| 摘要 |
<p>The present invention is equipped with: a valve case (11) in which multiple ports (P1, P2, P3,...) are formed; a valve body (50) that is rotationally driven inside the valve case (11) and slides over the apertures of the prescribed ports (P1, P2, P3,...), switching the state of the connections between the ports (P1, P2, P3,...); a motor (31) that rotationally drives the valve body (50); and a control unit (500) that controls the rotational velocity (ω) of the motor (31) in response to the pressure difference (ΔP) between the interior and the exterior of the valve body (50).</p> |
