EP0337877A1 - Schalldämpfer für Explosionsmotoren - Google Patents

Schalldämpfer für Explosionsmotoren Download PDF

Info

Publication number: EP0337877A1
Authority: EP; European Patent Office
Prior art keywords: shells; silencer; internal; housed; composite material
Prior art date: 1988-04-12
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

EP89400996A

Other languages

English (en)

French (fr)

Other versions

EP0337877B1 (de

Inventor

Pierre Roubinet

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.)

Renault SA

Original Assignee

Renault SA

Regie Nationale des Usines Renault

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.)

1988-04-12

Filing date

1989-04-11

Publication date

1989-10-18

1989-04-11 Application filed by Renault SA, Regie Nationale des Usines Renault filed Critical Renault SA

1989-10-18 Publication of EP0337877A1 publication Critical patent/EP0337877A1/de

1992-05-13 Application granted granted Critical

1992-05-13 Publication of EP0337877B1 publication Critical patent/EP0337877B1/de

2009-04-11 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1872—Construction facilitating manufacture, assembly, or disassembly the assembly using stamp-formed parts or otherwise deformed sheet-metal
- F01N13/1877—Construction facilitating manufacture, assembly, or disassembly the assembly using stamp-formed parts or otherwise deformed sheet-metal the channels or tubes thereof being made integrally with the housing
- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series
- F01N13/0097—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series the purifying devices are arranged in a single housing
- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features
- F01N13/16—Selection of particular 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1861—Construction facilitating manufacture, assembly, or disassembly the assembly using parts formed by casting or moulding
- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features
- F01N13/14—Exhaust or silencing apparatus characterised by constructional features having thermal insulation
- 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
- F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
- F01N2450/24—Methods or apparatus for fitting, inserting or repairing different elements by bolts, screws, rivets 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
- F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
- F01N2450/30—Removable or rechangeable blocks or cartridges, e.g. for filters
- 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
- F01N2470/00—Structure or shape of exhaust gas passages, pipes or tubes
- F01N2470/02—Tubes being perforated
- 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
- F01N2530/00—Selection of materials for tubes, chambers or housings
- F01N2530/18—Plastics material, e.g. polyester resin
- F01N2530/20—Plastics material, e.g. polyester resin reinforced with mineral or metallic fibres
- 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
- F01N2530/00—Selection of materials for tubes, chambers or housings
- F01N2530/26—Multi-layered walls

