ClassID:

72469

B64D2013/0648 - CPC Classification

Classification description:

Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft the air being conditioned; Environmental Control Systems with energy recovery means, e.g. using turbines

Recent Application in this class:
#1
20260098479
2026-04-09

RAM AIR TURBINE FIXED WITHIN AIRCRAFT WITH ENERGY RECOVERY FROM VENTED CABIN AIR

#2
20260084824
2026-03-26

SERIES TURBINE SIMPLE CYCLE ECS

#3
20260084823
2026-03-26

ENVIRONMENTAL CONTROL SYSTEM WITH CABIN VENT-AIR COOLED HEAT EXCHANGER AND WATER VAPOR COGENERATION

#4
20260043410
2026-02-12

AIR CYCLE MACHINE WITH AXIAL ROTORS AND INTEGRATED CABIN AIR COMPRESSOR

#5
20260035077
2026-02-05

ENVIRONMENTAL CONTROL SYSTEM UTILIZING INTEGRATED VAPOR COMPRESSION SYSTEM AND FOUR-WHEEL AIR CYCLE MACHINE

#6
20250382060
2025-12-18

ENVIRONMENTAL CONTROL SYSTEM OF AN AIRCRAFT CONFIGURED WITH A HERMETICALLY SEALED TURB-COMPRESSOR COUPLED TO A SHAFT VIA AN AXIAL FLUX MOTOR

#7
20250382059
2025-12-18

ENVIRONMENTAL CONTROL SYSTEM WITH INTEGRATED VAPOR COMPRESSION SYSTEM AND AIR CYCLE MACHINE

#8
20250376261
2025-12-11

ENVIRONMENTAL CONTROL SYSTEM OF AN AIRCRAFT CONFIGURED WITH A TWO-PHASE TURBINE ENCASED WITH A COMPRESSOR AND MOTOR

#9
20250361017
2025-11-27

Environmental Control System for an Aircraft

#10
20250353601
2025-11-20

FUEL CELL COOLING AND WASTE HEAT RECOVERY SYSTEM FOR GENERATING POWER FOR AIRCRAFT SYSTEMS

#11
20250340301
2025-11-06

ENVIRONMENTAL CONTROL SYSTEM OF AN AIRCRAFT CONFIGURED WITH A TWO-PHASE TURBINE ENCASED WITH A COMPRESSOR AND COUPLED TO A MOTOR HAVING A SHAFT COUPLING

