FIELD: mechanical engineering; carburetor engines operating on gaseous fuel and gasoline. SUBSTANCE: gas from gas-liquid bottle is delivered to intake manifold of carburetor engine through evaporator, electromagnetic nozzle and gas air heater installed in vehicle cab. With engine operating on gasoline, additional amount of gaseous fuel is delivered into manifold, being metered out by electromagnetic nozzle, to increase octane rating of gasoline and improve combustion process in cylinders. Shutoff valves are installed on fuel lines. Metering out of gaseous fuel by electromagnetic nozzle and heating of fuel in air heater makes it possible to improve operation of internal combustion engine, reduce toxicity of exhaust gases, cut down gasoline consumption at starting, warming up and operation of engine. EFFECT: enlarged operating capabilities, improved combustion. 1 dwg
