| 摘要 |
The present invention relates to a method and means for enhancing the eff iciency of water turbines, in particular Pelton turbines. The water turbine comprises a rotatable turbine wheel having a wheel disc and preferably a plu rality of buckets fixed to the wheel disc, and further comprising at least o ne nozzle for expelling a water jet on the at least one bucket. The rotatabl e wheel and the at least one nozzle are arranged in a casing with a water ou tlet, and the interior of the casing is provided with means for reducing spl ash back of discharging water and detrimental water spray on the rotatable w heel. One or more energy damping devices is/are attached on stationary, wate r splash exposed parts inside the turbine casing in order to dissipate energ y at least from water of high velocity leaving the buckets and/or dense pulv erised water mist.
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