Fuel injection valve

Details Fuel injection valve Fuel injection valve

1994-12-05

1996-09-17

Weldon, Kevin P.

Fluid sprinkling, spraying, and diffusing

Combining of separately supplied fluids

And valving means controlling flow for combining

2395855, F02M 6904

Patent

active

055560342

ABSTRACT:
A fuel injection valve is provided which produces good atomization of fuel and increases the accuracy of the distribution rate of the fuel to a pair of diverging injection holes, even when the amount of assist air is decreased. The fuel injection valve includes a valve housing having a pair of diverging injection holes which diverge from each other in the forward direction with respect to a junction disposed in front of a fuel injection hole. The valve housing is provided with air supply passages for supplying assist air to a fuel flow injected from the fuel injection hole. A pintle inserted through the fuel injection hole has a tip end portion reduced in diameter in the forward direction and is coaxially connected to a valve member. The diameter D of the fuel injection hole, the width W of the junction in a plane intersecting axes of the diverging injection holes and the distance L from the fuel injection hole to the junction are determined to satisfy relations, 0.04<W/D<0.4 and 0.5<L/D<10.

REFERENCES:
patent: 4657189 (1987-04-01), Iwata
patent: 4773374 (1988-09-01), Kiuchi et al.

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