ClassID:

144143

F04D27/0207 - CPC Classification

Classification description:

Control, e.g. regulation, of pumps, pumping installations or systems; Surge control by bleeding, bypassing or recycling fluids

Sub-classes:
Recent Application in this class:
#1
20260055774
2026-02-26

GAS TURBINE ENGINE BLEED AIR FLOW CONTROL

#2
20240368999
2024-11-07

TURBINE OVERSPEED PROTECTION

#3
20240364106
2024-10-31

Portable Vehicle Battery Jump Starter with Air Pump

#4
20240344524
2024-10-17

ELECTRICALLY DRIVEN SECONDARY AIR PUMP INCLUDING COMPRESSOR HAVING VANED DIFFUSER RING EMBEDDED IN VOLUTE

#5
20240040740
2024-02-01

FAN

#6
20240035488
2024-02-01

CENTRIFUGAL INCOMPRESSIBLE FLUID PUMP

#7
20230383673
2023-11-30

Method for checking bleed-off valve closing point

#8
20230250764
2023-08-10

Combustion engine including turbomachine

#9
20230208135
2023-06-29

Portable vehicle battery jump starter with air pump

#10
20230175522
2023-06-08

Stabilizer of a compressor

#11
20230148411
2023-05-11

Power assisted engine start bleed system

#12
20230124079
2023-04-20

Acoustically optimized discharge line grid with channels

#13
20230049251
2023-02-16

Air compressor and vehicle

#14
20230025097
2023-01-26

Centrifugal compressor with recirculation passage

#15
20230024289
2023-01-26

Centrifugal compressor and method of operating the same

#16
20220397119
2022-12-15

Method and apparatus for compressing a gas feed with a variable flow rate

#17
20220196024
2022-06-23

Surge control systems and methods for dynamic compressors

#18
20220186985
2022-06-16

Surge protection for a multistage compressor

#19
20220178379
2022-06-09

Compression system and method of controlling a compression system

#20
20220145809
2022-05-12

Combustion engine including turbomachine

#21
20220145808
2022-05-12

Combustion engine including turbomachine

#22
20220099107
2022-03-31

Centrifugal compressor

#23
20220010802
2022-01-13

Centrifugal compressor with recirculation passage

#24
20220010801
2022-01-13

Turbo blower capable of operating in surge area

#25
20210396236
2021-12-23

VACUUM PUMP WITH A SOLENOID VALVE

#26
20210285457
2021-09-16

SURGING PRECURSOR DETECTING DEVICE, METHOD OF DETECTING SURGING PRECURSOR, AND PROGRAM

#27
20210190084
2021-06-24

Method for controlling the outlet pressure of a compressor

#28
20210164493
2021-06-03

Centrifugal compressor and method of operating the same

#29
20210115936
2021-04-22

Shroud with continuous slot and angled bridges

#30
20210102546
2021-04-08

Methods and mechanisms for surge avoidance in multi-stage centrifugal compressors

#31
20200347789
2020-11-05

Bleed-off valve drive controller for aircraft gas turbine engine

#32
20200284265
2020-09-10

Application of machine learning to process high-frequency sensor signals of a turbine engine

#33
20200248627
2020-08-06

Power assisted engine start bleed system

#34
20200232388
2020-07-23

Scavenge pump

#35
20200208642
2020-07-02

Unloading device for HVAC compressor with mixed and radial compression stages

#36
20200025091
2020-01-23

Self-regulating back-side pressurization system for thermal insulation blankets

#37
20200011346
2020-01-09

Structural assembly for a compressor of a fluid flow machine

#38
20190309763
2019-10-10

Control method of a compressor mechanically coupled to a turbine

#39
20190301478
2019-10-03

COMPRESSOR ANTI-SURGE PROTECTOIN UNDER WET GAS CONDITIONS

#40
20190301477
2019-10-03

Adaptive anti surge control system and method

#41
20190249681
2019-08-15

Centrifugal compressor with recirculation passage

#42
20190226390
2019-07-25

System and method for controlling surge margin in a boosted engine system

#43
20190226350
2019-07-25

Turbomachines that include a casing treatment

#44
20190195082
2019-06-27

Bleed valve system

#45
20190162197
2019-05-30

Compressor with offset diffuser for integral bleed

#46
20190085854
2019-03-21

Compressor system with a gas temperature control at the inlet of the anti-surge line and relevant method

