The biggest part of the car piston wear piston ring groove wear. The main reason is that the gas pressure causes the piston ring to increase the unit pressure of the annular groove and at the same time, the piston ring makes a great impact on the annular groove due to the high speed reciprocating motion of the piston. In addition, the high temperature of the combustion gas causes the piston head The working temperature is high, and the closer to the top of the piston the higher the temperature and gas pressure. Therefore, the first ring groove wear the most serious, the following ring groove wear gradually reduced. Ring groove wear is mainly under the plane, while less wear on the plane, so that the ring groove wear large trapezoidal inside and outside, the piston ring backlash increases, causing the cylinder gas channeling and channeling oil.

The biggest part of the car piston wear piston ring groove wear. The main reason is that gas pressure causes the piston ring to increase the unit pressure of the annular groove and at the same time, the piston ring makes a great impact on the annular Groove due to the high temperature of the combustion gas causes the high temperature of the combustion gas causes the high temperature of the combustion gas causes the high temperature of the combustion gas causes the high temperature of the combustion gas causes the , the first ring groove wear the most serious, the following ring groove wear wear gradually reduced. Ring groove wear is mainly under the plane, while less wear on the plane, so that the ring groove wear large trapezoidal inside and outside, the piston ring backlash increases, causing the cylinder gas channeling and channeling oil.