Abstract: An electromagnetically actuated valve, includes an axially movable valve needle that includes at least one armature and one spherical valve-closure member. The armature forms a closing-member support, which receives the valve-closure member in a downstream end area. In this context, the end area encompasses the valve-closure member such that at least one channel, in direct connection with a longitudinal bore of the armature, is formed on the surface of the valve-closure member. The valve is well suited for use in fuel injection systems of mixture-compressing internal combustion engines having externally supplied ignition.

Abstract: An electromagnetically operated valve, in particular a fuel injection valve for fuel injection systems, has a core surrounded by a magnet coil and an armature adjacent to the core for operating a valve closing body that interacts with a valve seat body. A reflux body surrounding the armature is magnetically isolated from the core by an isolation point. The core and/or the reflux body is made of a ferritic or ferromagnetic material whose permeability depends on the mechanical stress in the material. The core and/or the reflux body is mechanically deformed in a boundary area between the core and the reflux body to form the magnetic isolation point.

Abstract: In a valve, the number of components of the valve pipe is reduced, so that the number of joints and connecting points is also reduced,. The entire valve pipe is manufactured from magnetically conductive material, so that one can dispense with non-magnetic adapters. The valve is especially suited for use in fuel-injection systems of mixture-compressing internal-combustion engines having externally supplied ignition.