| 摘要 |
A digging wheel for a suction dredger vessel which digging wheel rotates about a horizontal axis and has at its circumference a plurality of closely spaced partly overlapping scoops while the suction mouth in the interior of the wheel has an extension which extends into the scoops and fits through the outlet of the scoops. The effective passage between the leading edge of a scoop and the outlet edge of a preceding scoop is smaller than the outlet and any further passage towards the pump is of the same or larger magnitude than the outlet of a scoop. |
