INTERNAL COMBUSTION ENGINE Russian patent published in 1994 - IPC

FIELD: engine engineering. SUBSTANCE: engine has case with cylinders 1 and pistons 2 with connecting rods 3. A rocker is mounted on the case and provided with first arm 4 having roller 7 and second arm 5 having additional roller 8. Roller 7 interacts with first cam 10 fitted on output shaft 9, and roller 8 interacts with second cam 11 which is kinematically connected to first cam 10 for combined rotation in the same direction. The cams are provided with surfaces which provide stop of the pistons in top and bottom dead center in the range 20-30of rotation angle of output shaft 9. Axes of rotation of cams 10,11 are located from the one side of the rocker. EFFECT: enhanced efficiency. 3 cl, 2 dwg