ClassID:

72596

B64D2033/0213 - CPC Classification

Classification description:

Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes specially adapted for auxiliary power units (APU's)

Recent Application in this class:
#1
20250084790
2025-03-13

Aircraft engine assembly for controlling engine oil flow during fire conditions and method for using same

#2
20240400219
2024-12-05

Inlet system for auxiliary power unit

#3
20240200493
2024-06-20

Removable mechanical part for acoustic insulation of an air inlet casing

#4
20240059424
2024-02-22

Auxiliary power unit air inlet door with specified acoustic reflecting and/or diffusing characteristics

#5
20230211891
2023-07-06

Auxiliary power unit adaptive cooldown cycle system and method

#6
20230099948
2023-03-30

Aircraft with a combustion engine having an exhaust ahead of its air intake

#7
20230020198
2023-01-19

Air mobility vehicle

#8
20220274716
2022-09-01

Anti-surge regulation for a charging compressor with which an auxiliary power unit is equipped

#9
20220234751
2022-07-28

Auxiliary power unit adaptive cooldown cycle system and method

#10
20220204179
2022-06-30

Auxiliary power systems, aircraft including the same, and related methods

#11
20220185495
2022-06-16

Aircraft and method of operating an aircraft comprising an air separation device

#12
20220119100
2022-04-21

Air mobility vehicle

#13
20210362865
2021-11-25

Airplane with improved safety

#14
20210348564
2021-11-11

Engine bleed power recovery systems and related methods

#15
20200408106
2020-12-31

Acoustical health monitoring for turbomachinery

#16
20200385136
2020-12-10

Laminar inducing apparatus

#17
20200380804
2020-12-03

Auxiliary power unit startup condition prediction

#18
20200325851
2020-10-15

Systems and methods of acoustic dampening in a gas turbine engine

#19
20200223555
2020-07-16

Auxiliary power unit adaptive cooldown cycle system and method

#20
20200040819
2020-02-06

Air inlet system for auxiliary power units

#21
20190390601
2019-12-26

Air intake system

#22
20190264610
2019-08-29

Auxetic bi-stable structure

#23
20190127077
2019-05-02

Aircraft tailcone incorporating an APU annular air intake

#24
20180354637
2018-12-13

Aft fan counter-rotating turbine engine

#25
20180346132
2018-12-06

Aircraft incorporating a power unit for generating electric, pneumatic and/or hydraulic power

#26
20180346101
2018-12-06

Thermally controlled active flow control system

#27
20180257788
2018-09-13

AIR INTAKE ASSEMBLY WITH HORIZONTAL DOOR FOR AN AIRCRAFT AUXILIARY POWER UNIT

#28
20180237165
2018-08-23

System and method for auxiliary power unit inlet door testing

#29
20180237153
2018-08-23

System and method for controlling an auxiliary power unit inlet door

#30
20180237152
2018-08-23

System and method for selecting an opening angle of an auxiliary power unit inlet door

#31
20180237149
2018-08-23

System and method for controlling a position of an auxiliary power unit inlet door

#32
20180156334
2018-06-07

Aircraft fire seal structure and aircraft

#33
20180106225
2018-04-19

Auxiliary power unit inlet assembly with particle separator

#34
20180106224
2018-04-19

Auxiliary power unit inlet assembly with filter

#35
20180093779
2018-04-05

Translatable scoop for auxiliary power units air intake

#36
20180002029
2018-01-04

Support device for actuator, air intake system and aircraft

#37
20170335711
2017-11-23

Inlet door state control system

#38
20170297680
2017-10-19

Thermally controlled active flow control system

#39
20170190439
2017-07-06

Auxiliary power unit inlet apparatus and methods

#40
20170174356
2017-06-22

Auxiliary power unit inlet duct assembly for mitigating noise

#41
20170166320
2017-06-15

Method and system for optimized production of non-propulsive energy

#42
20170036775
2017-02-09

Aircraft heating assembly with liquid cooled internal combustion engine and heating element using waste heat

