ClassID:

136988

F01D25/36 - CPC Classification

Classification description:

Component parts, details, or accessories, not provided for in, or of interest apart from, other groups; Turning or inching gear using electric motors

Recent Application in this class:
#1
20250237173
2025-07-24

MULTI-MODE STARTER CONTROL FOR GAS TURBINE ENGINES

#2
20250237153
2025-07-24

METHOD FOR CONTROLLING A GAS TURBINE ENGINE

#3
20240401538
2024-12-05

ELECTRIC ENHANCED TRANSMISSION FOR MULTI-SPOOL LOAD-SHARING TURBOFAN ENGINE

#4
20240344466
2024-10-17

CORE TURNING SYSTEM

#5
20240271574
2024-08-15

Offset clutch mechanism for electric starting and barring motor of a gas-turbine engine

#6
20240093645
2024-03-21

Rotor bow mitigation

#7
20230160358
2023-05-25

HYBRID GAS TURBINE ENGINE STARTING CONTROL

#8
20220355939
2022-11-10

Cabin blower system

#9
20220205394
2022-06-30

Electric enhanced transmission for multi-spool load-sharing turbofan engine

#10
20220195886
2022-06-23

SYSTEM AND METHOD FOR MITIGATING BOWED ROTOR IN A GAS TURBINE ENGINE

#11
20220154595
2022-05-19

Digital shaft positioning for a turbine rotor

#12
20210310409
2021-10-07

State determining device, operation controlling device, gas turbine, and state determining method

#13
20210108568
2021-04-15

Gas turbine engine turning system

#14
20210062721
2021-03-04

Method for starting a turbine engine in cold weather and system for starting a turbine engine

#15
20210025339
2021-01-28

Hybrid gas turbine engine starting control

#16
20200271018
2020-08-27

SYSTEM AND METHOD FOR MANAGING POWER TO AN ENGINE CONTROLLER

#17
20200240331
2020-07-30

Electric enhanced transmission for multi-spool load-sharing turbofan engine

#18
20200217226
2020-07-09

Drive assembly for a gas turbine engine

#19
20200191019
2020-06-18

Turbomachine rotor rotating system and turbomachine rotor

#20
20200141452
2020-05-07

Mechanical shear fuse for engine motoring system

#21
20200095939
2020-03-26

Gas turbine engine system cooldown

#22
20190323434
2019-10-24

Method for manufacturing a motoring system for a gas turbine engine

#23
20190292993
2019-09-26

Electric propulsion motor cooling system and method

#24
20190264692
2019-08-29

Control device and control method for rotary machine, and rotary machine unit equipped with control device

#25
20190186359
2019-06-20

Rotor bow management

#26
20190186289
2019-06-20

Structure and method to mitigate rotor bow in turbine engine

#27
20190178108
2019-06-13

Turbine engine for reducing rotor bow and method thereof

#28
20190017438
2019-01-17

Gas turbine engine with an engine rotor element turning device

#29
20180363511
2018-12-20

Turning device

#30
20180355764
2018-12-13

Low-power bowed rotor prevention system

#31
20180320557
2018-11-08

Turning device for a turbomachine

#32
20180306065
2018-10-25

Auxiliary rotation device for a gas turbine engine and a method of cooling a rotor of a gas turbine engine using an auxiliary rotation device

