Patent ID: 9239040
Filing Date: 2016-01-19
CPC Classification: F03D,F05B,Y02E

Claim Text:
1. An assembly configuration between a wind turbine rotor blade and a rotor huh, comprising: a rotor hub having one or more pitch bearings, said bearings having an outer diameter race and an inner diameter race; a rotor blade affixed to said pitch bearings, said rotor blades comprising a root end having an outer diameter; an adaptor configured between said root end and said bearing, said adaptor affixed to said inner diameter race at a first location and said root end affixed to said adaptor; said adaptor defining a mounting surface for said root end radially inward of said inner diameter race such that said root end outer diameter is less than an inner diameter of said pitch bearing; and said root end separately bolted directly to said mounting surface radially inward of said first location for attachment of said rotor blade said pitch bearing; and said adaptor comprising a flat, planar, member so as to lie flush against said inner diameter race, said adaptor and said inner diameter race having the same outer diameter.