公开(公告)号：WO2019112656A1

公开(公告)日：2019-06-13

申请号：PCT/US2018/047937

申请日：2018-08-24

Applicant: RAYTHEON COMPANY

Inventor： WILSON, James S. ,  OCKFEN, Alex E. ,  LOZANO III, Adolfo ,  RICKMAN, Amanda S.

IPC: F25B19/04 ,  H01L23/427

Abstract: An apparatus includes a heat sink (110, 310, 510, 610, 706) configured to receive thermal energy from one or more heat sources (102, 202a-202c, 502). The heat sink includes a local reservoir (114) configured to hold a liquid coolant, and the heat sink is configured to pass the thermal energy into the liquid coolant in the local reservoir in order to vaporize at least some of the liquid coolant. The apparatus also includes a membrane (122, 706) configured to allow vaporized coolant to pass through the membrane out of the local reservoir into an ambient environment and to prevent unvaporized coolant from passing through the membrane. The membrane is thereby configured to provide passive flow control for the liquid coolant. The membrane could include a vapor-permeable and liquid-repelling membrane. The membrane can also be configured to hold the liquid coolant in the local reservoir against one or more surfaces of the heat sink.