ClassID:

144134

F04D27/002 - CPC Classification

Classification description:

Control, e.g. regulation, of pumps, pumping installations or systems by varying geometry within the pumps, e.g. by adjusting vanes

Recent Application in this class:
#1
20260126048
2026-05-07

GAS TURBINE ENGINE HAVING A SENSOR ASSEMBLY FOR MONITORING PROPELLER WHIRL

#2
20260117784
2026-04-30

LOW PITCH PROTECTION CONTROL SYSTEM

#3
20260036084
2026-02-05

SENSOR ASSEMBLY TO DETECT PROPELLER WHIRL IN A TURBINE ENGINE

#4
20250376990
2025-12-11

GAS TURBINE ENGINE WITH SPLIT VARIABLE FAN EXIT GUIDE VANES AND AIRFLOW RADIAL TOTAL PRESSURE PROFILE RE-DISTRIBUTION

#5
20250341326
2025-11-06

DYNAMICALLY TEMPERATURE AND SHAPE CHANGING FAN WITH NATIVE AIR PURIFICATION AND ROOM STERILIZATION

#6
20250321034
2025-10-16

SYSTEM AND METHOD FOR OPERATION OF VARIABLE GEOMETRY DIFFUSER AS CHECK VALVE

#7
20250215881
2025-07-03

FAN ASSEMBLY

#8
20250215825
2025-07-03

SENSOR ASSEMBLY TO DETECT PROPELLER WHIRL IN A TURBINE ENGINE

#9
20250043795
2025-02-06

GAS TURBINE ENGINE HAVING A SENSOR ASSEMBLY FOR MONITORING PROPELLER WHIRL

#10
20250003424
2025-01-02

APPARATUS FOR REDUCING AIR TURBULENCE IN A FAN CHASSIS

#11
20240124126
2024-04-18

System and method for controlling the modification of the pitch of the blades of a turbine engine

#12
20240038104
2024-02-01

Visual display system

#13
20230400034
2023-12-14

Compressor control device, control method for compressor, and control program product for compressor

#14
20230340960
2023-10-26

BLOWER

#15
20230313808
2023-10-05

Variable geometry turbine and method for calibrating a variable geometry turbine

#16
20230313699
2023-10-05

Adjustable inlet guide vane angle monitoring device

#17
20230204046
2023-06-29

Rotary device for inputting thermal energy into fluids

#18
20230147950
2023-05-11

SYSTEM AND METHOD FOR OPERATION OF VARIABLE GEOMETRY DIFFUSER AS CHECK VALVE

#19
20230147771
2023-05-11

Blowers with variable nozzles

#20
20230030793
2023-02-02

Hub driven variable height fan

#21
20220235779
2022-07-28

VARIABLE INLET CONDUCTANCE VACUUM PUMP, VACUUM PUMP ARRANGEMENT AND METHOD

#22
20220217908
2022-07-14

Automated adjustable angle of incidence fan for cleaning sugarcane

#23
20220120290
2022-04-21

Noise reduction method of a ventilator

#24
20220099107
2022-03-31

Centrifugal compressor

#25
20220082107
2022-03-17

Methods and system for control of compressors with both variable speed and guide vanes position

#26
20210404477
2021-12-30

AIRFLOW-GENERATING DEVICE WITH ABILITY TO ADJUST AIR CHAMBER AND METHOD APPLIED THERETO

#27
20210270182
2021-09-02

Variable geometry turbocharger

#28
20210267091
2021-08-26

Air flow control in data storage systems

#29
20210164494
2021-06-03

Variable diffuser drive system

#30
20210131441
2021-05-06

Apparatus and method for diagnosing and controlling aerodynamic stability of compressor

#31
20210102545
2021-04-08

Method for controlling an electrically supported exhaust gas turbocharger

#32
20210095681
2021-04-01

CONTROL OF A FAN ASSEMBLY

#33
20210033097
2021-02-04

Method for optimizing the efficiency and/or the running performance of a fan or a fan arrangement

