| 摘要 |
<p>The proportional control valve of this invention comprises a main fluid passage (13), a valve portion (15) having a flap (4), a magnetic element (32) fixed relatively to the main passage (13), a movable body (23) disposed inside the magnetic element (32) and actuated by the magnetic element to directly or indirectly displace the flap (4) of the valve portion and an electric control unit (37) connected to a detector means (39) for detecting characteristic data to be controlled, and for controlling the movable body in accordance with the detected data. This proportional control valve allows a precise and easy fluid flow rate control, as the fluid flow rate can be continuously and precisely varied in proportion to variations in the data detected by the detector (39).</p> |
