METHOD OF OPERATION OF MULTI-FUEL INTERNAL COMBUSTION ENGINE END MULTI-FUEL INTERNAL COMBUSTION ENGINE Russian patent published in 1995 - IPC

FIELD: engine engineering. SUBSTANCE: engine has cylinder 1, piston 2 mounted inside the cylinder for permitting reciprocation, head 3 of cylinder 1, delivery chamber 4 of variable volume defined by bottom 5 of piston 2 and head 3, combustion chamber 6 of constant volume having neck 7 provided in head 3 and fuel nozzle 8, and controlled valve, e.g., gate 9 positioned in bottom 5 of piston 2 coaxially to neck 7. The gate separates chambers 4,5 when piston 2 moves to the top dead center during the compression stroke and connects the chambers when piston 2 is in the vicinity of the top dead center. At the beginning of the compression stroke, a portion of air flows from delivery chamber 7 to the combustion chamber 6 through neck 7. Fuel is injected during flowing the portion of air to combustion chamber 6 with simultaneous mixing. EFFECT: enhanced efficiency. 4 cl, 3 dwg