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1. (WO2017035655) WIND TURBINE BLADE WITH POCKET-SHAPED DRAG PORTION, REVERSED-ORIENTATION AIRFOIL TRAILING SAME, AND AUXILIARY BLADE SUPPORTS

Pub. No.:    WO/2017/035655    International Application No.:    PCT/CA2016/051036
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Fri Sep 02 01:59:59 CEST 2016
IPC: F03D 3/06
F03D 1/06
F03D 80/00
Applicants: KELSO ENERGY LTD.
Inventors: IRELAND, Barry Ross
Title: WIND TURBINE BLADE WITH POCKET-SHAPED DRAG PORTION, REVERSED-ORIENTATION AIRFOIL TRAILING SAME, AND AUXILIARY BLADE SUPPORTS
Abstract:
A unique wind turbine blade features a drag element having a concave surface for impingement of airflow thereagainst to create a drag force, and an airfoil having a rounded edge and an opposing sharper edge. The sharp edge points toward the drag element from a side thereof to which the concave surface faces, and the rounded edge points away from the drag element on the same side thereof as the sharp edge such that the sharp edge leads the rounded edge under movement of the drag element by the drag force. A unique wind turbine features an auxiliary support bearing disposed at a spaced axial distance from the rotor, and an auxiliary blade support connection spanning from the auxiliary bearing to the blade at a distance spaced axially from where a rotor blade support connects to said blade.