发明名称 |
Exhaust system for watercraft |
摘要 |
An internal combustion engine includes an exhaust system. Additionally, the engine includes a secondary air injection system that injects air into the exhaust system to burn un-burnt fuel that may be entrained in the exhaust gases. The secondary air injection system can include individual secondary injection conduits, each having a check valve, and being configured to inject air into each exhaust runner of the engine. The secondary air injection system can also include, in lieu or in addition, a cooling jacket cooling a portion of the exhaust system between upstream from a catalyst device and downstream from the point of injection of secondary air. |
申请公布号 |
US6612885(B2) |
申请公布日期 |
2003.09.02 |
申请号 |
US20010996520 |
申请日期 |
2001.11.28 |
申请人 |
YAMAHA MARINE KABUSHIKI KAISHA |
发明人 |
YAMAZAKI SUSUMU;MINCO SHIGEHARU |
分类号 |
B01D53/86;B63H21/32;F01N3/00;F01N3/02;F01N3/04;F01N3/20;F01N3/22;F01N3/28;F01N3/30;F01N3/32;F01N3/34;F01N13/08;(IPC1-7):B63H21/32 |
主分类号 |
B01D53/86 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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