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.:
Date of Patent:
Jan. 06, 2015
Filed:
Jul. 10, 2008
Toshihide Ninagawa, Chita, JP;
Tatsuo Ozaki, Okazaki, JP;
Takahide Oohara, Okazaki, JP;
Noriyuki Miyazaki, Nagoya, JP;
Mitsuyoshi Saito, Hamamatsu, JP;
U Ou, Anjo, JP;
Norio Yoshida, Kariya, JP;
Tetsuya Sakakibara, Toyohashi, JP;
Kazuhiro Mitsukawa, Ichinomiya, JP;
Toshihide Ninagawa, Chita, JP;
Tatsuo Ozaki, Okazaki, JP;
Takahide Oohara, Okazaki, JP;
Noriyuki Miyazaki, Nagoya, JP;
Mitsuyoshi Saito, Hamamatsu, JP;
U Ou, Anjo, JP;
Norio Yoshida, Kariya, JP;
Tetsuya Sakakibara, Toyohashi, JP;
Kazuhiro Mitsukawa, Ichinomiya, JP;
Denso Corporation, Kariya, JP;
Abstract
A heat exchanger has a flat tube () having a curved portion (). A part of the curved portion () is formed by overlapping an outer rim () on an inner rim (). The inner rim () has a small curvature region (). The small curvature region () is inclined to a flat plate portion (), and is defined by a radius larger than a difference between a half of a thickness of the flat tube () and a thickness of the outer rim (). The small curvature region () is not beyond a center line (C) in a thickness of the flat tube (). The outer rim () extends beyond the center line (C). The outer rim () has an end face () placed on the small curvature region (). The flat tube () has flared portions () expanded at insertion holes ().