INTERNAL COMBUSTION ENGINE GAS SUPPLY SYSTEM Russian patent published in 1999 - IPC

FIELD: mechanical engineering; internal combustion engines. SUBSTANCE: gas supply system has gas cylinder with filling-and-discharge and control-and-safety devices, extension filling-in adapter, electromagnetic valve with gas filter, regulator-evaporator, carburetor-mixer with gas mixing device, gasoline electromagnetic valve coupled with fuel grade selector by electric circuit. With engine idling, vacuum from intake pipe is transmitted into vacuum space of idling valve. Under action of vacuum, diaphragm displaces, compressing the spring, and shifts idling valve which opens channel from space-of first stage into space of second stage of regulator-evaporator. EFFECT: increased economy, reduced exhaust gas toxicity. 3 cl, 10 dwg