METHOD OF OPERATING INTERNAL COMBUSTION ENGINE Russian patent published in 1994 - IPC

FIELD: engine engineering. SUBSTANCE: method includes filling cylinder with fresh charge, compressing it, separating the charge into two volume at the top dead center: the first in prechamber and the second in accumulating space, injecting fuel in the first volume of fresh charge, igniting fuel and then its burning out at involving the second volume of fresh charge in combustion zone from the accumulating space. Poor fuel-air mixture is used as a fresh charge. The second volume of fresh charge is involved to combustion zone by making up with flow of poor fuel-air mixture that encloses the combustion zone. EFFECT: enhanced efficiency. 3 dwg