GB1201096A - Air particle separator - Google Patents
Air particle separatorInfo
- Publication number
- GB1201096A GB1201096A GB47826/67A GB4782667A GB1201096A GB 1201096 A GB1201096 A GB 1201096A GB 47826/67 A GB47826/67 A GB 47826/67A GB 4782667 A GB4782667 A GB 4782667A GB 1201096 A GB1201096 A GB 1201096A
- Authority
- GB
- United Kingdom
- Prior art keywords
- separator
- air
- inlet
- passageway
- door
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D33/00—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for
- B64D33/02—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
- F02B61/04—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
- F02C7/05—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for obviating the penetration of damaging objects or particles
- F02C7/052—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for obviating the penetration of damaging objects or particles with dust-separation devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/022—Air cleaners acting by gravity, by centrifugal, or by other inertial forces, e.g. with moistened walls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/08—Air cleaners with means for removing dust, particles or liquids from cleaners; with means for indicating clogging; with by-pass means; Regeneration of cleaners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D33/00—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for
- B64D33/02—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes
- B64D2033/0246—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes comprising particle separators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Abstract
1,201,096. Centrifugal separators; Air filters, UNITED AIRCRAFT CORP. 20 Oct., 1967 [15 Nov., 1966 (2)], No. 47826/67. Headings B2P and BIT. [Also in Division F1] A separator for removing foreign particles from air entering the inlet of an aircraft, e.g. helicopter, engine comprises a plurality of filter panels joined together to form a passageway for connection to the engine inlet, each panel consisting of spaced walls defining a chamber in which are mounted a number of centrifugal separator tube members communicating with the atmosphere, the chamber and the passageway, the chamber being provided with scavenge means for removing particles separated from the air after its passage through the separator tube members. As shown in Fig. 1, two separators 24, 26 are supported by mounts 28, 30 on an helicopter fuselage 12 in front of engines 20, 22 which may be of the turbine type. Alternatively, a single separator, Fig. 3 (not shown), may be provided for both engines. Each separator, Figs. 2 and 4, consists of a number of filter panels, such as 32, 34, which are joined together to define a central passageway 66 which is in communication with the respective engine inlet. A filter panel may be used at the front of the separator but preferably, as shown in Fig. 2, a by-pass door 36 having a pair of swivelling door members is mounted in an aperture 38 at the front of the separator and is operated by means of cable 160 or 162 Fig. 1, connected to a swivelling door actuating member 131 and to a handle 164 in the pilot's cabin 18 whereby the passage of air to the engine either directly through the aperture 38 and the passageway 66 or via the filter panels and the passageway may be controlled. A presure probe unit 262, Fig. 4, is mounted in passageway 66 and is connected to a presure gauge 265 and a warning light in the pilot's cabin to indicate whether the flow in passageway 66 is normal or is reduced due to filter blockage. Each filter panel comprises outer and inner walls 44, 46, defining between them a chamber 64, Fig. 6, forming part of a scavenge duct 50 and in which are