| 摘要 |
<p>Flow diffuser (24) producing a laminar flow for use in a control valve, comprises: a) an annular body, configured to rest in a control valve space, having: - a top and bottom wall (26, 28) defined by outer top and bottom flat surfaces spaced, respectively, from inner upper surface and inner lower surface and outer curved side surface, the body being of axial height and radial annular length and having an outlet flow direction perpendicular to the axis, b) a cylindrical inlet opening (32) through the body along the axis, c) a number of vanes (30), extending axially from inner upper surface to the inner lower surface, to define a number of outlet passages (34), each having a start in fluid connection with, and evenly disposed about, the outside of inlet opening, the width of each start being substantially equal to circumference of the body divided by the number of outlet passages which curve outwardly toward the outlet flow direction until all the outlet passages adjoin without overlap.</p> |
