| 摘要 |
A radial blower has an impeller with a radially vaned rim rotatably mounted in a housing adjacent a discharge conduit. The portions of the housing on both sides of the discharge conduit incline outwardly away from the impeller to form wedge-shaped inlet and discharge chambers on both sides of the impeller. The larger ends of the suction and discharge chambers are joined by a return or bypass channel which directs the main portion of flow away from the back into the impeller. The portion of the impeller between the suction and discharge chambers is bordered by a concavely curved flow diverting element having a radius of curvature slightly smaller than the impeller and a maximum distance at its mid-section, which is substantially equal to the radial length of the vanes on the rim of the impeller. An inlet or suction opening in the front wall of the housing is eccentrically disposed relative to the impeller and adjacent the inlet chamber. The inlet conduit is inclined toward the suction chamber. A set of curved deflectors is disposed substantially parallel to each other in the central chamber of the housing within the impeller vanes and substantially in line with the discharge chamber and conduit and having tip ends fairly close to the inner ends of the impeller vanes of the discharge conduit.
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