Patents-Review.com
ClassID:

145607 ⎘

F05D2260/961 - CPC Classification

Classification description:

Function; Preventing, counteracting or reducing vibration or noise by mistuning rotor blades or stator vanes with irregular interblade spacing, airfoil shape

Recent Application in this class:
#1
20260104012
2026-04-16

GAS TURBINE ENGINE WITH ACOUSTIC SPACING OF THE FAN BLADES AND OUTLET GUIDE VANES

 #2
20260092535
2026-04-02

ROTOR SYSTEM FOR A TURBINE ENGINE

 #3
20250382975
2025-12-18

GAS TURBINE ENGINE WITH ACOUSTIC SPACING OF THE FAN BLADES AND OUTLET GUIDE VANES

 #4
20250382974
2025-12-18

GAS TURBINE ENGINE WITH ACOUSTIC SPACING OF THE FAN BLADES AND OUTLET GUIDE VANES

 #5
20250382919
2025-12-18

GAS TURBINE ENGINE WITH ACOUSTIC SPACING OF THE FAN BLADES AND OUTLET GUIDE VANES

 #6
20250382918
2025-12-18

GAS TURBINE ENGINE WITH ACOUSTIC SPACING OF THE FAN BLADES AND OUTLET GUIDE VANES

 #7
20250382917
2025-12-18

GAS TURBINE ENGINE WITH ACOUSTIC SPACING OF THE FAN BLADES AND OUTLET GUIDE VANES

 #8
20250382916
2025-12-18

GAS TURBINE ENGINE WITH ACOUSTIC SPACING OF THE FAN BLADES AND OUTLET GUIDE VANES

 #9
20250382915
2025-12-18

GAS TURBINE ENGINE WITH ACOUSTIC SPACING OF THE FAN BLADES AND OUTLET GUIDE VANES

 #10
20250382889
2025-12-18

NON-UNIFORM AND BI-TRI STATOR SPACING FOR SWIRL RECOVERY VANE (SRV) OPEN ROTOR ENGINES

 #11
20250382884
2025-12-18

GAS TURBINE ENGINE WITH ACOUSTIC SPACING OF THE FAN BLADES AND OUTLET GUIDE VANES

 #12
20250382883
2025-12-18

GAS TURBINE ENGINE WITH ACOUSTIC SPACING OF THE FAN BLADES AND OUTLET GUIDE VANES

 #13
20250382882
2025-12-18

GAS TURBINE ENGINE WITH ACOUSTIC SPACING OF THE FAN BLADES AND OUTLET GUIDE VANES

 #14
20250334074
2025-10-30

GAS TURBINE ENGINE WITH FORWARD SWEPT OUTLET GUIDE VANES

 #15
20250283412
2025-09-11

AIRFOIL ASSEMBLY

 #16
20250283410
2025-09-11

AIRFOIL ROTOR HUB SYSTEM HAVING INTENTIONAL FREQUENCY MISTUNING

 #17
20250243763
2025-07-31

ROTOR BLADE SYSTEM OF TURBINE ENGINES

 #18
20250198300
2025-06-19

AIRFOIL FOR A TURBOFAN ENGINE

 #19
20250092790
2025-03-20

Method for manufacturing impeller

 #20
20250075634
2025-03-06

ROTOR SYSTEM FOR A TURBINE ENGINE

 #21
20250003339
2025-01-02

MISTUNING ALTERNATE BLADES IN A GAS TURBINE ENGINE

 #22
20240376824
2024-11-14

GAS TURBINE AIRFOIL NOISE REDUCTION

 #23
20240309769
2024-09-19

OUTLET GUIDE VANE ASSEMBLY FOR A TURBOFAN ENGINE

 #24
20240308673
2024-09-19

AIRCRAFT ENGINE WITH STATOR HAVING VARYING PITCH

 #25
20240271534
2024-08-15

Rotor blade system of turbine engines

 #26
20240263565
2024-08-08

Airfoil for a turbofan engine

 #27
20240209746
2024-06-27

OUTLET GUIDE VANE ASSEMBLY FOR A TURBOFAN ENGINE

 #28
20240175362
2024-05-30

AIRFOIL ASSEMBLY

 #29
20240125331
2024-04-18

Biased passages for turbomachinery

 #30
20230383675
2023-11-30

Airfoil for a turbofan engine

 #31
20230382540
2023-11-30

Aircraft engine with stator having varying pitch

 #32
20230366347
2023-11-16

PORTABLE AND WEARABLE HAND-GRASP NEURO-ORTHOSIS