#12
20250304264
2025-10-02

ENVIRONMENTAL CONTROL SYSTEM USING ARCHITECTURE WITH TURBINES IN SERIES

#13
20250304263
2025-10-02

ENVIRONMENTAL CONTROL SYSTEM USING ARCHITECTURE WITH TURBINES IN SERIES AND A MID-PRESSURE WATER SEPARATOR

#14
20250304262
2025-10-02

BLEEDLESS ENVIRONMENTAL CONTROL SYSTEM WITH MOTORIZED AIR CYCLE MACHINE

#15
20250304261
2025-10-02

BLEEDLESS ENVIRONMENTAL CONTROL SYSTEM

#16
20250296685
2025-09-25

POWER AND THERMAL MANAGEMENT SYSTEM AIR CYCLE MACHINE ELECTRIC POWER BOOST TO REDUCE HIGH PRESSURE COMPRESSOR BLEED FLOW

#17
20250269967
2025-08-28

ENVIRONMENTAL CONTROL SYSTEMS FOR AN AIRCRAFT HAVING A VAPOR COMPRESSION SYSTEM WITH A FLASH LIQUID EXPANDER TURBINE

#18
20250263170
2025-08-21

Aircraft Hybrid Cooling System

#19
20250236397
2025-07-24

MID-PRESSURE WATER SEPARATION FOR ENVIRONMENTAL CONTROL SYSTEM

#20
20250162718
2025-05-22

SYSTEM FOR SUPPLYING SOURCE AIR TO AN AIR SEPARATION MEMBRANE OF A FUEL INERTING SYSTEM

#21
20250074601
2025-03-06

LESS BLEED ENVIRONMENTAL CONTROL SYSTEM

#22
20250058882
2025-02-20

AIR CONDITIONING AND VAPOR CYCLE SYSTEM

#23
20250002171
2025-01-02

ENVIRONMENTAL CONTROL SYSTEM WITH LIQUID HYDROGEN FUEL VAPORIZATION FOR A COMBUSTION ENGINE

#24
20250002170
2025-01-02

ENVIRONMENTAL CONTROL SYSTEM WITH LIQUID HYDROGEN FUEL VAPORIZATION FOR A HYDROGEN FUEL CELL

#25
20250002161
2025-01-02

OUTFLOW ENERGY RECOVERY SYSTEM

#26
20240410625
2024-12-12

REGENERATION USING LIQUID LOOP OF ENVIRONMENTAL CONTROL SYSTEM

#27
20240343397
2024-10-17

PROCESS SYSTEM

#28
20240317408
2024-09-26

Apparatus for Controlling Temperature and Pressure of Aircraft

#29
20240308671
2024-09-19

AIR-CONDUCTING STRUCTURE FOR AN AIRCRAFT, AIR EJECTOR OR EJECTOR PUMP, AND AIRCRAFT

#30
20240294262
2024-09-05

AUTONOMOUS AIR CONDITIONING SYSTEM FOR AIRCRAFT

#31
20240286745
2024-08-29

ENERGY FLOW OF AN ADVANCED ENVIRONMENTAL CONTROL SYSTEM

#32
20240271627
2024-08-15

GEARED AIR CYCLE MACHINE FAN FOR AIRCRAFT SYSTEMS

#33
20240266566
2024-08-08

OXIDIZING AGENTS FOR EMERGENCY POWER UNITS

#34
20240263847
2024-08-08

MOTOR INTEGRATED AUXILIARY BEARINGS FOR AIRCRAFT MACHINES

#35
20240246681
2024-07-25

AIRCRAFT ENVIRONMENTAL CONTROL SYSTEM

#36
20240208652
2024-06-27

AIR MANAGEMENT SYSTEM WITH NEGATIVE ION TECHNOLOGY FOR IMPROVED AIR QUALITY

#37
20240182175
2024-06-06

RECIRCULATION AIR MOTOR DRIVEN ACM

#38
20240182174
2024-06-06

Environmental control system including mixed-flow turbine

#39
20240182173
2024-06-06

MOTOR INCORPORATING MAGNETIC BEARINGS

#40
20240077234
2024-03-07

Regeneration using liquid loop of environmental control system

#41
20240060500
2024-02-22

ROTOR INTEGRATED AXIAL FLUX ELECTRIC MOTOR

#42
20240043127
2024-02-08

Aircraft cabin air conditioning system

#43
20240017836
2024-01-18

AIR CYCLE MACHINE WITH INTEGRAL HEAT EXCHANGER

#44
20240002059
2024-01-04

Method and architecture for supplying air to an auxiliary power unit of an aircraft

#45
20230391459
2023-12-07

Environmental control system with no bleed driven throttle

#46
20230286657
2023-09-14

Driven turbocompressor of an air conditioning system having optimized cooling

#47
20230265793
2023-08-24

Environmental control systems

#48
20230264818
2023-08-24

Aircraft hybrid cooling system

#49
20230234710
2023-07-27

Environmental control system including humidity sensor

#50
20230228214
2023-07-20

Bleed flow assembly for a gas turbine engine

#51
20230132101
2023-04-27

Cabin blower system

#52
20230080053
2023-03-16

CRYOGENIC FLUID HEAT EXCHANGER SYSTEM FOR AN AIRCRAFT ENVIRONMENTAL CONTROL SYSTEM (ECS)

#53
20230002063
2023-01-05

Air conditioning system for a cabin of an air or rail transport vehicle using a pneumatic and thermal air source which is separate from the air conditioning source

