| 摘要 |
<p>The invention concerns an electromagnetic actuator having a blade (22) made of ferromagnetic material fixed to the valve stem, springs provided to maintain the inoperative valve in a median position between completely open and closed positions and a single coil (38) mounted on the ferromagnetic circuit. Said circuit has, combined with the blade, two stable paths of magnetic current each corresponding to a low air-gap value.</p> |
