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Methods and apparatus for assembling and operating semi-monocoque rotary machines

A semi-hard shell, shell technology, applied in mechanical equipment, engines, wind turbines, etc., can solve problems such as increasing infrastructure costs and operating costs

Inactive Publication Date: 2007-11-28
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Added weight often increases capital and operating costs

Method used

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  • Methods and apparatus for assembling and operating semi-monocoque rotary machines
  • Methods and apparatus for assembling and operating semi-monocoque rotary machines
  • Methods and apparatus for assembling and operating semi-monocoque rotary machines

Examples

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Embodiment Construction

[0013] FIG. 1 is a schematic diagram of a typical wind turbine generator 100 . In a typical embodiment, wind turbine generator 100 is a horizontal axis wind turbine. Alternatively, wind turbine 100 may be a vertical axis wind turbine. Wind turbine 100 has a tower 102 extending from a support surface 104 , a nacelle 106 mounted on tower 102 , and a rotor 108 mounted on nacelle 106 . Rotor 108 has a rotatable hub 110 and a plurality of rotor blades 112 mounted to hub 110 . In the exemplary embodiment, rotor 108 has three rotor blades 112 . In alternative embodiments, the rotor 108 may have more or less than three rotor blades 112 . In a typical embodiment, tower 102 is made of steel pipe with a cavity (not shown in FIG. 1 ) extending between support surface 104 and nacelle 106 . In an alternative embodiment, the tower 102 is a lattice tower. The height of tower 102 is selected according to factors and conditions known in the art.

[0014] Blades 112 are positioned about ro...

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Abstract

A wind turbine generator (100) includes at least one rotating member and a semi- monocoque nacelle structure (200) that includes at least one stationary member extending over at least a portion of the rotating member. During operation the wind turbine generator transmits loads to the semi-monocoque nacelle structure.

Description

technical field [0001] The present invention relates generally to rotary machines, and more particularly to methods and apparatus for assembling and operating wind turbine nacelles. Background technique [0002] Typically, a wind turbine generator includes a rotor with a plurality of blades. Blades attached to a rotatable hub on these rotors convert mechanical wind energy into mechanical rotational torque to drive one or more generators. The generator is usually, but not always, rotatably connected to the rotor through a gearbox. The gearbox boosts the otherwise low rotational speed of the turbine rotor for the generator to efficiently convert the rotating mechanical energy into electrical energy fed into the utility grid. It is also possible to directly drive the wind turbine generator without using gears. The rotor, generator, gearbox and other components are usually mounted in a housing or nacelle on top of a foundation, which can be a truss or tubular tower. [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D1/00F03D9/00
CPCF05B2240/14Y02E10/722F03D11/00Y02E10/726F03D11/0008F03D80/00F03D80/70Y02E10/72F03D80/80
Inventor B·S·巴格帕利J·P·F·莱昂斯P·罗加尔
Owner GENERAL ELECTRIC CO
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