WO2009079402A1 - Polymères thermodurcissables d'un système de silencieux composite - Google Patents

Polymères thermodurcissables d'un système de silencieux composite Download PDF

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Publication number
WO2009079402A1
WO2009079402A1 PCT/US2008/086670 US2008086670W WO2009079402A1 WO 2009079402 A1 WO2009079402 A1 WO 2009079402A1 US 2008086670 W US2008086670 W US 2008086670W WO 2009079402 A1 WO2009079402 A1 WO 2009079402A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
muffler assembly
fibers
combinations
thermoplastic
Prior art date
Application number
PCT/US2008/086670
Other languages
English (en)
Inventor
Peter Van De Flier
Luc Peters
Juergen Wiemann
Peter Derks
Norman T. Huff
Original Assignee
Ocv Intellectual Capital, Llc
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 Ocv Intellectual Capital, Llc filed Critical Ocv Intellectual Capital, Llc
Priority to CN2008801257788A priority Critical patent/CN101925724A/zh
Priority to EP08861215A priority patent/EP2235340A1/fr
Priority to BRPI0820982-0A priority patent/BRPI0820982A2/pt
Priority to US12/808,035 priority patent/US20100307863A1/en
Priority to JP2010538204A priority patent/JP2011508843A/ja
Publication of WO2009079402A1 publication Critical patent/WO2009079402A1/fr

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
    • 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
    • F01N13/001—Gas flow channels or gas chambers being at least partly formed in the structural parts of the engine or machine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
    • B60K13/04—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning exhaust
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/48—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
    • 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
    • F01N1/003—Silencing apparatus characterised by method of silencing by using dead chambers communicating with gas flow passages
    • F01N1/006—Silencing apparatus characterised by method of silencing by using dead chambers communicating with gas flow passages comprising at least one perforated tube extending from inlet to outlet of the silencer
    • 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
    • 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
    • F01N13/1861—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
    • F01N13/18—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
    • F01N13/1894—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells the parts being assembled in longitudinal direction
    • 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