#54
20220348334
2022-11-03

100% ambient air environmental control system with bleed turbine in series

#55
20220267013
2022-08-25

Using bleed air to supply outside air to a cabin

#56
20220250753
2022-08-11

Air conditioning system with cabin air recovery

#57
20220242580
2022-08-04

Ambient air architecture with single ACM without an ambient turbine

#58
20220169393
2022-06-02

AMBIENT AIR ARCHITECTURE WITH SINGLE AIR CYCLE MACHINE AND HIGH PRESSURE WATER SEPARATOR

#59
20220144438
2022-05-12

Environmental control system for supersonic commercial aircraft

#60
20220135236
2022-05-05

AIRCRAFT HAVING AN ENGINE AND A SYSTEM FOR COOLING THE ENGINE

#61
20220048636
2022-02-17

Exchanger for cooling warm primary air with cool secondary air and system for air conditioning provided with such an exchanger

#62
20220033093
2022-02-03

Aircraft environmental control system

#63
20220033087
2022-02-03

Aircraft environmental control system

#64
20220033086
2022-02-03

Aircraft environmental control system

#65
20210362858
2021-11-25

ECS using cabin outflow air as an electricity source

#66
20210354832
2021-11-18

Shoestring environmental control system for an aircraft

#67
20210310498
2021-10-07

Bearing housing for a two-wheel air cycle machine

#68
20210309372
2021-10-07

Turbine housing for a two wheel air cycle machine

#69
20210291990
2021-09-23

Fresh air ECS

#70
20210245888
2021-08-12

Optimized environmental control system for military aircraft

#71
20210229817
2021-07-29

ENERGY RECOVERY DEVICE FOR AIRCRAFT

#72
20210221521
2021-07-22

Aircraft air conditioning device

#73
20210188449
2021-06-24

Air cycle machines, air cycle machine systems, and methods of controlling air flow in air cycle machines

#74
20210188448
2021-06-24

Air cycle machines, air cycle machine systems, and methods of controlling air flow in air cycle machines

#75
20210171204
2021-06-10

Bootstrap air cycle with vapor power turbine

#76
20210130004
2021-05-06

Aircraft energy harvesting system

#77
20210119568
2021-04-22

System for converting energy

#78
20210053687
2021-02-25

AIR CONDITIONING SYSTEM WITH INTEGRATED CABIN PRESSURE CONTROL

#79
20210047044
2021-02-18

Energy flow of an advanced environmental control system

#80
20210039794
2021-02-11

Cabin outflow air energy optimized cabin pressurizing system

#81
20200391870
2020-12-17

Using bleed air to supply outside air to a cabin

#82
20200340403
2020-10-29

Turbine-turbine generator power thermal management system

#83
20200331615
2020-10-22

Aircraft with environmental control system

#84
20200298981
2020-09-24

Environmental control system for an aircraft

#85
20200298980
2020-09-24

Shoestring environmental control system for an aircraft

#86
20200283157
2020-09-10

Air freight system

#87
20200283155
2020-09-10

Low pressure pack

#88
20200283154
2020-09-10

Low pressure pack

#89
20200277079
2020-09-03

Air cycle machine connected to engine gearbox

#90
20200189749
2020-06-18

Alternate fresh air compressor intake for environmental control system

#91
20200164989
2020-05-28

JET ENGINE COMPRISING A DRAWING SYSTEM INTENDED TO DRAW AIR FROM SAID JET ENGINE

#92
20200140096
2020-05-07

Aircraft air conditioning system with a cabin exhaust air turbine

#93
20200140095
2020-05-07

Aircraft air conditioning system with a cabin exhaust air turbine

#94
20200108937
2020-04-09

Dual turbine thermal management system (TMS)

#95
20200080786
2020-03-12

Evaporative cooling in additive manufactured heat exchangers

#96
20200070986
2020-03-05

Air-driven vapor cycle refrigeration system

#97
20200070984
2020-03-05

Aircraft air conditioning system and method of operating an aircraft air conditioning system

#98
20200010202
2020-01-09

Aircraft air conditioning system and method of operating an aircraft air conditioning system