Definitions

the present invention relates to a silencer for an internal combustion engine consisting of an internal gas channeling circuit housed in an outer casing.
the present invention relates to a new design of exhaust silencers and to the development of new composite materials having good heat resistance.
the design of the silencer provides good thermal insulation so that the temperature of the enclosure remains limited.
the design of the enclosure provides good thermal insulation which allows the internal circuit to rise faster and higher in temperature (therefore less condensate) and good sound insulation.
the silencer according to the invention is characterized in that the gas circuit includes insulating flanges which are housed in the half-shells and partitions which are supported on the half-shells made of composite material and having on the outside cooling ribs.
the silencer has an internal gas circuit consisting of a metal tube 1 forming a baffle and two partitions 2. This circuit is made of steel protected against internal corrosion. It is integral with two insulating flanges 3 made of refractory material placed on the two ends of the tube 1.
This circuit is wrapped in an external envelope formed by two half-shells 4 of composite material in the form of glass-polyester prepreg or glass-phenolic prepreg. Insulating shims 5 made of refractory cardboard are placed in the half-shells 4 in line with the partitions 2.
the assembly is carried out in such a way that the half-shells 4 are not in direct contact with the metallic central circuit, as indicated in FIG. 2 which is a longitudinal half-section of the assembled silencer.
Two metal rings 6 fixed on the tube 1 make it possible to correctly position the insulating washers 3.
the flanges 3 engage in grooves housed in the caps 41 of the half-shells.
the flanges 3 have an outwardly curved shape, which makes it possible to lengthen the distance between the connections on the hot tube 1 (inlet and outlet) which are outside the envelope.
Washers 9 made of refractory fibers can be placed inside the steel flanges 3 so as to reduce heat exchanges with the hot gases circulating inside the silencer.
the two half-shells are assembled together by screws, collars or rivets 7 with the interposition of a silicone seal 8 as shown in Figure 3 which is a half cross-section in the assembly area.
the assembly elements of the two half-shells can come from molding. For example, these assembly elements can act by clipping.
the half-shells 4 can be compression molded, by placing on the press punch a cloth of verranne and a blank of prepreg.
Closing the press ensures complete filling of the mold, including the imprints of the ribs arranged in the die.
the molds are heated to a constant temperature between 100 and 200 ° C (150 ° C in the present example), the polymerization is thus carried out between one and two minutes depending on the thickness of the part to be molded and the reactivity of the resin used.
the half-shells thus molded have the particularity of presenting on their internal face a layer of unimpregnated verranne fabric 14 (see FIG. 4) forming a certain thermal insulation, and of presenting on their external face cooling ribs 42 obtained from molding .
the insulation of the internal face can be increased by the presence of a layer of glass wool or rock as it already exists in many metallic silencers to attenuate the sound emission.
the internal insulation layer may be missing.
the polyester resin constituting the main part of the matrix is calcined on a small thickness of the internal face of the envelope.
the glass fiber thus exposed remains in place, thus forming an insulating layer which stops the progression of the calcination of the matrix. It is therefore sufficient to provide the ablative allowance at the time of design.
the shell is made with a composite material comprising glass fibers, pulverulent fillers and an organic matrix.
the arrangement and distribution of the constituents is such that heat exchanges are favored towards the outside and reduced towards the inside so that the temperature of the shell does not exceed 200 ° C.
the prepreg is made with an impregnation paste and it comprises 27% glass by weight in the form of rovings cut to 25 and / or 50 mm in length, and this prepreg can be easily manufactured using the machine described in patent 74/12176 of the applicant.
the prepreg intended for molding the half-shells is manufactured on the same machine as previously but by incorporating hollow glass microspheres in the impregnation paste supplying the upper coating, while the lower coating is supplied with a dough without microspheres.
microspheres for example those corresponding to the reference B37 / 2000 of the company 3M, have a particle size greater than 50 ⁇ m and are thus filtered by the sheet of cut glass fibers.
microspheres therefore form an insulating layer on top of the prepreg.
the molding of the half-shells is thus carried out by placing the face of the prepreg filled with hollow microspheres on the punch side, with or without the interposition of verranne fabric.

Landscapes

Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Combustion & Propulsion (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Exhaust Silencers (AREA)

EP19890400996 1988-04-12 1989-04-11 Schalldämpfer für Explosionsmotoren Expired - Lifetime EP0337877B1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR8804810A FR2629864B1 (fr)	1988-04-12	1988-04-12	Silencieux pour moteur a explosion
FR8804810		1988-04-12

Publications (2)

Publication Number	Publication Date
EP0337877A1 true EP0337877A1 (de)	1989-10-18
EP0337877B1 EP0337877B1 (de)	1992-05-13

Family

ID=9365218

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19890400996 Expired - Lifetime EP0337877B1 (de)	1988-04-12	1989-04-11	Schalldämpfer für Explosionsmotoren

Country Status (4)

Country	Link
EP (1)	EP0337877B1 (de)
DE (1)	DE68901487D1 (de)
ES (1)	ES2031374T3 (de)
FR (1)	FR2629864B1 (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1992008881A1 (en) *	1990-11-09	1992-05-29	Ab Volvo	Motor vehicle muffler
EP0563843A1 (de) *	1992-03-31	1993-10-06	MARMITTE ZARA S.p.A.	Verfahren zum Herstellen eines Kraftwagenschalldämpfers und danach hergestellter Schalldämpfer
EP0884456A3 (de) *	1997-06-13	1999-06-16	Jean-Claude Philippron	Schalldämpfer
EP1253302A1 (de) *	2001-04-27	2002-10-30	J. Eberspächer GmbH Co. KG	Abgasschalldämpfer
WO2007120680A1 (en) *	2006-04-12	2007-10-25	Ocv Intellectual Capital, Llc	Long fiber thermoplastic composite muffler system with integrated crash management
JP2010513772A (ja) *	2006-12-14	2010-04-30	オーシーヴィーインテレクチュアルキャピタルリミテッドライアビリティカンパニー	一体的な反射チャンバを備えた長繊維熱可塑性複合材マフラーシステム
DE102010041666A1 (de) *	2010-09-29	2012-05-03	Röchling Automotive AG & Co. KG	Kfz-Abgasführungsvorrichtung mit einem Funktionsgehäuse und einem Abgas-Kanal
EP2639423A1 (de) *	2012-03-15	2013-09-18	J. Eberspächer GmbH & Co. KG	Schalldämpfer-Einheit
CN104963745A (zh) *	2015-06-01	2015-10-07	上海佛吉亚红湖排气系统有限公司	一种汽车消声器消声棉填充开口工艺
WO2022163274A1 (ja) *	2021-01-26	2022-08-04	三恵技研工業株式会社	排気構造体

