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:
Apr. 27, 1999
Filed:
Jun. 10, 1998
Norimasa Baba, Toyoake, JP;
Denso Corporation, Kariya, JP;
Abstract
A heat exchanger includes first and second header tanks and a plurality of flat tubes disposed therebetween. Each of the first and second header tanks is formed by connecting first and second groove members. The first groove member includes a main wall portion and a side wall portion to have a U-shaped cross-section. A plurality of tube-insertion holes are provided in the first groove member, and the tube-insertion holes extend from the main wall portion until an intermediate position of the side wall portion. The flat tubes are attached to the first and second header tanks by inserting both ends of each flat tube into the tube-insertion holes until the intermediate position. Further, a width of the first groove member in a width direction is set to be equal to each width of the flat tubes. As a result, the sizes of the first and second header tanks are reduced relative to the flat tubes, and the heat exchanger has downsized header tanks.