Patent ID: 10436521

Abstract:
A system may include a pump, an evaporator, a condenser, an accumulator, a pump bypass line, a first valve, and a second valve. The system may operate in a powered-pump mode, in which the pump drives fluid circulation, the first valve prevents fluid circulation through the pump bypass line, the pump pumps liquid from the accumulator to the evaporator, gas exiting the evaporator flows to the condenser, liquid exiting the evaporator flows through the second valve to the accumulator, and liquid exiting the condenser flows to the accumulator. The system may operate in a passive-capillary mode, in which capillary pressure in the evaporator drives fluid circulation, the first valve prevents fluid circulation through the pump, liquid flows from the accumulator, through the pump bypass line, and to the evaporator, gas exiting the evaporator flows to the condenser, the second valve is closed, and liquid exiting the condenser flows the accumulator.