ClassID:

144149

F04D27/0253 - CPC Classification

Classification description:

Control, e.g. regulation, of pumps, pumping installations or systems; Surge control by throttling

Recent Application in this class:
#1
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2025-07-24

METHOD FOR OPERATING A MULTI-STAGE AIR COMPRESSION SYSTEM, MULTI-STAGE AIR COMPRESSION SYSTEM, AND FUEL CELL SYSTEM

#2
20250129791
2025-04-24

CENTRIFUGAL COMPRESSOR

#3
20250101987
2025-03-27

CENTRIFUGAL COMPRESSOR WITH ENERGY RECOVERY FROM A RECYCLE LINE

#4
20250052251
2025-02-13

AVIATION COMPRESSOR ACTIVE STABILIZATION CONTROL METHOD BASED ON DISTURBANCE OBSERVATION AND COMPENSATION

#5
20240255070
2024-08-01

System, method, and valve assembly for surge protection

#6
20240133385
2024-04-25

Methods of manufacturing turbomachines having decoupled collectors

#7
20240003289
2024-01-04

Centrifugal compressor and turbocharger

#8
20230392603
2023-12-07

Compressor device and method for controlling such a compressor device

#9
20230375004
2023-11-23

Centrifugal compressor and turbocharger

#10
20220403849
2022-12-22

Control method for centrifugal compressor and air conditioning system

#11
20220372984
2022-11-24

Turbomachines with decoupled collectors

#12
20220307510
2022-09-29

Centrifugal compressor

#13
20220178379
2022-06-09

Compression system and method of controlling a compression system

#14
20220145903
2022-05-12

Centrifugal compressor and turbocharger

#15
20220136513
2022-05-05

Gas compressor with a plurality of air realease systems each having an air release valve and an air regulating valve

#16
20220099107
2022-03-31

Centrifugal compressor

#17
20220099101
2022-03-31

Centrifugal compressor

#18
20210388780
2021-12-16

Throttle valve for a centrifugal compressor

#19
20210372433
2021-12-02

VARIABLE GEOMETRY DIFFUSER HAVING EXTENDED TRAVEL AND CONTROL METHOD THEREOF

#20
20210270279
2021-09-02

Method and system for compressor operating range extension via active valve control

#21
20210115942
2021-04-22

Compressor inlet adjustment mechanism

#22
20210017988
2021-01-21

Gas compressor

#23
20200376914
2020-12-03

Throttle assembly and pressure control system having such a throttle assembly

#24
20200347850
2020-11-05

FLOW-MODIFYING DEVICE FOR COMPRESSORS

#25
20200340401
2020-10-29

Translating inlet for adjusting airflow distortion in gas turbine engine

#26
20200325903
2020-10-15

Turbomachines with decoupled collectors

#27
20200291851
2020-09-17

Turbocharger having adjustable-trim centrifugal compressor including divergent-wall diffuser

#28
20200284265
2020-09-10

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

#29
20200217241
2020-07-09

Radial compressor for a charging device of an internal combustion engine, charging device and lamellas for an iris diaphragm mechanism, and method for producing such lamella

#30
20200011231
2020-01-09

Method of operating a motor vehicle and motor vehicle

#31
20190338785
2019-11-07

Variable geometry diffuser having extended travel and control method thereof

#32
20190338699
2019-11-07

Method for controlling an inlet-adjustment mechanism for a turbocharger compressor

#33
20190309763
2019-10-10

Control method of a compressor mechanically coupled to a turbine

#34
20190285086
2019-09-19

Method for controlling a trim-adjustment mechanism for a centrifugal compressor

#35
20190264603
2019-08-29

Turbocharger for an internal combustion engine

#36
20190249687
2019-08-15

Diffuser for a centrifugal compressor and centrifugal compressor having the same

#37
20190211742
2019-07-11

Internal combustion engine

#38
20190195122
2019-06-27

TURBOCHARGER HAVING VARIABLE COMPRESSOR TRIM

#39
20190162200
2019-05-30

Inlet-adjustment mechanism for turbocharger compressor, having sealing means preventing recirculation and/or oil migration into the mechanism

#40
20190136755
2019-05-09

Centrifugal compressor for a turbocharger, having pressure-balanced adjustable-trim mechanism

