Solenoid type fuel injection valve

Details Solenoid type fuel injection valve Solenoid type fuel injection valve

1994-11-30

1996-07-30

Weldon, Kevin P.

Fluid sprinkling, spraying, and diffusing

Combining of separately supplied fluids

And valving means controlling flow for combining

239429, 2395854, F02M 5100

Patent

active

055403883

ABSTRACT:
In a solenoid type fuel injection valve, outer and inner fuel spray guide devices are coaxially disposed downstream of a fuel injection hole, and a pintle is provided at a tip end of a needle valve and projects to extend through the fuel injection hole and opposed to an upper surface of the inner fuel spray guide device. Thus, fuel passing through the fuel injection hole to collide against a valve head of the pintle is sprayed into an intake port, while being atomized and spread into a cone-like shape. At this time, the fuel is blocked by a support arm which extends radially inwardly from a cap to support the inner fuel spray guide device, thereby causing a fuel spray pattern to be formed into a horse's hoof-like shape having fuel non-spray portions. By forming the fuel non-spray portions in correspondence to a rod portion of an intake valve and/or the like, the deposition of the fuel is prevented.

REFERENCES:
patent: Re33841 (1992-03-01), Rush et al.
patent: 3929291 (1975-12-01), Ladich
patent: 4666088 (1987-05-01), Krauss et al.
patent: 4771948 (1988-09-01), Fukukawa et al.
patent: 5197674 (1993-03-01), Ketterer et al.

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