FIELD: mechanical engineering; internal combustion engines. SUBSTANCE: fuel feed device for two-stroke internal combustion engine has accumulating device with spring-loaded working member installed to form air and fuel chambers. Working member of accumulating device is made in form of diaphragm with plunger and is provided with shaped regulator. Fuel chamber is placed in communication with gas chamber through channel with check valve. Device has channel connecting gas chamber of accumulating device with upper space of engine cylinder and directed towards spark plug, and it also has rod-valve for opening and closing of channel made on engine shaft with control cam or electronic control. Shape of travel regulator is either wedge or cam shaped. EFFECT: enlarged operating capabilities. 3 cl, 1 dwg
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