What Is The Cause Of The Damage Of The Micro Exhaust Valve?

Many people have encountered damage to the micro-exhaust valve when applying the micro-exhaust valve. So what causes this situation?

1. Poor combustion will not only increase the exhaust temperature, but also form carbon deposits in the combustion chamber. As the exhaust temperature increases, the working environment of the exhaust valve becomes worse. As other conditions increase, the combustion loss of the exhaust valve increases.

2. Some carbon deposits in the combustion chamber will be discharged with the exhaust gas and stick to the sealing surface of the exhaust valve and valve seat like the above-mentioned particles. In particular, the heating temperature of heavy oil is not well controlled, the viscosity is too high, the fuel injected into the cylinder is difficult to atomize, the piston of the high-pressure oil pump is worn, and the combustion is reversed, which will cause carbon pollution in the sealing area of the exhaust valve and valve seat. In addition, after various complicated heat treatments in the combustion chamber, the impurities in the fuel are deposited in a layer of glass-like hard and brittle material on the sealing cone of the exhaust valve flap and the valve seat, and are combined with sodium sulfate, calcium sulfate, iron oxide, etc. A mixture of carbon particles.

3. When the deposition thickness of this layer of glassy deposit is too large, when the valve is closed, cracks will appear under the action of impact force. After repeated impacts, it will develop into a sheet shape, thereby forming a high-temperature gas jet channel combustion valve.