#34
20200400153
2020-12-24

Thermal module

#35
20200378270
2020-12-03

Proximity vane angle measurement

#36
20200355199
2020-11-12

Fan module

#37
20200332699
2020-10-22

Radiator fan

#38
20200318651
2020-10-08

Fan performance tuning

#39
20200318644
2020-10-08

Rotodynamic pump and method

#40
20200240423
2020-07-30

Turbocharger with control device

#41
20200232383
2020-07-23

Variable geometry turbocharger

#42
20200182253
2020-06-11

Fan

#43
20200166044
2020-05-28

Hydrodynamic heater pump

#44
20200095933
2020-03-26

Signal processing for variable geometry mechanism control

#45
20200080567
2020-03-12

ALTERNATOR COOLING FAN WITH ADJUSTABLE PITCH

#46
20200072499
2020-03-05

Heating blower and heating device

#47
20200072074
2020-03-05

Variable vane actuating system

#48
20200049163
2020-02-13

Variable vane devices containing rotationally-driven translating vane structures and methods for the production thereof

#49
20200025208
2020-01-23

VARIABLE PITCH FAN ASSEMBLY WITH BLADE PITCH INDICATION

#50
20200025207
2020-01-23

Powered pre-cooler fan assembly

#51
20200025108
2020-01-23

Supersonic aircraft turbofan

#52
20200011335
2020-01-09

Variable inlet conductance vacuum pump, vacuum pump arrangement and method

#53
20200003455
2020-01-02

Variable stage compressors

#54
20200003228
2020-01-02

Harmonic drive for shaft driving multiple stages of vanes via gears

#55
20190390681
2019-12-26

FAN WITH SHUT-OFF VALVE AND METHOD OF OPERATING

#56
20190376711
2019-12-12

Air cleaner

#57
20190360499
2019-11-28

Apparatus and related method to vary fan performance by way of modular interchangeable parts

#58
20190330993
2019-10-31

Gas turbine engine vane end devices

#59
20190309763
2019-10-10

Control method of a compressor mechanically coupled to a turbine

#60
20190264700
2019-08-29

DEVICES, SYSTEMS, AND METHODS FOR CONTROLLING A CEILING FAN

#61
20190249686
2019-08-15

Fan

#62
20190249685
2019-08-15

Heat dissipation device

#63
20190226491
2019-07-25

Blower device and blower system equipped with blower device

#64
20190219058
2019-07-18

Scalable fan frame mechanism

#65
20190178255
2019-06-13

VAPOR CYCLE COMPRESSOR WITH VARIABLE INLET/OUTLET GEOMETRY

#66
20190170149
2019-06-06

Active casing treatment adapted with movable sleeve

#67
20190170148
2019-06-06

Active casing treatment adapted with movable sleeve

#68
20190145418
2019-05-16

Turbomolecular vacuum pump for ionized matter and plasma fields

#69
20190134548
2019-05-09

BLOWING UNIT FOR AIR CLEANER AND AIR CLEANER INCLUDING THE SAME

#70
20190120241
2019-04-25

Assembly blower and associated method

#71
20190110377
2019-04-11

ALTITUDE CORRECTION METHOD AND SYSTEM FOR REGULATING AND CONTROLLING SERVER FAN

#72
20190101128
2019-04-04

Wing or blade design for wingtip device, rotor, propeller, turbine, and compressor blades with energy regeneration

#73
20190078587
2019-03-14

Systems and method for a variable inlet device of a compressor

#74
20190040867
2019-02-07

HYDRAULIC ROTARY DRIVE

#75
20180340549
2018-11-29

Variable diffuser with axially translating end wall for a centrifugal compressor

#76
20180335050
2018-11-22

Method and system for compressor vane leading edge auxiliary vanes

#77
20180335041
2018-11-22

Method and device for controlling rotation angle of swinging head of fan, and fan

#78
20180328287
2018-11-15

Method of control of three spool gas turbine engine

#79
20180258956
2018-09-13

Variable displacement flutter damper for a turbofan engine

#80
20180258949
2018-09-13

Variable compressor

#81
20180231004
2018-08-16

Reducing centrifugal pump bearing wear through dynamic magnetic coupling

#82
20180223867
2018-08-09

Actively morphable vane

#83
20180223724
2018-08-09

Forced induction engine with electric motor for compressor

#84
20180216632
2018-08-02

Variable vane devices containing rotationally-driven translating vane structures and methods for the production thereof

