Electromagnetically actuated valve
AssigneeRobert Bosch GmbH
InventorFerdinand Reiter
Life of this patent
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Abstract
An electromagnetically actuated valve is provided having that an axially movable valve needle, which is formed by an armature, a valve closing body and a connection piece connecting the two. The tubular connection piece has two elongated slots, which do not extend over the entire length of the connection piece, but at least over 75% of its length. Thus there are two spring-elastic half-shells in the slotted area. The valve closing body is attached at the unslotted end of the connection piece. The valve is particularly well suited for use in fuel injection systems of compressed-mixture, externally ignited internal combustion engines.
Claims8
A process for manufacturing an electromagnetically actuated valve having a longitudinal valve axis, the process comprising a providing core;
- a magnet coil at least partially surrounding the core;
- an armature;
- a valve seat;
- a valve closing body interacting with the valve seat;
- and a connection piece connecting the armature and the valve closing body, the connection piece including a wall, two slots penetrating the wall, the two slots extending from a first end face of the connection piece and extending across more than 75% but less than 100% of an axial length of the connection piece;
- wherein the connection piece is provided by a step of manufacturing the connection piece from a metal sheet, wherein the connection piece is manufactured from the metal sheet by an initial punching process and a subsequent deep-drawing process.
Dependencies are inferred from the claim text.