GB2129490A - Corrosion resistant exhaust silencers - Google Patents

Corrosion resistant exhaust silencers Download PDF

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Publication number
GB2129490A
GB2129490A GB08328653A GB8328653A GB2129490A GB 2129490 A GB2129490 A GB 2129490A GB 08328653 A GB08328653 A GB 08328653A GB 8328653 A GB8328653 A GB 8328653A GB 2129490 A GB2129490 A GB 2129490A
Authority
GB
United Kingdom
Prior art keywords
casing
silencer
flanges
pipe
exhaust pipe
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
GB08328653A
Other versions
GB2129490B (en
GB8328653D0 (en
Inventor
Alan William Richards
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.)
Individual
Original Assignee
Individual
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
Priority claimed from GB838300896A external-priority patent/GB8300896D0/en
Priority claimed from GB838314775A external-priority patent/GB8314775D0/en
Application filed by Individual filed Critical Individual
Priority to GB08328653A priority Critical patent/GB2129490B/en
Publication of GB8328653D0 publication Critical patent/GB8328653D0/en
Publication of GB2129490A publication Critical patent/GB2129490A/en
Application granted granted Critical
Publication of GB2129490B publication Critical patent/GB2129490B/en
Expired legal-status Critical Current

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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 ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • 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 ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • 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 ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • 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 ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
    • 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 ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 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
    • F01N2310/00—Selection of sound absorbing or insulating material
    • F01N2310/02—Mineral wool, e.g. glass wool, rock wool, asbestos 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
    • F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing
    • 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 gas passages, pipes or tubes
    • F01N2470/24—Concentric tubes or tubes being concentric to housing, e.g. telescopically assembled
    • 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
    • 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

Abstract

An exhaust silencer for an internal combustion engine has a plastics material casing (4) surrounding a perforated section (2) of exhaust pipe (1) being located by flanges (10) welded to the exhaust pipe. The casing is formed in two similar halves which are fused along their abutting edges after being brought together around the perforated section and entrapping a glass fibre cartridge (8) surrounded by millboard (9). The ends of these halves have inwardly projecting flanges which are recesses to receive the pipe flanges, with insulating rings (14) and sealant (15) interposed. <IMAGE>