mounted centrifugal separator tube members 42. An outer coarse filter screen member 40 covers the outer wall 44 of each panel. Alternatively, Fig. 18 (not shown), a moulded screen insert is mounted in the inlet of each separator tube. Each tube, Fig. 6, has swirl vanes 72 and communicates with the chamber 64 through an annular passage 74 for the discharge of dirty air containing separated particles and with the central passageway 66 through a hollow member 70 for the discharge of clean air. The scavenge duct 50 is connected through ducting 56 to blowers 52, 54 which may be operated by electric motors or, as shown in Fig. 1, by compressed air bled from the engine 20 and fed through line 270, pilot-operated solenoid valve 272 and lines 274, 276. A pressure indicator which may communicate a signal to the cockpit is mounted in the duct 50. The separator includes or is attached rearwardly to a member 114 which is sealingly mounted in the engine inlet 112 by means of a plastics seal member allowing axial or circumferential relative motion between the separator and the engine inlet. In another arrangement, Fig. 5 (not shown), an inflatable seal is provided between the inlet 112 and the member 114, inflation or deflation of the seal being controlled by the pilot for blocking or allowing air flow through the space betwen the inlet and the member. In the separator of Fig. 3 (not shown) the by-pass door is constituted by a single member hinged about a pivot arm actuated from a pilot-operated motor through rack and pinion. In another modification, Fig. 15 (not shown), the by-pass door is of the venetian-blind type. In Fig. 11, the separator has outer and inner cylindrical walls defining between them a single chamber 64 which constitutes the scavenge duct communicating with the blower 52. A screen member 40 surrounds the tube separators which are canted to the separator axis and through which the air is directed by means of cowl flaps 172 pivotably actuated by the pilot through a manually operated lever or through a motor. A by-pass door 203 having overlappable sections 205, 207 is actuated through gearing 199 by a pilot-operated motor 211. Hot-air de-icing of the centrifugal separator tubes is provided by directing air through a duct 190 which communicates with the chamber 64 and in which is mounted an auxiliary blower 55 and a heater 200. The latter may be eliminated if the duct 190 is connected to the compressor section of the engine 20. In a modification, Fig. 9 (not shown), the deicing equipment is dispensed with and a different type of pivotable single member door is provided. In Fig. 14, the separator 24 is movable with respect to the inlet of engine 20 by means of a pilot-operated hydraulic cylinder-piston mechanism 204, pivotable link members 210, 212 being connected between the separator and the fuselage 12. A pivotable by-pass door is shown at 60. In the position shown, with by-pass door 60 closed, during flight the air enters the engine through the gap 202 travelling in a circuitous path with right angle turns whereby large particles, such as ice particles, get separated from the air before it enters the engine inlet. In the position wherein the separator is sealingly engaged with the engine inlet by means of a seal ring 200 and the door 60 is open ram air enters the passageway 66 and hence the engine inlet directly and no de-icing takes place. In another embodiment, Figs. 16 and 17 not shown, the separator is of D-shaped crosssection made up of a number of jointed arcuate double-walled panels. The cross-sectional area of the filter increases from the inlet to a certain point along its length and then decreases towards the outlet. In Fig. 21, a separator for use with an annular engine inlet 112 