ClassID:

145632

F05D2270/07 - CPC Classification

Classification description:

Control; Purpose of the control system to improve fuel economy

Sub-classes:
Recent Application in this class:
#1
20260085636
2026-03-26

Fuel Systems for Aircraft Engines

#2
20250264062
2025-08-21

COMBUSTION APPARATUS FOR A GAS TURBINE ENGINE

#3
20250052190
2025-02-13

TURBINE ENGINE INCLUDING A STEAM SYSTEM

#4
20240352898
2024-10-24

PROPULSION SYSTEM CONTROL

#5
20240209788
2024-06-27

CONTROL OF FUEL TEMPERATURE

#6
20240175400
2024-05-30

HYBRID-ELECTRIC PROPULSION SYSTEM EQUIPPED WITH A COUPLER FOR SWITCHING BETWEEN MODES OF OPERATION

#7
20240025555
2024-01-25

HYBRID-ELECTRIC PROPULSION SYSTEM EQUIPPED WITH A COUPLER FOR SWITCHING BETWEEN MODES OF OPERATION

#8
20230407785
2023-12-21

FUEL OXYGEN REDUCTION UNIT FOR PRESCRIBED OPERATING CONDITIONS

#9
20230296059
2023-09-21

Control systems and methods suitable for use with power production systems and methods

#10
20230279813
2023-09-07

Fuel management system

#11
20230250765
2023-08-10

Methods and systems for tuning a gas turbine engine

#12
20230193838
2023-06-22

Propulsion system control

#13
20230193834
2023-06-22

METHOD OF CONTROLLING AN AIRCRAFT PROPULSION SYSTEM WITH A VARIABLE INLET GUIDE VANE, AND PROPULSION SYSTEM WITH A VARIABLE INLET GUIDE VANE SCHEDULING MANAGER

#14
20230175443
2023-06-08

Fuel control system

#15
20230036279
2023-02-02

Control systems and methods suitable for use with power production systems and methods

#16
20230019363
2023-01-19

Damper system for an engine shaft

#17
20220316709
2022-10-06

Combustor with improved aerodynamics

#18
20220235716
2022-07-28

Method of controlling aircraft vapour trails and propulsion system providing for control of aircraft vapour trails

#19
20220205393
2022-06-30

METHODS AND APPARATUS TO OPERATE A GAS TURBINE ENGINE WITH HYDROGEN GAS

#20
20220195947
2022-06-23

Two-shaft gas turbine control system and method

#21
20220178543
2022-06-09

Combustor with improved aerodynamics

#22
20220178542
2022-06-09

Combustor with improved aerodynamics

#23
20210340938
2021-11-04

FUEL OXYGEN REDUCTION UNIT

#24
20210340936
2021-11-04

FUEL OXYGEN CONVERSION UNIT WITH MAKEUP GAS FROM ACCESSORY GEARBOX

#25
20210340907
2021-11-04

Fuel oxygen reduction unit for prescribed operating conditions

#26
20210317789
2021-10-14

Apparatuses, systems, and methods for optimizing acoustic wave confinement to increase combustion efficiency

#27
20210189975
2021-06-24

Control systems and methods suitable for use with power production systems and methods

#28
20210139159
2021-05-13

Simultaneously pumping and measuring density of aircraft fuel

#29
20210033031
2021-02-04

Reducing low flight mach number fuel consumption

#30
20210025333
2021-01-28

FUEL DELIVERY SYSTEM AND METHOD

#31
20210025332
2021-01-28

FUEL DELIVERY SYSTEM AND METHOD

#32
20200400080
2020-12-24

GAS TURBINE ENGINE WITH HIGHLY EFFICIENT FAN

#33
20200309040
2020-10-01

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

#34
20200248630
2020-08-06

Method and system of connecting a turbine engine gearbox to engine core

#35
20200158019
2020-05-21

Gas turbine and the method of controlling bleed air volume for gas turbine

#36
20200123923
2020-04-23

Compressor case clearance control logic

#37
20200102895
2020-04-02

Control systems and methods suitable for use with power production systems and methods

#38
20200088108
2020-03-19

Gas turbine engine with variable pitch fan and variable pitch compressor geometry

#39
20190345837
2019-11-14

Hybrid electric aircraft propulsion system

#40
20190292932
2019-09-26

Systems and methods for active clearance control based on selected operating mode

#41
20190203613
2019-07-04

Gas turbine engine fluid cooling systems and methods of assembling the same

#42
20190063334
2019-02-28

Engine control system

#43
20190003374
2019-01-03

Supercharged internal combustion engine

#44
20180347455
2018-12-06

Turbocharger, engine system, and control method for turbocharger

#45
20180284707
2018-10-04

Gas turbine dispatch optimizer real-time command and operations

#46
20180273037
2018-09-27

Internal combustion engine control device

#47
20180142570
2018-05-24

PURGING LIQUID FUEL NOZZLES AND SUPPLY TUBING WITH THE ASSISTANCE OF A FLOW DIVIDER

#48
20180135536
2018-05-17

Control systems for controlling power systems based on fuel consumption and related program products

