SPACECRAFT THERMAL CONTROL SYSTEM Russian patent published in 2016 - IPC B64G1/50 G01F23/00 

FIELD: aircraft engineering.

SUBSTANCE: invention relates to thermal control systems of, mainly, telecommunication satellites. Claimed system comprises the heat carrier circuit with electrically driven pump assembly and volume compensator. The fluid chamber of the latter is connected with the circuit nearby the electrically driven pump assembly inlet while the compensator gas bellow chamber is filled with two-phase working fluid. The permanent magnet is arranged at the bellow moving bottom while 2-4 reed switches are arranged regularly spaced apart to allow a simultaneous making. Said reed switches are connected with the spaceship telemetry system. The volume compensator fluid chamber contains the store of heat carrier in amount corresponding to half of its volume between adjacent reed switches. The volume compensator with reed switches can be coated with the vacuum barrier heat insulation.

EFFECT: reliable diagnostics and prediction of heat carrier availability in fluid circuit during the system operation in current and further periods.

2 cl, 2 dwg