INTERNAL COMBUSTION ENGINE WITH PISTONS MOVING IN OPPOSITE DIRECTIONS Russian patent published in 1997 - IPC

FIELD: mechanical engineering; internal combustion engines. SUBSTANCE: engine has at least one cylinder 1 and pistons 2,3 with hemispherical recesses in heads moving in cylinder in opposite direction. With pistons in inner dead center, recesses form ball combustion chamber 4 which is displaced towards cylinder 1 where nozzle is installed. Circular partition 7 with tangential slots is made around recesses on head of one piston, and cylindrical belt 8 is made around recess in head of other piston to accommodate partition 7 when pistons are in inner dead center. Axis of nozzle is located on plane of head of one of the pistons when it is in inner dead center. Axes of spray orifices of nozzle directed to hemispheres on piston heads. EFFECT: enlarged operating capabilities, increased reliability. 4 cl, 2 dwg