Definitions

  • This invention relates generally to a muffler assembly and, more particularly, to a muffler assembly made from a composite material.
  • U.S. Patent No. 5,726,398 to Zahn et al discloses a bumper/muffler assembly.
  • a portion of the structure defining the muffler also forms part of the bumper and, hence, must be capable of absorbing high impact loads. If, after a certain period of vehicle operation, the muffler becomes defective and must be replaced, those defective parts must be replaced with costly parts capable of performing dual functions: that is, the attenuation of acoustic energy and the absorption of high impact loads.
  • the '398 patent also teaches that the bumper/muffler assembly may be formed from metal. There are inherent limitations from a design standpoint regarding possible shapes and sizes for metal mufflers.
  • U.S. Patent No. 6,668,972 to Huff et al discloses a bumper/muffler assembly including an outer housing or shell formed from a metal, a resin or a composite material.
  • the composite material is described as comprising reinforcement fibers and a resin material.
  • the resin material is then further identified as a phenolic resin, including but not limited to phenol formaldehyde resins such as novolac and resole resins, epoxy resins, vinyl ester resins, polyphenylene sulfide, high temperature nylons and poly ether etherketone.
  • the reinforcement fibers are described as glass fibers, graphite fibers, aramid fibers, carbon fibers, metallic fibers and/or ceramic fibers.
  • the present invention relates to a new and improved muffler assembly incorporating a housing made from composite material wherein at least a portion of that housing may be molded or made so as to form a vehicle component and thereby perform a dual function.
  • a muffler assembly comprises a housing defining at least one internal chamber.
  • the housing is constructed from a composite material made from a thermoplastic resin and a reinforcing element.
  • the reinforcing element is selected from a group of reinforcing materials consisting of glass fibers, aramid fibers, polyamide fibers, carbon fibers, graphite fibers, mineral fibers, ceramic fibers, carbon nanotubes, nano fillers, mineral fillers, ceramic fillers and combinations thereof.
  • the muffler assembly also includes a pipe that is received in the housing.
  • the pipe includes at least one opening providing acoustic communication between an internal passage in the pipe and the chamber in the housing.
  • the muffler assembly includes acoustic attenuating material received in the chamber in the housing.
  • the thermoplastic resin utilized to form the composite material is selected from a group of resin materials consisting of polyamide, nylon 6, nylon 66, nylon 46, aromatic polyamide, polyetherimide, polyethersulfone, polysulfone, polyphthalamide, polyphenylene sulfide, syndiotactic polystyrene, polyetherimide/silicone blend, liquid crystal polymer, polybutylene terephthalate, polyethylene terephthalate, cyclic thermoplastic, macrocyclic butylenes terephthalate, macrocyclic ethylene terephthalate, macrocyclic polycarbonate, thermoplastic urethane, polytetrafluoro ethylene, polyvinylidene fluoride, polyetheretherketone and combinations thereof.
  • the composite material comprises a glass reinforcing element with a glass fiber weight fraction ranging from about 5 to about 90 weight percent where greater than about 5 weight percent of said glass fiber fraction has an original length to diameter ratio of greater than or equal to 50.
  • the composite material is a mixture of between about 0 and about 90 weight percent polypropylene, between about 0 and about 90 weight percent polyethylene terephthalate and between about 10 and about 85 weight percent glass fibers.
  • the composite material may also include some thermoset resin. That thermoset resin may be selected from a group of thermoset resins consisting of unsaturated polyester, dicyclopentadiene, phenolic, phenol formaldehyde, novalac, resol, epoxy, vinyl ester, urethane and combinations thereof.
  • the housing may include an inlet and an outlet. A first heat sink may be provided in the inlet and a second heat sink may be provided in the outlet.
  • the housing may include an overmolded reinforcement.
  • That overmolded reinforcement may be an inlay constructed from a material selected from a group consisting of nonwoven fiber mat, woven fiber mat, unidirectional fiber fabric, metal sheeting and combinations thereof. More specifically, the inlay may be made from a material consisting of glass fibers, natural fibers, carbon fibers, mineral fibers, metallic fibers, aramid fibers and combinations thereof.
  • the overmolded reinforcement is an overlay providing impact resistance.
  • the overlay may be constructed from a material including metal sheeting, steel, aluminum, stainless steel, woven fiber mat, unwoven fiber mat, unidirectional fiber fabric and combinations thereof.
  • the muffler assembly may include a baffle in the housing.
  • the muffler assembly may also include a mounting bracket carried by the housing.
  • the muffler may include an active sound control device carried by the housing.
  • the housing may include a first section, a second section and a part line. The part line may run through the inlet and the outlet defined by the housing.
  • the housing may form a vehicle body or chassis component.
  • the composite material functions not only as the housing for the muffler but also forms a portion of the vehicle.
  • the vehicle component formed by the housing may be selected from a group consisting of a spare wheel well, an underbody shield, a fender, a wheel arch, a bumper, a running board, a rocker panel, a side fairing and an air dam.
  • the muffler assembly may include an inner housing that is received in the housing.
