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Class Information
Number: 244/209
Name: Aeronautics > Aircraft sustentation > Sustaining airfoils > With lift modification > Variable > By controlling boundary layer > With suction
Description: Boundary layer control means comprising means within the aircraft to remove air from the air stream and draw it into the interior of the aircraft.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8702042 Flow body, in particular for aircraft Apr. 22, 2014
8622334 System and method for reducing the noise of pusher type aircraft propellers Jan. 7, 2014
8596584 High-lift system for an aircraft with a main wing and an adjustable slat Dec. 3, 2013
8490926 Multi-stage flow control actuation Jul. 23, 2013
8251319 Controlling the boundary layer of an airfoil Aug. 28, 2012
8191834 Cooling system on the basis of suction of a boundary layer Jun. 5, 2012
8136767 Method and system for flow control with arrays of dual bimorph synthetic jet fluidic actuators Mar. 20, 2012
8113461 Helicopter Feb. 14, 2012
8091837 Reduction of frictional losses in the region of boundary layers on surfaces, around which a fluid flows Jan. 10, 2012
8083183 Air discharge device for an aircraft Dec. 27, 2011
8033510 Lift augmentation system and associated method Oct. 11, 2011
7866609 Passive removal of suction air for laminar flow control, and associated systems and methods Jan. 11, 2011
7837155 Boundary layer suction arrangement Nov. 23, 2010
7770846 Fixing system for a leading edge to the structure of an aircraft lift plane Aug. 10, 2010
7766280 Integral suction device with acoustic panel Aug. 3, 2010
7757994 Method and device for suctioning the boundary layer Jul. 20, 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
7637462 Surface flow diverting and static charging ducted pores on wing or blade tip to reduce wake and BVI noise Dec. 29, 2009
7234921 Method for increasing operating efficiency of the rotor blade of an aerogenerator (variants) Jun. 26, 2007
7152829 Perforated skin structure for laminar-flow systems Dec. 26, 2006
7134631 Vorticity cancellation at trailing edge for induced drag elimination Nov. 14, 2006
6866233 Reconfigurable porous technology for fluid flow control and method of controlling flow Mar. 15, 2005
6866234 Method and device for altering the separation characteristics of air-flow over an aerodynamic surface via intermittent suction Mar. 15, 2005
6302360 Vortex generation for control of the air flow along the surface of an airfoil Oct. 16, 2001
6216982 Suction device for boundary layer control in an aircraft Apr. 17, 2001
6135395 Aircraft wing leading edge high lift device with suction Oct. 24, 2000
6068328 Vehicular boundary layer control system and method May. 30, 2000
6050527 Flow control device to eliminate cavity resonance Apr. 18, 2000
5971327 Mesoflap passive transpiration system and method for shock/boundary layer interaction control Oct. 26, 1999
5884873 Suction generator system in an aircraft for maintaining a laminar boundary flow Mar. 23, 1999
5823468 Hybrid aircraft Oct. 20, 1998
5806793 Cooling device for a turboshaft engine on an aircraft Sep. 15, 1998
5798465 Method for actively damping global flow oscillations in separated unstable flows and an apparatus for performing the method Aug. 25, 1998
5779196 Ram air drive laminar flow control system Jul. 14, 1998
5772156 Aircraft boundary layer control system with discharge transpiration panel Jun. 30, 1998
5740991 Method and apparatus for optimizing the aerodynamic effect of an airfoil Apr. 21, 1998
5618363 Method of manufacturing a porous material Apr. 8, 1997
5591511 Superplastically formed structure having a perforated skin Jan. 7, 1997
5590854 Movable sheet for laminar flow and deicing Jan. 7, 1997
5542630 Control of fluid flow Aug. 6, 1996
5535967 Floating speed electrically driven suction system Jul. 16, 1996
5531406 Flow-vectored trailing-edge for airfoils and jets Jul. 2, 1996
5490644 Ducted boundary layer diverter Feb. 13, 1996
5480110 Transport plane with stub tail Jan. 2, 1996
5417391 Method for control of the boundary layer on the aerodynamic surface of an aircraft, and the aircraft provided with the boundary layer control system May. 23, 1995
5368258 Arrangement for maintaining laminar air flow over gaps in aircraft engine nacelle surfaces Nov. 29, 1994
5366177 Laminar flow control apparatus for aerodynamic surfaces Nov. 22, 1994
5348256 Supersonic aircraft and method Sep. 20, 1994
5316032 Method and apparatus for laminar flow control May. 31, 1994
5297765 Turbine engine nacelle laminar flow control arrangement Mar. 29, 1994

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