#99
20190352016
2019-11-21

Inerting system and method for an aircraft using exhaust air

#100
20190337627
2019-11-07

Two mode system that provides bleed and outside air or just outside air

#101
20190322374
2019-10-24

Air freight temperature controlled device using liquid nitrogen

#102
20190300181
2019-10-03

Liquid reheater heat exchanger in an air cycle system

#103
20190291875
2019-09-26

Cooling system, air conditioning pack, and method for conditioning air

#104
20190291873
2019-09-26

Air drying system and method therefor

#105
20190283897
2019-09-19

COOLED AIR SOURCE FOR A CATALYTIC INERTING CONDENSER

#106
20190225344
2019-07-25

ECS dual entry ram inlet plenum

#107
20190225343
2019-07-25

Aircraft environmental control system

#108
20190217960
2019-07-18

Vehicle air conditioning pack with air cycle assembly

#109
20190211842
2019-07-11

Fan and compressor housing for an air cycle machine

#110
20190185167
2019-06-20

Autonomous aircraft cabin energy recovery module and corresponding method

#111
20190162121
2019-05-30

Complex air supply system for gas turbine engine and associated aircraft

#112
20190152612
2019-05-23

Oxygen supply device and method for supplying a passenger cabin of an aircraft with oxygen

#113
20190135441
2019-05-09

Regenerative system ECOECS

#114
20190135440
2019-05-09

Aircraft enviromental control system with series bleed air turbines

#115
20190112052
2019-04-18

Supplemental pack driven by bleed air and cabin air

#116
20190049187
2019-02-14

Evaporative cooling in additive manufactured heat exchangers

#117
20190039738
2019-02-07

Cabin outflow air energy optimized cabin pressurizing system

#118
20190017399
2019-01-17

Aircraft incorporating a thrust recovery system using cabin air

#119
20190003382
2019-01-03

Geared turbofan engine with low pressure environmental control system for aircraft

#120
20190002111
2019-01-03

Mixing bleed and ram air using an air cycle machine with two turbines

#121
20190002110
2019-01-03

MIXING BLEED AND RAM AIR USING AN AIR CYCLE MACHINE WITH TWO TURBINES

#122
20190002108
2019-01-03

Three wheel and simple cycle aircraft environmental control system

#123
20180370636
2018-12-27

Aircraft cabin environmental control system and method and aircraft equipped with such control system

#124
20180362166
2018-12-20

High efficiency electrically driven environmental control system

#125
20180346132
2018-12-06

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

#126
20180331599
2018-11-15

Motor cooling utilizing cabin air

#127
20180327099
2018-11-15

Blended flow air cycle system for environmental control

#128
20180291925
2018-10-11

Fan inlet diffuser housing for an air cycle machine system

#129
20180281977
2018-10-04

Turbine-assisted cabin air compressor

#130
20180281976
2018-10-04

Hybrid third air condition pack

#131
20180273186
2018-09-27

Environmental control system pack with an air supply manifold

#132
20180237144
2018-08-23

Two mode system that provides bleed and outside air or just outside air

#133
20180237130
2018-08-23

AIRCRAFT USING ENERGY RECOVERY SYSTEMS

#134
20180215474
2018-08-02

Advanced environmental control system in an integrated pack arrangement with one bleed/outflow heat exchanger

#135
20180215473
2018-08-02

Advanced environmental control system in an integrated split pack arrangement with one bleed/outflow heat exchanger

#136
20180215472
2018-08-02

Advanced environmental control system in an integrated split pack arrangement with two bleed/outflow heat exchangers

#137
20180208327
2018-07-26

Environmental control system for an aeronautic vehicle

#138
20180194481
2018-07-12

Simplified recuperating electric ECS

#139
20180194480
2018-07-12

Jet engine cold air cooling system

#140
20180194479
2018-07-12

Jet engine cold air cooling system

#141
20180170554
2018-06-21

Environmental control system with ejector-enhanced cooling

#142
20180148184
2018-05-31

Aircraft air conditioning system that is operable assisted by cabin exhaust air with a pneumatically powered ambient air compressor

#143
20180148183
2018-05-31

Aircraft air conditioning system that is operable assisted by cabin exhaust air with an electrically powered ambient air compressor

#144
20180135513
2018-05-17

Electrically boosted regenerative bleed air system

#145
20180058333
2018-03-01

Bleed air systems for use with aircraft and related methods

#146
20180057170
2018-03-01

ENHANCED METHOD AND AIRCRAFT FOR PRE-COOLING AN ENVIRONMENTAL CONTROL SYSTEM USING A TWO WHEEL TURBO-MACHINE WITH SUPPLEMENTAL HEAT EXCHANGER