Description

SPECIFICATION Improvements relating to exhaust silencers This invention relates to silencers for the exhaust pipes of internal combustion engines.
Most silencers are largely metal structures, and although some expensive versions are made in stainless steel, the majority use mild steel plate.
Although initially coated, this rapidly corrodes and seldom has a life of more than two years.
Silencers are usually in an exposed position beneath a vehicle where they are bespattered with water, salt and dirt from the road, and of course they are subject to widely differing temperatures and to exhaust gases and condensate.
It is the aim of this invention to provide a silencer which has a much longer life, without resorting to the expense of an all stainless steel structure.
According to the present invention there is provided a silencer for the exhaust of an internal combustion engine comprising a casing of plastics material surrounding a perforated section of exhaust pipe, the space between the casing and the pipe being filled with gas permeable sound absorbing heat resistant material.
The preferred filler material is glass fibre and the plastics of the casing is advantageously nylon with mineral filler material, such as mica, particularly that known as nylon 66 filled. There will generally be insulation to prevent direct contact between the plastics material and the exhaust pipe.
The casing may be made up from two semicylindrical members which fit together around the pipe. These members may be held together by fusing the plastics material along the abutting edges, as by ultrasonic welding.
In one preferred form, the casing has inwardly projecting flanges at each end, by which the silencer is located on the exhaust pipe, there being insulating means interposed between the pipe and silencer.
Each end flange may have an inwardly facing groove, and radial flanges are secured to the exhaust pipe to be received in those grooves, with the insulating means interposed. These are conveniently rings on opposed faces of the radial flanges. in addition, a sealant may be provided in the base of each groove to be engaged by the outer periphery of the associated radial flange.
The plastics material will itself have sound deadening properties compared with a metal casing, and its price will be comparable with mild steel. However, it is expected that it will have long life, and certainly much longer than an ordinary metal silencer. It will be adequately robust, and be better resistant to impacts than a metal casing since it will have a certain resilience.
For a better understanding of the invention, one embodiment will now be described, by way of example, with reference to the accompanying drawing, in which: Figure 1 is a side view, partially in axial section, of an exhaust silencer, and Figure 2 is an end view in the direction A of Figure 1.
In Figure 1 , an exhaust pipe 1 which may be coated mild steel or stainless steel, has a section 2 with a multitude of small perforations 3. The section 2 is made separately and its ends sleeved over separated plain portions of the exhaust pipe 1. It is surrounded by a casing 4 made up from two semi-cylindrical portions of moulded plastics material, preferably that known as structural foam nylon 66 filled. They have inwardly projecting semi-annular flanges 5 at each end which combine to surround the pipe 1 but without direct contact. Along the longitudinal edges, and extending around the ends over the straight radius edges of the flanges 5, there are outwardly projecting ribs 6 which are ultrasonically welded together, and also hot sealed at points 7.
The space within the casing 3 surrounding the perforated section 2 is filled with a wrap-around glass fibre cartridge 8, the fibre being wholly confined by an aluminium foil skin. Between this and the inner surface of the casing there is a cylindrical millboard lining 9.
The flanges 5 are of much greater thickness than the semi-cylindrical portions of the casing and have radially inwardly facing grooves. These combine to receive a radial-plane annular flange 10 at the end of a member 11 whose short cylindrical body 12 is sleeved over the end of the perforated section 2 and welded to it at the limit of its overlap with the plain section of the exhaust pipe 1, just beyond the casing at 13. Each side of the flange 10 is faced by an insulating ring 14, of asbestos for example, and a sodium silicate based sealant 1 5 is spread around the base of the groove in the flanges 5 so that the latter do not come into contact with the metal member 11; their outer edges embed into the sealant.The rings do not have to be positively attached to the flanges 10; they are captive in the grooves and also embed into the sealant, which permeates around them.
Although the longitudinally divided casing is preferred, it might be possible to avoid this and have a complete plastics tube sleeved over the exhaust pipe from its free end and attached to the pipe via separately mounted rings which plug into the ends, for example. It is then easy to have almost any desired length, for the main body of the casing can be an extrusion cut to the selected dimension. Care would still be taken to avoid direct contact between the exhaust pipe and the plastics material. It would also be possible to have standard short end sections, and one or more similar intermediate sections to enable a range of lengths to be produced from two basic components.
1. A silencer for the exhaust of an internal combustion engine comprising a casing of plastics material surrounding a perforated section of exhaust pipe, the space between the casing and the pipe being filled with gas permeable sound absorbing heat resistant material.