has, in addition to the outer and inner walls 44, 46, a third wall 312 defining with the wall 46 the ram-air passageway 66, the inlet opening of which is controlled by an annular by-pass door 340 mounted on bracket members 342 and actuable by fluid power cylinders 344. A fourth wall 314 defines a cooling air passageway 330 whereby ram air during forward motion of the aircraft is directed over engine or aircraft accessories 320 in a cooling chamber 322 and then released to atmosphere through an outlet 324. When the aircraft is stationary cooling air is drawn in by a blower 326. In a further embodiment, Figs. 22-24 (not shown), a separator axially adjustable with respect to the engine inlet is dome-shaped being made up of a number of sealably joined, arcuate segments. In a still further embodiment Fig. 26 (not shown), two filter panels acting as a by-pass door are pivotably mounted in the passageway 66 so as to form in the blocking position a V-shaped dam across the passageway. An ice deflector is removably positioned in front of the separator inlet. In other modifications of the separator, Figs. 27-29 (not shown), a by-pass aperture is fabricated into a side panel of the separator and may be controlled by (a) an axially slidable door; (b) a door made up of upwardly and downward pivotable door members; or (c) a single-member pivotable door opening towards the inlet of the separator. Further modifications including pivotable side or top panels to provide by-pass apertures for the air and pivotable separator back wall members are described.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US59454166A | 1966-11-15 | 1966-11-15 | |
US59442866A | 1966-11-15 | 1966-11-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1201096A true GB1201096A (en) | 1970-08-05 |
Family
ID=27081970
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB47826/67A Expired GB1201096A (en) | 1966-11-15 | 1967-10-20 | Air particle separator |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE1626147C3 (en) |
FR (1) | FR1548724A (en) |
GB (1) | GB1201096A (en) |
Cited By (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2136312A (en) * | 1983-03-17 | 1984-09-19 | Premaberg | Coalescer |
FR2554172A1 (en) * | 1983-10-26 | 1985-05-03 | Agusta Aeronaut Costr | AIR INTAKE FILTER FOR AIRCRAFT ENGINES, PARTICULARLY FOR HELICOPTER ENGINES |
GB2257752A (en) * | 1991-07-19 | 1993-01-20 | British Aerospace | Gas turbine inlet particle separator. |
GB2260917A (en) * | 1991-11-01 | 1993-05-05 | Pall Corp | Automatic vent system |
GB2287895A (en) * | 1993-11-16 | 1995-10-04 | Rolls Royce Plc | Particle separation |
EP1874626A2 (en) * | 2005-04-13 | 2008-01-09 | Sikorsky Aircraft Corporation | Integrated engine air particle filter assembly |
EP1893862A2 (en) * | 2005-06-20 | 2008-03-05 | Rolls-Royce North American Technologies, Inc. | Particle separators for a gas turbine engines |
EP2133265A1 (en) * | 2008-06-10 | 2009-12-16 | Agusta S.p.A. | Helicopter |
US8015787B2 (en) | 2005-06-20 | 2011-09-13 | Rolls-Royce Corporation | Clustered inlet particle separator |
WO2012071271A1 (en) * | 2010-11-22 | 2012-05-31 | Florida Power & Light Company | Systems and methods for air intake filter assemblies |
EP2549078A1 (en) * | 2011-07-21 | 2013-01-23 | Siemens Aktiengesellschaft | Suction duct for intake air of a gas turbine and method for operating a stationary gas turbine |
WO2013103416A3 (en) * | 2011-10-17 | 2013-08-29 | Aerospace Filtration Systems, Inc. | Filter systems for air intakes of aircraft engines and related methods |
US20150096627A1 (en) * | 2013-10-08 | 2015-04-09 | Bell Helicopter Textron Inc. | Engine mounted inlet plenum for a rotorcraft |
WO2015055948A1 (en) * | 2013-10-17 | 2015-04-23 | Snecma | Turboprop air intake |
