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. 28, 2017

Filed:

Jul. 06, 2015
Applicant:

Keihin Thermal Technology Corporation, Oyama-shi, JP;

Inventors:

Takahisa Saito, Oyama, JP;

Kengo Chiba, Oyama, JP;

Yoshinori Nakata, Oyama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28D 1/02 (2006.01); B23P 15/26 (2006.01); F28F 9/013 (2006.01); B23K 1/00 (2006.01); B23K 1/012 (2006.01); F28F 9/02 (2006.01); F28F 9/18 (2006.01); F28F 21/08 (2006.01); F28D 1/03 (2006.01); F28D 1/053 (2006.01); F28F 1/12 (2006.01); B23K 101/14 (2006.01);
U.S. Cl.
CPC ...
B23P 15/26 (2013.01); B23K 1/0012 (2013.01); B23K 1/012 (2013.01); F28D 1/0391 (2013.01); F28D 1/05391 (2013.01); F28F 1/128 (2013.01); F28F 9/0131 (2013.01); F28F 9/02 (2013.01); F28F 9/18 (2013.01); F28F 21/089 (2013.01); B23K 2201/14 (2013.01); F28F 2275/04 (2013.01);
Abstract

Each heat exchange tube of a condenser is formed of a first brazing sheet having a core material and a first brazing material covering the core material. The tank body of each header tank is formed of a second brazing sheet having a core material and a third brazing material covering the core material and being lower in flowability than the first brazing material. In a region of a surface of each protrusion portion facing the corresponding heat exchange tube, the region having a predetermined width as measured from the projecting end, the core materials of the two brazing sheets are brazed together by means of the first brazing material. In the region other than the brazed portion, the core materials of the two brazing sheets are brazed together by means of a fillet formed of a mixture of the first and third brazing materials.


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