Siemens Aktiengesellschaft

Paul F Medina

Kevin James Standish

John M Obrecht

The present invention includes a rotor blade () having a blade body () with a leading edge () and a trailing edge () and opposed first and second surfaces () extending there between defining an airfoil shape () in cross-section. A passageway () extends through the blade body () between the first and second surfaces (). A flexible member () is sealed over one end () of the passageway (). Advantageously, the flexible member () is passively responsive to changes in a differential pressure between the first and second surfaces () to move between a deactivated position () and an activated position () where the flexible member () extends away from the airfoil shape () to function as a load mitigation device () for the wind turbine rotor blade ().

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Boulder, CO, United States of America

Paul F Medina