FOUR-STROKE INTERNAL COMBUSTION ENGINE Russian patent published in 1995 - IPC

FIELD: engine engineering. SUBSTANCE: four-stroke internal combustion engine has housing 1 with inner curved surface 11 and outlet shaft 2 having cantilevers 12 and 13 and cylinders 3 and 4. Single-arm lever 14 is pivotally mounted on cantilever 12. Double-arm 15 is mounted on cantilever 13. Pistons 5 and 6 interact with curved surface 11 by way of rollers 9 and 10. Rod 8 of first piston 6 is rigidly connected with the second arm of the double-arm lever 14. The first arm of double-arm lever 15 is constructed as a gear sector which engages the member of the gear transmission. The gear sector is made up as gears 17 and 18 and a gear rack mounted on rod 7 of the second piston. EFFECT: enhanced efficiency. 3 cl, 2 dwg