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1332071B1 (de)	2000-11-07	2008-09-10	Owens Corning	Stossstangen / schalldämpferanordnung
RU2235892C2 (ru) *	2002-10-21	2004-09-10	Открытое акционерное общество "Завод им. В.А. Дегтярева"	Глушитель шума выпуска
US7934580B2 (en)	2006-04-12	2011-05-03	Ocv Intellectual Capital, Llc	Long fiber thermoplastic composite muffler system
CN105332780A (zh) *	2015-10-29	2016-02-17	安徽助成信息科技有限公司	一种排气消音器用隔热罩

Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1129287A (en) *	1964-10-12	1968-10-02	Walker Mfg Co	An exhaust system conduit for an internal combustion engine
DE2323264A1 (de) *	1973-05-09	1974-11-21	Volkswagenwerk Ag	Abgasschalldaempfer fuer brennkraftmaschinen
EP0057142A2 (de) *	1981-01-23	1982-08-04	Industeler S.A.	Schalldämpfer aus korrosionsbeständigem Material für einen Kraftfahrzeugauspufftopf
GB2129490A (en) *	1982-10-26	1984-05-16	Alan William Richards	Corrosion resistant exhaust silencers
GB2143275A (en) *	1983-07-02	1985-02-06	Production Eng Res	Silencer for exhaust gases
US4589516A (en) *	1984-02-20	1986-05-20	Honda Giken Kogyo Kabushiki Kaisha	Muffler for internal combustion engines

1988
- 1988-04-12 FR FR8804810A patent/FR2629864B1/fr not_active Expired - Lifetime
1989
- 1989-04-11 ES ES89400996T patent/ES2031374T3/es not_active Expired - Lifetime
- 1989-04-11 DE DE8989400996T patent/DE68901487D1/de not_active Expired - Lifetime
- 1989-04-11 EP EP19890400996 patent/EP0337877B1/de not_active Expired - Lifetime

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1129287A (en) *	1964-10-12	1968-10-02	Walker Mfg Co	An exhaust system conduit for an internal combustion engine
DE2323264A1 (de) *	1973-05-09	1974-11-21	Volkswagenwerk Ag	Abgasschalldaempfer fuer brennkraftmaschinen
EP0057142A2 (de) *	1981-01-23	1982-08-04	Industeler S.A.	Schalldämpfer aus korrosionsbeständigem Material für einen Kraftfahrzeugauspufftopf
GB2129490A (en) *	1982-10-26	1984-05-16	Alan William Richards	Corrosion resistant exhaust silencers
GB2143275A (en) *	1983-07-02	1985-02-06	Production Eng Res	Silencer for exhaust gases
US4589516A (en) *	1984-02-20	1986-05-20	Honda Giken Kogyo Kabushiki Kaisha	Muffler for internal combustion engines

