Patent ID: 7914261
Filing Date: 2011-03-29
Classification: F03D,F05B,Y02E,Y10S

Abstract:
1. A wind power installation comprising: a pod including a rotor hub, a hub cladding at least partially surrounding the rotor hub and a pod cladding adjacent the hub cladding; a rotor blade mounted to the rotor hub, the rotor blade having a rotor blade leading edge, a rotor blade trailing edge, and a rotor blade cross-section at a root of the rotor blade defined in part by the rotor blade leading edge and rotor blade trailing edge, the rotor blade rotatable about a longitudinal axis to adjust a pitch of the rotor blade; and a fixed rotor blade base structure separate from the rotor blade and fixedly connected to the hub cladding, the fixed rotor blade base structure having a profile that substantially corresponds to a profile of the rotor blade near the rotor hub, the fixed rotor blade base structure being longitudinally adjacent to the rotor blade with respect to the longitudinal axis, wherein when the rotor blade is rotated to a feathered position, a distance between an edge of the root of the rotor blade facing the rotor hub and an external contour of the pod cladding is less than 50 cm.