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.:

US 7290597 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 06, 2007

Filed:

Oct. 27, 2004
Applicant:

Akihiko Takano, Konan, JP;

Inventor:

Akihiko Takano, Konan, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28F 9/02 (2006.01); F28D 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

An object of the present invention is to provide a specific relationship to be achieved by numerical values selected to sustain a desired level of coolant distributability as well as miniaturization and weight reduction for tanks in a heat exchanger adopting a structure in which the width of tubes therein is set smaller relative to the inner diameter of the tanks. In the heat exchanger according to the present invention, the inner diameter of the tanks is set small relative to the tube width, and with Dt representing an equivalent diameter at the passage section of the tanks and L representing the length of the longest path extending from an entrance to an open end of a tube, 15≦L/Dt≦42 is true.


Find Patent Forward Citations

Takano, Akihiko. (2007). Heat exchanger (U.S. Patent No. 7290597). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7290597

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