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公开(公告)号：US12187442B2
公开(公告)日：2025-01-07
申请号：US18030797
申请日：2021-10-06
Applicant: LIEBHERR-AEROSPACE TOULOUSE SAS
Inventor： Karin Prince , David Lavergne
IPC: B64D15/06 , H01M8/0267 , H01M8/04701 , B64D41/00
Abstract: System for protecting an outer surface of an aircraft comprising at least two fuel cells (112, 212) from icing, characterized in that it comprises a first and a third liquid circuit (114, 214) each causing a cooling liquid of the fuel cells (112, 212) to flow, a second and a fourth liquid circuit (118a, 118b) each causing an icing protection liquid to flow, at least two icing protection heat exchangers (120a-d, 220a-d) arranged on the outer surface of the aircraft and having each icing protection liquid pass through them when it flows in the second or fourth liquid circuit (118a, 118b), and two liquid-liquid heat exchangers (116, 216) in which the cooling liquids form a hot pass and the icing protection liquids form a cold pass to reheat the icing protection liquid by the heat from the cooling liquids.
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公开(公告)号：US12151819B2
公开(公告)日：2024-11-26
申请号：US17288901
申请日：2019-10-22
Applicant: LIEBHERR-AEROSPACE TOULOUSE SAS
Inventor： Viviane Ciais , Arnaud Caron
IPC: B64D13/06
Abstract: The invention relates to a loop (40) for extracting water from an air conditioning system of a cabin (5) of an air or rail transport vehicle comprising an air cycle turbine engine (20), the loop comprising: a condenser (41); a three-dimensional mesh grid (45) housed in an outlet box (42) of the condenser and configured to be able to capture water droplets in a stream of moist air condensed by the condenser; a water recovery unit (46) opening on the condenser outlet box (42) and arranged under the three-dimensional mesh grid (45) so as to be able to recover, by force of gravity, the water collected by the three-dimensional mesh grid (45); an air return pipe (44) linking the outlet box (42) to a supply interface for directly or indirectly supplying the turbine of the air conditioning system.
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公开(公告)号：US12129035B2
公开(公告)日：2024-10-29
申请号：US17621572
申请日：2020-06-16
Applicant: LIEBHERR-AEROSPACE TOULOUSE SAS
Inventor： David Lavergne , Frederic Sanchez
IPC: B64D13/06
CPC classification number: B64D13/06 , B64D2013/0611 , B64D2013/0644
Abstract: The invention relates to an electrical air conditioning system for air conditioning a cabin (10) of an aircraft comprising a source (11) of fresh air, a dynamic air circulation duct (12), a motorized compressor (13) comprising an air inlet connected to said source of fresh air, and an air outlet connected to a primary cooling exchanger (PHx) housed in said dynamic air duct; an air cycle turbomachine (14) comprising at least a first compressor (15) and a first turbine (17) that are mechanically coupled to one another, said first compressor comprising an air inlet that can be connected either to said primary cooling exchanger (PHx) or to said source (11) of fresh air, and an air outlet connected to a main cooling exchanger (MHx) housed in said dynamic air duct, said first turbine (17) comprising an air inlet that can be connected either to a discharge port (54) for discharging stale air from said cabin or to said main cooling exchanger (MHx), and an air outlet that can be connected either to said cabin (10) or to an air injector (52) opening into said dynamic air duct.
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公开(公告)号：US20240136553A1
公开(公告)日：2024-04-25
申请号：US18278554
申请日：2022-02-22
Applicant: LIEBHERR-AEROSPACE TOULOUSE SAS
Inventor： Karine PRINCE , David LAVERGNE , Cyril VAUCORET
IPC: H01M8/04746 , H01M8/04082 , H01M8/0432 , H01M8/0438
CPC classification number: H01M8/04753 , H01M8/04201 , H01M8/04335 , H01M8/04395
Abstract: The invention relates to a supply device for compressed air to a plurality of cathodes (100a-100d) of a fuel cell system, characterized in that it comprises a motorized compressor (12) configured to provide a source of compressed air to all of the cathodes (100a-100d), a group of ducts configured to conduct the compressed air to each cathode (100a-100d), for each cathode (100a-100d), a proportioning valve (20a-20d) upstream or downstream of said cathode (100a-100d) which is configured to regulate the flow rate of compressed air passing through said cathode (100a-100d), anti-pumping protection means (30, 32) configured to allow the flow of a minimum flow rate of compressed air leaving the compressor (12), and a control device (24) configured to control the speed of the compressor (12) and the opening or closing of each proportioning valve (20a-20d) and/or the operation of the anti-pumping protection means (30, 32).
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公开(公告)号：US11958618B2
公开(公告)日：2024-04-16
申请号：US17435515
申请日：2020-02-27
Applicant: LIEBHERR-AEROSPACE TOULOUSE SAS
Inventor： Guillaume Galzin , Jean-Raymond Blary , David Lavergne
CPC classification number: B64D13/08 , B64D2013/0618 , B64D2013/0648 , B64D2013/0674
Abstract: Exchanger (16) for cooling hot primary air by means of cold secondary air, comprising: a plurality of channels (80) for the circulation of the secondary air; and a plurality of channels for the circulation of the primary air, characterized in that said exchanger further comprises: water circulation channels (83) each extending adjacently to a secondary channel (80); water-spray micro-perforated hollow bars (63) each extending adjacently to a primary channel (60) and fluidically connected to the micro-perforated hollow bars in order to be able to heat the water by interaction with the primary air before said water is sprayed into the flow of primary air at the inlet of the exchanger.
