Factors affecting the efficiency
Incomplete combustion
Carbon deposition
Thermal shocking
Pollution control
For avoiding these factors we adopt the method of ceramic coating on the engine Features of ceramic coating We conduct various process in this coating
1. Physical vapour deposition
2. Chemical vapour deposition
3. Ion plating
4. Spattering
5. HAIPAP
Advantages
1. This prevents he deposition of carbon over the cylinder head and piston
2. It acts as a thermal barrier which reduces the amount of heat leakage
3. It help complete combustion of fuels
4. It avoids thermal shocking
5. All the factors above contribute increases the efficiency up to 9% and reduction in pollution in a wide rate
Limitations
1. Additional reactions takes place due to coating.
2. High expense for coating