| 摘要 |
<p>The device comprises a case in which there are provided an inlet orifice connected to the first point of pressure, a fluid return orifice and a passage of variable section interposed between these orifices. A slide valve member is movably mounted in the case for regulating the passage section in accordance with the differential pressure of the two points of pressure, in opposition to the action of an opposing spring. A detecting chamber is provided in the case and connected to the second point of pressure. The detecting chamber is separated from the inlet orifice by a sealing device having a section which varies in accordance with the displacement of the slide valve member and on which sealing device the differential pressure acts.</p> |
