FIELD: mechanical engineering; internal combustion engines. Invention can be used both in piston and combination internal combustion engines. SUBSTANCE: invention can be used both in piston and combination internal combustion engines with divided combustion chamber. Proposed precombustion chamber engine with injection of fuel directly into precombustion chamber contains combustion chamber part of which is arranged in cylinder head and movable separating partition installed in combustion chamber and dividing combustion chamber into precombustion chamber and main chamber. Drive lever of movable partition is coupled with control pedal. With movable partition being turned or displaced, volume of precombustion chamber is changed at the account of volume main chamber, with total volume of combustion chamber remaining unchanged. Movable separating partition is secured on turnable shaft or on movable rod. Air deflector is installed on inner side of cylinder head adjoining intake valve. Vent recess is made in wall of combustion chamber adjoining intake valve. Movable separating partition is provided with through holes. Edges of movable separating partition are straight or serrated. EFFECT: provision of optimum fuel-air mixture in precombustion chamber at all fuel deliveries. 8 cl, 3 dwg
