Modified armature for low noise injector

Details Modified armature for low noise injector Modified armature for low noise injector

1992-09-22

1994-07-12

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Including valve means in flow line

Reciprocating

25112921, F16K 3106

Patent

active

053281004

ABSTRACT:
Audible noise emission from a solenoid-operated fuel injector is reduced by providing a groove around the armature spaced from the end of the armature that impacts the end to the pole piece/fuel inlet tube so as to leave a radial flange at the end of the armature. In one form of the invention, the groove extends around the outside diameter of the armature. In another form, the groove extends around the inside diameter of the armature. The groove is located and sized to optimize energy absorption during impact of the armature against the pole fuel inlet tube piece.

REFERENCES:
patent: 1226748 (1917-05-01), Burnham
patent: 4317542 (1982-03-01), Morishita et al.
patent: 4531708 (1985-07-01), Livet
patent: 4610080 (1986-09-01), Hensley
patent: 4766405 (1988-08-01), Daly et al.
patent: 4907745 (1990-03-01), Messingschlager
patent: 5005803 (1991-04-01), Fritz et al.
patent: 5207387 (1993-05-01), Bergstrom

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