Method for a combustion machine with two times three strokes

A method for operating a combustion machine, where a working cycle comprises three revolutions of a crankshaft (60) of the combustion machine, and a piston (20) of the combustion machine reaches a first top dead center (OT′) twice and a second top dead center (OT″) once and reaches a first bottom dead center (UT′) twice and a second bottom dead center (UT″) once during a working cycle, the first top dead center (OT′) and the first bottom dead center (UT′) are farther from the crankshaft (60) than the second top dead center (OT″) and the second bottom dead center (UT″), respectively, the method comprising:

• feeding a fuel mixture into a combustion chamber (14) of the cylinder (10) during a movement of the piston (20) from the second top dead center (OT″) to the first bottom dead center (UT′);
• compressing the air-fuel mixture in the combustion chamber (14) of the cylinder (10) during a movement of the piston (20) from the first bottom dead center (UT′) to the first top dead center (OT′);
• burning the air-fuel mixture during a movement of the piston (20) from the first top dead center (OT′) to the second bottom dead center (UT″);
• compressing a gas mixture located in the combustion chamber (14) during a movement of the piston (20) from the second bottom dead center (UT″) to the first top dead center (OT′);
• burning the gas mixture during a movement of the piston (20) from the first top dead center (OT′) to the first bottom dead center (UT′);
• expelling the gas mixture located in the combustion chamber (14) during a movement of the piston (20) from the first bottom dead center (UT′) to the second top dead center (OT″);
• and
• scavenging at least some of the gas mixture from the combustion chamber (14) as the piston (20) passes through the second bottom dead center (UT″).