ClassID:

144381

F04D29/684 - CPC Classification

Classification description:

Details, component parts, or accessories; Combating cavitation, whirls, noise, vibration or the like ; Balancing by influencing boundary layers especially adapted for elastic fluid pumps by fluid injection

Recent Application in this class:
#1
20250264234
2025-08-21

AIR MOVING DEVICE WITH BYPASS INTAKE

#2
20250052258
2025-02-13

CENTRIFUGAL COMPRESSOR WITH LIQUID INJECTION

#3
20240426245
2024-12-26

WATER ACTUATED TIP CLEARANCE CONTROL SYSTEM FOR TURBINE ENGINE

#4
20240410397
2024-12-12

SHORT IMPELLER FOR A TURBOMACHINE

#5
20240218809
2024-07-04

Engine strut flow control

#6
20240052854
2024-02-15

Radial compressor with leading edge air injection

#7
20240003559
2024-01-04

Air moving device with bypass intake

#8
20230349570
2023-11-02

Air moving device with bypass intake

#9
20230242260
2023-08-03

Blower system

#10
20230130511
2023-04-27

Interstage capacity control valve with side stream flow distribution and flow regulation for multi-stage centrifugal compressors

#11
20220290692
2022-09-15

Centrifugal compressor with liquid injection

#12
20220235796
2022-07-28

Vacuum pump

#13
20220056915
2022-02-24

Interstage capacity control valve with side stream flow distribution and flow regulation for multi-stage centrifugal compressors

#14
20210131441
2021-05-06

Apparatus and method for diagnosing and controlling aerodynamic stability of compressor

#15
20200333027
2020-10-22

Air moving device with bypass intake

#16
20200173462
2020-06-04

Diffuser for a radial compressor

#17
20200158134
2020-05-21

Reflux device blade compressor

#18
20200063754
2020-02-27

Integrated structure of refluxer and pressure diffuser, and centrifugal compressor

#19
20200049158
2020-02-13

Diaphragm for a centrifugal compressor

#20
20190234224
2019-08-01

Passageway between a shroud and a rotor platform in a turbine engine

#21
20190203737
2019-07-04

Technique for controlling rotating stall in compressor for a gas turbine engine

#22
20190040865
2019-02-07

Active surge control in centrifugal compressors using microjet injection

#23
20180363678
2018-12-20

Inlet pre-swirl gas turbine engine

#24
20180363677
2018-12-20

Inlet pre-swirl gas turbine engine

#25
20180313231
2018-11-01

Exhaust diffuser having ejection hole and suction hole, and gas turbine having the same

#26
20180230945
2018-08-16

Aircraft comprising a rear fairing propulsion system with inlet stator comprising a blowing function

#27
20180223875
2018-08-09

Short impeller for a turbomachine

#28
20180209445
2018-07-26

Aircraft including a ducted rear thruster with an input stator having movable flaps

#29
20180172022
2018-06-21

Vane diffuser and method for controlling a compressor having same

#30
20180087391
2018-03-29

Casing with suction arm for axial turbine engine

#31
20180058309
2018-03-01

Compressor of a turbocharger having an air recirculation valve and turbocharger and motor vehicle having such a compressor

#32
20180030893
2018-02-01

Assembly and method for influencing flow through a fan of a gas turbine engine

#33
20170121030
2017-05-04

Turbofan engine and method of reducing air flow separation therein

#34
20170030375
2017-02-02

Axial flow compressor, gas turbine including the same, and stator blade of axial flow compressor

#35
20160341215
2016-11-24

Compressor tip injector

#36
20160252098
2016-09-01

Systems and methods for axial compressor with secondary flow

#37
20160245091
2016-08-25

Gas turbine engine airfoil with auxiliary flow channel

#38
20160221273
2016-08-04

Method for manufacturing a propeller blade

#39
20160130973
2016-05-12

Guide vane

#40
20160108802
2016-04-21

Internal combustion engine with exhaust-gas turbocharging and exhaust-gas recirculation

#41
20150226232
2015-08-13

Centrifugal compressor diffuser and method for controlling same

#42
20150198169
2015-07-16

Synthetic jets in compressors

#43
20150143695
2015-05-28

Removal of liquid from airfoil of equipment having gas-liquid flows

#44
20150003976
2015-01-01

Turbomachine, circulation structure and method

#45
20140356128
2014-12-04

METHOD AND DEVICE FOR STABILIZING A COMPRESSOR CURRENT

#46
20140338333
2014-11-20

Gas turbine engines having plasma flow-controlled intake systems

#47
20140105723
2014-04-17

Gas turbine diffuser blowing method and corresponding diffuser

#48
20130272845
2013-10-17

Axial compressor and control method thereof to stabilize fluid

#49
20130265848
2013-10-10

Duct having flow conducting surfaces

#50
20130180249
2013-07-18

System for injecting a fluid, compressor and turbomachine

#51
20130064673
2013-03-14

Vortex generators for generating vortices upstream of a cascade of compressor blades

