Accession Number : ADD014258

Title :   Expandable Radiator.

Descriptive Note : Patent, Filed 11 Oct 88, patented 27 Jun 89,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Reinmuller, Donald L

Report Date : 27 Jun 1989

Pagination or Media Count : 5

Abstract : An expandable heat rejection system for radiating heat from a source of heat on a spacecraft or like vehicle is described and comprises a fluid heat exchange medium in operative circulating heat exchange relationship with the source for absorbing heat by evaporation of a liquid phase or the medium, an elongate inflatable sleeve defining an expandable and collapsible volume closed at a first end and including an inlet and outlet at a second end and further defining a condensation surface on the inner surface of the sleeve and a heat radiating surface on the outer surface of the sleeve, a reel attachable to the vehicle and operatively attached to the first end of the sleeve for selectively winding and unwinding the sleeve in response to pressure generated within the system. Pat-165-41. (jes)

Descriptors :   *SPACECRAFT, CIRCULATION, COLLAPSIBLE STRUCTURES, CONDENSATION, EXCHANGE, EXTERNAL, FLUIDS, HEAT, HEAT TRANSFER, INFLATABLE STRUCTURES, INTERNAL, LIQUID PHASES, PRESSURE, RADIATION, RESPONSE, SLEEVES, SOURCES, SURFACES, THERMAL RADIATION, VOLUME, WINDING

Subject Categories : Manned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE