DEVICE FOR DELIVERY OF GASEOUS FUEL TO INTERNAL COMBUSTION ENGINE Russian patent published in 2005 - IPC

FIELD: manufacture of engines; devices for delivery of gaseous fuel to internal combustion engines.

SUBSTANCE: proposed device has carburetor with air flow rate measuring diffuser, throttle valve, inlet manifold with injector connected with line fitted with throttling nozzle and reducer-evaporator with control chamber and high-pressure and low-pressure chambers. Located above low-pressure chamber of reducer-evaporator is chamber for check of change in pressure in critical section of diffuser which is divided into two cavities by means of membrane: above-membrane cavity and under-membrane cavity. Above-membrane cavity is connected with diffuser critical section by means of line. Under-membrane cavity is connected with under-membrane low-pressure chamber of reducer-evaporator by means of passage through adjustable throttle valve. It is provided with spring-loaded lever-type valve articulated with membrane. Valve is engageable with throttling nozzle connected with injector. Mounted coaxially in cover of above-membrane cavity is adjusting screw engageable with membrane through adjusting spring.

EFFECT: simplified construction; enhanced economical efficiency.

2 cl, 1 dwg