Device for cooling a satellite-mounted travelling-wave tube
AssigneeMatra Marconi Space France
InventorBertrand Poulain
Life of this patent
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Abstract
The cooling device for cooling a travelling-wave tube is deigned to be mounted on board a geostationary telecommunications satellite. The collector of the tube is thermally insulated from the remainder of the tube and it is thermally connected to a radiator by means of a link part passing through a north or a south panel of the satellite structure and insulated from the panel.
Claims7
In a telecommunication satellite having a structure and containing a travelling-wave tube having a collector thermally insulated from the remainder of the travelling-wave tube,
- a cooling device including:
- an external radiator, located externally of said structure and in an orientation such that it dissipates heat by radiating it into space;
- heat conducting means thermally insulated from the structure of the satellite and thermally connecting said radiator to said collector;
- and
- heat pipe means connecting the remainder of the travelling wave tube to said structure.
A geostationary telecommunications satellite stabilized about three axes, having:
- a structure comprising a north panel and a south panel;
- travelling-wave tubes each carried by an internal face of at least one of said north panel and south panel;
- flat radiators carried by an external face of said at least one of said panels at a distance from said at least one of said panels and thermally isolated from the panels;
- and
- interface parts thermally insulated from the panels, connecting said flat radiators to respective said collectors;
- wherein each of said flat radiators comprises a planar plate parallel to an external surface of the structure and having dimensions which are proportioned to the power of the tube for maintaining said collector at a temperature below 220.degree. C. and higher than that of the remainder of the travelling-wave tube.
Dependencies are inferred from the claim text.