Patent ID: 11892208
Assignee: ROLLS-ROYCE NORTH AMERICAN TECHNOLOGIES, INC.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A cooling apparatus comprising:
a source of cooling fluid that stores cooling fluid therein;
a first fluid flowpath in fluid communication with the source of cooling fluid to receive the cooling fluid from the source of cooling fluid, the first fluid flowpath including the following elements, in downstream flow sequence:
a subcooler having a first side in fluid communication with the first fluid flowpath and a second side configured to be disposed in thermal communication with the source of cooling fluid;
a flow control valve;
a primary evaporator assembly including at least one primary evaporator configured to be disposed in thermal communication with a primary heat load;
a pressure regulator operable to maintain a cooling fluid saturation pressure within the primary evaporator at a predetermined set point;
a second fluid flowpath coupled to the source of cooling fluid and configured pass a portion of the cooling fluid through the second side of the subcooler and return the portion of the cooling fluid to the first fluid flowpath downstream of the primary evaporator assembly, wherein the second fluid flowpath includes a flow restrictor located upstream of the subcooler and configured to expand the portion of the cooling fluid from liquid to vapor; and
a third fluid flowpath that conducts vapor from the source of cooling fluid to the first fluid flowpath at a location downstream of the primary evaporator assembly.