The proposed internal combustion engine may be characterized by two mobile opposite cylinders rigidly attached to each other. Said cylinders move simultaneously in the same direction. The motions of said cylinders are transferred via a connecting rod and hinges to the rotational movements of the crankshaft. Inside the opposite cylinders are two mobile opposite pistons rigidly attached to each other and rigidly secured to the housing of the engine. There are two working cavities of variable volume between the corresponding opposite pistons and the opposite cylinders. The intake and exhaust valves with intake and exhaust manifolds, injectors with fuel pipes, spark plugs with high voltage wires, are placed on the said pistons. The compressor is rigidly connected to the engine housing and supplies air under high pressure to the working cavities of the engine through the air intake manifold. During the operation of the engine, the intake and exhaust valves participate in providing the compression stroke and power stroke, when both valves are closed. When both valves are open (during the intake and exhaust strokes) the blowing of air under high pressure from the compressor takes place, in order to cool the working cavity of the engine. During the period of time between the closing of the exhaust valve at the end of the intake stroke and the closing of the intake valve at the beginning of the compression stroke, compressor supercharging of the working cavity of the engine takes place.