The functioning of the internal combustion engine four-quarters. Engine methods of work consists of four games 1 - a first half (way of withdrawal) and be in the development of horticulture down to the bottom. 2 - the second half, which (way down) and the development of horticulture in the ascent. 3 - half with a third (half power) and horticulture have put down to the bottom. 4 - the fourth quarter is (way of expulsion) and the development of horticulture in the ascent.

1 - way clouds; horticulture withdraw the mixture consisting of air and gasoline. 2 - way to pressure; horticulture is under pressure to top the mixture to the fullest degree. D 3 - way energy; based candle sparks to burn the mixture results in a mixture and the explosion of horticulture pay down strongly. 4 - way to expulsion; horticulture expel the combustion products outside of the cylinder. And repeated this process a certain order of the cylinders, depending on the engine and form Adeddalasitwanat also be the modus operandi of the Quartet-stroke engine