#47
20190048876
2019-02-14

Centrifugal compressor for a turbocharger, having synergistic ported shroud and inlet-adjustment mechanism

#48
20180328379
2018-11-15

Turbocharger having improved ported shroud compressor housing

#49
20180328378
2018-11-15

Turbocharger having improved ported shroud compressor housing

#50
20180314270
2018-11-01

Load-sharing in parallel fluid pumps

#51
20180274451
2018-09-27

Compressor arrangement and gas turbine engine

#52
20180258949
2018-09-13

Variable compressor

#53
20180231003
2018-08-16

Method and system for injecting slurry using concentrated slurry pressurization

#54
20180223856
2018-08-09

Compressor system with a cooling arrangement between the anti-surge valve and the compressor suction side and relevant method

#55
20180202362
2018-07-19

Injection cooled cooling air system for a gas turbine engine

#56
20180106260
2018-04-19

Method and apparatus for compressor system pressurization

#57
20180073512
2018-03-15

Assembly having two compressors, method for retrofitting

#58
20170363099
2017-12-21

Engine bleed air system with waste gate valve for compressor surge management

#59
20170284401
2017-10-05

Diffuser for a radial compressor

#60
20170198720
2017-07-13

Centrifugal compressor with liquid injection

#61
20170159960
2017-06-08

Fan array control system

#62
20170082113
2017-03-23

Method and apparatus for surge prevention control of multistage compressor having one surge valve and at least one flow measuring device

#63
20170044997
2017-02-16

Control device and control method

#64
20170016385
2017-01-19

Turbocharger arrangement having compressor wheels arranged in parallel and a method for operating a turbocharger arrangement

#65
20170002831
2017-01-05

System for discharging compressed air from a compressor

#66
20160341131
2016-11-24

Control device and control method for a fuel gas supply system

#67
20160208643
2016-07-21

Turbomachine flow path having circumferentially varying outer periphery

#68
20160160756
2016-06-09

Turbocharger combining axial flow turbine with a compressor stage utilizing active casing treatment

#69
20160131145
2016-05-12

Adjustable-trim centrifugal compressor with ported shroud, and turbocharger having same

#70
20160047392
2016-02-18

METHODS AND SYSTEMS FOR CONTROLLING TURBOCOMPRESSORS

#71
20160040680
2016-02-11

Methods and systems for antisurge control of turbo compressors with side stream

#72
20160017791
2016-01-21

Centrifugal compressor

#73
20150345833
2015-12-03

Economizer injection assembly and method

#74
20150226232
2015-08-13

Centrifugal compressor diffuser and method for controlling same

#75
20150192133
2015-07-09

Centrifugal compressor

#76
20150128640
2015-05-14

Two-stage centrifugal compressor with extended range and capacity control features

#77
20150078889
2015-03-19

Compressor casing comprising cavities having an optimised upstream shape

#78
20150071759
2015-03-12

Methods and systems for low-pressure exhaust gas recirculation

#79
20150056062
2015-02-26

Centrifugal compressor

#80
20150023777
2015-01-22

Systems and methods for directing a flow within a shroud cavity of a compressor

#81
20150003976
2015-01-01

Turbomachine, circulation structure and method

#82
20140377051
2014-12-25

Turbocharger systems and method to prevent compressor choke

#83
20140366533
2014-12-18

Supercharger-equipped internal combustion engine

#84
20140356143
2014-12-04

Assembly for a fluid flow machine

#85
20140342253
2014-11-20

Air blower for fuel cell vehicle

#86
20140301821
2014-10-09

System and method of controlling wrapping flow in a fluid working apparatus

#87
20140294564
2014-10-02

Auxiliary power units and other turbomachines having ported impeller shroud recirculation systems

#88
20140165583
2014-06-19

Bleed valve override schedule on off-load transients

#89
20140144124
2014-05-29

Gas turbine anti-icing system

#90
20140096536
2014-04-10

Bleed air slot

#91
20140069105
2014-03-13

Compressor surge prevention digital system

#92
20140069095
2014-03-13

Engine system having intake conduit with surge inhibitor and method

#93
20140037426
2014-02-06

Method for controlling a regulated-rotation-speed low-pressure centrifugal fan

#94
20140033735
2014-02-06

Turbomachine including horizontal joint heating and method of controlling tip clearance in a gas turbomachine

