PL2949903T3 - Element do pochłaniania dźwięku - Google Patents
Element do pochłaniania dźwiękuInfo
- Publication number
- PL2949903T3 PL2949903T3 PL15154124T PL15154124T PL2949903T3 PL 2949903 T3 PL2949903 T3 PL 2949903T3 PL 15154124 T PL15154124 T PL 15154124T PL 15154124 T PL15154124 T PL 15154124T PL 2949903 T3 PL2949903 T3 PL 2949903T3
- Authority
- PL
- Poland
- Prior art keywords
- sound absorption
- sound
- absorption
- Prior art date
Links
- 238000010521 absorption reaction Methods 0.000 title 1
Classifications
-
- 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
- F02C7/045—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for noise suppression
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
- F02K1/78—Other construction of jet pipes
- F02K1/82—Jet pipe walls, e.g. liners
- F02K1/827—Sound absorbing structures or liners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/96—Preventing, counteracting or reducing vibration or noise
- F05B2260/962—Preventing, counteracting or reducing vibration or noise by means creating "anti-noise"
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000108A ITTO20120108A1 (it) | 2012-02-09 | 2012-02-09 | Elemento per l'assorbimento acustico, in particolare destinato ad essere montato su componenti di aeromobili, quali gondole motore. |
EP15154124.0A EP2949903B1 (en) | 2012-02-09 | 2012-12-03 | Element for sound absorption |
EP12195230.3A EP2631450B1 (en) | 2012-02-09 | 2012-12-03 | Element for sound absorption in aircrafts nacelles. |
Publications (1)
Publication Number | Publication Date |
---|---|
PL2949903T3 true PL2949903T3 (pl) | 2019-04-30 |
Family
ID=46001452
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PL12195230T PL2631450T3 (pl) | 2012-02-09 | 2012-12-03 | Element do pochłaniania dźwięku w gondolach samolotów |
PL15154124T PL2949903T3 (pl) | 2012-02-09 | 2012-12-03 | Element do pochłaniania dźwięku |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PL12195230T PL2631450T3 (pl) | 2012-02-09 | 2012-12-03 | Element do pochłaniania dźwięku w gondolach samolotów |
Country Status (4)
Country | Link |
---|---|
EP (2) | EP2949903B1 (pl) |
ES (2) | ES2543582T3 (pl) |
IT (1) | ITTO20120108A1 (pl) |
PL (2) | PL2631450T3 (pl) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109462928B (zh) * | 2018-12-29 | 2021-06-29 | 哈尔滨工业大学 | 一种高频激励放电中心等离子体与侧面等离子体协同抑制燃烧压力脉动的方法 |
CN109724107B (zh) * | 2018-12-29 | 2021-04-23 | 哈尔滨工业大学 | 一种高频激励放电侧面等离子体抑制燃烧压力脉动的方法 |
IT202100017474A1 (it) | 2021-07-02 | 2023-01-02 | Leonardo Spa | Procedimento di fabbricazione di un nucleo per pannello fonoassorbente con struttura a sandwich per la riduzione del rumore in un aeromobile |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5702230A (en) * | 1996-01-29 | 1997-12-30 | General Electric Company | Actively controlled acoustic treatment panel |
US5966452A (en) * | 1997-03-07 | 1999-10-12 | American Technology Corporation | Sound reduction method and system for jet engines |
US7334394B2 (en) * | 2003-09-02 | 2008-02-26 | The Ohio State University | Localized arc filament plasma actuators for noise mitigation and mixing enhancement |
US20090025393A1 (en) * | 2006-10-31 | 2009-01-29 | Karl Edward Sheldon | Auxiliary power unit assembly |
DE102007032600A1 (de) * | 2007-07-11 | 2009-01-15 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Vorrichtung und Verfahren zur Verbesserung der Dämpfung von akustischen Wellen |
US8453457B2 (en) * | 2009-08-26 | 2013-06-04 | Lockheed Martin Corporation | Nozzle plasma flow control utilizing dielectric barrier discharge plasma actuators |
-
2012
- 2012-02-09 IT IT000108A patent/ITTO20120108A1/it unknown
- 2012-12-03 ES ES12195230.3T patent/ES2543582T3/es active Active
- 2012-12-03 PL PL12195230T patent/PL2631450T3/pl unknown
- 2012-12-03 ES ES15154124T patent/ES2710012T3/es active Active
- 2012-12-03 EP EP15154124.0A patent/EP2949903B1/en active Active
- 2012-12-03 EP EP12195230.3A patent/EP2631450B1/en active Active
- 2012-12-03 PL PL15154124T patent/PL2949903T3/pl unknown
Also Published As
Publication number | Publication date |
---|---|
EP2949903B1 (en) | 2018-11-14 |
ES2543582T3 (es) | 2015-08-20 |
PL2631450T3 (pl) | 2016-01-29 |
EP2631450B1 (en) | 2015-03-25 |
ITTO20120108A1 (it) | 2013-08-10 |
EP2631450A1 (en) | 2013-08-28 |
ES2710012T3 (es) | 2019-04-22 |
EP2949903A1 (en) | 2015-12-02 |
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