#85
20180209432
2018-07-26

Clip fan

#86
20180209431
2018-07-26

Active stall prevention in centrifugal fans

#87
20180209350
2018-07-26

Advanced Geared Gas Turbine Engine

#88
20180195520
2018-07-12

Turbo compressor

#89
20180195519
2018-07-12

Vacuum valve and vacuum pump

#90
20180195518
2018-07-12

Vacuum valve, vacuum pump, and vacuum pumping system

#91
20180170147
2018-06-21

HVAC system inlet assembly

#92
20180163735
2018-06-14

Variable vane apparatus

#93
20180156227
2018-06-07

System and method for turbomachinery rotor and blade prognostics and diagnostics

#94
20180156226
2018-06-07

System and method for turbomachinery vane diagnostics

#95
20180156121
2018-06-07

Gas Turbine Engine With Intercooled Cooling Air and Controlled Boost Compressor

#96
20180156052
2018-06-07

Gas turbine engine vane end devices

#97
20180142692
2018-05-24

Fan with shut-off valve and method of operating

#98
20180135655
2018-05-17

Adjustable fan damping apparatus for exerciser

#99
20180135635
2018-05-17

Airfoil structure having a shape memory alloy actuator

#100
20180128277
2018-05-10

Ceiling fan capable of adjusting angles of fan blades

#101
20180112589
2018-04-26

Boosted engine system of a motor vehicle

#102
20180083326
2018-03-22

Temperature conditioning unit, temperature conditioning system, and vehicle

#103
20180079510
2018-03-22

Control system for a cabin blower system

#104
20180073382
2018-03-15

Turbine tip clearance control method and system

#105
20180065760
2018-03-08

Engine driven air compressor system for a mobile aviation support cart

#106
20180045205
2018-02-15

Inlet guide vane assembly for reducing airflow swirl distortion of an aircraft aft fan

#107
20180044012
2018-02-15

Aircraft with tilting cross-flow fan wings

#108
20180044010
2018-02-15

Aircraft tail with cross-flow fan systems

#109
20180030987
2018-02-01

Method and apparatus for active clearance control on gas turbine engines

#110
20180030986
2018-02-01

Engine with face seal

#111
20180030894
2018-02-01

GAS TURBINE ENGINE COMPRISING AN ADJUSTABLE SPINNER

#112
20180003184
2018-01-04

Two-way flow control device, associated systems and methods

#113
20170370370
2017-12-28

Singular stator vane control

#114
20170363097
2017-12-21

Electronic device and control method thereof

#115
20170363094
2017-12-21

Method and system for metallic low pressure fan case heating

#116
20170343002
2017-11-30

Impeller shroud with deflecting outer member for clearance control in a centrifugal compressor

#117
20170342996
2017-11-30

Impeller shroud with slidable coupling for clearance control in a centrifugal compressor

#118
20170342995
2017-11-30

Segregated impeller shroud for clearance control in a centrifugal compressor

#119
20170342994
2017-11-30

Impeller shroud with thermal actuator for clearance control in a centrifugal compressor

