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:
Jul. 15, 2014
Filed:
Dec. 24, 2009
Makoto Otsubo, Anjo, JP;
Fumiaki Aoki, Nishio, JP;
Jun Yamada, Okazaki, JP;
Tadashi Komiyama, Chiryu, JP;
Makoto Otsubo, Anjo, JP;
Fumiaki Aoki, Nishio, JP;
Jun Yamada, Okazaki, JP;
Tadashi Komiyama, Chiryu, JP;
Denso Corporation, Kariya, JP;
Nippon Soken, Inc., Nishio, JP;
Abstract
An EGR control device is provided in a branched-off pipe portion of a recirculation pipe unit. The EGR control valve is opened during an exhaust gas recirculation period, which is a part of a valve-opening period of an intake valve, so that exhaust gas is re-circulated into a combustion chamber during the exhaust gas recirculation period. As a result, swirl flow of the re-circulated exhaust gas to be formed in the combustion chamber is increased to improve ignitionability and to facilitate combustion of air-fuel mixture.