Valve for dosing fluid

Abstract

The invention relates to a valve (1) for dosing fluid, in particular a fuel injection valve for an internal combustion engine, comprising an actuator (2) and a valve needle (15) which can be actuatedby the actuator (2) along a longitudinal axis (8), an armature (4) of the actuator (2) being arranged on the valve needle (15), wherein the armature (4) is displaceable relative to the valve needle (15) in accordance with an armature free path (20) along the longitudinal axis (8), and wherein at least one stop element (16) arranged on the valve needle (15) is provided, said stop element (16) limiting the displacement of the armature (4) relative to the valve needle (15). According to the invention, a wear-resistant edge (24) is provided, on which wear-resistant edge a contact (26) occurs between the armature (4) and the stop element (16) during operation in order to limit the displacement of the armature (4) relative to the valve needle (15).

Description

technical field

[0001] The invention relates to a valve for metering fluids, in particular a fuel injection valve for an internal combustion engine. In particular, the invention relates to the field of injectors for fuel injection systems of motor vehicles, in which injectors fuel is preferably injected directly into a combustion chamber of an internal combustion engine. Background technique

[0002] A fuel injection valve for a fuel injection system of an internal combustion engine is known from DE 10 2016 225 776 A1. The known fuel injector comprises a housing, a valve needle with a valve closing body, which cooperates with a valve seat surface to form a sealing seat, and an armature of the electromagnetic actuator arranged on the valve needle. Positionally fixed stops are arranged on the valve needle, between which the armature can move corresponding to the free-form travel of the armature. Such a stop can be formed on a stop element connected to the valve needle. [0...

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