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Class Information
Number: 244/204.1
Name: Aeronautics > Aircraft sustentation > Sustaining airfoils > With lift modification > Variable > By controlling boundary layer > Actively controlled vortex generator
Description: . Subject matter in which the means to effect a change in the boundary layer flow generates vortices in close proximity to the surface of the airfoil.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8657238 Retractable vortex generator for reducing stall speed Feb. 25, 2014
8646729 Deployable aerodynamic devices with reduced actuator loads Feb. 11, 2014
8616494 Switchable vortex generator and array formed therewith, and uses of the same Dec. 31, 2013
8602361 Laminar flow monitor Dec. 10, 2013
8469315 Deployable flap edge fence Jun. 25, 2013
8444384 Rotor blade assembly and method for adjusting loading capability of rotor blade May. 21, 2013
8382029 Wingless hovering of micro air vehicle Feb. 26, 2013
8353482 System for global flow field management using distributed, surface-embedded, nano-scale boundary layer actuation Jan. 15, 2013
8348200 Synthetic jet actuator system and related methods Jan. 8, 2013
8348199 Boundary layer energiser Jan. 8, 2013
8286909 Boundary layer propulsion airship with related system and method Oct. 16, 2012
8256720 Smart vortex generator, and aircraft, vessel, and rotary machine being equipped with the same Sep. 4, 2012
8240616 Method and system for global flow field management using distributed, surface-embedded, nano-scale boundary layer actuation Aug. 14, 2012
8220753 Systems and methods for controlling flows with pulsed discharges Jul. 17, 2012
8172178 Device for generating aerodynamic disturbances so as to protect the outer surface of an aircraft against elevated temperatures May. 8, 2012
8167554 Actuatable surface features for wind turbine rotor blades May. 1, 2012
8146862 Active vortex control system (AVOCS) method for isolation of sensitive components from external environments Apr. 3, 2012
8118265 Devices and methods to improve wing aerodynamics at low airspeeds Feb. 21, 2012
8087617 Retractable nacelle chine Jan. 3, 2012
8061986 Wind turbine blades with controllable aerodynamic vortex elements Nov. 22, 2011
8047233 Apparatus and method for generating vortexes in fluid flow adjacent to a surface Nov. 1, 2011
8016245 Dynamic bumps for drag reduction at transonic-supersonic speeds Sep. 13, 2011
7975961 Air induction control Jul. 12, 2011
7878457 Retractable vortex generator Feb. 1, 2011
7866608 Device for controlling a vortex trail generated by the oblong element of an aircraft bearing surface Jan. 11, 2011
7861966 Supersonic aircraft footprint spreading control system and method Jan. 4, 2011
7832689 Element for generating a fluid dynamic force Nov. 16, 2010
7823839 Airfoil performance modification using synthetic jet actuators Nov. 2, 2010
7794011 Aerodynamic properties of ground vehicles Sep. 14, 2010
7784732 Boundary-layer-ingesting inlet flow control system Aug. 31, 2010
7753316 Deployable flap edge fence Jul. 13, 2010
7637455 Inlet distortion and recovery control system Dec. 29, 2009
7431244 Device for the generation of eddies and method for operating of said device Oct. 7, 2008
7334760 Flow control device and method of controlling flow Feb. 26, 2008
7275721 Arrangement for generating vortexes Oct. 2, 2007
7070144 Aircraft and missile afterbody flow control device and method of controlling flow Jul. 4, 2006
7059664 Airflow control devices based on active materials Jun. 13, 2006
6837465 Flow control device and method of controlling flow Jan. 4, 2005
6827314 Aircraft with active control of the warping of its wings Dec. 7, 2004
6715717 Method and apparatus for inducing controlled vortices to reduce afterbody drag Apr. 6, 2004
6682021 System and method for actively manipulating and controlling fluid flow over a surface Jan. 27, 2004
6668638 Active vortex control with moveable jet Dec. 30, 2003
6644598 Modification of fluid flow about bodies and surfaces through virtual aero-shaping of airfoils with synthetic jet actuators Nov. 11, 2003
6543726 Fluid flow straightening techniques Apr. 8, 2003
6527229 Aerodynamic lift generating device Mar. 4, 2003
6484971 Control of flow separation and related phenomena on aerodynamic surfaces Nov. 26, 2002
6471157 Device and method for reducing aircraft noise Oct. 29, 2002
6427948 Controllable vortex generator Aug. 6, 2002
6412732 Apparatus and method for enhancement of aerodynamic performance by using pulse excitation control Jul. 2, 2002
6302360 Vortex generation for control of the air flow along the surface of an airfoil Oct. 16, 2001

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