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:
Feb. 06, 2007
Filed:
Jul. 31, 2002
Applicants:
Takazi Igami, Nagoya, JP;
Toshimichi Kobayashi, Hadano, JP;
Jyohei Yamamoto, Hadano, JP;
Hiroshi Saitoh, Nagoya, JP;
Inventors:
Takazi Igami, Nagoya, JP;
Toshimichi Kobayashi, Hadano, JP;
Jyohei Yamamoto, Hadano, JP;
Hiroshi Saitoh, Nagoya, JP;
Assignee:
T. Rad Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 25/07 (2006.01); F02B 47/08 (2006.01); F28F 9/02 (2006.01); F28F 1/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides an EGR cooler that is easy to manufacture and can accelerate heat exchange. Round in section tubes are plastically deformed in one plane crossing centerlines thereof such that corrugated exhaust gas flow paths are formed inside the tubes.