| 摘要 |
PCT No. PCT/SE88/00269 Sec. 371 Date Nov. 16, 1989 Sec. 102(e) Date Nov. 16, 1989 PCT Filed May 20, 1988 PCT Pub. No. WO88/09287 PCT Pub. Date Dec. 1, 1988.The present invention relates briefly to a jet propulsion assembly for ships, the assembly including a propeller pump of an axial or a semiaxial type. The propeller pump has a pump housing (6), the inlet of which is connected to a water inlet channel and the outlet of which is connected to an outlet device. In the water flow channel through the pump housing a pump wheel (11) is rotably journalled in a stationary casing (8). A drive shaft (12) of the pump wheel (11) extends from a drive unit through the water inlet channel to the pump wheel (11). The pump wheel (11) and the drive shaft (12) are connected by a flexible coupling (13) which is essentially torsional resistant but permits angular deviations between the drive shaft (12) and the rotational shaft of the pump wheel (11). |