#41
20190085697
2019-03-21

Compressor and gas turbine including the same

#42
20190078586
2019-03-14

Systems and method for a variable inlet device of a compressor

#43
20190048876
2019-02-14

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

#44
20180283736
2018-10-04

Low back pressure flow limiter

#45
20180073512
2018-03-15

Assembly having two compressors, method for retrofitting

#46
20180045107
2018-02-15

Passive inlet-adjustment mechanisms for compressor, and turbocharger having same

#47
20180038377
2018-02-08

Method of extended thermodynamic turbine mapping via compressor inlet throttling

#48
20170298953
2017-10-19

Adjustable-trim centrifugal compressor for a turbocharger

#49
20170284297
2017-10-05

Translating inlet for adjusting airflow distortion in gas turbine engine

#50
20170211588
2017-07-27

Radial turbocharger comprising a swirl generator

#51
20170152862
2017-06-01

Method for controlling a trim-adjustment mechanism for a centrifugal compressor

#52
20170152856
2017-06-01

Load sharing control for compressors in series

#53
20170074275
2017-03-16

Control system and method for centrifugal compressor

#54
20160265424
2016-09-15

Adjustable-trim centrifugal compressor, and turbocharger having same

#55
20160230650
2016-08-11

Passive and semi-passive inlet-adjustment mechanisms for compressor, and turbocharger having same

#56
20160222875
2016-08-04

Tunable turbocharger compressor cover

#57
20160208808
2016-07-21

Regulator assembly and centrifugal compressor

#58
20160177956
2016-06-23

Adjustable-trim centrifugal compressor, and turbocharger having same

#59
20160160868
2016-06-09

Methods and systems for real-time compressor surge line adaptation

#60
20160146099
2016-05-26

Adjustable-trim centrifugal compressor, and turbocharger having same

#61
20160131145
2016-05-12

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

#62
20160123333
2016-05-05

Adjustable-trim centrifugal compressor, and turbocharger having same

#63
20150354591
2015-12-10

Centrifugal compressor

#64
20150275917
2015-10-01

Centrifugal compressor

#65
20150147193
2015-05-28

Load sharing control for compressors in series

#66
20150139776
2015-05-21

Compressor control device, compressor system and compressor control method

#67
20150063989
2015-03-05

COMPRESSOR OF TURBOCHARGER

#68
20140328667
2014-11-06

Variable geometry diffuser having extended travel and control method thereof

#69
20140314543
2014-10-23

Compressor system and method of controlling the same

#70
20140308110
2014-10-16

Adjustable compressor trim

#71
20140093349
2014-04-03

Systems and methods for operating and validating a compressor

#72
20140072452
2014-03-13

Apparatus and method for shielding a controlled pressure environment

#73
20130276892
2013-10-24

PNEUMATIC BUTTERFLY VALVE

#74
20130022449
2013-01-24

Radial-flow turbomachines having performance-enhancing features

#75
20120237338
2012-09-20

Variable throat device for air compressor

#76
20120171059
2012-07-05

Turbocharger with integrated actuator

#77
20120107105
2012-05-03

Turbocompressor assembly with a cooling system

#78
20120018006
2012-01-26

MACHINE FOR FLUID TRANSPORTATION

#79
20110194904
2011-08-11

Controlled Inlet of Compressor for Pneumatic Conveying System

#80
20110076131
2011-03-31

Method for detecting rotating stall in a compressor

#81
20110072828
2011-03-31

Gas turbine engine system providing simulated boundary layer thickness increase

#82
20100329898
2010-12-30

COMPRESSOR INLET GUIDE VANE CONTROL

#83
20100263391
2010-10-21

Control Device for HVAC Systems with Inlet and Outlet Flow Control Devices

#84
20100260595
2010-10-14

Flow regulation mechanism for turbocharger compressor

#85
20090317260
2009-12-24

Compressor-driver power limiting in consideration of antisurge control

#86
20090232641
2009-09-17

Fluid-type absorption dynamometer having an enhanced power range

#87
20090217987
2009-09-03

Methods and apparatus for regulating gas turbine engine fluid flow

#88
20090003997
2009-01-01

Variable shape inlet section for a nacelle assembly of a gas turbine engine

#89
20080253877
2008-10-16

Control system

#90
20080232950
2008-09-25

Method for detecting rotating stall in a compressor

#91
20080112799
2008-05-15

Gas turbine engine providing simulated boundary layer thickness increase

#92
20080056904
2008-03-06

Variable geometry guide vane for a gas turbine engine

#93
20070248453
2007-10-25

Centrifugal compressor performance by optimizing diffuser surge control and flow control device settings

#94
20070079758
2007-04-12

Wide range pressure control using turbo pump

#95
20070044470
2007-03-01

Internal combustion engine including a compressor and method for operating an internal combustion engine

#96
20060117749
2006-06-08

Internal combustion engine having a compressor in the induction system and method for this

#97
20050217732
2005-10-06

Apparatus for controlling the pressure in a process chamber and method of operating same

#98
20050076656
2005-04-14

System and method for stability control in a centrifugal compressor

#99
17401528
2023-01-17

Compressor including inlet guide vanes

#100
14623897
2015-11-10

Compressor intake noise prevention by choking flow with duct geometry