Deployable radiators for spacecraft
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United States of America Patent
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Aug 27, 2002
Grant Date -
N/A
app pub date -
Jul 17, 1997
filing date -
Jul 31, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A limiting feature in spacecraft such as communication satellites is becoming the amount of surface such as 5, 6 available for dissipating waste heat from the electrical equipment in the satellite. The invention provides a deployable radiator 11 which carries a number of capillary pumped loops consisting of an evaporator, an outward limb and a return limb. The panel 11 is rolled up to coil the elements prior to launch, and unrolled when in orbit. The outward and return lengths of tube act as condenser for the capillary pumped loop, transport the heat over the radiating panel 11 and also provide the spring force for the panel to unroll.
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