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:
Dec. 04, 2007
Filed:
Aug. 25, 2004
Akio Iwasa, Konan, JP;
Muneo Sakurada, Konan, JP;
Yoshihisa Eto, Konan, JP;
Valeo Thermal Systems Japan Corporation, Saitama, JP;
Abstract
A heat exchanger adopts a four-pass structure, including two rows of tubes, a first upper tank portion communicating with the upper end of one of the tube rows, a second upper tank portion communicating with the upper end of the other tube row, a first lower tank portion communicating with the lower end of the one tube row, a second lower tank portion communicating with the lower end of the other tube row, a communicating passage that communicates between first ends of the first and second upper tank portions a partition partitioning each of the first and second upper tank portions, inflow and outflow ports communicating with the other ends of the first and second upper tank portions. The inflow port opening is smaller and has a higher center than the outflow port opening.