WO2014200590A3 (en) * | 2013-03-15 | 2015-05-07 | Aerospace Filtration Systems, Inc. | Interchangeable inlet protection systems for air intakes of aircraft engines and related methods |
US9046056B2 (en) | 2008-12-26 | 2015-06-02 | Rolls-Royce North American Technologies, Inc. | Inlet particle separator system for a gas turbine engine |
EP2937288A1 (en) * | 2014-04-25 | 2015-10-28 | Hamilton Sundstrand Corporation | Inlet tube design |
EP2677140A3 (en) * | 2012-06-18 | 2016-12-21 | Hamilton Sundstrand Corporation | Conical light fod momentum particle separator protector |
ITUB20152299A1 (en) * | 2015-07-20 | 2017-01-20 | Bmc Srl | PROPELLER OF AN AIRCRAFT INCLUDING AN INTAKE PIPELINE PROVIDED WITH AN AIR FILTER AND BYPASS OPENING OF THE AIR FILTER |
EP3121414A1 (en) * | 2015-07-20 | 2017-01-25 | Bmc S.R.L. | Aircraft engine comprising an intake pipe provided with an openable air filter |
US20180215478A1 (en) * | 2017-01-27 | 2018-08-02 | General Electric Company Polska sp. z o.o | Inlet screen for aircraft engines |
EP3392144A1 (en) | 2017-04-21 | 2018-10-24 | Bmc S.R.L. | Air intake unit for an aircraft engine and provided with an air filter and with an air filter bypass duct |
EP3418183A1 (en) * | 2017-06-19 | 2018-12-26 | Bell Helicopter Textron Inc. | Two position cowling assembly for single person operation |
WO2019094765A1 (en) * | 2017-11-10 | 2019-05-16 | Donaldson Company, Inc. | Airflow control system and methods thereof |
EP3560837A1 (en) * | 2018-04-26 | 2019-10-30 | Bell Helicopter Textron Inc. | Passive particle separation system |
CN111120656A (en) * | 2019-12-25 | 2020-05-08 | 中国航空工业集团公司西安飞机设计研究所 | Fireproof sealing structure for air inlet channel |
IT202000008230A1 (en) | 2020-04-17 | 2021-10-17 | Bmc Srl | AIR INTAKE UNIT FOR A VEHICLE ENGINE AND EQUIPPED WITH AN OPENABLE AIR FILTER |
US20220356841A1 (en) * | 2021-05-06 | 2022-11-10 | Textron Innovations Inc. | Aircraft Air Intake Systems Employing Gills |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3921906A (en) * | 1974-12-02 | 1975-11-25 | Gen Electric | Infrared suppression system for a gas turbine engine |
US4158449A (en) * | 1976-12-07 | 1979-06-19 | Pall Corporation | Inlet air cleaner assembly for turbine engines |
GB2044359B (en) * | 1979-03-16 | 1982-10-27 | Rolls Royce | Gas turbine engine air intakes |
FR2642662B1 (en) * | 1989-02-09 | 1992-04-30 | Abg Semca | DEVICE AND METHOD FOR SEPARATING SOLID PARTICLES PRESENT IN A GAS AND APPARATUS COMPRISING SUCH A DEVICE |
FR2952401B1 (en) | 2009-11-12 | 2011-11-11 | Eurocopter France | AIR INTAKE OF AN AIRCRAFT TURBOMOTOR, AIRCRAFT PROVIDED WITH SUCH AIR INTAKE AND METHOD FOR OPTIMIZING THE OPERATION OF A TURBOMOTEUR OF AN AIRCRAFT USING AN AIR INTAKE |
EP2957503B1 (en) | 2014-06-19 | 2016-08-17 | AIRBUS HELICOPTERS DEUTSCHLAND GmbH | Aircraft with two engines having by-pass air inlet openings and bleed air outlets as well as engine for an aircraft |
CN110794881B (en) * | 2018-08-03 | 2023-12-19 | 星崎美国公司 | Ultrasonic tank control in ice making machine |
US11506438B2 (en) | 2018-08-03 | 2022-11-22 | Hoshizaki America, Inc. | Ice machine |
-
1967
- 1967-10-20 GB GB47826/67A patent/GB1201096A/en not_active Expired
- 1967-11-10 DE DE1626147A patent/DE1626147C3/en not_active Expired
- 1967-11-14 FR FR1548724D patent/FR1548724A/fr not_active Expired
Cited By (61)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2136312A (en) * | 1983-03-17 | 1984-09-19 | Premaberg | Coalescer |
FR2554172A1 (en) * | 1983-10-26 | 1985-05-03 | Agusta Aeronaut Costr | AIR INTAKE FILTER FOR AIRCRAFT ENGINES, PARTICULARLY FOR HELICOPTER ENGINES |
GB2148749A (en) * | 1983-10-26 | 1985-06-05 | Agusta Aeronaut Costr | Air intake for aircraft engines |
