THEORETICAL INVESTIGATIONS ABOUT THE INFLUENCES OF THE PISTON PIN STRESS ON THE COMBUSTION ENGINE PERFORMANCES

Abstract

The engine piston pin stress is done by the action of exhaust gases pressure forces, forces of mass inertia, constructive shapes, material and thermal treatment. The performances of the combustion engine are in direct relationship with those of the piston pin. The theoretical investigations in this paper are focused on the variant of semifloating piston pin(fixed into the connecting rod foot).The theoretical aspects which were analyzed are linked to the mass decreasing influence, to the optimized distribution of material and to the optimization of constructive shape. The aim of the researcher is to realize a better behavior in case of real loadings and, finally, to improve the performances of the combustion engine.