| 摘要 |
A vortex valve (1) that comprises a valve body (11); an inlet chamber (20); a fluid distribution chamber (31); a vortex chamber (2); two tangential ducts (3, 4) through which two opposing flows are injected from the fluid distribution chamber into the vortex chamber; a displaceable control element (5) installed at the inlet side of the tangential ducts comprising two throttling elements (6, 8), such that each throttling element is actuable to reduce the flow rate through a different tangential duct; and means for imparting axial displacement to the control element differentially to actuate the throttling elements whereby to control the flow rate through the tangential ducts. |
