Abstract: An electromagnetic actuating device includes a pole sleeve that extends along an axial direction and an armature situated radially inside the pole sleeve. The pole sleeve has a first axial end and a second axial end. The armature is guided inside the pole sleeve. The pole sleeve has, in a region situated between the axial ends, recesses whose contours each change along the axial direction.

Abstract: An electromagnetic actuating device is described. The electromagnetic actuating device includes a pole sleeve, an armature disposed radially within the pole sleeve and a coil form of an electromagnetic coil disposed radially outside of the pole sleeve. The armature has a first armature end face at one end and a second armature end face at the opposite end. On or in the coil-form wall, the coil form has a longitudinal channel extending along the longitudinal direction of the coil form, by which a flow connection is created between the armature end faces.

Abstract: An electromagnetic actuating device is described. The electromagnetic actuating device includes a pole sleeve, an armature disposed radially within the pole sleeve and a coil form of an electromagnetic coil disposed radially outside of the pole sleeve. The armature has a first armature end face at one end and a second armature end face at the opposite end. On or in the coil-form wall, the coil form has a longitudinal channel extending along the longitudinal direction of the coil form, by which a flow connection is created between the armature end faces.