GB2257752A (en) * | 1991-07-19 | 1993-01-20 | British Aerospace | Gas turbine inlet particle separator. |
GB2260917A (en) * | 1991-11-01 | 1993-05-05 | Pall Corp | Automatic vent system |
GB2260917B (en) * | 1991-11-01 | 1995-05-03 | Pall Corp | Containments including nuclear reactors |
ES2070683A2 (en) * | 1991-11-01 | 1995-06-01 | Pall Corp | Automatic vent system |
GB2287895A (en) * | 1993-11-16 | 1995-10-04 | Rolls Royce Plc | Particle separation |
US5498273A (en) * | 1993-11-16 | 1996-03-12 | Rolls-Royce, Plc | Particle separation |
GB2287895B (en) * | 1993-11-16 | 1997-09-10 | Rolls Royce Plc | Improvements in or relating to particle separation |
EP1874626A4 (en) * | 2005-04-13 | 2010-10-27 | Sikorsky Aircraft Corp | Integrated engine air particle filter assembly |
EP1874626A2 (en) * | 2005-04-13 | 2008-01-09 | Sikorsky Aircraft Corporation | Integrated engine air particle filter assembly |
US8015787B2 (en) | 2005-06-20 | 2011-09-13 | Rolls-Royce Corporation | Clustered inlet particle separator |
EP1893862A4 (en) * | 2005-06-20 | 2010-12-01 | Rolls Royce North American Tec | Particle separators for gas turbine engines |
EP1893862A2 (en) * | 2005-06-20 | 2008-03-05 | Rolls-Royce North American Technologies, Inc. | Particle separators for a gas turbine engines |
US8663350B2 (en) | 2005-06-20 | 2014-03-04 | Rolls-Royce North American Technologies, Inc. | Clustered inlet particle separator |
RU2499736C2 (en) * | 2008-06-10 | 2013-11-27 | Агуста С.П.А. | Helicopter |
EP2133265A1 (en) * | 2008-06-10 | 2009-12-16 | Agusta S.p.A. | Helicopter |
US8113461B2 (en) | 2008-06-10 | 2012-02-14 | Agusta S.P.A. | Helicopter |
CN101612991A (en) * | 2008-06-10 | 2009-12-30 | 阿古斯塔公司 | Autogyro |
CN101612991B (en) * | 2008-06-10 | 2013-05-22 | 阿古斯塔公司 | Helicopter |
US9046056B2 (en) | 2008-12-26 | 2015-06-02 | Rolls-Royce North American Technologies, Inc. | Inlet particle separator system for a gas turbine engine |
WO2012071271A1 (en) * | 2010-11-22 | 2012-05-31 | Florida Power & Light Company | Systems and methods for air intake filter assemblies |
WO2013010935A1 (en) * | 2011-07-21 | 2013-01-24 | Siemens Aktiengesellschaft | Method for operating a static gas turbine, and intake duct for intake air of a gas turbine |
CN103703228A (en) * | 2011-07-21 | 2014-04-02 | 西门子公司 | Method for operating a static gas turbine, and intake duct for intake air of a gas turbine |
AU2012285962B2 (en) * | 2011-07-21 | 2017-02-02 | Siemens Aktiengesellschaft | Method for operating a static gas turbine, and intake duct for intake air of a gas turbine |
EP2549078A1 (en) * | 2011-07-21 | 2013-01-23 | Siemens Aktiengesellschaft | Suction duct for intake air of a gas turbine and method for operating a stationary gas turbine |
RU2576407C2 (en) * | 2011-07-21 | 2016-03-10 | Сименс Акциенгезелльшафт | Method of operation of fixed gas turbine plant and suction channel for sucked air of gas turbine plant |
US9447756B2 (en) | 2011-07-21 | 2016-09-20 | Siemens Aktiengesellschaft | Method for operating a static gas turbine, and intake duct for intake air of a gas turbine |
WO2013103416A3 (en) * | 2011-10-17 | 2013-08-29 | Aerospace Filtration Systems, Inc. | Filter systems for air intakes of aircraft engines and related methods |
US8961634B2 (en) | 2011-10-17 | 2015-02-24 | Aerospace Filtration Systems, Inc. | Filter systems for air intakes of aircraft engines and related methods |
EA029974B1 (en) * | 2011-10-17 | 2018-06-29 | Эреспейс Филтрейшн Системс, Инк. | Filter system for an air intake of an aircraft engine, aircraft comprising same and method of retrofitting a filter system for an air intake of an aircraft engine |
EP2677140A3 (en) * | 2012-06-18 | 2016-12-21 | Hamilton Sundstrand Corporation | Conical light fod momentum particle separator protector |
