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:
Apr. 08, 2003

Filed:

Sep. 21, 2001
Applicant:
Inventors:

Katsuhiro Saito, Nishi-kasugai-gun, JP;

Masashi Inoue, Nishi-kasugai-gun, JP;

Yoshinori Watanabe, Nagoya, JP;

Akira Yoshikoshi, Nagoya, JP;

Kazuhiro Suzuki, Nishi-kasugai-gun, JP;

Yujiro Anai, Nagoya, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28F 2/702 ;
U.S. Cl.
CPC ...
F28F 2/702 ;
Abstract

The present invention relates to a heat exchanger in which a plate-shaped refrigerant flow portion which provides an internal refrigerant flow path by overlaying two flat plates formed by drawing and a cooling fin are alternately layered; and comprising an opening portion provided on each of the flat plates and which is connected with the refrigerant flow path; and a continuous space for the flow of the refrigerant which is provided by connecting the opening portions of adjacent refrigerant flow portions. The refrigerant which flows in the space is distributed to the respective refrigerant flow paths through the opening portions. The heat exchanger further comprises a means for improving the heat exchange capacity, and this means is, for example, a narrowing means which is provided at the upstream end part of the space in order to uniformly distribute the refrigerant to the refrigerant flow paths.


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