发明名称 |
Variable valve device for internal combustion engine |
摘要 |
A variable valve device for an internal combustion engine includes a cam phase variable mechanism for varying a phase difference (split) between first and second intake cams. Under predetermined operating conditions of the internal combustion engine, the second intake cam is controlled to take a phase (split) (S1) which is within a predetermined pumping-loss reduction operation phase range and entails a minimum fluctuation (oscillation width) of drive torque on an intake camshaft. |
申请公布号 |
US8635988(B2) |
申请公布日期 |
2014.01.28 |
申请号 |
US20100940236 |
申请日期 |
2010.11.05 |
申请人 |
MURATA SHINICHI;MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA |
发明人 |
MURATA SHINICHI |
分类号 |
F01L1/34;F01L1/04;F01L9/02 |
主分类号 |
F01L1/34 |
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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