ClassID:

145608

F05D2260/962 - CPC Classification

Classification description:

Function; Preventing, counteracting or reducing vibration or noise by means of "anti-noise"

Recent Application in this class:
#1
20260117657
2026-04-30

RIBBED STRUCTURAL SWIRL RECOVERY VANE WITH ACOUSTIC CAPABILITY

#2
20240044291
2024-02-08

NOISE REDUCTION DEVICE, NOISE REDUCTION METHOD, AND PROGRAM

#3
20230258129
2023-08-17

HYBRID TURBOMACHINE FOR AIRCRAFT WITH AN ACTIVE ACOUSTIC CONTROL SYSTEM

#4
20230184164
2023-06-15

Box-shaped air intake silencer with vertical baffles for gas turbine system

#5
20220185468
2022-06-16

Ducted fan of an aircraft, aircraft, and component thereof

#6
20200400076
2020-12-24

Active device for attenuating acoustic emissions for a turbojet engine including controlled turbines

#7
20200291964
2020-09-17

System for reducing interference noise of rotor and stator blades, and flight vehicle

#8
20200232417
2020-07-23

Steam turbine and construction method of steam turbine

#9
20190376529
2019-12-12

Aerofoil

#10
20190292983
2019-09-26

Rotor-stator blade interference noise reduction system and flying object

#11
20190287510
2019-09-19

Noise reduction apparatus and jet fan

#12
20190039746
2019-02-07

Acoustic honeycomb panel with integrated electrical heater

#13
20190017439
2019-01-17

Turbomachine vane comprising an electroacoustic source with improved assembly mode, row of outlet guide vanes and turbomachine comprising such a vane

#14
20180258855
2018-09-13

Flutter damper for a turbofan engine

#15
20180224353
2018-08-09

Blade health inspection using an excitation actuator and vibration sensor

#16
20180209345
2018-07-26

Piezoelectric vibratory control for static engine components

#17
20180135635
2018-05-17

Airfoil structure having a shape memory alloy actuator

#18
20180066545
2018-03-08

Turbomachine test bench with active noise control

#19
20180052039
2018-02-22

Piezo actuated high speed air valve used for blade and component excitation

#20
20170314433
2017-11-02

Resonators with interchangeable metering tubes for gas turbine engines

#21
20170204296
2017-07-20

Carbon flocked tape

#22
20170175775
2017-06-22

Gas turbine engine with one piece acoustic treatment

#23
20170122255
2017-05-04

CHEVRON SYSTEM FOR GAS TURBINE ENGINE

#24
20170074289
2017-03-16

Silencer duct having silencing element and couplers

#25
20170044934
2017-02-16

Bonding method

#26
20170022903
2017-01-26

Sound attenuation apparatus and method

#27
20160326955
2016-11-10

METHOD AND APPARATUS FOR OPERATING A COMBUSTION DEVICE

#28
20160312799
2016-10-27

Noise reduction using IGV flow ejections

#29
20160258294
2016-09-08

Rotor of a turbine of a gas turbine with improved cooling air routing

#30
20160146153
2016-05-26

Secure control system for multistage thermo acoustic micro-CHP generator

#31
20160146039
2016-05-26

Acoustic attenuation with adaptive impedance

#32
20160115798
2016-04-28

Rotor blade with reduced acoustic response

#33
20160084156
2016-03-24

Variable flow-restricting turbine assembly for a turbocharger, corresponding turbocharger engine and vehicle, and operating method

#34
20160017775
2016-01-21

Noise attenuating acoustic panel

#35
20150361885
2015-12-17

Acoustically optimized air inlet

#36
20150292521
2015-10-15

Blower and method for decreasing eddy noise

#37
20150003959
2015-01-01

Gas turbine engine having configurable bypass passage

#38
20130048414
2013-02-28

Soundproofing panel for turbomachine and turbomachine comprising such a panel

#39
20120031501
2012-02-09

Aviation engine inlet with tangential blowing for buzz saw noise control

#40
20110232288
2011-09-29

METHOD OF REDUCING COMBUSTION INSTABILITIES BY CHOOSING THE POSITION OF A BLEED AIR INTAKE ON A TURBOMACHINE

#41
20110139927
2011-06-16

Panel for an air intake of an aircraft nacelle that ensures optimized acoustic treatment and frost treatment

#42
20110110763
2011-05-12

Exhaust Ring and Method to Reduce Turbine Acoustic Signature

#43
20110048025
2011-03-03

Nozzle plasma flow control utilizing dielectric barrier discharge plasma actuators

#44
20110040469
2011-02-17

Gas turbine combustion dynamics control system and method

#45
20100276225
2010-11-04

Apparatus and method for improving the damping of acoustic waves

#46
20100132330
2010-06-03

Method and apparatus for suppressing aeroengine contrails

#47
20100043443
2010-02-25

METHOD AND APPARATUS FOR SUPPRESSING AEROENGINE CONTRAILS

#48
20100006368
2010-01-14

Method of adjusting acoustic impedances for impedance-tunable acoustic segments

#49
20090293481
2009-12-03

Method and device for damping thermoacoustic oscillations, in particular in a gas turbine

#50
20090226302
2009-09-10

Method and apparatus for determining clearance between moving and static members in a machine

#51
20090025393
2009-01-29

Auxiliary power unit assembly

#52
20090019925
2009-01-22

Method and device for determining the occurrence of rotating stall in a compressor's turbine blade II

#53
20080298967
2008-12-04

Wind turbine blade with anti-noise devices

#54
20070137616
2007-06-21

Pulse detonation firing detuning and frequency modulated firing

#55
20070028593
2007-02-08

Low-noise pulse jet engine

#56
20060272887
2006-12-07

Assembly and method for fan noise reduction from turbofan engines using dynamically adaptive Herschel-Quincke tubes

#57
20060005545
2006-01-12

Localized arc filament plasma actuators for noise mitigation and mixing enhancement

#58
20050205351
2005-09-22

Noise reduction tubes

#59
20050191169
2005-09-01

Silencer for ventilation system and methods

#60
20050060982
2005-03-24

Method and system for reduction of jet engine noise