ClassID:

136937

F01D17/26 - CPC Classification

Classification description:

Regulating or controlling by varying flow; Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical fluid, e.g. hydraulic

Recent Application in this class:
#1
20260098500
2026-04-09

MODULATED AIR FLOW HEAT EXCHANGER SYSTEM IN BI-FI DUCT

#2
20260049557
2026-02-19

TURBOFAN ENGINE INCLUDING A FAN ACTUATION SYSTEM

#3
20250283431
2025-09-11

FUELDRAULIC HEAT MANAGEMENT SYSTEM

#4
20250230753
2025-07-17

TURBOFAN ENGINE INCLUDING A FAN ACTUATION SYSTEM

#5
20250215814
2025-07-03

COOLING GAS RECOVERED FROM A WELL

#6
20250215803
2025-07-03

TURBOFAN ENGINE INCLUDING A FAN ACTUATION SYSTEM

#7
20240401530
2024-12-05

TURBINE ENGINE COMPRISING AN OIL SUPPLY SYSTEM

#8
20240102388
2024-03-28

Valve position control

#9
20240052756
2024-02-15

HYDRAULIC DRIVE VALVE MONITORING DEVICE

#10
20240026803
2024-01-25

Cooling gas recovered from a well

#11
20230175415
2023-06-08

On-line verifiable trip and throttle valve actuator

#12
20230122939
2023-04-20

Gas turbine engine with compressor bleed system for combustor start assist

#13
20220251966
2022-08-11

Gas turbine engine actuation device

#14
20220154602
2022-05-19

VALVE POSITION CONTROL

#15
20220145774
2022-05-12

Self contained hydraulic lock apparatus

#16
20220082027
2022-03-17

Method for monitoring the operating state of a system for positioning variable-geometry members of a turbomachine

#17
20210388735
2021-12-16

Steam turbine valve abnormality monitoring system, steam turbine valve drive device, steam turbine valve device, and steam turbine plant

#18
20210372292
2021-12-02

Variable guide vanes assembly

#19
20210231026
2021-07-29

Valve drive device and steam turbine system

#20
20210188072
2021-06-24

Hydraulic energy collection system

#21
20210095698
2021-04-01

Actuating drive having a hydraulic outflow booster

#22
20210054789
2021-02-25

Turbine control system

#23
20210054765
2021-02-25

Valve position control

#24
20200232338
2020-07-23

ACTUATOR

#25
20190390563
2019-12-26

Assembly for controlling variable pitch blades

#26
20190309647
2019-10-10

Pneumatic controller for controlling a bleed valve

#27
20190234230
2019-08-01

Valve device for turbine, turbine, and method for producing valve device and turbine

#28
20190145527
2019-05-16

Main stop valve

#29
20190118934
2019-04-25

Oil transfer for a control system regulating the propeller pitch of a turbine engine

#30
20190063475
2019-02-28

Actuator cooling flow limiter

#31
20190032811
2019-01-31

DAMPED RELIEF VALVE USING DOUBLE PISTONS

#32
20180283199
2018-10-04

Engine turning motor via pneumatic or hydraulic motor

#33
20180274384
2018-09-27

SENSOR AND HOUSING DESIGN FOR IN-LINE FLUID MONITORING

#34
20180016931
2018-01-18

Assembly for controlling variable pitch vanes in a turbine engine

#35
20170356532
2017-12-14

Linear motion mechanism, valve device, and steam turbine

#36
20170356469
2017-12-14

Compressor geometry control

#37
20170268432
2017-09-21

Emergency shutoff device and emergency shutoff system provided with same

#38
20170152759
2017-06-01

Hydraulic control device for an emergency stop valve of a steam turbine and steam turbine arrangement

#39
20160333822
2016-11-17

Variable area fan nozzle actuation system

#40
20160237913
2016-08-18

Full-area bleed valves

#41
20160102575
2016-04-14

Steam valve

#42
20160061117
2016-03-03

Rotary actuator for variable geometry vanes

#43
20160032760
2016-02-04

Housing for a gas turbine, aircraft engine, and a process for operating a gas turbine

#44
20160010490
2016-01-14

Fan drive thrust balance

#45
20150361821
2015-12-17

Rotary actuator for variable vane adjustment system

#46
20150300294
2015-10-22

Rotary hydraulic motor driven hybrid thrust reverser actuation system with end-of-stroke snubbing

#47
20150240827
2015-08-27

Rotary actuator with integrated actuation

#48
20150198094
2015-07-16

Ceramic pedestal and shield for gas path temperature measurement

#49
20140077116
2014-03-20

METHODS AND SYSTEMS FOR OPERATING AN INTEGRATED ACTUATOR

#50
20130145743
2013-06-13

CASE ASSEMBLY WITH FUEL DRIVEN ACTUATION SYSTEMS

#51
20130092245
2013-04-18

Aircraft hydraulic air bleed valve system

#52
20120199211
2012-08-09

AIRFLOW CONTROL SYSTEM

#53
20120011839
2012-01-19

AUXILIARY HYDRAULIC POWER GENERATION SYSTEM

#54
20110315948
2011-12-29

Memory device using ion implant isolated conductive metal oxide

#55
20110315943
2011-12-29

Memory Device Using A Dual Layer Conductive Metal Oxide Structure

#56
20110232479
2011-09-29

Piston with a duct under a gasket

#57
20110142640
2011-06-16

CYLINDER DRIVING DEVICE

#58
20110110765
2011-05-12

Inlet guide vane drive system with spring preload on mechanical linkage

#59
20100215483
2010-08-26

Actuator

#60
20100163772
2010-07-01

Actuator

#61
20100159641
2010-06-24

Memory cell formation using ion implant isolated conductive metal oxide

#62
20100126168
2010-05-27

Turbocharger with variable turbine nozzle actuated by hydraulic and mechanical spring forces

#63
20100078089
2010-04-01

Hydraulic trip unit for a valve unit in a prime mover plant, especially for a fast-acting shut-off valve of a turbine plant

#64
20100006165
2010-01-14

HYDRAULICALLY ACTUATED PNEUMATIC REGULATOR

#65
20090217987
2009-09-03

Methods and apparatus for regulating gas turbine engine fluid flow

#66
20090217986
2009-09-03

Methods and apparatus for regulating gas turbine engine fluid flow

#67
20090179433
2009-07-16

SYSTEM AND METHOD FOR ELECTRICAL POWER GENERATION UTILIZING VEHICLE TRAFFIC ON ROADWAYS

#68
20090155053
2009-06-18

Turbine cooling flow modulation

#69
20080224477
2008-09-18

System and method for electrical power generation utilizing vehicle traffic on roadways

#70
20070084210
2007-04-19

Method and apparatus for performing gas turbine engine maintenance

#71
20070000349
2007-01-04

Drive arrangement

#72
18400746
2025-07-01

Turbofan engine including a fan actuation system

#73
16719078
2020-11-17

Hydraulic energy collection system