发明名称 |
Variable valve type internal combustion engine and control method thereof |
摘要 |
The operation modes of plural intake valves 7 a and 7 b provided in one cylinder is independently changed according to the drive region of the internal combustion engine. In the low air amount region, the intake airflow is controlled only with intake valve 7 a which operates in the low air amount region and the other intake valve 7 b is operated in the medium and high air amount regions.
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申请公布号 |
US7240664(B2) |
申请公布日期 |
2007.07.10 |
申请号 |
US20040828225 |
申请日期 |
2004.04.21 |
申请人 |
HITACHI, LTD. |
发明人 |
YOSHIDA TAKASHI;SUKEGAWA YOSHIHIRO |
分类号 |
F01L1/00;F02M51/00;F01L1/26;F01L1/34;F01L3/06;F01L13/00;F02B31/00;F02D13/02;F02D41/00 |
主分类号 |
F01L1/00 |
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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