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根据实测示功图提出了利用气门落座冲击引起的干扰信号间接地确定气门关闭相位，并根据配气凸轮型线的对称性，确定内燃机动态配气相位的办法．研究了实际运转内燃机配气相位随负荷、转速的变化关系及原因．
According to the measured dynamometer, the valve closing phase is determined indirectly by using the interference signal caused by the valve seating impact. According to the symmetry of the cam profile of the gas distribution, the method of determining the phase of the dynamic distribution of the internal combustion engine is established. The relationship between the gas phase of the internal combustion engine and the load and rotation speed and the reasons were studied.