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (9)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Improvements relating to exhaust silencers This invention relates to silencers for the exhaust pipes of internal combustion engines. Most silencers are largely metal structures, and although some expensive versions are made in stainless steel, the majority use mild steel plate. Although initially coated, this rapidly corrodes and seldom has a life of more than two years. Silencers are usually in an exposed position beneath a vehicle where they are bespattered with water, salt and dirt from the road, and of course they are subject to widely differing temperatures and to exhaust gases and condensate. It is the aim of this invention to provide a silencer which has a much longer life, without resorting to the expense of an all stainless steel structure. According to the present invention there is provided a silencer for the exhaust of an internal combustion engine comprising a casing of plastics material surrounding a perforated section of exhaust pipe, the space between the casing and the pipe being filled with gas permeable sound absorbing heat resistant material. The preferred filler material is glass fibre and the plastics of the casing is advantageously nylon with mineral filler material, such as mica, particularly that known as nylon 66 filled. There will generally be insulation to prevent direct contact between the plastics material and the exhaust pipe. The casing may be made up from two semicylindrical members which fit together around the pipe. These members may be held together by fusing the plastics material along the abutting edges, as by ultrasonic welding. In one preferred form, the casing has inwardly projecting flanges at each end, by which the silencer is located on the exhaust pipe, there being insulating means interposed between the pipe and silencer. Each end flange may have an inwardly facing groove, and radial flanges are secured to the exhaust pipe to be received in those grooves, with the insulating means interposed. These are conveniently rings on opposed faces of the radial flanges. in addition, a sealant may be provided in the base of each groove to be engaged by the outer periphery of the associated radial flange. The plastics material will itself have sound deadening properties compared with a metal casing, and its price will be comparable with mild steel. However, it is expected that it will have long life, and certainly much longer than an ordinary metal silencer. It will be adequately robust, and be better resistant to impacts than a metal casing since it will have a certain resilience. For a better understanding of the invention, one embodiment will now be described, by way of example, with reference to the accompanying drawing, in which: Figure 1 is a side view, partially in axial section, of an exhaust silencer, and Figure 2 is an end view in the direction A of Figure 1. In Figure 1 , an exhaust pipe 1 which may be coated mild steel or stainless steel, has a section 2 with a multitude of small perforations 3. The section 2 is made separately and its ends sleeved over separated plain portions of the exhaust pipe 1. It is surrounded by a casing 4 made up from two semi-cylindrical portions of moulded plastics material, preferably that known as structural foam nylon 66 filled. They have inwardly projecting semi-annular flanges 5 at each end which combine to surround the pipe 1 but without direct contact. Along the longitudinal edges, and extending around the ends over the straight radius edges of the flanges 5, there are outwardly projecting ribs 6 which are ultrasonically welded together, and also hot sealed at points 7. The space within the casing 3 surrounding the perforated section 2 is filled with a wrap-around glass fibre cartridge 8, the fibre being wholly confined by an aluminium foil skin. Between this and the inner surface of the casing there is a cylindrical millboard lining 9. The flanges 5 are of much greater thickness than the semi-cylindrical portions of the casing and have radially inwardly facing grooves. These combine to receive a radial-plane annular flange 10 at the end of a member 11 whose short cylindrical body 12 is sleeved over the end of the perforated section 2 and welded to it at the limit of its overlap with the plain section of the exhaust pipe 1, just beyond the casing at 13. Each side of the flange 10 is faced by an insulating ring 14, of asbestos for example, and a sodium silicate based sealant 1 5 is spread around the base of the groove in the flanges 5 so that the latter do not come into contact with the metal member 11; their outer edges embed into the sealant.The rings do not have to be positively attached to the flanges 10; they are captive in the grooves and also embed into the sealant, which permeates around them. Although the longitudinally divided casing is preferred, it might be possible to avoid this and have a complete plastics tube sleeved over the exhaust pipe from its free end and attached to the pipe via separately mounted rings which plug into the ends, for example. It is then easy to have almost any desired length, for the main body of the casing can be an extrusion cut to the selected dimension. Care would still be taken to avoid direct contact between the exhaust pipe and the plastics material. It would also be possible to have standard short end sections, and one or more similar intermediate sections to enable a range of lengths to be produced from two basic components. CLAIMS
1. A silencer for the exhaust of an internal combustion engine comprising a casing of plastics material surrounding a perforated section of exhaust pipe, the space between the casing and the pipe being filled with gas permeable sound absorbing heat resistant material.
2. A silencer as claimed in claim 1, wherein the filler material is glass fibre.
3. A silencer as claimed in claim 1 or 2, wherein the plastics material is nylon with mineral filler material.
4. A silencer as claimed in claim 1 , 2 or 3, wherein the casing comprises two generally semicylindrical members fitted together around the pipe.
5. A silencer as claimed in claim 4, wherein the two members are fused together along their abutting edges.
6. A silencer as claimed in any preceding claim, wherein the casing has inwardly projecting flanges at each end, by which the silencer is located on the exhaust pipe, there being insulating means interposed between the pipe and silencer.
7. A silencer as claimed in claim 6, wherein each end flange has an inwardly facing groove, and wherein radial flanges are secured to the exhaust pipe to be received in said grooves, with the insulating means interposed.
8. A silencer as claimed in claim 7, wherein the insulating means includes rings on opposed faces of the radial flanges.
9. A silencer as claimed in claim 7 or 8, wherein a sealant is provided in the base of each groove to be engaged by the outer periphery of the associated radial flange.
1 0. A silencer substantially as hereinbefore described with reference to the accompanying drawings.
GB08328653A 1982-10-26 1983-10-26 Corrosion resistant exhaust silencers Expired GB2129490B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08328653A GB2129490B (en) 1982-10-26 1983-10-26 Corrosion resistant exhaust silencers

