| 摘要 |
<p>The insert (20) has a powder retainer (14), a gas inlet (17), a mixture outlet (15) and a swirl chamber (24), where a pressurized gas swirls powder in the swirl chamber. The powder is discharged as a powder-gas-mixture via a discharge opening (16). Segments (45) form different large regulating openings that are alternatively arranged before the discharge opening to regulate the discharge of the powder-gas-mixture. The segments are fastened to a cylindrical or tapered mixing chamber (25) by supporting webs (44).</p> |
