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.
Patent No.:
Date of Patent:
Jul. 20, 2010
Filed:
Oct. 23, 2007
Robert Ernst Meyer, Iii, Rochester, MN (US);
Cary Michael Huettner, Rochester, MN (US);
Joseph Kuczynski, Rochester, MN (US);
Timothy Tofil, Rochester, MN (US);
Robert Ernst Meyer, III, Rochester, MN (US);
Cary Michael Huettner, Rochester, MN (US);
Joseph Kuczynski, Rochester, MN (US);
Timothy Tofil, Rochester, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A heat exchanger for use, e.g., in a rear door of a server rack in a computer room, made up of pipes clad with a layer of a phase change material, such as a paraffin, so that latent heat is absorbed in the conversion from the solid to the liquid state. Preferably, each pipe in turn is opened by a control valve and chilled coolant flows through the pipe until the phase change material reverts back to the solid state. Then, the control valve is again closed, and the phase change material is further heated by waste heat so that it is melted once more. Preferably, the control valve for only one pipe at a time is opened, so that latent heat is being absorbed by the phase change material around all pipes but one.