Patent ID: 11913690
Assignee: HILL PHOENIX, INC.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 4:
5. The refrigeration system of claim 4, wherein the controller is configured to perform the liquid refrigerant return process by:
closing the one or more transfer valves to prevent the vapor refrigerant from exiting the liquid/vapor separator through the vapor refrigerant outlet;
connecting the liquid/vapor separator to a high pressure source to pressurize the vapor refrigerant and liquid refrigerant within the liquid/vapor separator; and
opening a liquid refrigerant return valve fluidly coupled to the liquid refrigerant outlet of the liquid/vapor separator, causing the liquid refrigerant within the liquid/vapor separator to exit the liquid/vapor separator via the liquid refrigerant outlet and return to the evaporator.