#120
20170342838
2017-11-30

Mixing ram and bleed air in a dual entry turbine system

#121
20170306977
2017-10-26

Compressor Having a Variable Diffuser Width

#122
20170298953
2017-10-19

Adjustable-trim centrifugal compressor for a turbocharger

#123
20170298944
2017-10-19

COMPRESSOR SYSTEM

#124
20170298943
2017-10-19

Adjustable-trim centrifugal compressor for a turbocharger

#125
20170292400
2017-10-12

Method and apparatus for adjusting variable vanes

#126
20170284407
2017-10-05

Automatic Inlet Swirl Device for Turbomachinery

#127
20170276146
2017-09-28

Electric actuation for variable vanes

#128
20170268520
2017-09-21

Controlling a compressor of a gas turbine engine

#129
20170248339
2017-08-31

Air cleaner

#130
20170227013
2017-08-10

Methods and system for a turbocharger

#131
20170191486
2017-07-06

Fluid energy machine having a tandem dry gas seal

#132
20170175750
2017-06-22

METHOD AND SYSTEM FOR VARYING TIP CLEARANCE GAP USING AN ACTUATED SHROUD

#133
20170174049
2017-06-22

DYNAMICALLY CONTROLLED VAPOR COMPRESSION COOLING SYSTEM WITH CENTRIFUGAL COMPRESSOR

#134
20170152856
2017-06-01

Load sharing control for compressors in series

#135
20170152063
2017-06-01

Internal air pressure imbalance (IAPI) engine

#136
20170146017
2017-05-25

Method, compressor and turbomachine

#137
20170138370
2017-05-18

Pitch range for a variable pitch fan

#138
20170122322
2017-05-04

Conical viscosity pump with axially positionable impeller and method of printing a 3D part

#139
20170084967
2017-03-23

Battery pack flow control system with fan assembly

#140
20170082018
2017-03-23

Variable nozzle unit and variable geometry turbocharger

#141
20170045054
2017-02-16

Reducing centrifugal pump bearing wear through dynamic magnetic coupling

#142
20170044997
2017-02-16

Control device and control method

#143
20170009645
2017-01-12

Balanced vanes and integrated actuation system for a variable geometry turbocharger

#144
20170002834
2017-01-05

COOLED COMPRESSOR

#145
20160377087
2016-12-29

Seal carrier, guide vane ring and turbomachine

#146
20160377000
2016-12-29

Method for operating a gas turbine installation and a gas turbine installation for carrying out the method

#147
20160369644
2016-12-22

Gas turbine rapid response clearance control system with annular piston

#148
20160363133
2016-12-15

Device for guiding variable pitch diffuser vanes of a turbine engine

#149
20160356173
2016-12-08

Actuation arrangement

#150
20160356172
2016-12-08

Movable vane control system

#151
20160349701
2016-12-01

Image forming apparatus having cooling mechanism, cooling device, and cross-flow fan

#152
20160327051
2016-11-10

Method of determination and gas turbine

#153
20160319839
2016-11-03

Centrifugal compressor and centrifugal unit having the same

#154
20160319837
2016-11-03

ACTIVE FLUTTER CONTROL OF VARIABLE PITCH BLADES

#155
20160305437
2016-10-20

System and method for operating a compressor

#156
20160298633
2016-10-13

SHORTENED SUPPORT FOR COMPRESSOR VARIABLE VANE

#157
20160258438
2016-09-08

ASSEMBLY, BLOWER AND ASSOCIATED METHOD

#158
20160238012
2016-08-18

ADJUSTABLE-INLET RADIAL-RADIAL COMPRESSOR

#159
20160230701
2016-08-11

Variable area fan nozzle with drive system health monitoring

#160
20160208817
2016-07-21

Blower assembly for a vehicle

#161
20160208809
2016-07-21

Compressor including flow control insert and electromagnetic actuator

#162
20160208808
2016-07-21

Regulator assembly and centrifugal compressor

#163
20160195099
2016-07-07

Cover of a turbomachine centrifugal compressor capable of being rigidly connected via the downstream side near to the upstream edge of same, and turbomachine comprising this cover

#164
20160177956
2016-06-23

Adjustable-trim centrifugal compressor, and turbocharger having same

#165
20160146218
2016-05-26

Fan module

#166
20160146155
2016-05-26

Gas turbine engine and method of assembling the same

#167
20160146015
2016-05-26

Fluidfoil

#168
20160123351
2016-05-05

Boosting system, and boosting method of gas

#169
20160123347
2016-05-05

Linkage to actuate inlet guide vanes

#170
20160123339
2016-05-05

Radial fastening of tubular synchronizing rings

#171
20160108931
2016-04-21

Mounting arrangement for variable stator vane

#172
20160076548
2016-03-17

Variable stator vane assemblies and variable stator vanes thereof having a locally swept leading edge and methods for minimizing endwall leakage therewith

