ClassID:

145617

F05D2270/02 - CPC Classification

Classification description:

Control; Purpose of the control system to control rotational speed (n)

Sub-classes:
Recent Application in this class:
#1
20260117670
2026-04-30

PREVENTING ASYNCHRONOUS ROTATION IN AIRCRAFT COMPONENTS WITH RETROREFLECTORS

#2
20260071580
2026-03-12

TURBINE ENGINE CONTROL SYSTEM

#3
20260043378
2026-02-12

Gas Turbine Engine with Third Stream

#4
20260043377
2026-02-12

Gas Turbine Engine with Third Stream

#5
20260043376
2026-02-12

Gas Turbine Engine with Third Stream

#6
20260036062
2026-02-05

Control Device, Moving Object, and Control Method

#7
20250341220
2025-11-06

CEILING FAN WITH ADJUSTABLE BLADES

#8
20250195924
2025-06-19

ATMOSPHERIC PRESSURE COMPENSATION CONTROL SYSTEM FOR POWERED AIR-PURIFYING RESPIRATOR AND METHOD

#9
20240344465
2024-10-17

Variable Geometry Turbine

#10
20240328326
2024-10-03

System and method for an in-conduit hydroturbine

#11
20240301820
2024-09-12

MICRO GAS TURBINE DESIGNED TO LIMIT HEAT LOSSES THEREFROM

#12
20240280060
2024-08-22

CONTROL SYSTEM FOR A TURBOGENERATOR AND METHOD

#13
20240229800
2024-07-11

Dual Body Variable Duty Performance Optimizing Pump Unit

#14
20240218837
2024-07-04

Direct drive electrically-geared turbofan

#15
20240133282
2024-04-25

SYSTEMS AND METHODS TO OPERATE A DUAL-SHAFT GAS TURBINE ENGINE FOR HYDRAULIC FRACTURING

#16
20240102388
2024-03-28

Valve position control

#17
20240026891
2024-01-25

Fan assembly

#18
20240003261
2024-01-04

METHOD FOR STOPPING A GAS TURBINE ENGINE OF A TURBOGENERATOR FOR AIRCRAFT

#19
20230383695
2023-11-30

AIRCRAFT PROPULSION SYSTEM WITH VARIABLE SPEED ROTATING STRUCTURE

#20
20230383671
2023-11-30

Safety control method and system for generator of gas turbine power plant

#21
20230358126
2023-11-09

Turbine fracturing system, controlling method thereof, controlling apparatus and storage medium

#22
20230324002
2023-10-12

Motor driven pump for variable speed power generation cooling

#23
20230323817
2023-10-12

Multi-speed transmission to control variable APU speed and constant generator output frequency

#24
20230313802
2023-10-05

Dual body variable duty performance optimizing pump unit

#25
20230265751
2023-08-24

Systems and methods to operate a dual-shaft gas turbine engine for hydraulic fracturing

#26
20230250812
2023-08-10

RECIPROCATING COMPRESSOR

#27
20230203994
2023-06-29

System and method for operating a multi-engine aircraft

#28
20230175436
2023-06-08

System and method of operating multi-engine system

#29
20230129611
2023-04-27

APPARATUS AND METHOD FOR MAINTAINING GAS PRESSURE IN AN ELECTROLYZER USING AN ELECTRIC GENERATOR CONFIGURED TO CAPTURE KINETIC ENERGY OF ELECTROLYSIS PRODUCTS

#30
20230125958
2023-04-27

Fan assembly

#31
20230121289
2023-04-20

Systems and methods to operate a dual-shaft gas turbine engine for hydraulic fracturing

#32
20230080365
2023-03-16

System and method for operating a multi-engine aircraft

#33
20230045047
2023-02-09

SYSTEM AND METHOD FOR SYNCHROPHASING AIRCRAFT ENGINES

#34
20230008605
2023-01-12

GAS TURBINE ENGINE AND OPERATING METHOD

#35
20220412271
2022-12-29

Methods and apparatus to detect air flow separation of an engine

#36
20220389799
2022-12-08

Turbine fracturing system, controlling method thereof, controlling apparatus and storage medium

