FIELD: engines and pumps.
SUBSTANCE: invention relates to automotive industry, particularly to maintaining combustion of fuel-air mix in ICE cylinder with external mix preparation and forced ignition. In compliance with this invention, engine cylinder head has air chamber communicated with cylinder chamber whereto a portion of fuel-air mix is drawn off when forced into cylinder. Mix ignited in cylinder in expansion stroke, fuel-air mix drawn off is forced back into engine cylinder by piston fitted in aforesaid air chamber. Said air chamber is separated from combustion chamber by a screen to prevent ignition of fuel-air mix in air chamber.
EFFECT: higher engine efficiency and torque, reduced on main and crankpin bearings.
4 cl, 1 dwg
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