FR2457981A1 - Couvercle reducteur de bruits pour moteur a combustion interne - Google Patents
Couvercle reducteur de bruits pour moteur a combustion interneInfo
- Publication number
- FR2457981A1 FR2457981A1 FR8012224A FR8012224A FR2457981A1 FR 2457981 A1 FR2457981 A1 FR 2457981A1 FR 8012224 A FR8012224 A FR 8012224A FR 8012224 A FR8012224 A FR 8012224A FR 2457981 A1 FR2457981 A1 FR 2457981A1
- Authority
- FR
- France
- Prior art keywords
- combustion engine
- internal combustion
- noise reducing
- cover
- cylinder head
- 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.)
- Withdrawn
Links
- 238000002485 combustion reaction Methods 0.000 title abstract 3
- 239000000463 material Substances 0.000 abstract 4
- 239000011152 fibreglass Substances 0.000 abstract 2
- 230000001413 cellular effect Effects 0.000 abstract 1
- 229920002635 polyurethane Polymers 0.000 abstract 1
- 239000004814 polyurethane Substances 0.000 abstract 1
- 239000002344 surface layer Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/245—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a non-planar shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/0004—Oilsumps
-
- 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
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/11—Thermal or acoustic insulation
- F02B77/13—Acoustic insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/006—Camshaft or pushrod housings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/0278—Polyurethane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/10—Properties of the layers or laminate having particular acoustical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/56—Damping, energy absorption
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
- F05C2225/02—Rubber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
- F05C2225/08—Thermoplastics
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
COUVERCLE REDUCTEUR DE BRUITS POUR MOTEUR A COMBUSTION INTERNE. CE COUVERCLE REDUCTEUR DE BRUITS PREND LA FORME D'UN COUVERCLE DE CULASSE 10 MONTE SUR UNE CULASSE 12 DE MOTEUR A COMBUSTION INTERNE. IL EST CONSTITUE D'UN CORPS 16 EN MATERIAU DE POLYURETHANE CELLULAIRE, ET IL COMPORTE DEUX COUCHES SUPERFICIELLES EXTERIEURES 18 ET 20 D'UN MATERIAU EN FIBRES DE VERRE PRESSEES A CHAUD SUR LE CORPS 16. CE COUVERCLE COMPREND DES RENFORCEMENTS STRUCTURAUX AUX POINTS DE CONTRAINTES, DES TROUS DE FIXATION 25 ET DES DISPOSITIFS D'ACCES, EN MATERIAU A FIBRES DE VERRE OU EN UN TROISIEME MATERIAU STRUCTURAL. APPLICATIONS, NOTAMMENT AUX COUVERCLES DE CULASSES, AUX CARTERS D'HUILE, AUX COUVERCLES DE PARTIES EN CREUX, AUX CACHE-POUSSOIRS ET AUX ORGANES ANALOGUES.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6821479A JPS55161941A (en) | 1979-06-02 | 1979-06-02 | Cylinder head cover |
JP6821579A JPS55161942A (en) | 1979-06-02 | 1979-06-02 | Oil pan |
JP8544679U JPS564643U (fr) | 1979-06-23 | 1979-06-23 | |
JP8544579U JPS564642U (fr) | 1979-06-23 | 1979-06-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2457981A1 true FR2457981A1 (fr) | 1980-12-26 |
Family
ID=27464958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8012224A Withdrawn FR2457981A1 (fr) | 1979-06-02 | 1980-06-02 | Couvercle reducteur de bruits pour moteur a combustion interne |
Country Status (4)
Country | Link |
---|---|
US (1) | US4522165A (fr) |
DE (1) | DE3020818A1 (fr) |
FR (1) | FR2457981A1 (fr) |
GB (1) | GB2052388A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1984004355A1 (fr) * | 1983-04-23 | 1984-11-08 | Perkins Engines Group | Capot de machine |
