| 摘要 |
A permanent magnet apparatus has a first ferromagnetic member and a second ferromagnetic member movable in working direction relative to the first ferromagnetic member. A controller displaces a permanent magnet between an engaged position adjacent to the ferromagnetic members with the flux being perpendicular to the working direction and a disengaged position spaced from the first and second ferromagnetic members. The second ferromagnetic member is biased from the first position to the second position relative to the first ferromagnetic member when the driving magnet is in the engaged position so as to be arranged to selectively drive an output movement in response to an input to the controller which displaces the ferromagnetic members and the driving magnet relative to one another to store potential energy by placement of the driving magnet in the engaged position subsequent to locating the ferromagnetic members in the first position.
|
