The experimental results on S195 diesel engine have showed that the engine with new structure of main combustion chamber has better performance obviously in full load and overload.

In staged combustion, that still-usable exhaust is instead fed into the main combustion chamber, driving up pressure and burning a second time to maximize impulse from the available tankage.

The combustion chamber consists of the main combustion chamber on the top of the piston, the auxiliary combustion chamber in the cylinder head and the passage between the main and auxiliary Chambers.