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Class Information
Number: 244/204
Name: Aeronautics > Aircraft sustentation > Sustaining airfoils > With lift modification > Variable > By controlling boundary layer
Description: Variable lift modifier comprising means within the airfoil, or externally adjacent the surface and upstream of the trailing edge, intended to affect a flow characteristic of that portion of the stream of air which is immediately adjacent the surface of the airfoil.

Sub-classes under this class:

Class Number Class Name Patents
244/204.1 Actively controlled vortex generator 64
244/212 Having trailing edge flap 59
244/207 With blowing 224
244/205 With ionic or electrostatic surface 43
244/210 With nose slot 39
244/206 With rotating member 26
244/209 With suction 77

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8702042 Flow body, in particular for aircraft Apr. 22, 2014
8657237 Flying object for transonic or supersonic velocities Feb. 25, 2014
8640986 Turbojet nacelle and method for controlling separation in a turbojet nacelle Feb. 4, 2014
8632031 Systems and methods for attenuation of noise and wakes produced by aircraft Jan. 21, 2014
8616494 Switchable vortex generator and array formed therewith, and uses of the same Dec. 31, 2013
8602361 Laminar flow monitor Dec. 10, 2013
8596585 Slats with a flexible trailing edge Dec. 3, 2013
8538738 Predicting transition from laminar to turbulent flow over a surface Sep. 17, 2013
8473122 Method for actively deforming an aerodynamic profile Jun. 25, 2013
8444092 Metal sheets and plates having friction-reducing textured surfaces and methods of manufacturing same May. 21, 2013
8434723 Low drag asymmetric tetrahedral vortex generators May. 7, 2013
8424809 Control of aerodynamic forces by variable wetted surface morphology Apr. 23, 2013
8382042 Structure with reconfigurable polymer material Feb. 26, 2013
8382040 Hamilton H.N2 laminar flow diskette wing Feb. 26, 2013
8382043 Method and apparatus for aerodynamic flow control using compact high-frequency fluidic actuator arrays Feb. 26, 2013
8359825 Microjet creation and control of shock waves Jan. 29, 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
8276851 Control of aerodynamic forces by variable wetted surface morphology Oct. 2, 2012
8251312 Method and system for control of upstream flowfields of vehicle in supersonic or hypersonic atmospheric flight Aug. 28, 2012
8251317 System and method for varying the porosity of an aerodynamic surface Aug. 28, 2012
8251319 Controlling the boundary layer of an airfoil Aug. 28, 2012
8240616 Method and system for global flow field management using distributed, surface-embedded, nano-scale boundary layer actuation Aug. 14, 2012
8196871 Control of shockwave-boundarylayer-interaction using MEMS plasma devices Jun. 12, 2012
8191835 Wing of an aircraft Jun. 5, 2012
8193476 Solid-fuel pellet thrust and control actuation system to maneuver a flight vehicle Jun. 5, 2012
8172178 Device for generating aerodynamic disturbances so as to protect the outer surface of an aircraft against elevated temperatures May. 8, 2012
8136767 Method and system for flow control with arrays of dual bimorph synthetic jet fluidic actuators Mar. 20, 2012
8128037 Apparatus and method for passive purging of micro-perforated aerodynamic surfaces Mar. 6, 2012
8091836 Rotary wing system with ion field flow control Jan. 10, 2012
8074939 Active control of surface drag Dec. 13, 2011
8074938 Active control of a body by altering surface drag Dec. 13, 2011
8033510 Lift augmentation system and associated method Oct. 11, 2011
7975961 Air induction control Jul. 12, 2011
7967258 Dual bimorph synthetic pulsator Jun. 28, 2011
7954769 Deployable aerodynamic devices with reduced actuator loads, and related systems and methods Jun. 7, 2011
7931236 Deflection device for a stream body Apr. 26, 2011
7866608 Device for controlling a vortex trail generated by the oblong element of an aircraft bearing surface Jan. 11, 2011
7839304 Method and system for alerting aircrew to unsafe vibration levels Nov. 23, 2010
7735782 Flow surface for a three-dimensional boundary-layer flow, especially on a swept wing, a swept tail plane or a rotor Jun. 15, 2010
7726609 High-performance low-noise aircraft exhaust systems and methods Jun. 1, 2010
7686257 Dual bimorph synthetic pulsator Mar. 30, 2010
7637455 Inlet distortion and recovery control system Dec. 29, 2009
7604201 Nacelle drag reduction device for a turbofan gas turbine engine Oct. 20, 2009
7510149 System and method to control flowfield vortices with micro-jet arrays Mar. 31, 2009
7475853 Method and system for regulating external fluid flow over an object's surface, and particularly a wing and diffuser Jan. 13, 2009
7448578 Aircraft with forward opening inlay spoilers for yaw control Nov. 11, 2008
7410133 Miniature trailing edge effector for aerodynamic control Aug. 12, 2008

1 2 3 4

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