FR2378176A1 - Conduit insonorise, en particulier pour echappement de moteurs thermiques - Google Patents
Conduit insonorise, en particulier pour echappement de moteurs thermiquesInfo
- Publication number
- FR2378176A1 FR2378176A1 FR7701415A FR7701415A FR2378176A1 FR 2378176 A1 FR2378176 A1 FR 2378176A1 FR 7701415 A FR7701415 A FR 7701415A FR 7701415 A FR7701415 A FR 7701415A FR 2378176 A1 FR2378176 A1 FR 2378176A1
- Authority
- FR
- France
- Prior art keywords
- blunt
- gas turbine
- entry
- straight section
- turbine exhaust
- 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.)
- Granted
Links
- 230000003584 silencer Effects 0.000 title abstract 3
- 239000011358 absorbing material Substances 0.000 abstract 3
- 238000010276 construction Methods 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
- F01N1/04—Silencing apparatus characterised by method of silencing by using resonance having sound-absorbing materials in resonance chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/30—Exhaust heads, chambers, or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/085—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using a central core throttling gas passage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/10—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling in combination with sound-absorbing materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2490/00—Structure, disposition or shape of gas-chambers
- F01N2490/20—Chambers being formed inside the exhaust pipe without enlargement of the cross section of the pipe, e.g. resonance chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/96—Preventing, counteracting or reducing vibration or noise
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Exhaust Silencers (AREA)
Abstract
L'invention se situe dans le secteur des moteurs à combustion en général et dans le secteur de l'acoustique. L'invention est caractérisée par la combinaison d'un premier conduit à section croissante, relié à l'échappement du moteur, avec un second conduit contenant un bulbe profilé coaxial, ledit conduit et ledit bulbe comportant des dispositifs absorbants et résonnants et l'ensemble conduit-bulbe étant dimensionné pour ne pas augmenter la perte de charge. La structure des élements évite toute circulation intérieure des gaz chauds et permet la dilatation de ces divers éléments sans opposer de contraintes. L'invention s'applique à l'insonorisation de l'échappement des moteurs thermiques de grande puissance.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7701415A FR2378176A1 (fr) | 1977-01-19 | 1977-01-19 | Conduit insonorise, en particulier pour echappement de moteurs thermiques |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7701415A FR2378176A1 (fr) | 1977-01-19 | 1977-01-19 | Conduit insonorise, en particulier pour echappement de moteurs thermiques |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2378176A1 true FR2378176A1 (fr) | 1978-08-18 |
FR2378176B1 FR2378176B1 (fr) | 1981-09-18 |
Family
ID=9185659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7701415A Granted FR2378176A1 (fr) | 1977-01-19 | 1977-01-19 | Conduit insonorise, en particulier pour echappement de moteurs thermiques |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2378176A1 (fr) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2588614A1 (fr) * | 1985-10-16 | 1987-04-17 | Nuovo Pignone Spa | Silencieux d'echappement pour turbine a gaz de forte puissance. |
WO1997016628A2 (fr) * | 1995-10-31 | 1997-05-09 | Siemens Aktiengesellschaft | Element de transition entre des elements constitutifs du canal de gaz brules d'une turbine a gaz |
EP0819842A1 (fr) * | 1996-07-15 | 1998-01-21 | Siemens Aktiengesellschaft | Dispositif de fixation pour des panneaux de revêtement d'un canal pour les gaz d'échappement d'une turbine à gaz |
US6062814A (en) * | 1995-10-31 | 2000-05-16 | Siemens Aktiengesellschaft | Transition element between components of a flue-gas duct of a gas turbine |
EP1213538A3 (fr) * | 2000-12-08 | 2002-07-31 | ABB Turbo Systems AG | Dispositif pour gaz d'échappement comprenant un résonateur de Helmholtz |
FR2844303A1 (fr) * | 2002-09-10 | 2004-03-12 | Airbus France | Piece tubulaire d'attenuation acoustique pour entree d'air de reacteur d'aeronef |