 #33
20230358140
2023-11-09

Rotor blade system of turbine engines

 #34
20230349297
2023-11-02

METHOD OF MANUFACTURING A MISTUNED ROTOR

 #35
20230265783
2023-08-24

Turbocharger

 #36
20230250723
2023-08-10

Airfoil assembly with a differentially oriented stage

 #37
20230204038
2023-06-29

STALL MARGIN IMPROVEMENT OF ROTOR FAN AND HOUSING FOR A VANEAXIAL BLOWER SYSTEM

 #38
20230203953
2023-06-29

Tailored material property tuning for turbine engine fan blades

 #39
20230203952
2023-06-29

Fan blade with internal shear-thickening fluid damping

 #40
20230138644
2023-05-04

FAN AND FAN BLADES

 #41
20230132350
2023-04-27

Fan and fan blades

 #42
20230042068
2023-02-09

Diffuser with non-constant diffuser vanes pitch and centrifugal turbomachine including said diffuser

 #43
20230032288
2023-02-02

A RETURN CHANNEL WITH NON-CONSTANT RETURN CHANNEL VANES PITCH AND CENTRIFUGAL TURBOMACHINE INCLUDING SAID RETURN CHANNEL

 #44
20220213795
2022-07-07

Split shroud for vibration reduction

 #45
20220034229
2022-02-03

Bladed rotor system and corresponding method of servicing

 #46
20220018259
2022-01-20

Turbomachine blade having a sweep law with high flutter margin

 #47
20210388725
2021-12-16

Profiled structure for an aircraft or turbomachine

 #48
20210372434
2021-12-02

GAS TURBINE ENGINE WITH PARTIAL INLET VANE

 #49
20210372323
2021-12-02

Geared gas turbine engine with reduced fan noise

 #50
20210301830
2021-09-30

Blade rotor and fluid working machine comprising such a rotor

 #51
20210293149
2021-09-23

Blade cutback distribution in rotor for noise reduction

 #52
20210291962
2021-09-23

Variable pitch bladed disc

 #53
20210172322
2021-06-10

High cycle fatigue design for gas turbine engines

 #54
20210010375
2021-01-14

Mistuning of turbine blades with one or more internal cavities

 #55
20200408222
2020-12-31

Biased passages for turbomachinery

 #56
20200392968
2020-12-17

Compressor rotor for supersonic flutter and/or resonant stress mitigation

 #57
20200386154
2020-12-10

Geared gas turbine engine with reduced fan noise

 #58
20200233991
2020-07-23

Stacking of rotor blade aerofoil sections to adjust resonant frequencies

 #59
20200200126
2020-06-25

GAS TURBINE ENGINE JET

 #60
20200191157
2020-06-18

Heat dissipation fan

 #61
20200149554
2020-05-14

Fan rotor with flow induced resonance control

 #62
20200141242
2020-05-07

Mistuned rotors and methods for manufacture

 #63
20200123906
2020-04-23

Mistuned airfoil assemblies

 #64
20200049165
2020-02-13

LOW-NOISE BLOWER

 #65
20200040914
2020-02-06

Fan rotor with flow induced resonance control

 #66
20200032659
2020-01-30

SNUBBERED BLADES WITH IMPROVED FLUTTER RESISTANCE

 #67
20200032658
2020-01-30

Shrouded blades with improved flutter resistance

 #68
20200018176
2020-01-16

Compressor rotor with coated blades

 #69
20190360342
2019-11-28

Rotor blade arrangement

 #70
20190331134
2019-10-31

Method and arrangement to minimize noise and excitation of structures due to cavity acoustic modes