#43
20170016513
2017-01-19

Power transmission gearbox and an aircraft

#44
20160264251
2016-09-15

Acoustic controlled ice deflecting auxiliary power unit inlet system

#45
20160177724
2016-06-23

Compartment based inlet particle separator system

#46
20160159489
2016-06-09

Fire containment apparatuses for aircraft duct assemblies

#47
20160152344
2016-06-02

Fire extinction design for an auxiliary power unit compartment of an aircraft

#48
20160075435
2016-03-17

Aircraft environmental control system air duct arrangement

#49
20150367952
2015-12-24

Structure for feeding air to an auxiliary power unit in an aircraft

#50
20150353203
2015-12-10

Acoustically diffusive auxilary power unit inlet doors

#51
20150167552
2015-06-18

Fluid intake system

#52
20150115099
2015-04-30

Auxiliary power unit inlet door having openings formed therein

#53
20150031276
2015-01-29

Auxiliary power unit inlet apparatus and methods

#54
20140332624
2014-11-13

Inlet duct screen assembly

#55
20140151150
2014-06-05

Monolithic acoustically-treated composite structures and methods for fabricating the same

#56
20130213729
2013-08-22

Monolithic acoustically-treated composite structures and methods for fabricating the same

#57
20130168502
2013-07-04

Aircraft air inlet diverter assemblies with improved aerodynamic characteristics

#58
20130081706
2013-04-04

Air intake with double inlet door

#59
20130037122
2013-02-14

Pressure influencing assembly for an aircraft auxiliary system

#60
20130001369
2013-01-03

Auxiliary power unit inlet

#61
20120292455
2012-11-22

Auxiliary power unit inlet duct screen assembly

#62
20120151933
2012-06-21

Method and system for feeding and ventilating with air a plant of an aircraft auxiliary power unit

#63
20120128487
2012-05-24

Remote shaft driven open rotor propulsion system with electrical power generation

#64
20110303786
2011-12-15

Silencer for an auxiliary power unit of an aircraft

#65
20110188989
2011-08-04

Exhaust eductor system with a recirculation baffle

#66
20110001019
2011-01-06

Ram door assemblies

#67
20100307442
2010-12-09

Engine intake flap for being arranged on the housing of an air intake of an aircraft engine, as well as engine with such an engine intake flap and aircraft system

#68
20100068036
2010-03-18

Auxiliary power unit inlet duct with acoustic silencing

#69
20100044504
2010-02-25

Rear propulsion system with lateral air inlets for an aircraft with such system

#70
20100044502
2010-02-25

Beam mounted rear propulsion system for an aircraft and aircraft with such system

#71
20100013245
2010-01-21

Auxiliary power unit inlet door actuation mechanism

#72
20090272847
2009-11-05

AFT inlet duct mounted door actuator

#73
20090152406
2009-06-18

Rotating auxiliary power unit air inlet door

#74
20090065297
2009-03-12

Dual action inlet door and method for use thereof

#75
20090025393
2009-01-29

Auxiliary power unit assembly

#76
20080245062
2008-10-09

Passive cooling system for auxiliary power unit installation

#77
20080179466
2008-07-31

Dual flow APU inlet and associated systems and methods

#78
20080098747
2008-05-01

Auxiliary power unit assembly

#79
20080098743
2008-05-01

Exhaust eductor system with a recirculation baffle

#80
20080057848
2008-03-06

Venturi gate valve assembly for an auxiliary power unit

#81
20070246607
2007-10-25

Diffusing air inlet door assembly

#82
20070234731
2007-10-11

System and method for providing air to a compressor of an aircraft auxiliary gas turbine engine

#83
20070068169
2007-03-29

Auxiliary power unit inlet door position control system and method

#84
20070063098
2007-03-22

Passive cooling system for auxiliary power unit installation

#85
20070022731
2007-02-01

Compact, light weight eductor oil cooler plenum and surge flow plenum design

#86
20060196993
2006-09-07

Pre-hung inlet door system

#87
20060179846
2006-08-17

Auxiliary power unit intake duct with aero-acoustic guide vanes

#88
20060163425
2006-07-27

Aircraft inlet assembly for reducing auxiliary power unit noise

#89
20060102781
2006-05-18

Dual action inlet door and method for use thereof

#90
20060102779
2006-05-18

Dual flow APU inlet and associated systems and methods

#91
20060102776
2006-05-18

Dual action inlet door and method for use thereof

#92
20060076430
2006-04-13

Methods and systems for simulating multi-phase fluid flows, including fire suppressant flows

#93
20050268593
2005-12-08

Thermal management for aircraft auxiliary power unit compartment

#94
20050224635
2005-10-13

Dual action inlet door and method for use thereof

#95
19043821
2026-01-27

Heat resistant joining line seal system

#96
15907206
2019-05-07

Foreign object debris barrier filter apparatus for an aircraft intake system