Two- and four-stroke engines

The two-stroke combustion engine is characterized by a simple construction and system of air load change, as well as a bigger index of power output.

[citation needed] Advantages: The idea was developed at the Silesian University of Technology, Poland, under the leadership of Adam Ciesiołkiewicz.

This model confirms the concept of two- and four-stroke engines' connection.

The new solution for a combustion engine was presented during scientific conferences (KONES '2002, Seminary of biofuels 2003, etc.)

The stages of the working cycle: The filling process takes place at the overpressure phase, using a mechanical gas compressor and a throttle for the purpose of regulation.

This suggests the possibility of different fuels for combustion (low-octane petrol, biofuels with high levels of vegetable components).

When a small car under heavy load runs at half speed, the engine automatically switches to the two-cycle mode, which is then more efficient.

The M4+2 engine working cycle animation