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Patent Agency Ranking
公开(公告)号：US11912417B2
公开(公告)日：2024-02-27
申请号：US17629915
申请日：2020-07-24
Applicant: LIEBHERR-AEROSPACE TOULOUSE SAS
Inventor： Guillaume Galzin , Cedric Boye
CPC classification number: B64D13/08 , F25B9/004 , B64D2013/0618 , B64D2013/0644 , B64D2013/0648 , B64D2013/0662 , B64D2013/0688
Abstract: Air conditioning system for an aircraft cabin, comprising a primary exchanger (14) configured to cool bleed air (12) from at least one compressor of the aircraft, a pre-compressor (18), an intermediate exchanger (20), a main compressor (22) configured to compress said pre-compressed bleed air, a main exchanger (28) configured to cool the compressed bleed air, and a water extraction loop, characterized in that it comprises a duct (108) for recovering at least part of the air from the cabin after it has passed through the cabin, and recovered air circulation ducts configured so that the recovered air successively passes through:
a secondary exchanger (34), the recovered air forming a first cold source for cooling the bleed air again,
a heat exchanger (20), the recovered air forming a second cold source for cooling the bleed air,
an energy recovery turbine (48), the recovered air forming a source of energy.-
公开(公告)号：US20230002063A1
公开(公告)日：2023-01-05
申请号：US17778391
申请日：2020-11-18
Applicant: LIEBHERR-AEROSPACE TOULOUSE SAS
Inventor： GUILLAUME GALZIN , Adrien BONHOMME , Frédéric SANCHEZ
IPC: B64D13/06
Abstract: The invention relates to an air conditioning system for a cabin (10) of an aircraft (80) comprising: a bleed air source (12); a ram-air circulation channel (13); a network of pipes and control valves; an air cycle turbine engine comprising at least one compressor (3) and a power turbine (4) which are mechanically connected to one another; and at least one primary cooling exchanger (PHX) which is accommodated in said channel (13), characterized in that said pipe network comprises a thermal power pipe (53) which is suitable for being able to fluidically connect, upon control of at least one control valve (25, 21), said air outlet (4b) of said power turbine (4) and said ram-air circulation channel (13) upstream of said primary exchanger (PHX) so that said bleed air expanded by said power turbine (4) can form a thermal energy source for said ram air being supplied to said primary circuit of said primary exchanger (PHX).
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公开(公告)号：US20220261018A1
公开(公告)日：2022-08-18
申请号：US17619105
申请日：2020-06-12
Applicant: LIEBHERR-AEROSPACE TOULOUSE SAS
Inventor： Jean-Luc MANCHO , David LOSSOUARN , Antoine PEYRE
Abstract: The invention relates to a regulator, configured to receive a stream of hot air carrying pneumatic power via an air inlet (12), to treat this hot air and to send the treated hot air to an air outlet (14) configured 5 to supply a pneumatic actuator (16), comprising a reference pressure source and an air expansion device comprising a diaphragm (22), the diaphragm (22) being configured to control the flow rate of the hot air stream by comparing the pressure of said hot air stream with the reference pressure of the reference pressure source. The regulator is characterized in that it 10 comprises an air intake (24) configured to receive a cold source, and a pipe (25) for guiding the cold source to the diaphragm (22), so that the cold source forms the reference pressure source and a source for cooling the diaphragm (22).
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公开(公告)号：US20220242579A1
公开(公告)日：2022-08-04
申请号：US17639821
申请日：2020-09-02
Applicant: LIEBHERR-AEROSPACE TOULOUSE SAS
Inventor： Lamia Dreibine , Luc Xenard , Jérôme Jacquart
Abstract: Heat exchanger of an air-conditioning system of a cabin of a transport vehicle, comprising: a primary circuit supplied by a first air flow (169), a secondary circuit supplied by a second air flow (168), a casing (161) defining an air-circulation enclosure (162), a primary circuit inlet box (164) allowing entry into said air-circulation enclosure, and a primary circuit outlet box (165) allowing exit from the air-circulation enclosure, characterized in that said inlet box (164) is mounted removably on said casing (161), and in that it houses a three-dimensional structure (163) forming a catalytic and/or adsorbent support for treating the air of said primary circuit, and a means for distributing said first air flow into said heat-exchange matrix.
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公开(公告)号：US20220235973A1
公开(公告)日：2022-07-28
申请号：US17639838
申请日：2020-09-02
Applicant: LIEBHERR-AEROSPACE TOULOUSE SAS
Inventor： Mickael Bregoli , Arnaud Caron , Viviane Ciais
IPC: F25B1/053
Abstract: Air conditioning system for a cabin of an air or rail transport vehicle, comprising: a pneumatic turbine engine that comprises at least one compressor and at least one turbine (126) and is connected by a mechanical shaft extending along an axis, referred to as the turbine engine axis (132), said turbine comprising an air inlet and an air outlet; and a water extraction loop that comprises a heater (110), a condenser (112) and a water separator (114), is fluidically arranged between an air outlet of the compressor and the air inlet of said turbine (126), and is configured to dry the air supplied to said turbine (126), characterized in that said heater (110), said condenser (112), and said water separator (114) are arranged in series on the turbine engine axis (132) or around said axis, forming the air inlet of said turbine (126).
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