INTERNAL COMBUSTION ENGINE Russian patent published in 1995 - IPC

FIELD: engine engineering. SUBSTANCE: engine has at least one cylinder 1 with piston 2 kinematically coupled with the crankshaft, head 3 of cylinder 1 provided with inlet and outlet valves 4 and 5, combustion chamber made up as oval recess 6 made in head 5 under one of valves 4 and 5 and conjugated recess 7 made in its bottom 8 when piston 2 is in the top dead center, charge swirlers made up as face projections 9 enclosing recess 6 over a portion of its periphery up to the wall of cylinder 1 abutting against recess 7 when piston 2 is in the top dead center and defining tangential passageways arranged nonuniformly to increase the number of passageways near the axis of cylinder 1, and ignition source received in recess 6 in head 3 opposite to one of the valves and near it. EFFECT: enhanced efficiency. 8 cl, 5 dwg