| 摘要 |
<p>A venturi nozzle (1) for high entrainment vacuum use for random orbital sander dust collection having a nozzle design which improves the nozzle jet (10) to promote a uniform velocity profile (7) across the diameter of the jet nozzle (1) as well as a thin shear layer (6) by providing a shallow angle nozzle (1) approach, a smooth transition flow into the nozzle throat (2) and an accurate nozzle departure radius (3).</p> |
