| 摘要 |
FIELD: mechanical engineering; internal combustion engines; attachment and locking of injection nozzles for fuel injection in engines with fuel injection into intake manifold by separate nozzle. SUBSTANCE: engine has separate nozzle 1 with ring grooves at both ends for each cylinder. Rubber ring 2 and 3, round in section at free state, are fitted in ring grooves. One end of each nozzle 1 is fitted into hole of boss 4 of fuel line 5 secured on intake pipe 9 of engine. Other end of each nozzle is fitted in hole in intake pipe 9 so that rubber sealing rings 2 and 3 of nozzle are interference-fitted in holes. Novelty in proposed invention is that with engine operating nozzle 1 is locked in longitudinal direction by fuel pressure in pipeline 5 to stop end face of rubber sealing ring 3 of nozzle 1 against special bead 12 in hole for nozzle in intake pipe, and clearance α is provided between end face of nozzle 1 and bottom of hole for nozzle in boss of fuel pipeline 5. EFFECT: simplified design and reduced cost of attachment members, facilitated mounting of nozzles in engine. 1 dwg |
