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:
May. 24, 2005

Filed:

Dec. 26, 2001
Applicant:

Soichi Kato, Saitama, JP;

Inventor:

Soichi Kato, Saitama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28F009/02 ;
U.S. Cl.
CPC ...
Abstract

A heat exchanger provided with tubesthrough which a medium flows and tanksto which the ends of the tubes are connected to perform heat exchange of the medium with heat conducted to the tubes, wherein the tanks each provided with an end platehaving holesfor connection of the ends of the tubes and a tank plateto which the end plate is fitted; and when it is assumed that a cross section of the tank in its longitudinal direction has a passage area X and a total wetted perimeter length Y for the medium, they have a relationship of X=a·Y/4 π and 0.9≦a<1.0.


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