  • the inner housing may be constructed from a second composite material comprising a thermoset resin and a reinforcement element.
  • Figure 1 is an exploded, perspective view of a muffler assembly constructed in accordance with a first embodiment of the present invention
  • Figure 2 is a detailed cross-sectional view illustrating the heat sink used in the first embodiment at the inlet end of the housing;
  • Figure 3 is a view similar to Figure 2 but illustrating an alternative second embodiment for the heat sink and the construction of the housing;
  • Figure 4 is an exploded, perspective view of a second alternative embodiment of the invention illustrating a muffler assembly with a housing that also forms a vehicle bumper;
  • Figure 5 is a perspective view illustrating yet another embodiment of the present invention wherein the muffler assembly forms a part of the spare wheel well;
  • Figure 5a is an exploded perspective view of still another embodiment wherein the housing of the muffler assembly forms part of the wheel well and the underbody shielding of the vehicle;
  • Figure 6 is a perspective view illustrating a muffler assembly forming, alternatively, part of a side fairing and running board or rocker panel of a truck.
  • the muffler assembly 10 includes a housing 12 including a first section or shell 14 and a second section or shell 16. Each section 14, 16 includes a connection flange 18 that are put in abutting relationship to close the housing 12. The two sections 14, 16 may be secured together by any appropriate means known in the art including but not limited to ultrasonic welding and mechanical fasteners. As illustrated, the housing 12 includes an inlet 20 and an outlet 22. The parting line defined by the abutting flanges 18 runs through the inlet 20 and outlet 22 in the Figure 1 embodiment. It should be appreciated, however, that the parting line is not required to run through the inlet 20 or the outlet 22.
  • An internal cavity or chamber 24 is defined by the housing 12.
  • a pipe 26 is received in the housing 12. More particularly, in the illustrated embodiment the pipe 26 extends through the inlet 20, includes an intermediate section 28 that passes through the housing 12 and extends through the outlet 22.
  • the intermediate section 28 of the pipe 26 includes a number of apertures or openings 30. These openings 30 provide acoustic communication between an internal passage in the pipe 26 and the internal chamber 24 formed by the housing 12.
  • An acoustic attenuating material 32 is received in the chamber 24 in the housing 12 and serves to reduce the exhaust noise produced by the vehicle.
  • Heat sinks 34 are provided between the pipe 26 and the housing sections 14, 16 at the inlet 20 and outlet 22 in order to protect the housing sections 14, 16 from damage due to high temperatures.
  • the housing 12 is constructed from a composite material made from a thermoplastic resin and a reinforcing element.
  • the thermoplastic resin is selected from a group of resin materials consisting of polyamide, nylon 6, nylon 66, nylon 46, aromatic polyamide, polyetherimide, polyethersulfone, polysulfone, polyphthalamide, polyphenylene sulfide, syndiotactic polystyrene, polyetherimide/silicone blend, liquid crystal polymer, polybutylene terephthalate, polyethylene terephthalate, cyclic thermoplastic, macrocyclic butylenes terephthalate, macrocyclic ethylene terephthalate, macrocyclic polycarbonate, thermoplastic urethane, polytetrafluoro ethylene, polyvinylidene fluoride, polyetheretherketone and combinations thereof.
  • the reinforcing element is selected from a group of reinforcing materials consisting of glass fibers, aramid fibers, polyamide fibers, carbon fibers, graphite fibers, mineral fibers, ceramic fibers, carbon nanotubes, nano fillers, mineral fillers, ceramic fillers and combinations thereof.
  • the composite material comprises a long fiber thermoplastic including a thermoplastic resin selected from a group of thermoplastic resins consisting of nylon 6, nylon 66, nylon 46, aromatic polyamide, polyetherimide, polyethersulfone, polysulfone, polyphthalamide, polyphenylene sulfide, syndiotactic polystyrene, polyetherimide/silicone blend, liquid crystal polymer, polybutylene terephthalate, polyethylene terephthalate, cyclic thermoplastic, macrocyclic butylenes terephthalate, macrocyclic ethylene terephthalate, macrocyclic polycarbonate, thermoplastic urethane, polytetrafluoroethylene, polyvinylidene fluoride, polyetheretherketone and combinations thereof.
  • the long fiber thermoplastic also includes a glass reinforcing element with a glass fiber weight fraction ranging from about 5 to about 90 weight percent. Greater than about 5 weight percent of the glass fiber fraction has an original length to diameter ratio of greater than or equal to
  • the composite material is a mixture of between about 0 and about 90 weight percent polypropylene, between about 0 and about 90 weight percent polyethylene terephthalate and between about 10 and about 85 weight percent glass fibers.
  • the composite material may also include some thermoset resin. That thermoset resin is selected from a group of thermoset resins consisting of unsaturated poly, dicyclopentadiene, phenolic, phenol formaldehyde, novalac, resols, epoxy, vinyl ester, urethane and combinations thereof.
  • the thermoset resin may comprise anywhere from about 5 to about 85 weight percent of the total resin in the composite material.
  • the muffler assembly 10 includes a mounting bracket 38.
  • a first end 40 of the mounting bracket 38 is molded into the composite material forming the housing 12.
  • a second end 42 of the bracket 38 projects from the housing 12 and includes apertures 44 to receive fasteners (not shown) for mounting the muffler assembly 10 to a vehicle.
