| 摘要 |
For protection against wear the nozzle needle (1) and/or the nozzle ring (2) of a Pelton turbine are provided with a solid, replaceable shell (3, 4) of highly wear-resistant material, which is applied to the body of the needle (1) and/or of the nozzle ring (2) by means of a bonded (7, 13), soldered (7, 13), press-fit (12) or screw connection (8). <IMAGE>
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