发明名称 |
Multi-step valve actuation system |
摘要 |
A multi-step valve actuation system is provided to selectively open a poppet valve of an internal combustion engine having a camshaft rotatably supported by a cylinder block. The multi-step valve actuation system includes a rocker arm operable to selectively open the poppet valve and a pushrod operable to bias the rocker arm. A first follower arm is engageable with a first cam of the camshaft and operates to selectively bias the pushrod. A lash adjuster is disposed between the first follower arm and the pushrod. A second follower arm is engageable with a second cam of the camshaft and selectively latchable with respect to the first follower arm, while a third follower arm is engageable with a third cam of the camshaft and selectively latchable with respect to the first follower arm. An internal combustion engine incorporating the multi-step valve actuation system of the present invention is also disclosed.
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申请公布号 |
US7404386(B1) |
申请公布日期 |
2008.07.29 |
申请号 |
US20070674166 |
申请日期 |
2007.02.13 |
申请人 |
GM GLOBAL TECHNOLOGY OPERATIONS, INC. |
发明人 |
RAGHAVAN MADHUSUDAN;GECIM BURAK A.;MANOLE JOHN IOAN |
分类号 |
F01L1/18 |
主分类号 |
F01L1/18 |
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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