CARBURETOR FOR INTERNAL COMBUSTION ENGINE Russian patent published in 1998 - IPC

FIELD: mechanical engineering; internal combustion engines; fuel system devices. SUBSTANCE: CARBURETOR has channel 1 with throttle valve 2. Idling system has fuel disperser 5, emulsion channel 6 connected through controlled jet 7 to input of fuel disperser 5, evaporator 8 and heat exchanger chamber 9. Input of evaporator 8 is connected to fuel disperser 5, output is connected with behind-the-throttle space 3 of channel 1, and heat carrier supply channel 12 is coupled with exchanger chamber 9. Fuel mixture quantity control 13 is installed at output of evaporator 8. At idling channel 1 is overlapped by throttle valve 2. Vacuum from behind-the-throttle space 3 is passed into evaporator 8. Fuel from emulsion channel 6 passes into fuel disperser 5 and further on into evaporator 8, and simultaneously heat carrier (heated air) is delivered into evaporator 8 from exchange chamber 9. When atomized fuel is mixed with heat carrier, fuel evaporates and is delivered together with used heat carrier along branch pipe 11 into behind-the throttle space 3 of channel 1. EFFECT: reduced toxicity of exhaust gases and cut down fuel consumption owing to preliminary evaporation of fuel. 2 cl, 1 dwg