| 摘要 |
A device and a method for reducing pressure fluctuations in the suction pipe of a water turbine or water pump or water pump turbine having an impeller (10) that has a plurality of rotor blades and a hub (11), having a housing that has a guide apparatus for regulating the flow of water through said impeller, and having a suction pipe (14) for guiding the water flowing through the impeller, wherein, in an operating state that deviates from the optimal operating range, at least one displacer (15, 25) is situated in the region of the suction pipe (14) and extends in an axial extension of the impeller (10), and wherein the at least one displacer (15, 25) is completely removed from the flow region in the optimal operation range. |
