| 摘要 |
<p>A cyclone inlet unit (1 or 20) comprising three vanes (3, 4, 5 or 21, 22, 23) defining three inlet orifices (8, 9, 10 or 31, 32, 33). The vanes (3, 4, 5 or 21, 22, 23) are shaped so that the orifices (8, 9, 10 or 31, 32, 33) are each of gradually decreasing cross-sectional area towards the interior of the unit (1 or 20). The vanes (3, 4, 5) may be integrally formed with a plate-like portion (2). Alternatively the vanes (21, 22, 23) are detachably secured and their psoitions adjustable.</p> |
