Switched permanent magnet in form of pneumatic cylinder, comprises magnetic piston whose magnetic field is controlled by piston motion in cylinder

摘要

The magnetic piston magnetic field is controlled by the piston motion in the cylinder. The piston magnetic field in working position penetrates the cylinder housing (1.1) at a defined point, preferably the cylinder bottom. In the rest position the piston magnetic field does not penetrate the above mentioned defined point. The magnetic piston stops its flow ducts in end positions. The magnetic piston may be in the form of a back plate for permanent magnets. The cylinder bottom may contain a pull-rod.