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:
Nov. 15, 2022
Filed:
Oct. 20, 2021
Mazda Motor Corporation, Hiroshima, JP;
Tomonori Nishida, Aki-gun, JP;
Yuji Kojima, Aki-gun, JP;
Noriaki Fujita, Aki-gun, JP;
Ken Yoshida, Aki-gun, JP;
Takashi Kariya, Aki-gun, JP;
Takayuki Tominaga, Aki-gun, JP;
Naoya Matsumoto, Aki-gun, JP;
Yusaku Matsumura, Aki-gun, JP;
Yuki Koda, Aki-gun, JP;
Takuya Nishihara, Aki-gun, JP;
Hiroyuki Ohmura, Aki-gun, JP;
Arashi Imura, Aki-gun, JP;
Fusatoshi Tanaka, Aki-gun, JP;
Takuya Yamada, Aki-gun, JP;
Shintaro Umesaki, Aki-gun, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
An exhaust gas recirculation system for a multi-cylinder engine is provided, which includes an exhaust manifold connected to a cylinder head, a catalyst connected to a downstream end of the exhaust manifold in terms of an exhaust gas flow, an EGR gas outlet provided downstream of the catalyst, an in-head EGR passage penetrating the cylinder head, and an EGR pipe extending from the EGR gas outlet and directly connected to an inlet of the in-head EGR passage to lead EGR gas thereto. The catalyst is disposed so that the exhaust gas flows therein from a first side to a second side in an engine cylinder lined-up direction. The EGR gas outlet is located on the second side with respect to the center of the engine in the cylinder lined-up direction, and the inlet of the in-head EGR passage is located in the first side with respect to the engine center.