AUTO PARTS Piston Ring for NISSAN Engine TD42 

Peculiarity of Piston ring 1. Force: The force acting on the piston ring is the gas pressure, the ring's own elastic force, the inertia force of the ring reciprocating motion, the friction between the ring and the cylinder and the ring groove. Due to the action of these forces, the ring will produce axial motion, radial motion, rotary motion and other basic motions. In addition, due to its movement characteristics, accompanied by irregular movement, the piston ring inevitably appears suspension and axial vibration, radial irregular movement and vibration, twisting movement caused by axial irregular movement. These irregular movements often prevent the piston ring from functioning. When designing the piston ring, it is necessary to give full play to the favorable movement and control the unfavorable side. 2. Thermal conductivity: The high heat generated by combustion is transmitted to the cylinder wall through the piston rin…