 #71
20190226500
2019-07-25

Gas turbine engine having a mistuned stage

 #72
20190178095
2019-06-13

Flow channel for a turbomachine

 #73
20190107123
2019-04-11

Mistuned fan for gas turbine engine

 #74
20190107119
2019-04-11

Gas turbine engine with partial inlet vane

 #75
20190106997
2019-04-11

Bladed disk

 #76
20190085868
2019-03-21

Mistuned compressor rotor with hub scoops

 #77
20190085708
2019-03-21

Compressor rotor with coated blades

 #78
20190085704
2019-03-21

Mistuned rotor for gas turbine engine

 #79
20190078589
2019-03-14

Rotor with non-uniform blade tip clearance

 #80
20190055850
2019-02-21

Tuned airfoil assembly

 #81
20190040795
2019-02-07

Surface heat exchanger and acoustic treatment

 #82
20190032490
2019-01-31

Mistuned concentric airfoil assembly and method of mistuning same

 #83
20190024581
2019-01-24

Geared gas turbine engine with reduced fan noise

 #84
20190017385
2019-01-17

Rotor with subset of blades having a cutout leading edge

 #85
20190010812
2019-01-10

Rotary machines including a hybrid rotor with hollow and solid rotor blade sets

 #86
20180372119
2018-12-27

METHOD FOR GENERATING AND SELECTING A MISTUNING PATTERN OF A BLADED WHEEL OF A TURBOMACHINE

 #87
20180340467
2018-11-29

Variable nozzle mechanism and variable displacement type exhaust turbocharger

 #88
20180340434
2018-11-29

Gas turbine with a radial-to-axial intake, variable-angle inlet guide vane therefore, and method of operation

 #89
20180320705
2018-11-08

Axial fan with unbalanced blade spacing

 #90
20180283403
2018-10-04

Fan blade surface features

 #91
20180274559
2018-09-27

Fan rotor with flow induced resonance control

 #92
20180274558
2018-09-27

Fan rotor with flow induced resonance control

 #93
20180274557
2018-09-27

Fan rotor with flow induced resonance control

 #94
20180238342
2018-08-23

Fan

 #95
20180238174
2018-08-23

Fan

 #96
20180209275
2018-07-26

Mistuned bladed rotor and associated manufacturing method

 #97
20180171803
2018-06-21

Method for manufacturing a turbomachine fan having a reduced noise level at multiple rotational frequencies of said turbomachine

 #98
20180156037
2018-06-07

Turbine blade comprising a cavity with wall surface discontinuities and process for the production thereof

 #99
20180135635
2018-05-17

Airfoil structure having a shape memory alloy actuator

 #100
20180106274
2018-04-19

Supersonic single-stage turbofan engine

 #101
20180038382
2018-02-08

Mistuned laminate airfoil

 #102
20180038235
2018-02-08

Turbine engine air guide assembly with improved aerodynamic performance

 #103
20180030996
2018-02-01

Fan blade surface features

 #104
20180017081
2018-01-18

Variable turbomachine vane cascade

 #105
20180010459
2018-01-11

LOW ENERGY WAKE STAGE

 #106
20170292403
2017-10-12

Guide vane segment

 #107
20170284205
2017-10-05

Variable pitch bladed disc

 #108
20170274980
2017-09-28

Variable pitch bladed disc

 #109
20170268537
2017-09-21

Non uniform vane spacing

 #110
20170241432
2017-08-24

Compressor rotor for supersonic flutter and/or resonant stress mitigation

 #111
20170241269
2017-08-24

Turbine blade centroid shifting method and system

 #112
20170175761
2017-06-22

Gas turbine engine with short inlet and mistuned fan blades

 #113
20170159484
2017-06-08

Instrumented flow passage of a turbine engine

 #114
20170159465
2017-06-08

Guide vane segment for a turbomachine

 #115
20170159445
2017-06-08

Mistuned concentric airfoil assembly and method of mistuning same

 #116
20170152861
2017-06-01

Biased passages for turbomachinery

 #117
20170147741
2017-05-25

Gas turbine engine

 #118
20170145840
2017-05-25

Gas turbine engine

 #119
20170114802
2017-04-27

Compressor

 #120
20170114801
2017-04-27

Low-noise blower

 #121
20170097016
2017-04-06

Blade disk arrangement for blade frequency tuning

 #122
20170058681
2017-03-02

Removably attachable snubber assembly

 #123
20160369638
2016-12-22

Rotary machines including a hybrid rotor with an integrally bladed rotor portion

 #124
20160363137
2016-12-15

Pylon matched fan exit guide vane for noise reduction in a geared turbofan engine

 #125
20160347440
2016-12-01

Blade for a turbine engine propeller, in particular a propfan engine, propeller, and turbine engine comprising such a blade

