ClassID:

72307

B64C2230/20 - CPC Classification

Classification description:

Boundary layer controls by passively inducing fluid flow, e.g. by means of a pressure difference between both ends of a slot or duct

Recent Application in this class:
#1
20250257688
2025-08-14

AIRCRAFT STRUCTURE HAVING AN IMPROVED INLET OPENING FOR ENGINE AIR

#2
20240246661
2024-07-25

Flow control ducted fans

#3
20240218809
2024-07-04

Engine strut flow control

#4
20240124131
2024-04-18

AIRCRAFT GENERATING LARGER THRUST AND LIFT BY FLUID CONTINUITY

#5
20240109646
2024-04-04

METHODS FOR OPTIMIZING BOUNDARY LAYER CONTROL (BLC) SYSTEMS AND RELATED SYSTEMS

#6
20230009263
2023-01-12

BOUNDARY LAYER SUCTION DESIGN BY USING A CORE OF A WINGTIP VORTEX FOR A LIFT-GENERATING BODY

#7
20230002036
2023-01-05

Aircraft wing with sequentially-timed bellows assembly for optimizing boundary layer control

#8
20220349391
2022-11-03

Variable-porosity panel systems and associated methods

#9
20220324554
2022-10-13

Propeller-driven helicopter or airplane

#10
20220212805
2022-07-07

Ice protection and boundary layer suction system for an aircraft aerofoil

#11
20210214072
2021-07-15

Vertical tail unit for flow control

#12
20210214071
2021-07-15

Propeller and propeller blade

#13
20210107631
2021-04-15

Nacelle for an aircraft aft fan

#14
20210061449
2021-03-04

Vortex generator passive deployment system

#15
20210053683
2021-02-25

VERTICAL-TAILLESS AIRCRAFT

#16
20200391851
2020-12-17

Aircraft wing with bellows assembly for optimizing a boundary layer control system

#17
20200055591
2020-02-20

Aerodynamic body having perforated skin

#18
20200047875
2020-02-13

Methods, systems, and apparatuses for in-line variably porous surfaces

#19
20200001980
2020-01-02

Aircraft generating larger thrust and lift by fluid continuity

#20
20190329871
2019-10-31

APPARATUS AND SYSTEM FOR DRAG REDUCTION

#21
20190283866
2019-09-19

Leading edge structure for a flow control system of an aircraft

#22
20190152584
2019-05-23

Simplified fluidic oscillator for controlling aerodynamics of an aircraft

#23
20190118923
2019-04-25

Apparatus for laminar flow control

#24
20190106202
2019-04-11

Vertical tail unit for flow control

#25
20190106201
2019-04-11

Vertical tail unit for flow control

#26
20190016444
2019-01-17

Leading edge structure for a flow control system of an aircraft

#27
20180339784
2018-11-29

Variable geometry engine inlet for high speed aircraft

#28
20180305019
2018-10-25

FIXED-WING AIRCRAFT WITH INCREASED STATIC STABILITY

#29
20180297692
2018-10-18

REDUCED BLADE VORTEX INTERACTION

#30
20180265183
2018-09-20

Aerodynamic devices for enhancing lift and reducing drag

#31
20180244370
2018-08-30

PASSIVE FLOW CONTROL MECHANISM FOR SUPPRESSING TOLLMIEN-SCHLICHTING WAVES, DELAYING TRANSITION TO TURBULENCE AND REDUCING DRAG

#32
20180148163
2018-05-31

CONTROL SURFACE COMPONENT FOR A HIGH-LIFT DEVICE OF AN AIRCRAFT AND PRODUCTION METHOD THEREFOR

#33
20180079489
2018-03-22

Airfoil for an aircraft having reduced noise generation

#34
20170341736
2017-11-30

Apparatus, system and method for drag reduction

#35
20170267332
2017-09-21

Boundary-layer-influencing aerodynamic part and method for producing the same

#36
20170152023
2017-06-01

Simplified fluidic oscillator for controlling aerodynamics of an aircraft

#37
20170001730
2017-01-05

Aircraft engine nacelle

#38
20160311521
2016-10-27

Systems, methods, and apparatuses for airfoil configuration in aircraft

#39
20160311520
2016-10-27

Optimized nacelle profile and plenum shape for boundary layer ingestion active laminar flow control

#40
20160137288
2016-05-19

Aerofoil and wings for air vehicles

#41
20160031550
2016-02-04

Submerged vortex generator

#42
20150360766
2015-12-17

Leading edge nose structure on the vertical stabilizer of an aircraft

#43
20150083258
2015-03-26

Apparatus and methods for extending hybrid laminar flow control

#44
20130327879
2013-12-12

High speed compound rotary wing aircraft

#45
20130313355
2013-11-28

Pitching stabilization means and a rotary wing aircraft including such means

#46
20130153711
2013-06-20

Minimally intrusive wingtip vortex wake mitigation using inside-mold-line surface modifications

#47
20130048794
2013-02-28

Wing leading edge venting

#48
20120280088
2012-11-08

Method of laminar flow control using a door assembly

#49
20110044812
2011-02-24

AIRFOIL WITH FLOW DEFLECTOR

#50
20100181435
2010-07-22

Door assembly for laminar flow control system

#51
20100078522
2010-04-01

Apparatus, system and method for drag reduction

#52
20090212165
2009-08-27

Passive removal of suction air for laminar flow control, and associated systems and methods

#53
20090194640
2009-08-06

Apparatus system and method for drag reduction

#54
20090173834
2009-07-09

Element for generating a fluid dynamic force

#55
20080272241
2008-11-06

Device for Reducing a Drag Produced by the Relative Displacement of a Body and Fluid

#56
20080217468
2008-09-11

MAST FOR AN AIRCRAFT NACELLE INCORPORATING MEANS FOR LIMITING THE APPEARANCE OF VIBRATIONS, IN PARTICULAR IN CERTAIN FLIGHT REGIMES, AT A HIGH MACH NUMBER AND LOW LIFT

#57
20050207895
2005-09-22

Aerofoils

#58
20050178923
2005-08-18

Process for the recovery of the energy from the air in pressurised areas of aircraft

#59
20050017126
2005-01-27

Slotted aircraft wing

#60
14218819
2017-07-11

Parasitic drag induced boundary layer reduction system and method