Filling an armature chamber in an actuator

A method for filling an electromagnetic actuator with fluid, wherein the electromagnetic actuator comprising:

• an armature located in an armature chamber,
• wherein the armature has a moving armature rod,
• wherein the actuator is configured to fill the armature chamber with a fluid when the armature rod moves such that the fluid is drawn into the armature chamber from a fluid chamber of the motor vehicle via a fluid path when the armature rod is connected to the fluid chamber, and
• wherein a flow resistance in the fluid path between the armature chamber and the fluid chamber is configured to be set, via at least one radial hole in the armature rod, to either a first flow resistance level or a second flow resistance level, wherein in the first flow resistance level, a fluid communication between the armature chamber and the fluid chamber is maintained, and wherein in the second flow resistance level, the fluid communication between the armature chamber and the fluid chamber is maintained,
• the method comprising:
• filling the fluid chamber with fluid or installing the fluid chamber pre-filled with fluid;
• mounting the actuator on the fluid chamber;
• and
• at least partially filling the armature chamber of the electromagnetic actuator via one or more axial movements of the armature.

An electromagnetic actuator for a motor vehicle, the electromagnetic actuator comprising:

• an armature located in an armature chamber,
• wherein the armature has a moving armature rod,
• wherein the actuator is configured to fill the armature chamber with a fluid when the armature rod moves such that the fluid is drawn into the armature chamber from a fluid chamber of the motor vehicle via a fluid path when the armature rod is connected to the fluid chamber,
• wherein a flow resistance in the fluid path between the armature chamber and the fluid chamber is configured to be set to a first resistance level or a second resistance level, and
• wherein the armature chamber has a first fluid reservoir and second fluid reservoir, wherein the radial hole at the armature chamber end is positionable at the level of first fluid reservoir and the first and second fluid reservoirs are configured to be connected for fluid transfer by a segment of the fluid path.