DEVICE TO SUPPLY GASEOUS FUEL INTO INTERNAL COMBUSTION ENGINE Russian patent published in 2001 - IPC

FIELD: mechanical engineering; internal combustion engine. SUBSTANCE: proposed device has constant pressure regulator 13 with controlled throttle 15 in which chamber is divided by diaphragm 23 with valve into two spaces. Above-diaphragm space K communicates with atmosphere, and under- diaphragm space (Л), provided with spring-loaded valve, is connected through jet 11 with above-diaphragm space C, through controlled throttle 12 is connected with under-diaphragm space D and through controlled throttle 13 by main line 16 with mixer 17 in intake manifold 18. Above-diaphragm space C through fixed partition forms additional chamber divided by control diaphragm 2 in to two spaces, above- diaphragm space A communicating with atmosphere and under-diaphragm space B connected by main line 7 with diffuser 8 of air flow rate meter. Control diaphragm 2 engages through movable rod 10 and through fixed partition with low-pressure diaphragm 3 whose above-diaphragm space C is connected additionally through jet 6 with under0diaphragm space B of control diaphragm. EFFECT: increased engine power-to-volume ratio, improved performance characteristics and safety owing to provision of sealing at idling. 1 dwg