Patent ID: 9194375
Filing Date: 2015-11-24
Classification: F03D,F05B,Y02E,Y02P,Y10T

Abstract:
1. A nacelle for a wind turbine having a hub and a main bearing, comprising: a main frame of the nacelle; a housing disposed generally about the main frame and defining an interior and an exterior of the nacelle; and a slot in the main frame at one end of the nacelle for accommodating the main bearing for the hub, wherein said slot is configured as a horseshoe-shaped cavity in the main frame of the nacelle with an orifice and an inner extension, said orifice having a width when viewed in a plane perpendicular to a substantially horizontal axis, said width of the orifice being larger than a transverse dimension of the main bearing when the main bearing is in position and viewed in the plane perpendicular to the substantially horizontal axis, and wherein the horseshoe-shaped cavity is arranged such that the main bearing is positionable in the cavity from the exterior of the nacelle without passing through the interior of the nacelle.