FR2854427A1 (fr) * | 2003-04-29 | 2004-11-05 | Mig Production | Silencieux pour gaz d'echappement de moteurs a combustion interne. |
GB2528950A (en) * | 2014-08-06 | 2016-02-10 | Aaf Ltd | Sound suppression apparatus |
CN114961140A (zh) * | 2022-05-25 | 2022-08-30 | 黄淮学院 | 倒置式种植屋面防水找坡层排汽通道及其施工工艺 |
-
1977
- 1977-01-19 FR FR7701415A patent/FR2378176A1/fr active Granted
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2588614A1 (fr) * | 1985-10-16 | 1987-04-17 | Nuovo Pignone Spa | Silencieux d'echappement pour turbine a gaz de forte puissance. |
WO1997016628A2 (fr) * | 1995-10-31 | 1997-05-09 | Siemens Aktiengesellschaft | Element de transition entre des elements constitutifs du canal de gaz brules d'une turbine a gaz |
WO1997016628A3 (fr) * | 1995-10-31 | 1997-07-03 | Siemens Ag | Element de transition entre des elements constitutifs du canal de gaz brules d'une turbine a gaz |
US6062814A (en) * | 1995-10-31 | 2000-05-16 | Siemens Aktiengesellschaft | Transition element between components of a flue-gas duct of a gas turbine |
EP0819842A1 (fr) * | 1996-07-15 | 1998-01-21 | Siemens Aktiengesellschaft | Dispositif de fixation pour des panneaux de revêtement d'un canal pour les gaz d'échappement d'une turbine à gaz |
US6705428B2 (en) | 2000-12-08 | 2004-03-16 | Abb Turbo Systems Ag | Exhaust gas system with helmholtz resonator |
EP1213538A3 (fr) * | 2000-12-08 | 2002-07-31 | ABB Turbo Systems AG | Dispositif pour gaz d'échappement comprenant un résonateur de Helmholtz |
FR2844303A1 (fr) * | 2002-09-10 | 2004-03-12 | Airbus France | Piece tubulaire d'attenuation acoustique pour entree d'air de reacteur d'aeronef |
EP1398472A1 (fr) * | 2002-09-10 | 2004-03-17 | AIRBUS France | Piece tubulaire d'atténuation acoustique pour entrée d'air de réacteur d'aéronef |
US6761245B2 (en) | 2002-09-10 | 2004-07-13 | Airbus France | Tubular acoustic attenuation piece for an aircraft jet engine air intake |
FR2854427A1 (fr) * | 2003-04-29 | 2004-11-05 | Mig Production | Silencieux pour gaz d'echappement de moteurs a combustion interne. |
GB2528950A (en) * | 2014-08-06 | 2016-02-10 | Aaf Ltd | Sound suppression apparatus |
US10458589B2 (en) | 2014-08-06 | 2019-10-29 | Aaf Ltd. | Sound suppression apparatus |
CN114961140A (zh) * | 2022-05-25 | 2022-08-30 | 黄淮学院 | 倒置式种植屋面防水找坡层排汽通道及其施工工艺 |
CN114961140B (zh) * | 2022-05-25 | 2024-02-09 | 黄淮学院 | 倒置式种植屋面防水找坡层排汽通道及其施工工艺 |
Also Published As
Publication number | Publication date |
---|---|
FR2378176B1 (fr) | 1981-09-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1466512A (en) | Gas stream silencer | |
US4747467A (en) | Turbine engine noise suppression apparatus and methods | |
FR2378176A1 (fr) | Conduit insonorise, en particulier pour echappement de moteurs thermiques | |
US4143739A (en) | Concentric pass-type muffler construction | |
GB1358539A (en) | Silencing apparatus | |
US2995200A (en) | Exhaust muffler for engines | |
US4113048A (en) | Method of and device for attenuating the noise radiated by gas jets | |
GB1044262A (en) | Improvements in silencers for burner installations operating with pulsating combustion | |
ES339022A1 (es) | Un dispositivo de absorcion de sonido. | |
GB678344A (en) | Improvements in silencers | |
GB1099612A (en) | Silencer for internal combustion engines | |
GB1057954A (en) | Improvements relating to heating installations | |
GB242743A (en) | Improvements in silencers for internal combustion engines | |
GB831776A (en) | Jet engine noise attenuator | |
GB1039525A (en) | Improvements in and relating to silencers for exhaust gases | |
US4196793A (en) | Method of and device for attenuating the noise radiated by gas jets | |
GB2017211A (en) | Engine Exhaust Silencer | |
FR2232976A5 (en) | Exhaust gas pipe sound damping - by incasing apertured pipe to define tortous gas path through coaxial cylinder walls | |
US3196978A (en) | Gas silencer having gas flow ducts defined by tubular rings within a casing | |
GB1419781A (en) | Exhaust silencers | |
SU476367A1 (ru) | Глушитель шума газового потока | |
SU798334A1 (ru) | Глушитель шума | |
GB781290A (en) | Improvements in or relating to exhaust silencers for internal combustion engines | |
GB989345A (en) | Improvements in or relating to mufflers or silencers for the exhaust gases of internal combustion engines | |
SU381801A1 (ru) | ЙОЬСи^ОЗНАЯnAFEhTho-iLASJ^iHtlHsiij |