 #126
20160333894
2016-11-17

Gas turbine engine stator vane mistuning

 #127
20160305251
2016-10-20

Gas turbine engine rotor mistuning

 #128
20160298651
2016-10-13

Modal noise reduction for gas turbine engine

 #129
20160290137
2016-10-06

Blade cutback distribution in rotor for noise reduction

 #130
20160238034
2016-08-18

Fan assembly

 #131
20160186772
2016-06-30

Axial compressor rotor incorporating non-axisymmetric hub flowpath and splittered blades

 #132
20160160665
2016-06-09

Gas turbine engine stator vane asymmetry

 #133
20160146040
2016-05-26

Alternating Vane Asymmetry

 #134
20160138401
2016-05-19

Blade or vane arrangement for a turbomachine

 #135
20160123236
2016-05-05

Compressor with stator vane configuration in vicinity of bleed structure, and gas turbine engine

 #136
20160115798
2016-04-28

Rotor blade with reduced acoustic response

 #137
20160102564
2016-04-14

Rotating body provided with blades

 #138
20160090909
2016-03-31

Geared gas turbine engine with reduced fan noise

 #139
20160084265
2016-03-24

Gas turbine engine with partial inlet vane

 #140
20160076392
2016-03-17

Endwall contouring for airfoil rows with varying airfoil geometries

 #141
20160053617
2016-02-25

Rotors with modulus mistuned airfoils

 #142
20160024945
2016-01-28

Turbomachine blade arrangement with first and second guides with respective movable first and second elements to reduce vibrational response

 #143
20160024928
2016-01-28

Blade cascade for a turbomachine

 #144
20160017796
2016-01-21

Gas turbine engine having a mistuned stage

 #145
20160010461
2016-01-14

Method for detuning a rotor-blade cascade

 #146
20160003264
2016-01-07

Gas turbine blade array with reduced acoustic output

 #147
20160003095
2016-01-07

Undulating stator for reducing the noise produced by interaction with a rotor

 #148
20150330225
2015-11-19

Rotor and gas turbine engine including a rotor

 #149
20150315918
2015-11-05

Shrouded turbine blade with cut corner

 #150
20150292337
2015-10-15

Components resistant to traveling wave vibration and methods for manufacturing the same

 #151
20150285262
2015-10-08

Device and method for controlling the pitch of blades

 #152
20150260046
2015-09-17

Method for designing a turbine

 #153
20150198047
2015-07-16

Mistuned airfoil assemblies

 #154
20150167479
2015-06-18

Blade cascade

 #155
20150167478
2015-06-18

Blade cascade

 #156
20150152880
2015-06-04

Airplane turbojet fan blade of cambered profile in its root sections

 #157
20150139789
2015-05-21

Array of flow-directing elements for a gas turbine compressor

 #158
20150110604
2015-04-23

Aerofoil array for a gas turbine with anti fluttering means

 #159
20150078896
2015-03-19

Wind turbine rotor blade with serrated extension

 #160
20150063985
2015-03-05

Guide blade ring for an axial turbomachine and method for designing the guide blade ring

 #161
20150056057
2015-02-26

Alternating nozzles for radial inflow turbine

 #162
20150037165
2015-02-05

Turbine blade with sectioned pins

 #163
20150030443
2015-01-29

Split damped outer shroud for gas turbine engine stator arrays

 #164
20150003966
2015-01-01

Low-noise blower

 #165
20140377077
2014-12-25

Noise attenuation in rotating blades

 #166
20140358500
2014-12-04

Probabilistic high cycle fatigue (HCF) design optimization process

 #167
20140348630
2014-11-27

Noise reducing vane

 #168
20140341713
2014-11-20

Low pressure turbine provided with splitters at the last stator array, in particular for a gas turbine engine

 #169
20140322001
2014-10-30

Turbomachinery stationary vane arrangement for disk and blade excitation reduction and phase cancellation

 #170
20140301852
2014-10-09

Blade cascade for turbo machine

 #171
20140219792
2014-08-07

Pylon matched fan exit guide vane for noise reduction in a geared turbofan engine

