Mazda Motor Corporation

Yusaku Matsumura

Fusatoshi Tanaka

Ken Yoshida

Takuya Yamada

Yuji Kojima

Yuki Koda

Noriaki Fujita

Takayuki Tominaga

Tomonori Nishida

Takashi Kariya

Hiroyuki Ohmura

Shintaro Umesaki

Naoya Matsumoto

Takuya Nishihara

Arashi Imura

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.

Engine exhaust gas recirculation system

Growing community of inventors

Aki-gun, Japan

Yusaku Matsumura