公开(公告)号：US20220128019A1

公开(公告)日：2022-04-28

申请号：US17451600

申请日：2021-10-20

申请人： Mazda Motor Corporation

发明人： Tomonori Nishida ,  Yuji Kojima ,  Noriaki Fujita ,  Ken Yoshida ,  Takashi Kariya ,  Takayuki Tominaga ,  Naoya Matsumoto ,  Yusaku Matsumura ,  Yuki Koda ,  Takuya Nishihara ,  Hiroyuki Ohmura ,  Arashi Imura ,  Fusatoshi Tanaka ,  Takuya Yamada ,  Shintaro Umesaki

IPC分类号： F02M26/14 ,  F01N13/10 ,  F01N13/18 ,  F02M26/01 ,  F01N13/14 ,  F02M26/22 ,  F02B75/02 ,  F02B75/20

摘要： 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.

公开(公告)号：US11499509B2

公开(公告)日：2022-11-15

申请号：US17451600

申请日：2021-10-20

申请人： Mazda Motor Corporation

发明人： Tomonori Nishida ,  Yuji Kojima ,  Noriaki Fujita ,  Ken Yoshida ,  Takashi Kariya ,  Takayuki Tominaga ,  Naoya Matsumoto ,  Yusaku Matsumura ,  Yuki Koda ,  Takuya Nishihara ,  Hiroyuki Ohmura ,  Arashi Imura ,  Fusatoshi Tanaka ,  Takuya Yamada ,  Shintaro Umesaki

IPC分类号： F02M26/14 ,  F02M26/01 ,  F02M26/22 ,  F01N13/10 ,  F01N13/14 ,  F01N13/18 ,  F02B75/02 ,  F02B75/20 ,  F02M26/15 ,  F02M26/41 ,  F02M26/23 ,  F02M26/18 ,  F02B75/18

摘要： 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.

公开(公告)号：US10337475B2

公开(公告)日：2019-07-02

申请号：US15512818

申请日：2016-10-14

申请人： MAZDA MOTOR CORPORATION

发明人： Atsushi Nose ,  Noriaki Fujita

IPC分类号： F02B29/04 ,  F02M35/10 ,  F02M35/12 ,  F02B37/013

摘要： An air intake device includes a bypass passage which makes a portion of an air intake passage on an upstream side of a compressor and a portion of the air intake passage on a downstream side of the compressor communicate with each other, and a bypass passage open/close valve which opens or closes the bypass passage. The air intake passage includes a first passage extending toward an upstream side from the compressor along a first direction, a bent portion bent from an upstream end of the first passage in a second direction, and a second passage extending from an upstream end of the bent portion along the second direction. The second passage has a vertically elongated cross-sectional shape. A vibration suppressing part for suppressing vibrations of the second passage is disposed in at least one of the second passage and the bent portion.