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8230563 1982-10-26
GB838300896A GB8300896D0 (en) 1983-01-13 1983-01-13 Exhaust silencers
GB838314775A GB8314775D0 (en) 1983-05-27 1983-05-27 Exhaust silencers
GB08328653A GB2129490B (en) 1982-10-26 1983-10-26 Corrosion resistant exhaust silencers

Publications (3)

Publication Number Publication Date
GB8328653D0 GB8328653D0 (en) 1983-11-30
GB2129490A true GB2129490A (en) 1984-05-16
GB2129490B GB2129490B (en) 1986-12-31

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Country Status (1)

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GB (1) GB2129490B (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0316637A1 (en) * 1987-11-13 1989-05-24 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Housing for an exhaust gas-cleaning device
FR2629864A1 (en) * 1988-04-12 1989-10-13 Renault SILENCER FOR EXPLOSION ENGINES
DE4033858A1 (en) * 1989-10-24 1991-04-25 Honda Motor Co Ltd SUPPORT STRUCTURE FOR ENGINE SILENCERS
FR2681905A1 (en) * 1991-09-27 1993-04-02 Erear Improvements to exhaust silencers (mufflers) and to methods for manufacturing them
ES2063596A1 (en) * 1991-05-24 1995-01-01 Chorro Pascual Garcia Silencer for exhaust pipes
GB2366836A (en) * 2000-09-14 2002-03-20 Peter Warwick Wright Longlife lightweight exhaust silencer with composite casing
EP1253302A1 (en) * 2001-04-27 2002-10-30 J. Eberspächer GmbH Co. KG Exhaust silencer
FR2874405A1 (en) * 2004-08-17 2006-02-24 Renault Sas Exhaust system component e.g. exhaust gas catalyzer, for internal combustion engine, has central cylindrical part constituted of sheet parts assembled with each other by welding, and deflector that covers welded joint of parts
JP2007517163A (en) * 2003-12-31 2007-06-28 オウェンス コーニング Muffler assembly
WO2007120680A1 (en) * 2006-04-12 2007-10-25 Ocv Intellectual Capital, Llc Long fiber thermoplastic composite muffler system with integrated crash management
WO2009079402A1 (en) * 2007-12-14 2009-06-25 Ocv Intellectual Capital, Llc Composite muffler system thermosetable polymers
WO2009099986A3 (en) * 2008-02-01 2009-11-05 E. I. Du Pont De Nemours And Company Mufflers with polymeric bodies and process for manufactiuring same
US7810609B2 (en) 2007-09-26 2010-10-12 Chrysler Group Llc Muffler
WO2011047852A1 (en) * 2009-10-20 2011-04-28 Faurecia Emissions Control Technologies, Germany Gmbh Exhaust gas silencer
WO2011006673A3 (en) * 2009-07-17 2011-05-05 Culimeta Textilglas-Technologie Gmbh & Co. Kg Y-branch pipe with insulation
EP2469052A1 (en) * 2010-12-23 2012-06-27 Volkswagen AG Exhaust gas purification device
US20160061075A1 (en) * 2013-05-07 2016-03-03 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Muffler sound-insulation structure