  • the muffler assembly 10 illustrated in Figure 10 also includes a baffle 46 that divides the interior of the housing 12 into multiple chambers 24' and 24". While one baffle 46 is shown, it should be appreciated that multiple baffles 46 may be provided if desired.
  • Acoustic attenuating material 32 such as continuous glass filament strands texturized with pressurized air and sold under the trademark SILENTEX may be received in each of the chambers 24', 24".
  • the baffle 46 may also support an optional active sound control device 48.
  • the active sound control device 48 comprises a sound cancellation generator including a controller, a sound sensor and a sound transducer. The sound control device 48 functions to produce a sound wave that partially or completely cancels sound generated by the exhaust gases passing through the vehicle exhaust system.
  • the muffler assembly 10 may include an optional inlay 50.
  • the inlay 50 may be made from a material selected from a group consisting of glass fibers, natural fibers, carbon fibers, mineral fibers, metallic fibers, aramid fibers and combinations thereof. Further, the inlay 50 may be overmolded with the composite material utilized to make the housing 12.
  • the inlay 50 may be used to provide the housing 12 with extra strength such as, for example, for spanning the space between attachment points to the vehicle.
  • the muffler assembly 10 may also include an overlay 52.
  • Such an overlay may be constructed, for example, from a material including metal sheeting, steel, aluminum, stainless steel, woven fiber mat, unwoven fiber mat, unidirectional fiber fabric and combinations thereof.
  • the overlay 52 may be an overmolded reinforcement covered with the composite material that forms the shell 12.
  • such an overlay 52 is provided along surfaces of the muffler assembly 10 that are exposed to potential impact damage such as from rocks or other debris that might be thrown up from the roadway.
  • the muffler assembly 10 again includes a housing 10 forming a chamber 24 that again receives acoustic attenuating material 32.
  • the housing 10 also includes an inlet 20 lined with a heat sink 34.
  • An exhaust pipe 26 passes through the inlet 20 with an intermediate section 28 of the pipe received in the chamber 24. Apertures 30 in the intermediate section 28 allow acoustic communication between the interior passageway or lumen of the pipe 26 and the chamber 24.
  • the pipe 26 also includes a flex pipe section 27 that is partially received in the heat sink 34.
  • the embodiment illustrated in Figure 3 also includes an inner housing 54 received as a lining of the housing 12.
  • the inner housing 54 may be constructed from a second composite material comprising a thermoset resin and a reinforcement element.
  • the thermoset resin may comprise unsaturated polyester, dicyclopentadiene, phenolic, phenol formaldehyde, novalac, resol, epoxy, vinyl ester, urethane and combinations thereof.
  • the reinforcement element may comprise, for example, glass fibers, aramid fibers, polyamide fibers, carbon fibers, graphite fibers, mineral fibers, ceramic fibers, carbon nanotubes, nano fillers, mineral fillers, ceramic fillers and combinations thereof.
  • the housing 12 since the housing 12 is molded or otherwise made from a composite material, it may easily be formed into intricate shapes. Accordingly, the housing 12 or at least a portion thereof may serve the dual function of providing a housing for the muffler assembly and also forming a body or chassis component of the vehicle such as a spare wheel well, an underbody shield, a fender, a wheel arch, a bumper, a running board, a rocker panel, a side fairing and an air dam.
  • a body or chassis component of the vehicle such as a spare wheel well, an underbody shield, a fender, a wheel arch, a bumper, a running board, a rocker panel, a side fairing and an air dam.
  • the muffler assembly 10 forms a bumper for the vehicle. More specifically, the first section 14 of the housing 12 forms the face and upper portion of the bumper. As illustrated, the first housing section 14 includes portions of the inlet 20, a portion of the outlet 22 and a portion of the chamber 24. The second section 16 of the housing 12 forms the bottom of the bumper and also includes portions of the inlet 20, outlet 22 and chamber 24. A pipe 26 including an intermediate section 28 with openings 30 is received in the housing 12. Heat sinks 34 are provided between the pipe and the inlet 20 and outlet 22. Acoustic attenuating material 32 is provided in the chamber 24 around the intermediate pipe section 28.
  • Figures 5 and 5a illustrate yet another embodiment of muffler assembly 10 of the present invention.
  • the first section 14 of the housing 12 forms the spare wheel well.
  • the first section 14 includes a cavity 60 for receiving the spare wheel.
  • a cover 62 may be provided for closing the cavity.
  • the second section 16 of the housing 12 forms the chamber 24 that receives the intermediate 28 of the pipe 26 as well as the sound attenuating material 32.
  • a bumper plate closeout panel 64 including a tailgate seal 66, a composite bumper beam 68 and a fascia 70 complete the assembly.
  • the spare wheel well portion of the muffler assembly 10 may simply form a portion of an entire underbody shield and including wheel wells. That system of panels includes underbody panels, 72, 74 and 76 wherein a portion of the pipe 26 are sandwiched and received between the panels 74 and 76.
  • the muffler assembly 10 may incorporate a housing 12 that forms a part of the side fairing, air dam, running board or rocker panel of a truck T.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Exhaust Silencers (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Reinforced Plastic Materials (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

