In this paper, kinematics of upper air valve unit is analyzed. The displacement, velocity and acceleration of air valve are calculated by accurate and approximate methods.
对顶置式气门机构进行了运动学分析，通过平底推杆的运动规律求得气门的升程、速度和加速度，分别给出了精确解和近似解。
In this paper, kinematics of upper air valve unit is analyzed. The displacement, velocity and acceleration of air valve are calculated by accurate and approximate methods.
对顶置式气门机构进行了运动学分析，通过平底推杆的运动规律求得气门的升程、速度和加速度，分别给出了精确解和近似解。
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