#52
20130036760
2013-02-14

Centrifugal compressor with fluid injector diffuser

#53
20120328447
2012-12-27

Blade of a turbomachine

#54
20120201654
2012-08-09

Turbine engine compressor having air injections

#55
20120121400
2012-05-17

Compressor of exhaust gas turbocharger

#56
20120009065
2012-01-12

Rotor blade

#57
20110280710
2011-11-17

Reversible system for injecting and extracting gas for fluid rotary machines

#58
20110200470
2011-08-18

Compressor

#59
20110150665
2011-06-23

FAN ASSEMBLY

#60
20110103931
2011-05-05

Gas turbine compressor

#61
20110085900
2011-04-14

Housing for a compressor of a gas turbine, compressor, and method for producing a housing segment of a compressor housing

#62
20110076133
2011-03-31

Turbomachine compressor with an air injection system

#63
20110072828
2011-03-31

Gas turbine engine system providing simulated boundary layer thickness increase

#64
20110058931
2011-03-10

Injecting air into the flow path of a turbomachine compressor

#65
20110044796
2011-02-24

FLUIDFOIL TIP VORTEX DISRUPTION

#66
20110027091
2011-02-03

Axial-flow compressor, more particularly one for an aircraft gas-turbine engine

#67
20110027065
2011-02-03

Axial compressor vane

#68
20100329848
2010-12-30

Shroudless blade

#69
20100266385
2010-10-21

Separation resistant aerodynamic article

#70
20100162680
2010-07-01

GAS TURBINE ENGINE WITH EJECTOR

#71
20100150731
2010-06-17

FAN BLADES

#72
20100143140
2010-06-10

Fluid flow machine with sidewall boundary layer barrier

#73
20100098527
2010-04-22

Fluid flow machine with peripheral energization near the suction side

#74
20100021310
2010-01-28

Method for improving the flow conditions on the propeller or fan of an aircraft engine and accordingly designed hub cone

#75
20090324384
2009-12-31

Gas turbine having a peripheral ring segment including a recirculation channel

#76
20090317232
2009-12-24

Blade shroud with aperture

#77
20090263233
2009-10-22

Fluid flow machine with blade row-internal fluid return arrangement

#78
20090252596
2009-10-08

Fluid flow machine with fluid injector assembly

#79
20090238688
2009-09-24

Fluid injector nozzle for a main flow path of a fluid flow machine

#80
20090232636
2009-09-17

Multistage compressor for a gas turbine, comprising discharge ports and injection ports to stabilize the compressor flow

#81
20090220332
2009-09-03

Axial flow fluid apparatus and blade

#82
20090047117
2009-02-19

Flow control arrangement

#83
20090003989
2009-01-01

Blade with tangential jet generation on the profile

#84
20080298951
2008-12-04

Air reinjection compressor

#85
20080112799
2008-05-15

Gas turbine engine providing simulated boundary layer thickness increase

#86
20080038112
2008-02-14

Spiral air induction

#87
20080014095
2008-01-17

Gas turbine engine fan assembly and method for assembling to same

#88
20070274823
2007-11-29

Method for reducing the noise of turbo engines

#89
20070147987
2007-06-28

Self-aspirated flow control system for centrifugal compressors

#90
20070140889
2007-06-21

Flow passage structure for refrigerant compressor

#91
20070137201
2007-06-21

Ported shroud with filtered external ventilation

#92
20070122280
2007-05-31

METHOD AND APPARATUS FOR REDUCING AXIAL COMPRESSOR BLADE TIP FLOW

#93
20060153673
2006-07-13

Turbomachine exerting dynamic influence on the flow

#94
20060115358
2006-06-01

Centrifugal compressor

#95
20060104805
2006-05-18

Turbomachine with means for the creation of a peripheral jet on the stator

#96
20060067821
2006-03-30

Methods and apparatus for aerodynamically self-enhancing rotor blades

#97
20060024160
2006-02-02

Centrifugal blower having auxiliary radial inlet

#98
20050226717
2005-10-13

Flow control arrangement

#99
20050147497
2005-07-07

Method of improving the flow conditions in an axial-flow compressor, and axial-flow compressor for carrying out the method

#100
20050141990
2005-06-30

Turbomachine with fluid supply

#101
15425964
2022-05-24

Flow separation control device for an airfoil

#102
15425961
2022-05-31

Method to control flow separation over an airfoil

#103
15425943
2022-10-18

System to control flow separation over an airfoil