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:
Sep. 28, 2010
Filed:
Dec. 05, 2006
Hiroshi Nishikawa, Kariya, JP;
Kenta Gotyo, Kariya, JP;
Takashi Hattori, Kariya, JP;
Masaki Kumagai, Tokyo, JP;
Yasunaga Itoh, Tokyo, JP;
Hiroshi Nishikawa, Kariya, JP;
Kenta Gotyo, Kariya, JP;
Takashi Hattori, Kariya, JP;
Masaki Kumagai, Tokyo, JP;
Yasunaga Itoh, Tokyo, JP;
Denso Corporation, Aichi, JP;
Sumitomo Light Metal Industries, Ltd., Tokyo, JP;
Abstract
The present invention provides a method of manufacturing a heat exchanger tube in which a tube for a heat exchanger formed by brazing is manufactured using a sheet material, wherein a filler metal melted during brazing can be prevented from entering an opening formed in an opposing portion or a parallel portion formed when bending a sheet material into a tube shape or an opening facing toward the outside of the tube. The opposing portion, the parallel portion, or the opening facing toward the outside of the tube is sealed. As the sealing means, friction welding is preferable.