Families Citing this family (69)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3024630C2 (de) * | 1980-06-30 | 1984-06-14 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8500 Nürnberg | Gehäuseteil an Verbrennungskraftmaschinen wie Ölwanne o.dgl. |
JPS57157752A (en) * | 1981-03-26 | 1982-09-29 | Nissan Motor | Every kind of cover for engine and their manufacture |
JPS5812658U (ja) * | 1981-07-16 | 1983-01-26 | 日産自動車株式会社 | ロツカ−カバ− |
IT8252918V0 (it) * | 1982-02-11 | 1982-02-11 | Fiat Auto Spa | Apparato per la produzione combinata di energia elettrica e di calore |
DE3241205A1 (de) * | 1982-11-08 | 1984-05-10 | Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt | Zylinderkopfhaube eines verbrennungsmotors |
US4611687A (en) * | 1985-07-23 | 1986-09-16 | Nixon Michael T | Three-function acoustical panel |
US4667628A (en) * | 1986-03-06 | 1987-05-26 | General Motors Corporation | Oil pan isolation mounting and seal |
DE3616636A1 (de) * | 1986-05-16 | 1987-11-19 | Porsche Ag | Luftgekuehlte mehrzylinder-brennkraftmaschine |
USRE33575E (en) * | 1987-12-17 | 1991-04-23 | Caterpillar Inc. | Internal combustion engine noise reduction plate |
US4771747A (en) * | 1987-12-17 | 1988-09-20 | Caterpillar Inc. | Internal combustion engine noise reduction plate |
US4821699A (en) * | 1988-02-08 | 1989-04-18 | Alan Mackin | Pressure distribution device for valve cover |
DE3831308C1 (fr) * | 1988-09-15 | 1990-01-18 | Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart, De | |
DE3838250C1 (fr) * | 1988-11-11 | 1990-01-18 | Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart, De | |
DE4027242A1 (de) * | 1990-08-29 | 1992-03-05 | Winter Fritz Eisengiesserei | Zylinderblock fuer kraftfahrzeugmotoren |
US5095860A (en) * | 1991-06-24 | 1992-03-17 | Newell Bobby T | Engine valve cover apparatus |
US5255647A (en) * | 1993-02-08 | 1993-10-26 | Freudenberg-Nok General Partnership | Elastomeric grommet-fastener assembly |
US5375569A (en) * | 1994-01-26 | 1994-12-27 | General Electric Company | Multi polymer structures for internal combustion engines |
US5452693A (en) * | 1994-12-09 | 1995-09-26 | Cummins Engine Company, Inc. | Oil pan noise enclosure and attachment system for same |
DE19518279A1 (de) * | 1995-05-18 | 1996-11-21 | Diehl Remscheid Gmbh & Co | Abdeckhaube für Gehäuse |
US6082084A (en) | 1995-11-13 | 2000-07-04 | Ransomes America Corporation | Electric riding mower with electric steering system |
US5636607A (en) * | 1996-06-28 | 1997-06-10 | Basf Corporation | Plastic valve cover with integral noise shield |
FR2752769B1 (fr) * | 1996-08-27 | 1998-12-04 | Peugeot | Panneau composite renforce notamment pour l'ancrage d'une piece, vehicule automobile equipe de ce panneau et son procede de fabrication |
US6085709A (en) * | 1998-12-10 | 2000-07-11 | Detroit Diesel Corporation | Engine rocker arm cover having reduced noise transmission |
EP1020846B1 (fr) * | 1999-01-14 | 2018-09-19 | Nichias Corporation | Structure d'absorption du son |
JP2001050022A (ja) | 1999-08-04 | 2001-02-23 | Pacific Ind Co Ltd | エンジンのオイルパン及びそのオイルパンの成形装置 |
US6234136B1 (en) | 2000-02-22 | 2001-05-22 | Ford Global Technologies, Inc. | Noise reducing oil pan for automotive engine |
US6371073B1 (en) * | 2000-11-02 | 2002-04-16 | Caterpillar Inc. | Isolated cover with independent sealing system |
DE10113175C2 (de) * | 2001-03-19 | 2003-09-18 | Federal Mogul Sealing Sys Spa | Gehäuseverschlußdeckel mit Dichtung |