#173
20160032942
2016-02-04

Air conditioner

#174
20160032933
2016-02-04

Rotating oil union with centerline mounted displacement probe, system for measuring displacement of regulation system of variable pitch axial fan and method thereof

#175
20160025102
2016-01-28

A VARIABLE PITCH FAN AND A METHOD FOR VARYING THE BLADE PITCH IN A FAN

#176
20160010652
2016-01-14

Apparatus for preventing axial-flow compressor from stalling by employing casing treatment

#177
20150377242
2015-12-31

Blower and air conditioner using same

#178
20150345376
2015-12-03

VARIABLE GEOMETRY EXHAUST GAS TURBOCHARGER

#179
20150308454
2015-10-29

PUSH-BUTTON AIR PUMP

#180
20150300246
2015-10-22

Exhaust-gas turbocharger

#181
20150275908
2015-10-01

Centrifugal compressor inlet guide vane control

#182
20150240827
2015-08-27

Rotary actuator with integrated actuation

#183
20150219110
2015-08-06

Centrifugal compressor startup control

#184
20150211538
2015-07-30

Variable geometry exhaust turbocharger

#185
20150204439
2015-07-23

Variable vane actuating system

#186
20150204339
2015-07-23

System for holding blades and assembly method

#187
20150167685
2015-06-18

Device for controlling a gas flow, an exhaust aftertreatment system and a system for propelling a vehicle

#188
20150152875
2015-06-04

AIR BLOWER

#189
20150132112
2015-05-14

Exhaust-gas turbocharger

#190
20150132103
2015-05-14

Exhaust-gas turbocharger

#191
20150122233
2015-05-07

Variable geometry system turbocharger and method of manufacturing housing for variable geometry system turbocharger

#192
20150118038
2015-04-30

Vane pack assembly for VTG turbochargers

#193
20150110607
2015-04-23

Variable nozzle unit and variable geometry system turbocharger

#194
20150107289
2015-04-23

HIGH PRESSURE RATIO MULTI-STAGE CENTRIFUGAL COMPRESSOR

#195
20150104296
2015-04-16

Variable geometry turbocharger

#196
20150093236
2015-04-02

Exhaust gas turbocharger having guiding screen rings that are rotatable relative to each other

#197
20150086341
2015-03-26

Exhaust-gas turbocharger

#198
20150086340
2015-03-26

Exhaust-gas turbocharger

#199
20150086266
2015-03-26

Setting regulating rod length by fixedly attaching a regulating rod to an end piece by application of a weld filler applied thereat through a weld window

#200
20150056067
2015-02-26

Variable nozzle unit and variable-geometry turbocharger

#201
20150056059
2015-02-26

Control system

#202
20150023802
2015-01-22

Ceiling fan with variable blade pitch and variable speed control

#203
20150016964
2015-01-15

GAS TURBINE ENGINE AND OPERATIONS

#204
20150010383
2015-01-08

Centrifugal compressor diffuser control

#205
20150004038
2015-01-01

Adjustable core turbocharger

#206
20150003963
2015-01-01

Gas turbine engine vane end devices

#207
20150003956
2015-01-01

Variable vane scheduling

#208
20140363278
2014-12-11

VARIABLE GEOMETRY TURBOCHARGER CONTROL SYSTEM

#209
20140363269
2014-12-11

Compressor control device and control method therefor, and compressor system

#210
20140356138
2014-12-04

Variable-speed multi-stage refrigerant centrifugal compressor with diffusers

#211
20140311183
2014-10-23

SYSTEM AND METHOD FOR PRODUCING A LIQUEFIED HYDROCARBON STREAM AND METHOD OF OPERATING A COMPRESSOR

#212
20140308115
2014-10-16

CONTROLLABLE COOLANT PUMP WITH AN ELECTRO-HYDRAULIC BAFFLE PLATE ADJUSTMENT

#213
20140308110
2014-10-16

Adjustable compressor trim

#214
20140271113
2014-09-18

Modulated cooling flow scheduling for both SFC improvement and stall margin increase