 #172
20140112769
2014-04-24

Gas turbine

 #173
20140083103
2014-03-27

GAS TURBINE ASYMMETRIC NOZZLE GUIDE VANES

 #174
20140064973
2014-03-06

Impeller and method for driving fluids using the same

 #175
20140050590
2014-02-20

Intentionally frequency mistuned turbine blades

 #176
20140044546
2014-02-13

Bladed rotor for a turbomachine

 #177
20140017071
2014-01-16

Static vane assembly for an axial flow turbine

 #178
20130219922
2013-08-29

GEARED GAS TURBINE ENGINE WITH REDUCED FAN NOISE

 #179
20130209216
2013-08-15

TURBOMACHINE INCLUDING FLOW IMPROVEMENT SYSTEM

 #180
20130205795
2013-08-15

TURBOMACHINE FLOW IMPROVEMENT SYSTEM

 #181
20130202444
2013-08-08

Blade cascade and turbomachine

 #182
20130195652
2013-08-01

Modal tuning for vanes

 #183
20130142640
2013-06-06

ALTERNATE SHROUD WIDTH TO PROVIDE MISTUNING ON COMPRESSOR STATOR CLUSTERS

 #184
20130078084
2013-03-28

AIRFOIL AIR SEAL ASSEMBLY

 #185
20130058776
2013-03-07

Aerodynamic coupling between two annular rows of stationary vanes in a turbine engine

 #186
20130052021
2013-02-28

ROTOR ASYMMETRY

 #187
20120288373
2012-11-15

ROTOR WITH ASYMMETRIC BLADE SPACING

 #188
20120183405
2012-07-19

Turbine blade with laterally biased airfoil and platform centers of mass

 #189
20120148401
2012-06-14

Blade disk arrangement for blade frequency tuning

 #190
20120111008
2012-05-10

Alternative partial steam admission arc for reduced noise generation

 #191
20120099995
2012-04-26

ROTARY MACHINE HAVING SPACERS FOR CONTROL OF FLUID DYNAMICS

 #192
20120099961
2012-04-26

Rotary machine having non-uniform blade and vane spacing

 #193
20110274537
2011-11-10

BLADE EXCITATION REDUCTION METHOD AND ARRANGEMENT

 #194
20110223012
2011-09-15

Turbine rotor assembly and steam turbine

 #195
20110211947
2011-09-01

Bypass duct of a turbofan engine

 #196
20110123342
2011-05-26

Compressor with asymmetric stator and acoustic cutoff

 #197
20110052398
2011-03-03

Fan assembly

 #198
20100322755
2010-12-23

Use of non-uniform nozzle vane spacing to reduce acoustic signature

 #199
20100247310
2010-09-30

Intentionally mistuned integrally bladed rotor

 #200
20100150709
2010-06-17

Diffuser for centrifugal compressor

 #201
20100064516
2010-03-18

Stator ring configuration

 #202
20100061857
2010-03-11

Steam turbine having stage with buckets of different materials

 #203
20090169371
2009-07-02

Stator cascade of turbo type fluid machine

 #204
20090056126
2009-03-05

Method of manufacturing a rotor for a gas turbine engine that includes identifying the frequency response of the rotor and adjusting the frequency response by providing a pressure gradient within the rotor

 #205
20090028719
2009-01-29

Multi-blade fan

 #206
20080134504
2008-06-12

Method for machining an integrally bladed rotor

 #207
20070079506
2007-04-12

Method of providing non-uniform stator vane spacing in a compressor

 #208
20060275110
2006-12-07

Gas turbine compression system and compressor structure

 #209
20060029501
2006-02-09

Mixed tuned hybrid blade related method

 #210
20050232763
2005-10-20

Methods and apparatus for assembling gas turbine engines

 #211
19197884
2025-12-16

Gas turbine engine with acoustic spacing of the fan blades and outlet guide vanes

 #212
19190507
2025-09-30

Gas turbine engine with acoustic spacing of the fan blades and outlet guide vanes

 #213
19190284
2025-09-23

Gas turbine engine with acoustic spacing of the fan blades and outlet guide vanes

 #214
18758112
2025-12-09

Open rotor with fixed guide vane/stator

 #215
18741627
2025-12-16

Non-uniform and bi-tri stator spacing for swirl recovery vane (SRV) open rotor engines

 #216
17825081
2023-04-25

Cooling fan

 #217
17665483
2023-03-21

Low-noise blade for an open rotor