US6543404B2 (en) * | 2001-04-04 | 2003-04-08 | Dow Global Technologies, Inc. | Adhesively bonded engine intake manifold assembly |
DE10119892C2 (de) * | 2001-04-24 | 2003-04-03 | Skf Ab | Deckel, insbesondere zur Dämpfung des Geräusches eines Verbrennungsmotors |
US6376951B1 (en) | 2001-05-14 | 2002-04-23 | Tampa Armature Works, Inc. | Cover for marine generators |
US6716520B2 (en) * | 2001-07-03 | 2004-04-06 | Cook, Ii Elmer L. | Structural reflective insulating material for ducts and other purposes |
DE20111662U1 (de) * | 2001-07-13 | 2001-10-04 | Benien Produktionstechnik Gmbh | Akustikabdeckung für zumindest einen Teil eines Verbrennungsmotors, insbesondere eine Motorölwanne |
US6520134B1 (en) * | 2001-10-11 | 2003-02-18 | Dana Corporation | Screen printable foam coating for sealing and vibration isolation of cam cover baffles |
US6598581B2 (en) * | 2001-12-13 | 2003-07-29 | Visteon Global Technologies, Inc. | Metallic coating on a component of an internal combustion engine |
DE10201763A1 (de) * | 2002-01-18 | 2003-08-07 | Bayer Ag | Akustisches Abschirmelement |
US6860010B2 (en) * | 2002-05-15 | 2005-03-01 | Dow Global Technologies, Inc. | Method of forming an automotive valve cover with integral positive crankcase ventilation |
DE10253832A1 (de) * | 2002-11-18 | 2004-05-27 | Carcoustics Tech Center Gmbh | Schallisolierender Hitzeschutzschild |
JP4040486B2 (ja) * | 2003-02-10 | 2008-01-30 | トヨタ自動車株式会社 | 発泡樹脂製オイルパン及びその製造方法 |
DE10317305B4 (de) * | 2003-04-14 | 2006-04-13 | Carcoustics Tech Center Gmbh | Abdeckung für ein Aggregat im Motorraum eines Kraftfahrzeuges |
US7360519B2 (en) * | 2003-07-10 | 2008-04-22 | Dow Global Technologies, Inc. | Engine intake manifold assembly |
US7191792B2 (en) * | 2003-09-19 | 2007-03-20 | Ingersoll-Rand Company | Compressor assembly |
DE102004007602B4 (de) * | 2004-02-17 | 2014-06-18 | Volkswagen Ag | Abdeckung für einen Verbrennungsmotor eines Kraftfahrzeugs |
FR2868502B1 (fr) * | 2004-03-30 | 2006-05-19 | Rhodia Chimie Sa | Carter insonorise permettant l absorption des ondes a coustiques. |
US7168227B2 (en) * | 2004-05-21 | 2007-01-30 | Textron Inc. | Internal combustion engine traction drive with electric cutting unit drive for walking greens mower |
US7255079B2 (en) * | 2004-10-18 | 2007-08-14 | Federal-Mogul World Wide, Inc. | Flanged cover assembly with flange pressure distribution compensator |
US7837147B2 (en) | 2005-03-18 | 2010-11-23 | The Boeing Company | Systems and methods for reducing noise in aircraft fuselages and other structures |
US7392869B2 (en) * | 2005-11-01 | 2008-07-01 | Textron Inc. | Modular power source for riding mower |
US9511571B2 (en) * | 2007-01-23 | 2016-12-06 | The Boeing Company | Composite laminate having a damping interlayer and method of making the same |
US7854293B2 (en) | 2007-02-20 | 2010-12-21 | Textron Innovations Inc. | Steering operated by linear electric device |
DE102007063254A1 (de) * | 2007-12-31 | 2009-07-02 | Mahle International Gmbh | Zylinderkopfhaube |
US8521384B2 (en) * | 2008-01-28 | 2013-08-27 | Textron Innovations Inc. | Turf maintenance vehicle all-wheel drive system |
FR2934013B1 (fr) * | 2008-07-16 | 2011-12-09 | Mann & Hummel Gmbh | Procede permettant d'attenuer les bruits generes par une piece du moteur d'un vehicule automobile |
US8794203B2 (en) * | 2008-11-05 | 2014-08-05 | Ford Global Technologies, Llc | Valve cover with decoupled NVH isolation and sealing features |
US8425710B2 (en) * | 2009-03-13 | 2013-04-23 | The Boeing Company | Automated placement of vibration damping materials |
