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:
Nov. 26, 2002

Filed:

Jul. 10, 2001
Applicant:
Inventors:

Katsuhiro Saito, Nishi-kasugai-gun, JP;

Masashi Inoue, Nishi-kasugai-gun, JP;

Yoshinori Watanabe, Nagoya, JP;

Akira Yoshikoshi, Nagoya, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28F 9/02 ;
U.S. Cl.
CPC ...
F28F 9/02 ;
Abstract

A laminated type heat exchanger including a refrigerant inlet tank and a refrigerant outlet tank. The inlet tank has inlet chambers and a refrigerant passage passing through the inlet chambers, and the outlet tank has outlet chambers and a refrigerant passage passing through the outlet chambers. The heat exchanger includes refrigerant pipes each having one end which is connected to the inlet chamber and the other end which is connected to the outlet chamber, and a refrigerant gate portion for flowing the refrigerant into the inlet tank and from the outlet tank. The heat exchanger also includes a dispersion pipe which is inserted in the inlet tank refrigerant passage. The dispersion pipe is about ⅓ to ¼ of the length of the inlet tank refrigerant passage, and the sectional area of the dispersion pipe is smaller than that of the inlet tank refrigerant passage. Dispersion holes are formed at the opposite side of the dispersion pipe against the refrigerant pipe, and the size of the dispersion holes increases with the increase in the distance from the gate portion.


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