#37
20220356870
2022-11-10

DYNAMIC WIND TURBINE ROTATIONAL SPEED CONTROL

#38
20220333535
2022-10-20

Engine and propeller control system

#39
20220333499
2022-10-20

Closed loop control employing magnetostrictive sensing

#40
20220276279
2022-09-01

Blade angle position feedback system with embedded markers

#41
20220243667
2022-08-04

Aircraft propulsion system with inter-turbine burner

#42
20220243664
2022-08-04

Direct drive electrically-geared turbofan

#43
20220243608
2022-08-04

System and method for detecting failure of a propeller feedback device

#44
20220195946
2022-06-23

Inlet configuration enabling rapid in-flight engine restart

#45
20220195942
2022-06-23

Air turbine starter torque control system

#46
20220186670
2022-06-16

Method and system for reducing cross-shaft vibrations

#47
20220186597
2022-06-16

Systems and methods to operate a dual-shaft gas turbine engine for hydraulic fracturing

#48
20220154602
2022-05-19

VALVE POSITION CONTROL

#49
20220106915
2022-04-07

METHOD AND SYSTEM FOR OPERATING A GAS TURBINE ENGINE TO AVOID RESTRICTED ENGINE SPEEDS

#50
20220099034
2022-03-31

Temperature based gas turbine control and method

#51
20220098997
2022-03-31

Method for controlling the bending deformation of a turbomachine shaft at rest subjected to the residual heat of operation of the turbomachine

#52
20220090543
2022-03-24

System and method for controlling a speed of rotation of an aircraft turbine engine with fault management

#53
20220074355
2022-03-10

Engine core speed reducing method and system

#54
20220025823
2022-01-27

Hybrid electric fan with stall free low pressure compressor

#55
20220025778
2022-01-27

Turbine clutch control process

#56
20220003169
2022-01-06

Electric power generation controller for use in aircraft

#57
20210396123
2021-12-23

Systems and methods to operate a dual-shaft gas turbine engine for hydraulic fracturing

#58
20210396122
2021-12-23

Systems and methods to operate a dual-shaft gas turbine engine for hydraulic fracturing

#59
20210372478
2021-12-02

System and method for controlling a journal bearing

#60
20210355842
2021-11-18

Method for controlling and limiting a speed of a turbocharger

#61
20210348567
2021-11-11

Adaptive boosting algorithm-based turbofan engine direct data-driven control method

#62
20210332763
2021-10-28

Methods and apparatus to detect air flow separation of an engine

#63
20210301677
2021-09-30

System and method for dynamic engine motoring

#64
20210246840
2021-08-12

Systems and methods for engine calibration

#65
20210215061
2021-07-15

Adaptive voltage threshold for turbine engine

#66
20210190083
2021-06-24

Flow generator

#67
20210164482
2021-06-03

Fan control system and method thereof

#68
20210108573
2021-04-15

GAS TURBINE ENGINE BOOSTER CONFIGURATION AND METHODS OF OPERATION

#69
20210102501
2021-04-08

Control system and method for a turbopropeller engine based on inlet temperature sensing

#70
20210071589
2021-03-11

Pitch control assembly for an aircraft-bladed rotor

#71
20210071539
2021-03-11

Pitch control assembly for an aircraft-bladed rotor

#72
20210070434
2021-03-11

Feedback device with variable magnetic permeability

#73
20210070424
2021-03-11

Blade angle position feedback system with embedded markers

#74
20210062726
2021-03-04

System and method for synchrophasing aircraft engines

#75
20210057917
2021-02-25

Breaker auto-synchronizer

#76
20210054790
2021-02-25

Turbine speed detection and use

#77
20210054789
2021-02-25

Turbine control system

#78
20210054765
2021-02-25

Valve position control

#79
20210054741
2021-02-25

Turbine diagnostics

#80
20210025338
2021-01-28

SYSTEM AND METHOD FOR OPERATING A TURBOPROP ENGINE

#81
20210025336
2021-01-28

Compressor control

#82
20210017913
2021-01-21

Method for controlling a clearance control valve during a step-climb in cruise phase

