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:
Dec. 05, 2017

Filed:

Oct. 13, 2015
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

William J. Anderl, Rochester, MN (US);

Bret P. Elison, Rochester, MN (US);

Phillip V. Mann, Rochester, MN (US);

Arvind K. Sinha, Rochester, MN (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28D 15/00 (2006.01); F28D 7/10 (2006.01); F28F 27/00 (2006.01); F28D 15/06 (2006.01); F16K 31/00 (2006.01); F28D 15/02 (2006.01); F28F 3/02 (2006.01);
U.S. Cl.
CPC ...
F28D 15/06 (2013.01); F16K 31/002 (2013.01); F28D 15/0275 (2013.01); F28F 3/02 (2013.01); F28D 2015/0216 (2013.01);
Abstract

A heat pipe includes one or more reservoirs of liquid that are closed at lower temperatures and open at higher temperatures. The opening of the reservoirs at higher temperatures caused by higher power levels dynamically increases the amount of liquid in the heat pipe, which increases performance of the heat pipe at higher power levels. As the heat pipe cools, the liquid condenses and flows back into the reservoirs. As the heat pipe continues to cool, the reservoirs close. The result is a heat pipe that is more efficient at lower power levels and still maintains high efficiency at higher power levels due to the demand-based charging of the liquid based on temperature.


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