发明名称 |
Intake device for outboard motor |
摘要 |
An engine air intake device for an outboard motor includes a plurality of main intake pipes corresponding to each cylinder. First and second branch pipes extend from an upstream end of each main part. The first branch pipes are longer than the second branch pipes. The second branch pipes each include a valve and are selectively closed. The first branch pipes open into a first surge tank. The second branch pipes open into a second surge tank that is formed separately from the first surge tank. In operation, the valves of the second branch pipes are open when the engine is operating in high engine speed and are closed at low-to-medium speeds.
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申请公布号 |
US7213558(B2) |
申请公布日期 |
2007.05.08 |
申请号 |
US20050281317 |
申请日期 |
2005.11.16 |
申请人 |
YAMAHA MARINE KABUSHIKI KAISHA |
发明人 |
IWATA YOSHIBUMI;TAKAHASHI MASANORI;MIYAZAKI SATOSHI |
分类号 |
F02M35/10 |
主分类号 |
F02M35/10 |
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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