Cylinder injection type fuel injection valve

Details Cylinder injection type fuel injection valve Cylinder injection type fuel injection valve

1997-06-06

1999-09-21

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

239473, 2395854, 2395855, F02M 6100

Patent

active

059542748

ABSTRACT:
A cylinder injection type fuel injection valve comprising: a valve body of a cylindrical type; a valve seat having at the center thereof an injection nozzle for injecting fuel; a valve capable of contacting to and separating from the valve seat to open and closing the injection nozzle; a swirler having a substantially cylindrical shape which causes a swirl motion in the fuel flowing into the injection nozzle of the valve seat, and which is located around the valve to support the valve so that the valve is slidably moved therein; a hollow housing having one end connected to the valve body and the other end connectable to a fuel supply tube; and a solenoid located in the inside of the housing to operate the valve to be opened and closed, wherein a clearance between the inner diameter of the swirler and the outer diameter of the valve is set to be a half or less of a lifting distance of the valve, whereby a deviation between the valve seat and the valve at a time of a valve-opening state is controlled to be a half or less of the lifting distance at most so that nonuniformity of atomization is suppressed.

REFERENCES:
patent: 4946132 (1990-08-01), Reiter
patent: 4971254 (1990-11-01), Daly et al.
patent: 5108037 (1992-04-01), Okamoto et al.
patent: 5207384 (1993-05-01), Horsting
patent: 5341994 (1994-08-01), Wakeman
patent: 5678767 (1997-10-01), Rahbar

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