#147
20170342899
2017-11-30

Multiple nozzle configurations for a turbine of an environmental control system

#148
20170341770
2017-11-30

Aircraft cabin pressurization energy harvesting

#149
20170341768
2017-11-30

Environmental control system with an outflow heat exchanger

#150
20170341767
2017-11-30

Mixing bleed and ram air at a turbine inlet

#151
20170341766
2017-11-30

Mixing bleed and ram air at a turbine inlet of a compressing device

#152
20170341765
2017-11-30

Mixing bleed and ram air using an air cycle machine with two turbines

#153
20170341761
2017-11-30

Mixing bleed and ram air using a dual use turbine system

#154
20170341760
2017-11-30

Energy flow of an advanced environmental control system

#155
20170341759
2017-11-30

Energy flow

#156
20170341758
2017-11-30

Mixing bleed and ram air using a two turbine architecture with an outflow heat exchanger

#157
20170327235
2017-11-16

Dual-use air turbine system for a gas turbine engine

#158
20170305560
2017-10-26

Environmental control system utilizing multiple mix points for recirculation air in accordance with pressure mode and motor assist

#159
20170305559
2017-10-26

ENVIRONMENTAL CONTROL SYSTEM UTILIZING ENHANCED COMPRESSOR

#160
20170305558
2017-10-26

Environmental control system utilizing two pass secondary heat exchanger and cabin pressure assist

#161
20170305557
2017-10-26

Environmental control system utilizing multiple mix points for recirculation air in accordance with pressure mode

#162
20170305556
2017-10-26

Environmental control system utilizing bleed pressure assist

#163
20170275004
2017-09-28

Aircraft air conditioning system with an electrically driven ambient air compressor and method for operating such an aircraft air conditioning system

#164
20170268838
2017-09-21

Pack-and-A-half architecture for environmental control systems

#165
20170267359
2017-09-21

TANDEM AIR CYCLE MACHINE MODULE FOR ENVIRONMENTAL CONTROL SYSTEMS

#166
20170267358
2017-09-21

Dewatering device for an air conditioning system of a plane

#167
20170233083
2017-08-17

Thermal management systems and methods

#168
20170233082
2017-08-17

Thermal management systems and methods

#169
20170204867
2017-07-20

Weld repair for an air cycle machine compressor housing

#170
20170203845
2017-07-20

Low pressure pack

#171
20170191499
2017-07-06

Fan shroud

#172
20170190430
2017-07-06

Air conditioning system

#173
20170170494
2017-06-15

Integrated fuel cell aircraft pressurization and cooling system

#174
20170167293
2017-06-15

Thrust bearing assembly with flow path restriction

#175
20170152050
2017-06-01

Aircraft air conditioning system with ambient air supply and method for operating such an aircraft air conditioning system

#176
20170129614
2017-05-11

Aircraft air conditioning system with a cabin exhaust air turbine

#177
20170106985
2017-04-20

Aircraft pneumatic system

#178
20170057641
2017-03-02

Integrated air and vapor cycle cooling system

#179
20170016344
2017-01-19

Air cycle machine lockout tool

#180
20160362188
2016-12-15

FUEL TANK INERTING APPARATUS FOR AIRCRAFT

#181
20160356167
2016-12-08

Air cycle machine turbine seal plate

#182
20160355270
2016-12-08

No primary heat exchanger and bleed air (cabin discharge air) assist

#183
20160355267
2016-12-08

Recirculation system for parallel ram heat exchangers

#184
20160347456
2016-12-01

Aircraft environmental control system

#185
20160340048
2016-11-24

Blended flow air cycle system for environmental control

#186
20160340047
2016-11-24

Heat recovery system, in particular for use on aircraft, using a two-phase fluid circuit

#187
20160325840
2016-11-10

Compressor mount bracket for aircraft cabin air supply system

#188
20160311540
2016-10-27

Modular environmental air conditioning system

#189
20160311539
2016-10-27

Environmental control system mixing cabin discharge air with bleed air during a cycle

