The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 18, 2022

Filed:

Dec. 04, 2017
Applicant:

Raytheon Company, Waltham, MA (US);

Inventors:

James S. Wilson, Hurst, TX (US);

Alex E. Ockfen, Tucson, AZ (US);

Adolfo Lozano, III, Dallas, TX (US);

Amanda S. Rickman, Garland, TX (US);

Assignee:

Raytheon Company, Waltham, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 19/00 (2006.01); H01L 23/427 (2006.01); H05K 7/20 (2006.01); F28F 13/00 (2006.01); F25B 19/04 (2006.01);
U.S. Cl.
CPC ...
F25B 19/00 (2013.01); F25B 19/04 (2013.01); F28F 13/00 (2013.01); H01L 23/427 (2013.01); H05K 7/2039 (2013.01); H05K 7/20327 (2013.01); F25B 2321/0252 (2013.01); F25B 2600/13 (2013.01);
Abstract

An apparatus includes a heat sink configured to receive thermal energy from one or more heat sources. The heat sink includes a local reservoir 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 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.


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