#95
20130333365
2013-12-19

Controlling method and system for compressed air supply to a pneumatic network, in particular in an aircraft

#96
20130272909
2013-10-17

Diaphragm with passive flow rate control for compression stage

#97
20130189094
2013-07-25

Multistage compressor with improved map width performance

#98
20130170952
2013-07-04

Method and apparatus for composition based compressor control and performance monitoring

#99
20130142632
2013-06-06

Supersonic compressor

#100
20130129477
2013-05-23

Method for operating a compressor

#101
20130121807
2013-05-16

Axial compressor for fluid-flow machines

#102
20130121804
2013-05-16

Fluid movement system and method for determining impeller blade angles for use therewith

#103
20130067882
2013-03-21

Bleed air duct joint insulation means

#104
20130058762
2013-03-07

Turbo compressor having a flow diversion channel

#105
20130047575
2013-02-28

Structure for extracting compressed air from compressor of gas turbine engine and gas turbine engine with the structure

#106
20130039781
2013-02-14

ANTICIPATION LOGIC FOR A SURGE CONTROL VALVE UTILIZED WITH LOAD COMPRESSOR

#107
20130039748
2013-02-14

STATOR FOR SUPERSONIC COMPRESSOR

#108
20130037657
2013-02-14

VORTEX GENERATORS

#109
20120328410
2012-12-27

Surge estimator

#110
20120288359
2012-11-15

Gas-turbine engine with bleed-air tapping device

#111
20120266593
2012-10-25

Compressor

#112
20120260652
2012-10-18

COMPRESSOR COMPRISING AN INSERT IN THE INLET REGION

#113
20120201654
2012-08-09

Turbine engine compressor having air injections

#114
20120121376
2012-05-17

Method of controlling a compressor and apparatus therefor

#115
20120103426
2012-05-03

Method and device performing model based anti-surge dead time compensation

#116
20120100013
2012-04-26

METHOD OF SURGE PROTECTION FOR A DYNAMIC COMPRESSOR USING A SURGE PARAMETER

#117
20120076643
2012-03-29

Sealing system for centrifugal pumps

#118
20120048387
2012-03-01

Device and method for detecting a surge in a compressor and relocating a surge margin

#119
20120014812
2012-01-19

Compressor surge control system and method

#120
20120011827
2012-01-19

Bleed air outlet in the bypass duct of a turbofan engine

#121
20120003085
2012-01-05

Compressor casing with optimized cavities

#122
20110296842
2011-12-08

Control of axial thrust by guidance of the air drawn off from a centrifugal compressor

#123
20110280738
2011-11-17

METHOD OF SURGE PROTECTION FOR A DYNAMIC COMPRESSOR USING A SURGE PARAMETER

#124
20110277498
2011-11-17

METHOD AND APPARATUS FOR CONTROLLING A REGRIGERANT COMPRESSOR, AND USE THEREOF IN A METHOD OF COOLING A HYDROCARBON STREAM

#125
20110194928
2011-08-11

BLOW-OFF SYSTEM FOR MULTI-STAGE TURBO COMPRESSOR

#126
20110167831
2011-07-14

ADAPTIVE CORE ENGINE

#127
20110130883
2011-06-02

Method and apparatus for controlling a compressor and method of cooling a hydrocarbon stream

#128
20110094220
2011-04-28

Turbo-charger surge detection

#129
20110076133
2011-03-31

Turbomachine compressor with an air injection system

#130
20110072829
2011-03-31

Gas turbine high pressure compressor fluid return and reinjection including an annular air bleeding manifold

#131
20110048046
2011-03-03

Compressor control system using a variable geometry diffuser

#132
20110040526
2011-02-17

Device and method for performing a functional test on a control element of a turbo engine

#133
20110014061
2011-01-20

Fan array control system

#134
20100300119
2010-12-02

Pump for supplying cryogenic coolant

#135
20100275613
2010-11-04

Compressor for a gas turbine

#136
20100272588
2010-10-28

Energy recovery system in a gas compression plant

#137
20100239410
2010-09-23

Multistage compressor with improved map width performance

#138
20100204899
2010-08-12

System, method, apparatus and computer program product for providing improved engine control