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1992008881A1 (en) *	1990-11-09	1992-05-29	Ab Volvo	Motor vehicle muffler
US5332873A (en) *	1990-11-09	1994-07-26	Ab Volvo	Motor vehicle muffler
EP0563843A1 (de) *	1992-03-31	1993-10-06	MARMITTE ZARA S.p.A.	Verfahren zum Herstellen eines Kraftwagenschalldämpfers und danach hergestellter Schalldämpfer
EP0884456A3 (de) *	1997-06-13	1999-06-16	Jean-Claude Philippron	Schalldämpfer
EP1253302A1 (de) *	2001-04-27	2002-10-30	J. Eberspächer GmbH Co. KG	Abgasschalldämpfer
WO2007120680A1 (en) *	2006-04-12	2007-10-25	Ocv Intellectual Capital, Llc	Long fiber thermoplastic composite muffler system with integrated crash management
JP2009533601A (ja) *	2006-04-12	2009-09-17	オーシーヴィーインテレクチュアルキャピタルリミテッドライアビリティカンパニー	一体衝突マネージメントを有する長繊維熱可塑性樹脂複合マフラーシステム
US7730996B2 (en)	2006-04-12	2010-06-08	Ocv Intellectual Capital, Llc	Long fiber thermoplastic composite muffler system with integrated crash management
JP2010513772A (ja) *	2006-12-14	2010-04-30	オーシーヴィーインテレクチュアルキャピタルリミテッドライアビリティカンパニー	一体的な反射チャンバを備えた長繊維熱可塑性複合材マフラーシステム
DE102010041666A1 (de) *	2010-09-29	2012-05-03	Röchling Automotive AG & Co. KG	Kfz-Abgasführungsvorrichtung mit einem Funktionsgehäuse und einem Abgas-Kanal
EP2639423A1 (de) *	2012-03-15	2013-09-18	J. Eberspächer GmbH & Co. KG	Schalldämpfer-Einheit
DE102012204114A1 (de) *	2012-03-15	2013-09-19	Eberspächer Exhaust Technology GmbH & Co. KG	Schalldämpfer-Einheit
JP2013194736A (ja) *	2012-03-15	2013-09-30	Eberspaecher Exhaust Technology Gmbh & Co Kg	消音装置
CN103410597A (zh) *	2012-03-15	2013-11-27	J·埃贝斯佩歇合资公司	消音器单元
US8939254B2 (en)	2012-03-15	2015-01-27	Eberspächer Exhaust Technology GmbH & Co. KG	Muffler unit
DE102012204114B4 (de) *	2012-03-15	2015-03-26	Eberspächer Exhaust Technology GmbH & Co. KG	Schalldämpfer-Einheit
EP2639423B1 (de)	2012-03-15	2016-06-22	Eberspächer Exhaust Technology GmbH & Co. KG	Schalldämpfer-einheit
CN103410597B (zh) *	2012-03-15	2016-12-28	埃贝斯佩歇废气技术合资公司	消音器单元及用于机动车的排气系统
CN104963745A (zh) *	2015-06-01	2015-10-07	上海佛吉亚红湖排气系统有限公司	一种汽车消声器消声棉填充开口工艺
CN104963745B (zh) *	2015-06-01	2018-02-06	上海佛吉亚红湖排气系统有限公司	一种汽车消声器消声棉填充开口工艺
WO2022163274A1 (ja) *	2021-01-26	2022-08-04	三恵技研工業株式会社	排気構造体
JP2022114401A (ja) *	2021-01-26	2022-08-05	三恵技研工業株式会社	排気構造体
JP7453736B2 (ja)	2021-01-26	2024-03-21	三恵技研工業株式会社	排気構造体

Also Published As

Publication number	Publication date
FR2629864B1 (fr)	1991-03-01
EP0337877B1 (de)	1992-05-13
ES2031374T3 (es)	1992-12-01
DE68901487D1 (de)	1992-06-17
FR2629864A1 (fr)	1989-10-13

Legal Events

Date	Code	Title	Description
1989-09-02	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1989-10-18	17P	Request for examination filed	Effective date: 19890414
1989-10-18	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): DE ES GB IT
1991-04-17	17Q	First examination report despatched	Effective date: 19910305
1992-03-27	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1992-05-13	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): DE ES GB IT
1992-05-19	ITF	It: translation for a ep patent filed
1992-06-17	REF	Corresponds to:	Ref document number: 68901487 Country of ref document: DE Date of ref document: 19920617
1992-07-01	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
1992-12-01	REG	Reference to a national code	Ref country code: ES Ref legal event code: FG2A Ref document number: 2031374 Country of ref document: ES Kind code of ref document: T3
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1994-03-18	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 19940318 Year of fee payment: 6
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1995-04-12	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19950412
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2005-04-11	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050411

Publication	Publication Date	Title
EP0337877B1 (de)	1992-05-13	Schalldämpfer für Explosionsmotoren
EP0397566B1 (de)	1992-11-04	Hitzebeständige Struktur für einen Nachbrenner oder für ein Gasturbinenzwischenstück
EP0210103B1 (de)	1989-12-20	Auspuffanlage für Kraftfahrzeuge und dergleichen
FR3026134B1 (fr)	2019-07-19	Dispositif pour la fixation d’une entree d’air sur un carter de soufflante d’une nacelle de turboreacteur d’aeronef
EP2318683A2 (de)	2011-05-11	Schalldämpfungsplatte für luftfahrzeugmotorgondel
US5603297A (en)	1997-02-18	Heat Shield
FR2817911A1 (fr)	2002-06-14	Turbocompresseur a gaz d'echappement avec boitier en tole
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