Reason Study of Collision Between Valves and Piston of Diesel Engine Valve Train

摘要

Thermal-mechanical coupled finite element simulation of valve train for 265 diesel engine is carried out by using CREO and ANSYS softwares. The temperature field, thermal stress, thermal strain and thermal deformation re obtained for the system. Meanwhile, the cause of the collision between the valves and the piston is also got. The results of this paper will provide a certain theoretical basis for the further optimization design of valve system of the diesel engine.