Patent ID: 9541069
Date: 2017-01-10
CPC Classifications: F03D,F05B,Y02E,Y02P

Claim:
1. A nacelle shell structure which is attachable to a main structure of a wind turbine, comprising: a top sub-structure; a first side sub-structure connected to the top sub-structure; a second side sub-structure connected to the top sub-structure and to the first side substructure, forming a hollow cylinder; an end sub-structure connected to the top sub-structure, the first side sub-structure and the second side sub-structure, wherein the nacelle shell structure is attachable to the main structure at only three static points, and wherein said wind turbine further comprises, a lock-labyrinth for positioning between a rotating part with a rotation axis and a stationary part of said wind turbine, said lock-labyrinth comprising: a shield structure; and a support structure, wherein the shield structure is located radially outward of the support structure and protruding the support structure in an axial direction, wherein the shield structure comprises a nose protruding radially inward and being located at an axial position where the support structure forms a U shaped water-tight channel that opens radially outwards of the support structure; and further comprising a gap between the rotating part and the stationary part, wherein water or dirt entering the gap is led into the water-tight channel by the nose.