#190
20160311538
2016-10-27

Environmental control system utilizing cabin discharge air to power a cycle

#191
20160304208
2016-10-20

Power augmentation for an air cycle machine of an environmental control system

#192
20160272331
2016-09-22

Air conditioning method and system for aircraft

#193
20160272330
2016-09-22

Aircraft comprising a heat exchanger

#194
20160272329
2016-09-22

Air cycle machine with cooling air flow path

#195
20160257410
2016-09-08

Replacement system providing replacement air to an inerting system

#196
20160229548
2016-08-11

Inerting system and method for an aircraft using exhaust air

#197
20160229541
2016-08-11

Environmental control system utilizing parallel RAM heat exchangers with air cycle machine speed compensation

#198
20160207629
2016-07-21

Cooling air supply control system for air cycle machine

#199
20160186586
2016-06-30

First stage turbine nozzle with erosion coating surface finish

#200
20160185461
2016-06-30

Integrated auxiliary power unit, starter-generator-motor, and vapor cycle cooling system for an aircraft

#201
20160153359
2016-06-02

Jet engine cold air cooling system

#202
20160146114
2016-05-26

Environmental air conditioning system

#203
20160144965
2016-05-26

Environmental control system utilizing cabin air to drive a power turbine of an air cycle machine

#204
20160107754
2016-04-21

Single stage engine bleed

#205
20160096629
2016-04-07

Trans-critical vapor cycle system with improved heat rejection

#206
20160090917
2016-03-31

Engine bleed air system

#207
20160083100
2016-03-24

Aircraft air conditioning system and method of operating an aircraft air conditioning system

#208
20150314878
2015-11-05

AIRCRAFT ENVIRONMENTAL CONDITIONING SYSTEM AND METHOD

#209
20150314877
2015-11-05

Environmental control system with air cycle machine bypass shutoff valves

#210
20150307196
2015-10-29

Environmental control system utilizing shoestring cycle to maximize efficiency

#211
20150307195
2015-10-29

Environmental control system utilizing shoestring cycle to maximize efficiency

#212
20150275769
2015-10-01

Bleed air systems for use with aircraft and related methods

#213
20150251766
2015-09-10

Turbo-compressor system and method for extracting energy from an aircraft engine

#214
20150233292
2015-08-20

Turbojet comprising a bleeding system for bleeding air in said turbojet

#215
20150233291
2015-08-20

Turbojet comprising a bleeding system for bleeding air in said turbojet

#216
20140366563
2014-12-18

Adaptive trans-critical COcooling systems for aerospace applications

#217
20140305130
2014-10-16

Aircraft environmental control system inlet flow control

#218
20140290287
2014-10-02

Method and architecture for recovery of energy in an aircraft

#219
20130340459
2013-12-26

Fluid temperature control installation for rotorcraft, associating a system for cooling a power plant with a system for heating a cabin

#220
20130283816
2013-10-31

Turboprop-powered aircraft with thermal system

#221
20130133348
2013-05-30

Blended flow air cycle system for environmental control

#222
20130118191
2013-05-16

Turbo air compressor with pressure recovery

#223
20120146403
2012-06-14

Aircraft comprising a reversible rotary electrical machine

#224
20110192565
2011-08-11

Arrangement and method for utilizing the heat of waste air for heating the bilge area of aircraft

#225
20110151762
2011-06-23

Air supply system of an aircraft and method for mixing two air streams in an air supply system

#226
20100323601
2010-12-23

AIR CONDITIONING SYSTEM FOR AIRCRAFT CABINS

#227
20080217476
2008-09-11

Aircraft including an air conditioning system

#228
20080032616
2008-02-07

Aircraft air conditioning system and method of operating an aircraft air conditioning system

#229
20060138280
2006-06-29

Arrangement and method for utilizing the heat of waste air for heating the bilge area of aircraft

#230
20050188716
2005-09-01

Air-conditioning system and a method for the preparation of air for the air-conditioning of a space

#231
18797949
2026-02-10

Air cycle machine with axial rotors and integrated cabin air compressor

#232
18464147
2024-12-10

Metal plated plastic ACM part with internal thermally adaptive structure

#233
15873723
2019-12-10

Integrated aircraft cooling machine

#234
13659897
2017-06-06

Aircraft air conditioning systems and methods