Method of replacing wind turbine equipment

Details Method of replacing wind turbine equipment Method of replacing wind turbine equipment

2011-03-01

2011-03-01

Bryant, David P (Department: 3726)

Metal working

Method of mechanical manufacture

Impeller making

C029S426300, C290S055000, C254S334000, C254S335000

Reexamination Certificate

active

07895744

ABSTRACT:
A method of replacing wind turbine equipment, which can reduce the cost for replacing large equipment disposed in a nacelle, is provided. The method is characterized by including a winch-hoisting step for winching up to a nacelle a reciprocating winch that is used for replacing the wind turbine equipment disposed in the nacelle mounted atop a tower and a balance supporting the wind turbine equipment with an ordinarily-installed winch provided on a girder that moves in the nacelle; a wire-hoisting step for hoisting a wire that is used for the replacement of the wind turbine equipment to the nacelle from a drum disposed on the ground; a winch-replacing step for detaching the ordinarily-installed winch from the girder and attaching the winch for replacement to the girder; and a wire-arranging step for arranging the hoisted wire on the reciprocating winch and a movable pulley provided between the balance and the girder.

REFERENCES:
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patent: 2006/0120809 (2006-06-01), Ingram et al.
patent: 2006/0151767 (2006-07-01), Wobben
patent: 2008/0216301 (2008-09-01), Hansen et al.
patent: 2009/0267038 (2009-10-01), Teichert et al.
patent: 2010/0028152 (2010-02-01), Numajiri et al.
patent: 2010/0043227 (2010-02-01), Numajiri
patent: 1101934 (2001-05-01), None
patent: 1291521 (2003-03-01), None
patent: 2004512244 (2004-04-01), None
patent: 2004293455 (2004-10-01), None
patent: 2005531709 (2005-10-01), None
ISR for PCT/JP2008/059799 mailed Sep. 2, 2008.

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