| 摘要 |
<p>A high speed electromagnetic valve is disclosed in which an electromagnetic actuator is provided in which an armature is moved relative to a stator having excitation coils, and a valve rod fixed to the armature and a holding means capable of holding the armature and the valve rod according to electric current. This holding means is formed in such way that a plurality of piezoelectric elements are sandwiched in a plurality of electrode plates, and holding power by the piezoelectric operation is generated to hold the armature and the valve rod.</p> |
