Fuel injection valve with fluid honed discharge port and associa

Details Fuel injection valve with fluid honed discharge port and associa Fuel injection valve with fluid honed discharge port and associa

1984-11-20

1987-08-18

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

29818, 29 90R, 51317, 239585, F02M 3900

Patent

active

046871420

ABSTRACT:
A method for producing a smooth finish on the surfaces of a valve seat and a discharge port of a fuel injection valve having a main fuel injection valve body containing an electromagnetic coil, a fixed core, a movable core attracted magnetically towards the fixed core by the coil and a valve rod attached to the movable core and having a valve body for opening and closing a fuel discharge port in a valve seat-forming member attached to the valve body. The fuel discharge port is formed with a smooth surface finish by discharging a honing fluid against the surface. The honing fluid is also discharged against the surface of the valve seat to provide a smooth finish thereon and to provide a rounded corner at the juncture of the seat surface and the fluid discharge port.

REFERENCES:
patent: 2497021 (1950-02-01), Sterns
patent: 2583726 (1952-01-01), Chalom
patent: 2774193 (1956-12-01), Thatcher et al.
patent: 3039234 (1962-06-01), Balman
patent: 3728821 (1973-04-01), Perry
patent: 4274598 (1981-06-01), Wilfert et al.

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