| 摘要 |
<p>A motorised valve has a valve body having an input and output tubes, a seat assembled with the valve body, a rotary valve core associated with the seat, and a piezoelectric drive for rotation of said valve core, the piezoelectric drive including a piezoelectric generator of radially directed standing acoustic waves, which is assembled with the valve body and is connectable with a pulse current source, and a rotor operatively connected with the piezoelectric generator and kinematically assembled with the rotary valve core so as to rotate said valve core when the rotor is actuated by the piezoelectric generator.</p> |
