| 摘要 |
A spray nozzle which transforms a stream of water into a thin-walled tubular sheet which is atomized over a hydrostep. The nozzle comprises a body, the main portion of which has a cylindrical contour and a central passage of venturi shape, with the passage being of cloverleaf formation in horizontal cross-section, presenting a plurality of helical recesses which open onto the venturi passage. The lower end of the latter is generally bell-shaped and formed with a cylindrical hydrostep. A conduit for air under pressure enters the venturi passage from the upper end of the body and has a discharge end at the axis of the venturi passage and slightly above its waist.
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