Shaft for wind turbine generator and method for assembling wind turbine generator
OwnerSujith Sathian, Bharat Sampathkumaran Bagepalliinventors
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Abstract
A method of assembling a wind turbine generator includes fabricating a first portion of a shaft from a first steel alloy having a first strength property value. The method also includes fabricating a second portion of the shaft from a second steel alloy having a second strength property value. The first strength property value is greater than the second strength property value. The method further includes welding the second portion of the shaft to the first portion of the shaft.
Claims20
A method for assembling a wind turbine generator, said method comprising:
- fabricating a first portion of a shaft from a first steel alloy having a first strength property value;
- fabricating a second portion of the shaft from a second steel alloy having a second strength property value, wherein the first strength property value is greater than the second strength property value;
- and
- welding the second portion of the shaft to the first portion of the shaft.
A wind turbine rotor comprising:
- a first portion of a shaft fabricated from a first steel alloy having a first strength property value;
- and
- a second portion of said shaft fabricated from a second steel alloy having a second strength property value, wherein the first strength property value is greater than the second strength property value, said second portion of said shaft is welded to said first portion of said shaft.
A wind turbine generator comprising:
- at least one of a gearbox and a generator;
- and
- a rotor comprising:
- a hub;
- a first portion of a shaft fabricated from a first steel alloy having a first strength property value coupled to said hub;
- and
- a second portion of said shaft fabricated from a second steel alloy having a second strength property value, wherein the first strength property value is greater than the second strength property value, said second portion of said shaft is coupled to said first portion of said shaft and to at least one of said gearbox and said generator.
Dependencies are inferred from the claim text.