Patent ID: 8740544

Claim:
A wind turbine assembly comprising, an elongate generally cylindrical rotor operable to rotate about an axis, an elongate rotor housing that houses the rotor and which is adapted to be secured to a roof, and a flow regulator within the housing that is adapted to regulate wind flow to the rotor, wherein the housing has a wind inlet and a wind outlet, the flow regulator is orientatable in an open orientation, a closed orientation and a partially open orientation, and wherein the flow regulator comprises a generally cylindrical member that generally surrounds the rotor, and has wind apertures that are aligned with, out of alignment with, and partially aligned with the inlet and outlet of the housing in the open orientation, closed orientation and partially open orientation respectively, or a generally partially cylindrical member that generally surrounds the rotor, and has a wind aperture that is aligned with, out of alignment with, and partially aligned with the inlet or outlet of the housing in the open orientation, closed orientation and partially open orientation respectively.