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. 21, 1999

Filed:

May. 20, 1998
Applicant:
Inventors:

Tadayoshi Terao, Toyoake, JP;

Kazuo Kobayashi, Kariya, JP;

Hiroshi Tanaka, Toyoake, JP;

Kiyoshi Kawaguchi, Toyota, JP;

Assignee:

Denso Corporation, Kariya, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K / ;
U.S. Cl.
CPC ...
361699 ; 361700 ; 257714 ; 257715 ; 165 804 ; 16510421 ; 16510433 ; 622592 ;
Abstract

In a cooling apparatus, a radiating part mounted on a refrigerant tank is made by stacking refrigerant tubes and fins alternately. A first header and a second header are provided at the ends of the refrigerant tubes. When the cooling apparatus is used in a vertical attitude, the first header is positioned above the liquid surface of refrigerant inside the refrigerant tank, and the second header is positioned below the liquid surface. Consequently, vapor refrigerant boiled by heat from a heat-emitting body attached to the refrigerant tank can flow through the first header into the refrigerant tubes, and liquid refrigerant liquefied in the refrigerant tubes can flow through the second header back to the refrigerant tank.


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