FIELD: engine building.
SUBSTANCE: two-stroke star-shaped multi-cylinder internal combustion engine consists of a crankcase 6, a crankshaft 7 with main 2 and trailing 5 connecting rods, cylinders 1 and pistons 4. The under-piston cavities of each cylinder 1 are separated from the cavity of the common crankcase by sliding valves 3 driven by connecting rods 2, 5, having a variable reduced cross section corresponding to the position of the connecting rods 2, 5 in the area of connection with the drive holes in said sliding valves 3. The engine is made with the possibility of suction from the common crankcase through the window of the fuel-air mixture or air opened by the sliding valve 3 into the under-piston cavity, forcing the fuel-air mixture in the under-piston cavity, and also purging the working cavity of the cylinder with the fuel-air mixture or air from the under-piston cavity through the purge channels when the piston 4 opens purge windows.
EFFECT: increase of the engine power.
1 cl, 5 dwg
