxygen of the external vacuum medium. EFFECT: enhanced operating temperature of the invention with simultaneous provision of long serviceability. 3 cl, 1 dwg