#83
20210010430
2021-01-14

Feedforward control of a fuel supply circuit of a turbomachine

#84
20200392906
2020-12-17

Deceleration of a gas turbine

#85
20200378391
2020-12-03

Parameter constancy

#86
20200362869
2020-11-19

Smart ceiling fan, and its method of operation

#87
20200340398
2020-10-29

Micro Gas Turbine Designed To Limit Heat Losses Therefrom

#88
20200309040
2020-10-01

Operation control device and operation control method for single shaft gas turbine and program therefor

#89
20200271061
2020-08-27

Hybrid gas turbine engine control system

#90
20200262542
2020-08-20

System and method for aircraft propeller governing

#91
20200256346
2020-08-13

METHOD FOR CONTROLLING ROTATIONAL SPEED OF MOTOR OF FAN

#92
20200247552
2020-08-06

SYSTEM AND METHOD FOR CONTROLLING PROPELLER-DRIVEN AIRCRAFT

#93
20200239156
2020-07-30

Aircraft auxiliary power unit (APU) control system having speed compensation

#94
20200239155
2020-07-30

Aircraft auxiliary power unit (APU) control system having speed compensation

#95
20200217251
2020-07-09

AIRFLOW CONTROL FOR AIR TURBINE STARTER

#96
20200182160
2020-06-11

Device for automatically regulating aircraft power plant gas generator and free turbine speeds as a function of heating, electricity generation, noise emission, and fuel consumption

#97
20200173367
2020-06-04

Methods and apparatus for controlling at least part of a start-up or re-light process of a gas turbine engine

#98
20200165984
2020-05-28

Integrated propeller and engine controller

#99
20200165983
2020-05-28

Engine and propeller control system

#100
20200141314
2020-05-07

GAS TURBINE ENGINE

#101
20200063741
2020-02-27

Dual body variable duty performance optimizing pump unit

#102
20200003123
2020-01-02

System for supplying fuel to a turbomachine

#103
20190390599
2019-12-26

Compressed air energy storage and power generation method and compressed air energy storage and power generation device

#104
20190361043
2019-11-28

Turbo rotation sensor

#105
20190353104
2019-11-21

Hybrid electric fan with improved low pressure compressor

#106
20190309689
2019-10-10

Systems and methods for power turbine governing

#107
20190292993
2019-09-26

Electric propulsion motor cooling system and method

#108
20190234232
2019-08-01

Method for managing a breakdown of a turbine engine starter valve

#109
20190226405
2019-07-25

Airflow control for air turbine starter

#110
20190219021
2019-07-18

GAS TURBINE ENGINE MOTORING SYSTEM FOR BOWED ROTOR ENGINE STARTS

#111
20190186368
2019-06-20

Method of starting a gas turbine engine

#112
20190153891
2019-05-23

THREE SPOOL TURBOFAN ENGINE WITH LOW NOISE INTERMEDIATE TURBINE ROTOR

#113
20190145323
2019-05-16

Engine core speed reducing method and system

#114
20190032577
2019-01-31

Method of controlling gas generator power and torque output

#115
20190031359
2019-01-31

System for controlling a controlled parameter

#116
20190017409
2019-01-17

Performance and life optimizing control system for a turbine engine

#117
20180355804
2018-12-13

Cool core gas turbine engine

#118
20180313233
2018-11-01

Waste heat recovery system

#119
20180306109
2018-10-25

Integrated power generation and compression train, and method

#120
20180236345
2018-08-23

Graspable human propulsion device

#121
20180230853
2018-08-16

METHOD FOR LIMITING THE CORE ENGINE SPEED OF A GAS TURBINE ENGINE DURING ICING CONDITIONS

#122
20180223738
2018-08-09

Starter air valve system with dual electromechanical controls

#123
20180202370
2018-07-19

Turbocharger assembly with oil carry-over protection

#124
20180178908
2018-06-28

Device for regulating the speed of rotation of a gas generator shaft of a rotorcraft turboshaft engine, a rotorcraft provided with such a device, and an associated method of regulation

