Fuel injection nozzle for internal combustion engines

Details Fuel injection nozzle for internal combustion engines Fuel injection nozzle for internal combustion engines

1994-09-21

1996-05-21

Weldon, Kevin P.

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

F02M 6116, F02M 5106

Patent

active

055181848

ABSTRACT:
A fuel injection nozzle having an outwardly opening valve member, which is acted on in an opening direction by fuel pressure and in a closing direction by a closing spring. In order to control the opening characteristic curve of a stroke-dependently cleared injection cross section, an electrical actuator in the form of a piezo-electric stack or a magnetostrictive final control member is disposed in the nozzle holder, which actuator carries a collar on the valve member. The reciprocating motion of the valve member is limited in controlled fashion by shortening the length of the actuator.

REFERENCES:
patent: 4187987 (1980-02-01), Raue
patent: 4619400 (1986-10-01), van der Burgt
patent: 4909444 (1990-03-01), Sczomak
patent: 5048489 (1991-09-01), Fischer et al.

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