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US 6,722,581 B2Granted
Synthetic jet actuators
AssigneeGeneral Electric Company
InventorSeyed G. Saddoughi
Life of this patent
Estimating the term…
Abstract
A first embodiment of the present invention provides a vortex generator in the form of a flexible piezoelectric actuator blade disposed in a wall of a flowpath, such as an airfoil. Another embodiment provides a synthetic jet actuator in which a pair of bimorph piezoelectric plates are connected by a flexible hinge.
Claims16
A synthetic jet actuator comprising:
- a first vortex generator body having first and second side plates connected by a flexible hinge and defining a first fluid cavity therebetween, wherein each side plate comprises a bimorph piezoelectric structure;
- a first discharge conduit having a first end in fluid communication with said first fluid cavity;
- and
- means for applying an alternating voltage to said first vortex generator body.
1 more element
A synthetic jet actuator comprising:
- a first vortex generator body having first and second side plates connected by a flexible hinge and defining a first fluid cavity therebetween, wherein each side plate comprises a bimorph piezoelectric structure;
- a second vortex generator body having first and second side plates connected by a flexible hinge and defining a second fluid cavity therebetween, wherein each side plate of said second vortex generator body comprises a bimorph piezoelectric structure;
- a discharge conduit having a first inlet leg, a second inlet leg, and an outlet leg, said first inlet leg disposed in fluid communication with said first fluid cavity and said outlet leg, and said second inlet leg disposed in fluid communication with said second fluid cavity and said outlet leg;
- and
- means for applying an alternating voltage to said first and second vortex generator bodies.
2 more elements
Dependencies are inferred from the claim text.