#125
20180167008
2018-06-14

Method for determining a droop response profile of a electrical machine connected to an electrical grid

#126
20180156121
2018-06-07

Gas Turbine Engine With Intercooled Cooling Air and Controlled Boost Compressor

#127
20180149092
2018-05-31

CONTROL TECHNOLOGIES FOR TURBINE ENGINE WITH INTEGRATED INLET PARTICLE SEPARATOR AND INFRARED SUPPRESSION SYSTEM

#128
20180142623
2018-05-24

AIRCRAFT INCORPORATING A MAIN ENGINE STARTING SYSTEM

#129
20180135529
2018-05-17

Combined overspeed and fuel stream selector systems

#130
20180045123
2018-02-15

Turbopropeller control system with control saturation management

#131
20180023484
2018-01-25

Speed control during motoring of a gas turbine engine

#132
20170370295
2017-12-28

Jet engine

#133
20170363013
2017-12-21

Gas turbine power generation system, control method for gas turbine power generation system, and control device for gas turbine power generation system

#134
20170350459
2017-12-07

Clutch mechanism and method for controlling fan speed

#135
20170350404
2017-12-07

MOTOR CONTROLLER AND MOTOR CONTROL METHOD

#136
20170342908
2017-11-30

Turbine engine and method of operating

#137
20170298816
2017-10-19

GAS TURBINE ENGINE

#138
20170234236
2017-08-17

Bowed rotor start using a variable position starter valve

#139
20170234158
2017-08-17

Bowed rotor start response damping system

#140
20170138215
2017-05-18

STEAM TURBINE, CONTROL METHOD, AND PROGRAM

#141
20170044994
2017-02-16

Fuel control method for gas turbine, control device for executing said method, and gas turbine installation provided with said control device

#142
20170022907
2017-01-26

Shaft failure detection using passive control methods

#143
20170009662
2017-01-12

Device for automatically regulating aircraft power plant gas generator and free turbine speeds as a function of heating, electricity generation, noise emission, and fuel consumption

#144
20160348533
2016-12-01

ROTOR RESONANCE DISTURBANCE REJECTION CONTROLLER

#145
20160341066
2016-11-24

Gas turbine engine uncontrolled high thrust accommodation system and method

#146
20160311548
2016-10-27

Method for automatically controlling the operating speed of a helicopter turboshaft engine, corresponding control device and helicopter provided with such a device

#147
20160229547
2016-08-11

Method and apparatus for controlling a turboprop engine

#148
20160195096
2016-07-07

Three spool geared turbofan with low pressure compressor drive gear system and mechanical controller

#149
20160177771
2016-06-23

Laser measurement system for detecting turbine blade lockup

#150
20160160761
2016-06-09

Gas Turbine Engine With Single Turbine Driving Two Compressors

#151
20160153310
2016-06-02

Three spool turbofan engine with low noise intermediate turbine rotor

#152
20160146116
2016-05-26

Method for optimizing the control of a free turbine power package for an aircraft, and control for implementing same

#153
20160069277
2016-03-10

Turboshaft engine control

#154
20160024961
2016-01-28

Turbine of a turbocompound engine with variable load and a controller thereof

#155
20160010567
2016-01-14

Fuel-air ratio control of gas turbine engines

#156
20150377148
2015-12-31

Method and system for combustion control for gas turbine system with exhaust gas recirculation

#157
20150268676
2015-09-24

System and method for controlling turbine speed using torque converter

#158
20150251770
2015-09-10

System and method for operating a multi-engine aircraft in an auxiliary power unit mode

