FR2378176A1 - Conduit insonorise, en particulier pour echappement de moteurs thermiques - Google Patents

Conduit insonorise, en particulier pour echappement de moteurs thermiques

Info

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
Application number
FR7701415A
Other languages
English (en)
Other versions
FR2378176B1 (fr
Inventor
Gras Noel
Francois
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bertin Technologies SAS
Original Assignee
Bertin et Cie SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bertin et Cie SA filed Critical Bertin et Cie SA
Priority to FR7701415A priority Critical patent/FR2378176A1/fr
Publication of FR2378176A1 publication Critical patent/FR2378176A1/fr
Application granted granted Critical
Publication of FR2378176B1 publication Critical patent/FR2378176B1/fr
Granted legal-status Critical Current

Links

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.
FR7701415A 1977-01-19 1977-01-19 Conduit insonorise, en particulier pour echappement de moteurs thermiques Granted FR2378176A1 (fr)

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)

* Cited by examiner, † Cited by third party
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

Cited By (15)

* Cited by examiner, † Cited by third party
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

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