#33
20180283464
2018-10-04

Output assembly for an accessory gearbox of a gas turbine engine

#34
20180283220
2018-10-04

Engine shaft integrated motor

#35
20180283219
2018-10-04

Piezo-electric motor for bowed rotor mitigation

#36
20180283218
2018-10-04

Drive assembly for a gas turbine engine

#37
20180274390
2018-09-27

Bowed rotor prevention system

#38
20180230946
2018-08-16

High compressor build clearance reduction

#39
20180202315
2018-07-19

Electric motor arrangements for gas turbine engines

#40
20180149038
2018-05-31

Gas turbine engine wash system

#41
20180051594
2018-02-22

Turning apparatus and control method for turning apparatus

#42
20180016983
2018-01-18

STATE DETERMINING DEVICE, OPERATION CONTROLLING DEVICE, GAS TURBINE, AND STATE DETERMINING METHOD

#43
20180010648
2018-01-11

Mechanical shear fuse for engine motoring system

#44
20180010521
2018-01-11

Pinned mechanical fuse for engine motoring system

#45
20170363012
2017-12-21

Low-power bowed rotor prevention and monitoring system

#46
20170234238
2017-08-17

Gas turbine engine bowed rotor avoidance system

#47
20170234232
2017-08-17

Auxiliary drive bowed rotor prevention system for a gas turbine engine

#48
20170234230
2017-08-17

Bowed rotor start using direct temperature measurement

#49
20170234167
2017-08-17

Auxiliary drive bowed rotor prevention system for a gas turbine engine through an engine accessory

#50
20170234166
2017-08-17

Bowed rotor prevention system using waste heat

#51
20170226899
2017-08-10

Turning apparatus

#52
20170226858
2017-08-10

Turning device

#53
20170190441
2017-07-06

Aircraft engine and associated method for driving the fan with the low pressure shaft during taxi operations

#54
20170122125
2017-05-04

Method for managing a gas turbine assembly at low speed and corresponding gas turbine assembly

#55
20160333782
2016-11-17

Multiple turboshaft engine control method and system for helicopters

#56
20160305320
2016-10-20

Circular propulsion jet compressor-engine

#57
20160237900
2016-08-18

Turbomachine designed to operate in turning gear mode

#58
20160230671
2016-08-11

Turbomachine designed to operate in turning gear mode

#59
20160215649
2016-07-28

Apparatus to enable rotation of a compressor

#60
20150300362
2015-10-22

Method for joining bearing housing segments of a turbocharger incorporating an electric motor

#61
20150053029
2015-02-26

Turning device and rotating machine

#62
20140311260
2014-10-23

Gas turbine rotor positioning device

#63
20140309786
2014-10-16

Method for automatic positioning of a gas turbine rotor

#64
20140199157
2014-07-17

Method for barring a rotor of a turbomachine and barring apparatus for conducting such method

#65
20130243579
2013-09-19

Barring gear assembly for driving in rotation a shaft of a turbo-alternator group

#66
20130167679
2013-07-04

Actuating device for the rotation of a turbine shaft train

#67
20130149102
2013-06-13

Turning gear for gas turbine arrangements

#68
20130139518
2013-06-06

Multiple turboshaft engine control method and system for helicopters

#69
20120187923
2012-07-26

Method and assembly for the turning gear operation of a turbo set

#70
20110150567
2011-06-23

Mechanical drive device for driving the high pressure sub assembly of an airplane engine

#71
20110138816
2011-06-16

Driving device and an operation method of a compressor

#72
20100300117
2010-12-02

AIRCRAFT WITH DISENGAGEABLE AUXILIARY POWER UNIT COMPONENTS

#73
20090301053
2009-12-10

Gas turbine and method of operating a gas turbine

#74
20090278359
2009-11-12

Positioning of a rotor of a wind power plant

#75
20090044665
2009-02-19

Manual core rotation device

#76
20080279675
2008-11-13

Operation of an aircraft engine after emergency shutdown

#77
20080276620
2008-11-13

Method of operating a gas turbine engine

#78
20060260323
2006-11-23

Aircraft with disengageable engine and auxiliary power unit components

#79
20060230761
2006-10-19

Integral turning gear for turbine rotors

#80
20060222482
2006-10-05

Method and system for rotating a turbine stator ring

#81
20060188372
2006-08-24

Turning gear drive system

#82
20050284214
2005-12-29

Electric engine start system with inspection mode

#83
18299423
2024-06-25

Core turning system

#84
15643359
2020-01-14

Slow turning gear adapter to eliminate turbine bucket wear

#85
15042331
2017-05-30

Bowed rotor prevention system