Electromagnetic positioning device for camshaft adjustment in internal combustion engine, has mechanical latch unit for locking anchor unit when force exerted by anchor unit on coil unit exceeds predetermined value

摘要

The device has an engaging end portion (20) movable along a movement axis (28), and an anchor unit for exerting a force on a coil unit (10), where the anchor unit includes a plunger portion (13) and a permanent magnet (14). A mechanical latch unit (23) locks the anchor unit when the exerting force exceeds a predetermined value, and unlocks the anchor unit when the force is below the predetermined value. The latch unit cooperates with a detent portion (26) of the anchor unit, where the latch unit is operated by a reaction force of the anchor unit.