Jet engine exhaust nozzle flow effector

US7958733B2 · kind B2 · utility

Assignee

• The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · US

Inventors

• Travis L. Turner · Yorktown, US
• Roberto J. Cano · Yorktown, US
• Richard J. Silcox · Poquoson, US
• Ralph D. Buehrle · Williamsburg, US
• Christopher M. Cagle · Yorktown, US
• Randolph H. Cabell · Hampton, US
• George C. Hilton · Hampton, US

Key dates

• Filing date: Jun 14, 2007
• Grant date: Jun 14, 2011
• Expiry date: Dec 28, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T50/60
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A jet engine exhaust nozzle flow effector is a chevron formed with a radius of curvature with surfaces of the flow effector being defined and opposing one another. At least one shape memory alloy (SMA) member is embedded in the chevron closer to one of the chevron's opposing surfaces and substantially spanning from at least a portion of the chevron's root to the chevron's tip.