US 10,890,157 B2
Method and system for servicing wind turbine rotor
Gaylon Mitchell Pfeiffer, Boston, MA (US); Ulrich Werner Neumann, Simpsonville, SC (US); Brent Hamilton Holloway, Chapel Hill, NC (US); Michael Royce Johnson, Campton, NH (US); Kevin Thomas Costain, Baltic, SD (US); Forrest Christopher Hach, Lake Benton, MN (US); and Howard Lee Hansen, Jr., Lorena, TX (US)
Assigned to General Electric Company, Schenectady, NY (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Mar. 8, 2018, as Appl. No. 15/915,302.
Application 15/915,302 is a continuation of application No. 14/257,538, filed on Apr. 21, 2014, granted, now 9,964,095.
Prior Publication US 2018/0209399 A1, Jul. 26, 2018
Int. Cl. F03D 1/06 (2006.01); F03D 13/10 (2016.01); F03D 80/50 (2016.01)
CPC F03D 1/0658 (2013.01) [F03D 13/10 (2016.05); F03D 80/50 (2016.05); F05B 2230/61 (2013.01); F05B 2240/916 (2013.01); Y02E 10/72 (2013.01); Y02E 10/728 (2013.01); Y02P 70/50 (2015.11)] 10 Claims
OG exemplary drawing
 
1. A method to enable servicing of a rotor of a wind turbine, the rotor having a rotatable hub with a plurality of rotor blades mounted to the hub, the method comprising:
positioning a first rotor blade of the plurality of rotor blades of the rotor in a six o'clock position;
installing a rotor blade sling on the rotor by placing loops formed via at least one strap of the rotor blade sling over respective rabbit-eared rotor blades of the plurality of rotor blades at a ten o'clock position and a two o'clock position, respectively, the rotor blade sling further having one or more support straps secured to the at least one strap that extend downward from the hub and one or more rigid bars extending from the hub and out away from the hub, the one or more rigid bars coupled to the at least one strap and the one or more support straps, the one or more support straps supporting the first rotor blade in a six o'clock position; and
coupling the first rotor blade to the one or more support straps of the rotor blade sling.