Magnetic valve for pneumatic actuator for actuating circuits or clutches in automatic transmissions of commercial motor cars, has permanent magnet magnetized along axial direction and arranged coaxial to armature and to coil core

摘要

The valve (1) has an electromagnetic coil (2) provided with a coil axis (a), and a movable armature (6) arranged along a direction of the coil axis of the coil. A valve seat (11) is connected with the movable armature. A permanent magnet magnetized along an axial direction is arranged coaxial to the movable armature and to a coil core (5), where the core has an outer end surface (5a). The coil is attached to a voltage source by an H-bridge. The coil comprises a cylindrical cavity (4), and a case (7) is firmly received in the cavity. Independent claims are also included for the following: (1) a method for operating a magnetic valve (2) a circuit device for energization of a coil of the magnetic valve.