Adjusting bush for an electromagnetically actuatable valve

Details Adjusting bush for an electromagnetically actuatable valve Adjusting bush for an electromagnetically actuatable valve

1992-02-12

1992-11-24

Rosenthal, Arnold

Valves and valve actuation

Electrically actuated valve

Including solenoid

2395854, F16K 3106, F02M 5106

Patent

active

051656566

ABSTRACT:
An electromagnetically actuatable valves, including an adjusting bush pressed into a flow bore of a core of a coil in order to adjust a spring force of a restoring spring. The novel adjusting bush includes at least two longitudinal beads, extending in the direction of the longitudinal valve axis on its circumference that protrude past a jacket of the adjusting bush in the radial direction. The transitional region between the jacket and each of the longitudinal beads is embodied as rounded, at least in the direction of the longitudinal valve axis. Thus when the adjusting bush is pressed into the flow bore of the core, the production of chips at the adjusting bush and flow bore is prevented. The adjusting bush is especially well-suited for injection valves of fuel injection systems in internal combustion engines.

REFERENCES:
patent: 4575009 (1986-03-01), Giraudi
patent: 4625919 (1986-12-01), Soma et al.
patent: 4700891 (1987-10-01), Hans et al.
patent: 4984744 (1991-01-01), Babitzka et al.

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