Abstract: The invention relates to internal combustion engines, more exactly reciprocating piston engines and it may be utilized for example both in V-engines and one-row single-cylinder or two-cylinder engines. The internal combustion engine is comprised of block head housing (1), at least one cylinder (2), piston (3), ignition plug (8), combustion chamber (5) sleeves (6) of gas distribution mechanism, intake and exhaust channels (7, 13) whereas the intake channel (7) and the exhaust channel (13) are connected with the corresponding sleeve (6) of the gas distribution mechanism, the gas distribution mechanism sleeves (6) are positioned at an equal angle of the axis of the cylinder and on the same plane the mentioned plane being at a 40-50° angle of the axis of the cylinder (2).