#139
20100202873
2010-08-12

Ceramic matrix composite turbine engine

#140
20100186447
2010-07-29

METHOD AND APPARATUS FOR CONTROLLING THE TURNDOWN OF A COMPRESSOR FOR A GASEOUS HYDROCARBON STREAM

#141
20100098527
2010-04-22

Fluid flow machine with peripheral energization near the suction side

#142
20100061840
2010-03-11

Compressor with variable-geometry ported shroud

#143
20100034637
2010-02-11

Fluid flow machine

#144
20100005799
2010-01-14

Compressor

#145
20090263234
2009-10-22

Centrifugal compressor with surge control, and associated method

#146
20090232636
2009-09-17

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

#147
20090208324
2009-08-20

Casing structure for stabilizing flow in a fluid-flow machine

#148
20090060708
2009-03-05

Radial flow compressor for a turbo-supercharger

#149
20090047117
2009-02-19

Flow control arrangement

#150
20090044543
2009-02-19

Jet engine with compressor air circulation and method for operating the jet engine

#151
20090044542
2009-02-19

APPARATUS AND METHOD FOR MONITORING COMPRESSOR CLEARANCE AND CONTROLLING A GAS TURBINE

#152
20090025364
2009-01-29

Multi-Stage Compressor, Air-Separating Apparatus Comprising Such a Compressor, and Installation

#153
20080307769
2008-12-18

Gas turbine engine anti-ice formation device and system

#154
20080267765
2008-10-30

Centrifugal compressor with a re-circulation venturi in ported shroud

#155
20080253877
2008-10-16

Control system

#156
20080247870
2008-10-09

Compressor and compressor housing

#157
20080232960
2008-09-25

Fluid return in the splitter of turbomachines with bypass-flow configuration

#158
20080206040
2008-08-28

Anti-stall casing treatment for turbo compressors

#159
20080199306
2008-08-21

Turbomachine casing with treatment, a compressor, and a turbomachine including such a casing

#160
20080193279
2008-08-14

Relief device for a turbojet and a turbojet comprising same

#161
20080155989
2008-07-03

Operating line control of a compression system with flow recirculation

#162
20080145728
2008-06-19

Method for detecting compressor surge in a fuel cell system using a mass flow meter

#163
20070274822
2007-11-29

Vacuum Pump

#164
20070271921
2007-11-29

Inclined rib ported shroud compressor housing

#165
20070240691
2007-10-18

EGR recovery system and method

#166
20070204649
2007-09-06

REFRIGERANT CIRCUIT

#167
20070147987
2007-06-28

Self-aspirated flow control system for centrifugal compressors

#168
20070137201
2007-06-21

Ported shroud with filtered external ventilation

#169
20070110587
2007-05-17

Control unit for compressor

#170
20070089420
2007-04-26

Gas turbine, in particular aircraft engine and method for generating electrical energy in a gas turbine

#171
20060283169
2006-12-21

Apparatus for the prevention of critical process variable excursions in one or more turbomachines

#172
20060198727
2006-09-07

Turbocharger compressor having ported second-stage shroud, and associated method

#173
20060147301
2006-07-06

Centrifugal compressor for turbo chiller, turbo chiller, and control method therefor

#174
20060101824
2006-05-18

Compressor control unit and gas turbine power plant including this unit

#175
20060051199
2006-03-09

Turbomachine with fluid removal

#176
20050226717
2005-10-13

Flow control arrangement

#177
20050163606
2005-07-28

Centrifugal compressor with channel ring defined inlet recirculation channel

#178
20050154479
2005-07-14

Method and apparatus for the prevention of critical process variable excursions in one or more turbomachines

#179
20050152775
2005-07-14

Secondary flow control system

#180
20050111968
2005-05-26

Compressor having casing treatment slots

#181
20050095474
2005-05-05

Centrifugal compressor surge detection using a bi-directional MFM in a fuel cell system

#182
20050076656
2005-04-14

System and method for stability control in a centrifugal compressor

#183
20050058541
2005-03-17

Casing, a compressor, a turbine, and a combustion turbine engine including such a casing

#184
20050022552
2005-02-03

Utilization of bogdown of single-shaft gas turbines to minimize relief flows in baseload LNG plants

#185
20050019152
2005-01-27

Recirculation structure for a turbocompressor

#186
20050002782
2005-01-06

Compressor

#187
18499790
2024-10-01

Systems and methods for maintaining the prime of a pump

#188
13410782
2015-07-07

Compressor surge control