Advanced modified high performance synthetic jet actuator with curved chamber

US8662412B2 · kind B2 · utility

Assignee

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

Inventors

• Tian-Bing Xu · Chesapeake, US
• Ji Su · Highland Park, US
• Xiaoning Jiang · Raleigh, US

Key dates

• Filing date: Jan 16, 2009
• Grant date: Mar 4, 2014
• Expiry date: Oct 27, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/206
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

The advanced modified high performance synthetic jet actuator with optimized curvature shape chamber (ASJA-M) is a synthetic jet actuator (SJA) with a lower volume reservoir or chamber. A curved chamber is used, instead of the conventional cylinder chamber, to reduce the dead volume of the jet chamber and increase the efficiency of the synthetic jet actuator. The shape of the curvature corresponds to the maximum displacement (deformation) profile of the electroactive diaphragm. The jet velocity and mass flow rate for the ASJA-M will be several times higher than conventional piezoelectric actuators.