机械式CVVL气门驱动机构的开发  

Development of a Mechanical Continuously Variable Valve Lift Mechanism

作　　者：张华[1] 章健勇[1] 武涛[1] 李冲霄[1] 尹琪[1] 

机构地区：[1]上海汽车集团股份有限公司技术中心,上海201804

出　　处：《上海汽车》2011年第4期16-20,共5页Shanghai Auto

摘　　要：基于某型汽油机开发了一种机械式连续可变气门升程（CVVL）机构。实验结果表明,该机构可实现气门升程在0.35~8.93 mm之间连续调节,对应气门开启持续期104~250°CA,且机构运动稳定性好,没有气门升程曲线失真现象,机械损失优于原机气门驱动系统。A type of mechanical continuously variable valve lift（CVVL） mechanism is developed based on a particular gasoline engine.The test results indicate that valve lift varies among 0.35 to 8.93 mm while duration correspondingly among 104 to 250°CA.The CVVL mechanism runs stably without lift curve distorted,and the driving torque is less than the particular engine＇s,which shows a better mechanical efficiency.

关 键 词：发动机 配气机构 气门升程 

分 类 号：U464.134.3[机械工程—车辆工程]