動弁系機構最適化による小型ガソリンエンジンの振動・騒音の低減

概要

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The vibration and noise generated by the motion of the driven valve system are one of the highest levels in mechanical vibration and noise of the engine. As a result of investigations of the mechanism generating the vibration and noise in the valve system, it has been found that abnormal motions of the valve system called jump and bounce phenomena are the primary factor of vibration and noise sources and the collisions between each component of the system become an issue. On the basis of these investigations, the dynamic model of the valve system is maked and Mechanical System Simulation(MSS)is carried out. As the result, it has been found that the factor to reduce these motions is the cam profile and the optimum design of the valve system has been completed. From this study, it has been verified that reduction of the vibration and noise is possible by reduction of the abnormal motions in the valve system.
一般社団法人日本機械学会の論文
2000-02-25