| 摘要 |
The valve allows permanently magnetised stopping in a primary position, and electro-magnetic changeover from the primary to another position. Two pot-type magnets of circular cross-section, with their closed lower sides set against each other. On the central section of a tube (1) a soft iron ring-shaped permanent magnet is located. On the periphery of the ring magnet, pole shells of the length of the magnet core tube are fitted, and the open face side of each pot magnet is closed by a circular anchor plate. The plate is retained in position by a permanent magnetic process, and the other is separated from the magnet by an air gap. A magnet coil is inserted in each pot magnet for release of the two anchor plates. |