WO2014200590A3 (en) * | 2013-03-15 | 2015-05-07 | Aerospace Filtration Systems, Inc. | Interchangeable inlet protection systems for air intakes of aircraft engines and related methods |
US20150096627A1 (en) * | 2013-10-08 | 2015-04-09 | Bell Helicopter Textron Inc. | Engine mounted inlet plenum for a rotorcraft |
US9574497B2 (en) * | 2013-10-08 | 2017-02-21 | Bell Helicopter Textron Inc. | Engine mounted inlet plenum for a rotorcraft |
WO2015055948A1 (en) * | 2013-10-17 | 2015-04-23 | Snecma | Turboprop air intake |
FR3012174A1 (en) * | 2013-10-17 | 2015-04-24 | Snecma | AIR INTAKE OF TURBOPROPULSEUR |
US10428733B2 (en) | 2013-10-17 | 2019-10-01 | Snecma | Turboprop air intake |
EP2937288A1 (en) * | 2014-04-25 | 2015-10-28 | Hamilton Sundstrand Corporation | Inlet tube design |
US9759236B2 (en) | 2014-04-25 | 2017-09-12 | Hamilton Sundstrand Corporation | Inlet tube design |
US10641294B2 (en) | 2014-04-25 | 2020-05-05 | Hamilton Sundstrand Corporation | Inlet tube design |
EP3121416A1 (en) | 2015-07-20 | 2017-01-25 | Bmc S.R.L. | Aircraft engine comprising an intake pipe provided with an air filter and an air filter bypass opening |
EP3121414A1 (en) * | 2015-07-20 | 2017-01-25 | Bmc S.R.L. | Aircraft engine comprising an intake pipe provided with an openable air filter |
ITUB20152299A1 (en) * | 2015-07-20 | 2017-01-20 | Bmc Srl | PROPELLER OF AN AIRCRAFT INCLUDING AN INTAKE PIPELINE PROVIDED WITH AN AIR FILTER AND BYPASS OPENING OF THE AIR FILTER |
US20180215478A1 (en) * | 2017-01-27 | 2018-08-02 | General Electric Company Polska sp. z o.o | Inlet screen for aircraft engines |
US11084599B2 (en) * | 2017-01-27 | 2021-08-10 | General Electric Company Polska sp. z o.o | Inlet screen for aircraft engines |
EP3392144A1 (en) | 2017-04-21 | 2018-10-24 | Bmc S.R.L. | Air intake unit for an aircraft engine and provided with an air filter and with an air filter bypass duct |
EP3418183A1 (en) * | 2017-06-19 | 2018-12-26 | Bell Helicopter Textron Inc. | Two position cowling assembly for single person operation |
US10723472B2 (en) | 2017-06-19 | 2020-07-28 | Bell Helicopter Textron Inc. | Two position cowling assembly for single person operation |
WO2019094765A1 (en) * | 2017-11-10 | 2019-05-16 | Donaldson Company, Inc. | Airflow control system and methods thereof |
US11359544B2 (en) | 2017-11-10 | 2022-06-14 | Donaldson Company, Inc. | Airflow control system and methods thereof |
US11378007B2 (en) | 2017-11-10 | 2022-07-05 | Donaldson Company, Inc. | Airflow control system and methods thereof |
EP4074606A1 (en) * | 2017-11-10 | 2022-10-19 | Donaldson Company, Inc. | Airflow control system and methods thereof |
US11873760B2 (en) | 2017-11-10 | 2024-01-16 | Donaldson Company, Inc. | Airflow control system and methods thereof |
US10836504B2 (en) | 2018-04-26 | 2020-11-17 | Textron Innovations Inc. | Passive particle separation system |
EP3560837A1 (en) * | 2018-04-26 | 2019-10-30 | Bell Helicopter Textron Inc. | Passive particle separation system |
CN111120656A (en) * | 2019-12-25 | 2020-05-08 | 中国航空工业集团公司西安飞机设计研究所 | Fireproof sealing structure for air inlet channel |
IT202000008230A1 (en) | 2020-04-17 | 2021-10-17 | Bmc Srl | AIR INTAKE UNIT FOR A VEHICLE ENGINE AND EQUIPPED WITH AN OPENABLE AIR FILTER |
US20220356841A1 (en) * | 2021-05-06 | 2022-11-10 | Textron Innovations Inc. | Aircraft Air Intake Systems Employing Gills |
US11643968B2 (en) * | 2021-05-06 | 2023-05-09 | Textron Innovations Inc. | Aircraft air intake systems employing gills |
Also Published As
Publication number | Publication date |
---|---|
DE1626147B2 (en) | 1974-06-27 |
DE1626147A1 (en) | 1972-01-27 |
FR1548724A (en) | 1968-12-06 |
DE1626147C3 (en) | 1975-02-13 |
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PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |