| 摘要 |
FIELD: mechanical engineering; internal combustion engines; fuel system devices. SUBSTANCE: proposed fuel injection device has piston 8 of pump executing reciprocating movements under action of drive, and working chamber 13 closed by piston and connected directly with valve nozzle adjoining the pump body. To control amount of injected fuel and beginning of injection, electromagnetic valve 31 is used which is arranged in fuel channel communicating with pump working chamber. This channel serves to fill and/or unload pump working chamber. To decrease spaces exposed to high pressure, fuel channel is arranged so that it intersects cylindrical hole in which pump working chamber is placed, and electromagnetic valve is located at channel inlet. EFFECT: enlarged operating capabilities and reliability. 1 dwg |