#49
20180135535
2018-05-17

Dynamic flight command cross-feed for rotor speed droop reduction

#50
20180080390
2018-03-22

Smart liquid fuel system with ability to self-diagnostics

#51
20170370286
2017-12-28

Systems and Methods for Variable Water Injection Flow Control

#52
20170276092
2017-09-28

Control device of a variable section nozzle and the implementation method thereof

#53
20170268423
2017-09-21

Engine bleed system with motorized compressor

#54
20170234224
2017-08-17

Method and system for modulated turbine cooling as a function of engine health

#55
20170211468
2017-07-27

Operation scheduling for optimal performance of hybrid power plants

#56
20170184033
2017-06-29

Method for the operation of a gas turbine by active hydraulic gap adjustment

#57
20170159490
2017-06-08

Gas turbine engine fluid cooling systems and methods of assembling the same

#58
20170082124
2017-03-23

Directed Energy Deposition to Facilitate High Speed Applications

#59
20160356280
2016-12-08

Engine speed optimization as a method to reduce APU fuel consumption

#60
20160348690
2016-12-01

OPERATION OF A GAS TURBINE SYSTEM IN PART LOAD OPERATION

#61
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

#62
20160265444
2016-09-15

Return flow powered turbine

#63
20160169026
2016-06-16

Tip clearance control for turbine blades

#64
20160138483
2016-05-19

Power output and fuel flow based probabilistic control in part load gas turbine tuning, related control systems, computer program products and methods

#65
20160134291
2016-05-12

Control systems and methods suitable for use with power production systems and methods

#66
20160053722
2016-02-25

Optimal feedback heat energy internal combustion engine and applications

#67
20160010567
2016-01-14

Fuel-air ratio control of gas turbine engines

#68
20150315980
2015-11-05

Gas turbine engine fuel system

#69
20150274306
2015-10-01

Hybrid drive for gas turbine engine

#70
20150211422
2015-07-30

System and method for controlling a single-spool turboshaft engine

#71
20150203209
2015-07-23

Gas turbine engine configuration interface

#72
20150192075
2015-07-09

Engine fuel control system

#73
20150159500
2015-06-11

System and method for turbine blade clearance control

#74
20150142216
2015-05-21

Gas turbine engine turbine blade tip active clearance control system and method

#75
20150134151
2015-05-14

Engine fuel delivery system

#76
20150014994
2015-01-15

Vehicle recuperator

#77
20140177670
2014-06-26

Method of estimating the temperature of the fuel leaving a turbomachine exchanger

#78
20140039775
2014-02-06

System and method for controlling a single-spool turboshaft engine

#79
20130239576
2013-09-19

Aerospace engine with augmenting turbojet

#80
20130192266
2013-08-01

GEARED TURBOFAN GAS TURBINE ENGINE ARCHITECTURE

#81
20130186102
2013-07-25

Gas turbine engine in-board cooled cooling air system

#82
20130017098
2013-01-17

Method for optimizing the energy of pumps

#83
20120234413
2012-09-20

SYSTEM AND METHOD FOR CONTROLLING A FUEL SUPPLY ASSOCIATED WITH A TURBOMACHINE

#84
20120102958
2012-05-03

Late lean injection manifold

#85
20120073301
2012-03-29

Critical flow nozzle for controlling fuel distribution and burner stability

#86
20120036861
2012-02-16

Method for compensating for combustion efficiency in fuel control system

#87
20120010800
2012-01-12

Aircraft engine management for fuel conservation method

#88
20110208400
2011-08-25

System and method for controlling a single-spool turboshaft engine

#89
20110202251
2011-08-18

Apparatus and method for reducing aircraft fuel consumption

#90
20100274461
2010-10-28

Aircraft engine management for fuel conservation method and apparatus

#91
20100107591
2010-05-06

Turbomachine flameout confirmation

#92
20100014960
2010-01-21

Gas-turbine engine with variable stator vanes

#93
20090319150
2009-12-24

Method, system, and apparatus for reducing a turbine clearance

#94
20090173056
2009-07-09

Apparatus for operating gas turbine engines

#95
20080154475
2008-06-26

Aircraft engine management for fuel conservation

#96
20070245707
2007-10-25

Fuel control system

#97
20050217274
2005-10-06

Control system for gas-turbine engine

#98
20050217273
2005-10-06

Control system for gas-turbine engine

#99
20050210863
2005-09-29

Methods and apparatus for operating gas turbine engines

#100
20050096832
2005-05-05

Apparatus and method for determining date of gas turbine washing

#101
18311660
2024-10-08

Fuel systems for aircraft engines

#102
18084768
2024-05-07

Pumps with backup capability

#103
17853291
2023-02-21

Fuel characteristics

#104
17662193
2023-07-04

Transmission and method for control of boost spool

#105
17112615
2022-04-19

Methods and apparatus to operate a gas turbine engine with hydrogen gas

#106
16927754
2024-03-26

Active fuel thermal conditioning for aircraft

#107
15459823
2020-08-25

Active fuel thermal conditioning for aircraft