| 摘要 |
A water-jet propeller comprises a water-jet tube in which a screw with a drive and systems of control and automation is located. In the water-jet tube an accelerator of fluid motion is installed, which comprises an external rigid tube, a device to create hydraulic impacts, which comprises an elastic tube concentrically located relative to the external rigid tube and entering a hydraulic ring containing a rotating valve, a pump, pipes and a fluid source, while at the inlet to the area of annular gap between the external rigid pipe and flexible pipe of accelerator of fluid motion a toroidal valve is mounted with possibility of displacement along the water-jet tube on pins that are installed in openings of radial inserts of the water-jet tube and rigidly fixed on the outer surface of the valve, and the inner curved surface is mounted for reciprocal direction of return moving wave into the annular gap between the external rigid tube and the flexible tube of accelerator. |