JP5432244B2 (ja) * | 2009-10-27 | 2014-03-05 | 東海ゴム工業株式会社 | 防音カバー及びその製造方法 |
US20110116940A1 (en) * | 2009-11-17 | 2011-05-19 | Cameron International Corporation | Viscoelastic compressor pulsation dampener |
GB2479766A (en) * | 2010-04-21 | 2011-10-26 | Gm Global Tech Operations Inc | Flexible sound absorbing cover for a noise-generating container |
CN102947134B (zh) * | 2010-06-16 | 2015-09-02 | 夏伊洛工业公司 | 面板组件以及形成面板组件的方法 |
FI123375B (fi) * | 2011-04-13 | 2013-03-15 | Waertsilae Finland Oy | Räjähdyksen varoventtiili |
CN103573328B (zh) * | 2013-11-19 | 2017-01-18 | 浙江吉利汽车研究院有限公司 | 一种汽车发动机的油底壳 |
DE102014201507A1 (de) * | 2014-01-28 | 2015-07-30 | Wobben Properties Gmbh | Windenergieanlage mit einer Faserwicklung |
CN104863746B (zh) * | 2015-04-13 | 2018-03-13 | 合肥恒信汽车发动机部件制造有限公司 | 一种能降低发动机噪音的塑料气门室罩盖及其降低噪音的方法 |
CN105345455B (zh) * | 2015-09-23 | 2018-01-23 | 重庆坤恩机电技术有限公司 | 气缸罩全自动装配检测生产线 |
US10072541B2 (en) | 2017-01-04 | 2018-09-11 | GM Global Technology Operations LLC | Oil pan assembly |
US10563552B2 (en) | 2017-06-14 | 2020-02-18 | GM Global Technology Operations LLC | Oil pan assembly |
CN108691688B (zh) * | 2018-06-29 | 2024-02-13 | 江苏科彤车业科技有限公司 | 一种多层降噪发动机引擎盖罩 |
JP7072543B2 (ja) * | 2019-07-12 | 2022-05-20 | 本田技研工業株式会社 | 防振ユニット取付構造 |
DE102021209850A1 (de) | 2021-09-07 | 2023-03-09 | Mahle International Gmbh | Zylinderkopfhaube oder Haubenmodul |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1232631A (fr) * | 1958-07-26 | 1960-10-11 | Heinrich Lanz Ag | Dispositif amortisseur de bruits pour moteurs à combustion interne à un ou plusieurs cylindres |
FR2097774A5 (fr) * | 1970-05-09 | 1972-03-03 | Teroson Gmbh | |
FR2150939A1 (en) * | 1971-09-03 | 1973-04-13 | Sulzer Ag | Moulded plastics shell - with woodchippings esp for vehicle bodywork |
FR2279545A1 (fr) * | 1974-07-26 | 1976-02-20 | British Uralite Ltd | Materiau insonorisant |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2052232A5 (fr) * | 1969-07-30 | 1971-04-09 | Normandie Const Meca | |
GB1306807A (en) * | 1969-11-28 | 1973-02-14 | Lambert Bros Walsall Ltd | Lined tanks |
GB1400447A (en) * | 1971-08-13 | 1975-07-16 | Tac Construction Materials Ltd | Insulating structures |
JPS5828235B2 (ja) * | 1974-09-20 | 1983-06-14 | ニホンソフランカコウ カブシキガイシヤ | ボウネツソウノケイセイホウホウ |
DE2735153A1 (de) * | 1977-08-04 | 1979-02-15 | Helmut Pelzer | Spezifisch leichtes feder-masse- system in bekannter weise als doppelmatte ausgebildet |
-
1980
- 1980-06-02 DE DE19803020818 patent/DE3020818A1/de not_active Withdrawn
- 1980-06-02 FR FR8012224A patent/FR2457981A1/fr not_active Withdrawn
- 1980-06-02 GB GB8017953A patent/GB2052388A/en not_active Withdrawn
-
1983
- 1983-07-25 US US06/516,982 patent/US4522165A/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1232631A (fr) * | 1958-07-26 | 1960-10-11 | Heinrich Lanz Ag | Dispositif amortisseur de bruits pour moteurs à combustion interne à un ou plusieurs cylindres |
FR2097774A5 (fr) * | 1970-05-09 | 1972-03-03 | Teroson Gmbh | |
FR2150939A1 (en) * | 1971-09-03 | 1973-04-13 | Sulzer Ag | Moulded plastics shell - with woodchippings esp for vehicle bodywork |
FR2279545A1 (fr) * | 1974-07-26 | 1976-02-20 | British Uralite Ltd | Materiau insonorisant |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1984004355A1 (fr) * | 1983-04-23 | 1984-11-08 | Perkins Engines Group | Capot de machine |
Also Published As
Publication number | Publication date |
---|---|
GB2052388A (en) | 1981-01-28 |
DE3020818A1 (de) | 1980-12-04 |
US4522165A (en) | 1985-06-11 |
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