Jet spoiler arrangement for wind turbine

Patent · Tue Mar 12 00:00:00 EST 1985

OSTI ID:5328099

Cyrus, J D; Kadlec, E G; Klimas, P C

An air jet spoiler arrangement is provided for a Darrieus-type vertical axis wind-powered turbine. Air is drawn into hollow turbine blades through air inlets at the ends thereof and is ejected in the form of air jets through small holes or openings provided along the lengths of the blades. The air jets create flow separation at the surfaces of the turbine blades, thereby inducing stall conditions and reducing the output power. A feedback control unit senses the power output of the turbine and controls the amount of air drawn into the air inlets accordingly.

• Assignee: The United States of America as represented by the United States Department of Energy
• Patent Number(s): US 4504192
• OSTI ID: 5328099
• Resource Relation: Patent File Date: Filed date 15 Sep 1983; Other Information: PAT-APPL-532430
• Country of Publication: United States
• Language: English

Related Subjects

17 WIND ENERGY
VERTICAL AXIS TURBINES
CONTROL SYSTEMS
DARRIEUS ROTORS
JETS
TURBINE BLADES
MACHINERY
ROTORS
TURBINES
TURBOMACHINERY
WIND TURBINES
170602* - Wind Energy Engineering- Turbine Design & Operation