Actuator for hydraulic valve

An actuator for a hydraulic valve for a cam phaser, the actuator comprising:

• a magnetisable actuator housing that envelops a magnet coil;
• a pole group that is arranged in a housing receiver opening of the magnetisable actuator housing,
• wherein the pole group includes a pole core and a pole tube,
• wherein the pole core and the pole tube are connected by a connection bar and the pole core is connected with the connection bar by a pole core cone, or the pole tube is connected with the connection bar by a pole tube cone,
• wherein an armature is received axially movable in an inner space of the pole group,
• wherein an axial movement of the armature is limited at a first armature face by a terminal cover of the pole group that is arranged opposite to the first armature face and the axial movement of the armature is limited at a second armature face by a support disc that is arranged opposite to the second armature face,
• wherein the armature is supported by a rod that extends through the an entirety of the armature in an axial direction and provides a rod-rod support,
• wherein the armature is fixed at the rod,
• wherein a cavity is arranged between the armature and the rod and extends from the rod in a radial direction and in the axial direction,
• wherein the cavity is configured to at least partially receive the terminal cover or the support disc, and
• wherein the rod-rod support is formed by supporting the rod in the terminal cover and in the support disc.