#215
20140216087
2014-08-07

Compressor clearance control

#216
20140205424
2014-07-24

Systems and Methods to Control Variable Stator Vanes in Gas Turbine Engines

#217
20140193242
2014-07-10

Cooling fan with variable blade surface area

#218
20140161595
2014-06-12

Variable displacement turbocharger and assembly method of variable nozzle mechanism

#219
20140161588
2014-06-12

Centrifugal compressor

#220
20140130513
2014-05-15

SYSTEM AND METHOD FOR IMPROVING GAS TURBINE PERFORMANCE AT PART-LOAD OPERATION

#221
20140119909
2014-05-01

Fan module

#222
20140086729
2014-03-27

Method and apparatus for independently varying airflow and noise generation of a fan

#223
20140056697
2014-02-27

Mechanical coolant pump

#224
20140056696
2014-02-27

Pump device and pump system

#225
20140036441
2014-02-06

Dynamic compensation of airflow in electronics enclosures with failed fans

#226
20140010672
2014-01-09

Reducing centrifugal pump bearing wear through dynamic magnetic coupling

#227
20130323100
2013-12-05

Fan assembly

#228
20130315717
2013-11-28

COUPLED OUTLET VANE DEVICE/ANGULAR ADJUSTMENT

#229
20130243584
2013-09-19

Centrifugal fan

#230
20130223996
2013-08-29

Variable geometry turbine

#231
20130183136
2013-07-18

Start system for gas turbine engines

#232
20130164114
2013-06-27

Adjustable core turbocharger

#233
20130089411
2013-04-11

Control shaft seal

#234
20130052046
2013-02-28

CONTROLLABLE COOLANT PUMP WITH AN ACTUATOR THAT CAN BE ACTIVATED HYDRAULICALLY

#235
20120134783
2012-05-31

SYSTEM AND METHOD FOR OPERATING A COMPRESSOR

#236
20120128494
2012-05-24

Variable performance vaneaxial fan with high efficiency

#237
20120111002
2012-05-10

Centrifugal compressor and turbo supercharger

#238
20110303472
2011-12-15

Variable pitch radiator fan control system

#239
20110204628
2011-08-25

Aircraft ventilation device

#240
20110036311
2011-02-17

Cooling fan for internal combustion engine having axially adjustable fan rotor

#241
20100326376
2010-12-30

Method and arrangement for control of cooling and an engine

#242
20100278637
2010-11-04

Ceiling fan with variable blade pitch and variable speed control

#243
20100089549
2010-04-15

Exhaust device

#244
20100084123
2010-04-08

COOLING APPARATUS, ELECTRONIC APPARATUS, AND BLOWER APPARATUS

#245
20090060739
2009-03-05

Fan blade pitch change assembly

#246
20090057043
2009-03-05

Variable pitch radiator fan control system

#247
20080031721
2008-02-07

Fan variable immersion system

#248
20060204358
2006-09-14

Inline vent fan

#249
20050280664
2005-12-22

Electric turbine

#250
20050100444
2005-05-12

Control system for variable pitch fan

#251
20050019162
2005-01-27

Utilizing an altitude sensor to control fan speed

#252
18799361
2025-09-02

Cooling system for a work vehicle

#253
18758112
2025-12-09

Open rotor with fixed guide vane/stator

#254
18734531
2025-05-27

Gas turbine engine with hybrid fan exit guide vanes

#255
18528977
2024-08-06

Variable pitch airfoil assembly for an open fan rotor of an engine having a damping element

#256
18302441
2024-02-27

Variable guide vane assembly and control system thereof

#257
17991290
2024-02-20

Compressor startup

#258
17401528
2023-01-17

Compressor including inlet guide vanes

#259
16186467
2022-07-26

System and method for guiding compressible gas flowing through a duct

#260
16103291
2020-07-14

Dual mode turbofan engine

#261
15804397
2019-01-29

Systems and methods for a bi-valved variable inlet device

#262
15255430
2018-01-30

Inflating unit for use with an inflatable object