Fuel injection device for internal combustion engines

Details Fuel injection device for internal combustion engines Fuel injection device for internal combustion engines

1996-07-12

1998-03-03

Weldon, Kevin

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

F02M 4702

Patent

active

057226008

ABSTRACT:
This fuel injection device extends the duration which elapses from the injection starting point to the point of maximum lift of the needle valve to lower the initial injection ratio, thereby reducing NO.sub.x emissions. Further, the time which elapses from the starting point of injection termination to the nozzle hole closing point is decreased to ensure positive fuel cutoff, increase the injection rate immediately before the end of the injection process and reduce emissions such as soot and HC. In this fuel injection device, the passage for supplying high-pressure fuel into the balance chamber is formed larger than the orifice for discharging the fuel from the balance chamber, and a normally open check valve is provided in the annular chamber.

REFERENCES:
patent: 3610529 (1971-10-01), Huber
patent: 3910503 (1975-10-01), Barber
patent: 3997117 (1976-12-01), Kohler et al.
patent: 4379524 (1983-04-01), Andrews
patent: 4719889 (1988-01-01), Amann et al.
patent: 5464156 (1995-11-01), Ricco et al.

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