| 摘要 |
PCT No. PCT/GB89/00947 Sec. 371 Date May 11, 1990 Sec. 102(e) Date May 11, 1990 PCT Filed Aug. 15, 1989 PCT Pub. No. WO90/01882 PCT Pub. Date Mar. 8, 1990.An apparatus for transporting particulate material, such as cut tobacco, including a duct having an inlet for receiving material to be transported, an outlet for transported material, air inlet zones in the duct wall for the passage of air under pressure into the duct and air outlet zones in the duct wall wherein the inlet zones and outlet zones are positioned in the duct wall and are so dimensioned to cause an air velocity in the duct which has a first velocity component directed to urge the material transported away from the wall of the duct and a second velocity component directed to urge the material along the length of the duct.
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