- 专利标题: Exhaust device for internal combustion engine
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申请号: US16085280申请日: 2017-01-13
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公开(公告)号: US11248504B2公开(公告)日: 2022-02-15
- 发明人: Keisuke Kishikawa , Yoji Fukui , Kazuya Yoshio , Takuya Otsuka
- 申请人: HONDA MOTOR CO., LTD.
- 申请人地址: JP Tokyo
- 专利权人: HONDA MOTOR CO., LTD.
- 当前专利权人: HONDA MOTOR CO., LTD.
- 当前专利权人地址: JP Tokyo
- 代理机构: Birch, Stewart, Kolasch & Birch, LLP
- 优先权: JPJP2016-054542 20160317
- 国际申请: PCT/JP2017/001130 WO 20170113
- 国际公布: WO2017/159021 WO 20170921
- 主分类号: F01N1/08
- IPC分类号: F01N1/08 ; F01N1/16 ; F01N13/02 ; F01N1/06 ; F01N1/00 ; F01N1/18 ; F01N13/00 ; F01N13/14 ; F01N1/02 ; F01N3/28 ; F01N13/08 ; B62K11/04
摘要:
An exhaust muffler includes a first muffler section having a tubular member made up of an inner pipe to which an exhaust pipe is connected and an outer pipe covering the inner pipe, and a connector connecting the tubular member and a second muffler section to each other, and the second muffler section having an outer shell, a first partition wall, a second partition wall, and a third partition wall. Exhaust gases delivered from the exhaust pipe are discharged from the first muffler section and the second muffler section out of the exhaust muffler. The second muffler section has a cross-sectional area larger than a cross-sectional area of the tubular member. The exhaust muffler includes a first expansion chamber, a second expansion chamber, and a third expansion chamber. The second muffler section includes a fluid communication pipe extending through the first partition wall and the second partition wall for leading exhaust gases from the first expansion chamber into the second expansion chamber, and an exhaust passage pipe held in fluid communication with the third expansion chamber and extending through the second partition and the third partition wall. The second partition wall has a fluid communication hole defined therein that provides fluid communication between the second expansion chamber and the third expansion chamber. There is thus provided an engine exhaust device capable of increasing a silencing capability by increasing the length of a route through which the exhaust gases flow while maintaining the length of the exhaust device.
公开/授权文献
- US20190085744A1 EXHAUST DEVICE FOR INTERNAL COMBUSTION ENGINE 公开/授权日:2019-03-21
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