在气门下降段，将气门的落座速度和下降段缓冲包角取小些，使得气门落座平稳，无激烈的冲击现象。
During the drop, better have a lower speed of resitting and a smaller wrap Angle, which can have a smooth resitting without fierce impact.
对气门的落座速度及反跳高度进行了验证，得出最优方案的速度及反跳高度均在许用范围内。
Verified the seated speed and rebound height, we obtained the seated speed and rebound height of optimal solution were within the allowable range.
无凸轮轴气门驱动的主要问题是响应速度不够高、气门落座冲击、能耗过高以及驱动系统复杂昂贵。
The main problems of the camshaftless valve actuation are long response time, hard valve landing, high power consumption and complex…
无凸轮轴气门驱动的主要问题是响应速度不够高、气门落座冲击、能耗过高以及驱动系统复杂昂贵。
The main problems of the camshaftless valve actuation are long response time, hard valve landing, high power consumption and complex…
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