Method and means for enhancing the efficiency of water turbines
OwnerJan Otto Haugeninventor
Life of this patent
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Abstract
A water turbine with a rotatable turbine wheel having a wheel disc, buckets fixed to the wheel disc, and nozzle expelling a water jet on the bucket. The rotatable wheel and the nozzle are arranged in a casing with a water outlet. The interior of the casing reduces splash back of discharging water and detrimental water spray on the rotatable wheel. An energy damping device is attached on stationary, water splash exposed parts inside the turbine casing to dissipate energy from water of high velocity leaving the buckets and dense pulverized water mist.
Claims14
A method for a water turbine having a turbine wheel, configured to be rotated, including a wheel disc, buckets fixed to the wheel disc, and at least one nozzle for expelling an incoming water jet on the buckets, wherein the turbine wheel and the at least one nozzle are arranged in a turbine casing with a water outlet, the method comprising:
- reducing splash back of water leaving the wheel on the turbine wheel by an energy-damping material attached on and conforming to a stationary, water-splash exposed surface inside the turbine casing to dissipate energy at least from high velocity water leaving the buckets and from a dense pulverized water mist, wherein the energy-damping material does not sealingly engage the wheel disc.
A water turbine comprising:
- a turbine wheel, configured to rotate, including a wheel disc and buckets fixed to the wheel disc;
- at least one nozzle expelling a water jet on the buckets;
- a casing having a water outlet, wherein the turbine wheel and the at least one nozzle are arranged in the casing;
- and
- an interior of the casing including a splash back shield to deflect water leaving the wheel and a water spray on the rotatable turbine wheel, wherein the splash back shield includes damping material fixed and conforming to a stationary, water splash exposed surface inside the casing, wherein the damping material does not sealingly engage the turbine wheel.
A water turbine comprising:
- a turbine wheel, configured to be rotated, including a wheel disc and buckets fixed to the wheel disc;
- a casing housing the turbine wheel, wherein the casing housing has a water-splash exposed surface proximate to the turbine wheel;
- at least one nozzle in the casing housing configured to expel a water jet on the buckets;
- a damping material fixed to and covering at least a portion of the water-splash exposed surface, wherein the damping material is selected from the group consisting of at least one of a mat, expanded metal, grating, and chains, wherein the damping material is not sealingly engaged to the turbine wheel.
Dependencies are inferred from the claim text.