内燃机万能试验凸轮轴的优化实验研究

Optimized Experimental Research on Universal Testing Camshaft for Internal-Combustion Engines

利用自行研制的内燃机性能试验用万能凸轮轴,对CZ175F内燃机机进行了优化实验,筛选出最优工作方案.对不同型线的凸轮性能进行了分析,并且进行了对比试验.结果表明,变型双曲函数配气凸轮丰满系数大,最小曲率半径大,润滑特性好,最大正负加速度均有明显降低,具有良好的高速性与高性能.

The best work program is selected from the results of optimized experiment which is on CZ175F internal-combustion engine by using self-developed universal camshaft for engine performance testing.The property of different profile cam is analyzed,and the contrast test is conducted.The results showed the variant hyperbolic function type valve cam has some advantages,such as the plump coefficient being big,the minimum radius of curvature being large,the lubrication property being good,the maximum positive and negative acceleration being lower significantly,high-speed property and high performance being good.