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Title: Wind tower service lift

Abstract

An apparatus used for maintaining a wind tower structure wherein the wind tower structure may have a plurality of legs and may be configured to support a wind turbine above the ground in a better position to interface with winds. The lift structure may be configured for carrying objects and have a guide system and drive system for mechanically communicating with a primary cable, rail or other first elongate member attached to the wind tower structure. The drive system and guide system may transmit forces that move the lift relative to the cable and thereby relative to the wind tower structure. A control interface may be included for controlling the amount and direction of the power into the guide system and drive system thereby causing the guide system and drive system to move the lift relative to said first elongate member such that said lift moves relative to said wind tower structure.

Inventors:
; ; ;
Publication Date:
Research Org.:
Wind Tower Systems, LLC, Heber City, UT (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1176435
Patent Number(s):
8,016,268
Application Number:
12/130,922
Assignee:
Wind Tower Systems, LLC OSTI
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
17 WIND ENERGY; 42 ENGINEERING

Citation Formats

Oliphant, David, Quilter, Jared, Andersen, Todd, and Conroy, Thomas. Wind tower service lift. United States: N. p., 2011. Web.
Oliphant, David, Quilter, Jared, Andersen, Todd, & Conroy, Thomas. Wind tower service lift. United States.
Oliphant, David, Quilter, Jared, Andersen, Todd, and Conroy, Thomas. 2011. "Wind tower service lift". United States. doi:. https://www.osti.gov/servlets/purl/1176435.
@article{osti_1176435,
title = {Wind tower service lift},
author = {Oliphant, David and Quilter, Jared and Andersen, Todd and Conroy, Thomas},
abstractNote = {An apparatus used for maintaining a wind tower structure wherein the wind tower structure may have a plurality of legs and may be configured to support a wind turbine above the ground in a better position to interface with winds. The lift structure may be configured for carrying objects and have a guide system and drive system for mechanically communicating with a primary cable, rail or other first elongate member attached to the wind tower structure. The drive system and guide system may transmit forces that move the lift relative to the cable and thereby relative to the wind tower structure. A control interface may be included for controlling the amount and direction of the power into the guide system and drive system thereby causing the guide system and drive system to move the lift relative to said first elongate member such that said lift moves relative to said wind tower structure.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2011,
month = 9
}

Patent:

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  • An advanced aileron configuration is described for wind turbine rotors featuring an independent, lift generating aileron connected to the rotor blade. The aileron has an airfoil profile which is inverted relative to the airfoil profile of the main section of the rotor blade. The inverted airfoil profile of the aileron allows the aileron to be used for strong positive control of the rotation of the rotor while deflected to angles within a control range of angles. The aileron functions as a separate, lift generating body when deflected to angles within a shutdown range of angles, generating lift with a componentmore » acting in the direction opposite the direction of rotation of the rotor. Thus, the aileron can be used to shut down rotation of the rotor. The profile of the aileron further allows the center of rotation to be located within the envelope of the aileron, at or near the centers of pressure and mass of the aileron. The location of the center of rotation optimizes aerodynamically and gyroscopically induced hinge moments and provides a fail safe configuration. 24 figs.« less
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