Electromagnetic actuating device and camshaft adjuster

Abstract

The invention relates to an electromagnetic actuating device (1) for a camshaft adjustment device of an internal combustion engine of a motor vehicle, with an elongated actuating element (2) forming an engagement region on the end side and movable by the force of a coil device (29) provided in a stationary manner, which actuating element preferably has in parts a cylindrical covering contour and penetrates a cut-out (8) in permanent magnet means (6) arranged on the shell side, which are constructed for cooperating with a stationary core region (5) comprising a core body (15), and which actuating element lies in a switching position with a contact surface (11), on the end side on the actuating element side, against a contact surface (10) on the core region side. Provision is made that the contact surface (11) on the core region side is formed at least in part by a contact element (16) fixed in the core body (15), which contact element is constructed from a material which has a greater hardness than the material of the core body (15).

Dependencies are inferred from the claim text.