#159
20150244296
2015-08-27

Electrical power generator for a gas turbine engine

#160
20150159499
2015-06-11

Control of a gas turbine engine

#161
20150064023
2015-03-05

Motor controller and motor control method

#162
20150044022
2015-02-12

Method and device for controlling a hot restart of a centrifugal compressor

#163
20140283527
2014-09-25

Multi-engine performance margin synchronization adaptive control system and method

#164
20140260293
2014-09-18

Systems and methods of droop response control of turbines

#165
20140230449
2014-08-21

Valve control device, gas turbine, and valve control method

#166
20140123663
2014-05-08

Rotor resonance disturbance rejection controller

#167
20140020396
2014-01-23

Method of automatically regulating aircraft power plant gas generator and free turbine speeds as a function of heating, electricity generation, noise emission, and fuel consumption

#168
20130243574
2013-09-19

Operation control apparatus and operation control method for steam turbine

#169
20130192266
2013-08-01

GEARED TURBOFAN GAS TURBINE ENGINE ARCHITECTURE

#170
20130118146
2013-05-16

Twin-shaft gas turbine for multiple frequency power generation

#171
20130038072
2013-02-14

System and method for hot ambient and grid frequency compensation for a gas turbine

#172
20130019585
2013-01-24

VARIABLE FAN INLET GUIDE VANE FOR TURBINE ENGINE

#173
20130017098
2013-01-17

Method for optimizing the energy of pumps

#174
20120326443
2012-12-27

VARIABLE SPEED POWER GENERATION FROM INDUSTRIAL FLUID ENERGY SOURCES

#175
20120161674
2012-06-28

DC MOTOR SPEED CONTROLLER OF A RANGE HOOD

#176
20120116613
2012-05-10

Method of controlling an overspeed safety system for aeroengines and a control circuit for implementing said method

#177
20120063883
2012-03-15

Methods and devices for low speed low torque testing of a rotor in a turbomachinery

#178
20120027623
2012-02-02

Method and device for controlling a hot restart of a centrifugal compressor

#179
20110236180
2011-09-29

Gas driven rotation motor, a tool provided with a gas driven rotation motor and a method for regulating speed of a gas driven rotation motor

#180
20110116908
2011-05-19

GAS TURBINE ENGINE WITH AN ARRANGEMENT FOR MEASURING THE SHAFT ROTATION SPEED

#181
20100313855
2010-12-16

Method and device for providing a rotational speed and temperature indication of a supercharging device for an internal combustion engine

#182
20100213709
2010-08-26

Generator-stream turbine-turbocompressor string regulated by variation of a mains power supplied and by a live steam feed and method for operating the same

#183
20100175375
2010-07-15

Waste gate actuator for an exhaust gas turbocharger

#184
20100172757
2010-07-08

INDIRECT DRIVE UNIT APPARATUS, SYSTEM AND METHOD

#185
20090099750
2009-04-16

Maneuver based aircraft gas turbine engine speed control

#186
20090069998
2009-03-12

Event-driven starter controller

#187
20080190094
2008-08-14

Combination power plant and method for the cooling thereof

#188
20070245708
2007-10-25

High cycle fatigue management for gas turbine engines

#189
20070186551
2007-08-16

Exhaust-gas turbocharger

#190
20070144174
2007-06-28

Method for determining the rotary speed of a compressor, especially a turbocharger

#191
20070125090
2007-06-07

Determination of a signal indicative of shaft power

#192
20060220387
2006-10-05

Gas turbine engine generator system

#193
20060082365
2006-04-20

Toothed shell on a variable reluctance speed sensor

#194
18459668
2024-10-29

Shifted bleed valve modulation detection

#195
18136132
2024-08-06

Rotor blade inspection system

#196
17716111
2023-07-11

Constant speed drive to control variable APU speed and constant generator output frequency

#197
15643359
2020-01-14

Slow turning gear adapter to eliminate turbine bucket wear