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7942237B2 (en) 2006-04-12 2011-05-17 Ocv Intellectual Capital, Llc Long fiber thermoplastic composite muffler system with integrated reflective chamber
US7934580B2 (en) 2006-04-12 2011-05-03 Ocv Intellectual Capital, Llc Long fiber thermoplastic composite muffler system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4026381A (en) * 1975-09-15 1977-05-31 Hallamore Inc. Exhaust system cover assembly
US4239091A (en) * 1977-09-16 1980-12-16 Negrao Paulo M Muffler

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4026381A (en) * 1975-09-15 1977-05-31 Hallamore Inc. Exhaust system cover assembly
US4239091A (en) * 1977-09-16 1980-12-16 Negrao Paulo M Muffler

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0316637A1 (en) * 1987-11-13 1989-05-24 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Housing for an exhaust gas-cleaning device
FR2629864A1 (en) * 1988-04-12 1989-10-13 Renault SILENCER FOR EXPLOSION ENGINES
EP0337877A1 (en) * 1988-04-12 1989-10-18 Regie Nationale Des Usines Renault Silencer for internal-combustion engines
DE4033858A1 (en) * 1989-10-24 1991-04-25 Honda Motor Co Ltd SUPPORT STRUCTURE FOR ENGINE SILENCERS
ES2063596A1 (en) * 1991-05-24 1995-01-01 Chorro Pascual Garcia Silencer for exhaust pipes
FR2681905A1 (en) * 1991-09-27 1993-04-02 Erear Improvements to exhaust silencers (mufflers) and to methods for manufacturing them
GB2366836A (en) * 2000-09-14 2002-03-20 Peter Warwick Wright Longlife lightweight exhaust silencer with composite casing
EP1253302A1 (en) * 2001-04-27 2002-10-30 J. Eberspächer GmbH Co. KG Exhaust silencer
EP1900914A1 (en) * 2003-12-31 2008-03-19 Owens Corning Muffler assembly
JP2007517163A (en) * 2003-12-31 2007-06-28 オウェンス コーニング Muffler assembly
EP1900913A1 (en) * 2003-12-31 2008-03-19 Owens Corning Muffler assembly
FR2874405A1 (en) * 2004-08-17 2006-02-24 Renault Sas Exhaust system component e.g. exhaust gas catalyzer, for internal combustion engine, has central cylindrical part constituted of sheet parts assembled with each other by welding, and deflector that covers welded joint of parts
WO2007120680A1 (en) * 2006-04-12 2007-10-25 Ocv Intellectual Capital, Llc Long fiber thermoplastic composite muffler system with integrated crash management
US7730996B2 (en) 2006-04-12 2010-06-08 Ocv Intellectual Capital, Llc Long fiber thermoplastic composite muffler system with integrated crash management
US7810609B2 (en) 2007-09-26 2010-10-12 Chrysler Group Llc Muffler
WO2009079402A1 (en) * 2007-12-14 2009-06-25 Ocv Intellectual Capital, Llc Composite muffler system thermosetable polymers
WO2009099986A3 (en) * 2008-02-01 2009-11-05 E. I. Du Pont De Nemours And Company Mufflers with polymeric bodies and process for manufactiuring same
WO2011006673A3 (en) * 2009-07-17 2011-05-05 Culimeta Textilglas-Technologie Gmbh & Co. Kg Y-branch pipe with insulation
WO2011047852A1 (en) * 2009-10-20 2011-04-28 Faurecia Emissions Control Technologies, Germany Gmbh Exhaust gas silencer
US8485314B2 (en) 2009-10-20 2013-07-16 Faurecia Emissions Control Technologies, Germany Gmbh Exhaust muffler
EP2469052A1 (en) * 2010-12-23 2012-06-27 Volkswagen AG Exhaust gas purification device
US20160061075A1 (en) * 2013-05-07 2016-03-03 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Muffler sound-insulation structure
US9657616B2 (en) * 2013-05-07 2017-05-23 Kobe Steel, Ltd. Muffler sound-insulation structure

Also Published As

Publication number Publication date
GB2129490B (en) 1986-12-31
GB8328653D0 (en) 1983-11-30

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