ClassID:

145685

F05D2270/333 - CPC Classification

Classification description:

Control; Control parameters, e.g. input parameters Noise or sound levels

Recent Application in this class:
#1
20260146545
2026-05-28

LIQUID FLUID SYSTEMS FOR TURBINE ENGINES

#2
20260063079
2026-03-05

LOW NOISE TURBINE FOR GAS TURBINE ENGINE

#3
20250207509
2025-06-26

LIQUID FLUID SYSTEMS INCLUDING PHASE DETECTION SENSORS FOR TURBINE ENGINES

#4
20250206454
2025-06-26

GAS TURBINE ENGINE NOISE REDUCTION

#5
20250003611
2025-01-02

BATHROOM EXHAUST FAN SWITCHING DEVICE

#6
20250003426
2025-01-02

LOW NOISE TURBINE FOR GEARED TURBOFAN ENGINE

#7
20240254996
2024-08-01

PUMP MONITORING SYSTEM AND METHOD

#8
20240167395
2024-05-23

RUBBING POSITION IDENTIFICATION DEVICE AND RUBBING POSITION IDENTIFICATION METHOD FOR ROTATING MACHINE

#9
20240084748
2024-03-14

METHOD OF OPTIMIZING THE NOISE GENERATED IN FLIGHT BY A ROTORCRAFT

#10
20240051673
2024-02-15

Gas turbine engine noise reduction

#11
20230296114
2023-09-21

Low noise turbine for geared turbofan engine

#12
20230279817
2023-09-07

Pericritical fluid systems for turbine engines

#13
20230279784
2023-09-07

Liquid fluid systems including phase detection sensors for turbine engines

#14
20230258129
2023-08-17

HYBRID TURBOMACHINE FOR AIRCRAFT WITH AN ACTIVE ACOUSTIC CONTROL SYSTEM

#15
20230184179
2023-06-15

Aircraft propulsion system

#16
20210372330
2021-12-02

Lean blowout precursor detection for gas turbines

#17
20200408107
2020-12-31

Thermal management system using shape memory alloy actuator

#18
20200392898
2020-12-17

Turbofan engine with acoustic treatment

#19
20200284270
2020-09-10

LOW NOISE TURBINE FOR GEARED TURBOFAN ENGINE

#20
20200263606
2020-08-20

Gas turbine engine with differing effective perceived noise levels at differing reference points and methods for operating gas turbine engine

#21
20200088108
2020-03-19

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

#22
20190284955
2019-09-19

Fault detecting apparatus, gas turbine, and method of detecting fault

#23
20190153891
2019-05-23

THREE SPOOL TURBOFAN ENGINE WITH LOW NOISE INTERMEDIATE TURBINE ROTOR

#24
20190131902
2019-05-02

Vibration control method and system

#25
20190128324
2019-05-02

Resonance vibration control method and system

#26
20190063314
2019-02-28

Active system generating destructive acoustic interference for an aircraft engine with multiple fan spools

#27
20180334967
2018-11-22

Signal processing apparatus, turbine system, signal processing method, and program

#28
20180328221
2018-11-15

System and method for planning engine borescope inspections based on FOD probability estimation

#29
20180310434
2018-10-25

Apparatus for dynamic positioning of a fan to reduce noise

#30
20180258958
2018-09-13

Blower assembly having resonators and resonator assembly

#31
20180258865
2018-09-13

Methods and apparatus for closed-loop control of a gas turbine

#32
20180223742
2018-08-09

Signal processing for auto-tuning a gas turbine engine

#33
20180178925
2018-06-28

Starter issue detection

#34
20180163629
2018-06-14

Pilot/main fuel shifting in an axial staged combustor for a gas turbine engine

#35
20180149083
2018-05-31

Variable volume acoustic damper

#36
20180066545
2018-03-08

Turbomachine test bench with active noise control

#37
20170261399
2017-09-14

Method for carrying out a sound test of atleast one component and endoscope device used for the same

#38
20170016396
2017-01-19

Acoustic measurement system incorporating a temperature controlled waveguide

#39
20170009996
2017-01-12

Combustor assembly for a gas turbine engine and method of making same

#40
20160356277
2016-12-08

Active damping of oscillations in a control process

#41
20160153310
2016-06-02

Three spool turbofan engine with low noise intermediate turbine rotor

#42
20160032842
2016-02-04

Combustor and gas turbine with phase adjusting units in the fuel nozzles

#43
20150377485
2015-12-31

Combustion instability control method

#44
20150292521
2015-10-15

Blower and method for decreasing eddy noise

#45
20150125261
2015-05-07

Valve sequencing system and method for controlling turbomachine acoustic signature

#46
20130174567
2013-07-11

Automatic Engine Noise Reduction

#47
20110103930
2011-05-05

Valve Sequencing System and Method for Controlling Turbomachine Acoustic Signature

#48
20100269574
2010-10-28

Cavitation detection