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. 16, 2003
Filed:
Jan. 14, 2002
Applicant:
Inventor:
Kenta Hatano, Tokyo, JP;
Assignee:
Mitsubishi Denki Kabushiki, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 2/507 ;
U.S. Cl.
CPC ...
F02M 2/507 ;
Abstract
A water-cooled exhaust gas re-circulation device according to the invention has a hole-open/close mechanism allowing communication with outside air is arranged at a cooling water re-circulation passage cooling an exhaust gas re-circulation valve. A drain bolt is used as the hole-open/close mechanism. The hole-open/close mechanism is arranged at a stopper stopping up a hole formed during manufacturing the cooling water re-circulation passage.