Un ensemble silencieux comprend un logement définissant au moins une chambre intérieure. Le logement est construit à partir d'un matériau composite fait de résine thermoplastique et d'un élément de renfort. L'élément de renfort est sélectionné parmi un groupe composé de matériaux de renfort constitués de fibre de verre, de fibres d'aramide, de fibres de polyamide, de fibres de carbone, de fibres de graphite, de fibres minérales, de fibres céramiques, de nanotubes de carbone, de charges nanométriques, de charges minérales, de charges céramiques et de combinaisons de ceux-ci. Un tuyau est reçu dans le logement. Le tuyau comprend au moins une ouverture permettant une communication acoustique entre un passage intérieur dans le tuyau et la chambre dans le logement. Un matériau d'atténuation acoustique est reçu dans cette chambre.
PCT/US2008/086670 2007-12-14 2008-12-12 Polymères thermodurcissables d'un système de silencieux composite WO2009079402A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN2008801257788A CN101925724A (zh) 2007-12-14 2008-12-12 可热固化聚合物的复合消声器系统
EP08861215A EP2235340A1 (fr) 2007-12-14 2008-12-12 Polymères thermodurcissables d'un système de silencieux composite
BRPI0820982-0A BRPI0820982A2 (pt) 2007-12-14 2008-12-12 Polímero termocuráveis para sistemas de silencioso de compósito
US12/808,035 US20100307863A1 (en) 2007-12-14 2008-12-12 Composite muffler system thermosetable polymers
JP2010538204A JP2011508843A (ja) 2007-12-14 2008-12-12 複合マフラーシステム熱硬化性ポリマー

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US213407A 2007-12-14 2007-12-14
US12/002,134 2007-12-14

Publications (1)

Publication Number Publication Date
WO2009079402A1 true WO2009079402A1 (fr) 2009-06-25

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ID=40421968

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Application Number Title Priority Date Filing Date
PCT/US2008/086670 WO2009079402A1 (fr) 2007-12-14 2008-12-12 Polymères thermodurcissables d'un système de silencieux composite

Country Status (6)

Country Link
EP (1) EP2235340A1 (fr)
JP (1) JP2011508843A (fr)
KR (1) KR20100102645A (fr)
CN (1) CN101925724A (fr)
BR (1) BRPI0820982A2 (fr)
WO (1) WO2009079402A1 (fr)

Cited By (5)

* 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
WO2012177669A1 (fr) * 2011-06-21 2012-12-27 E. I. Du Pont De Nemours And Company Ensemble silencieux et procédé de fabrication
DE102011108056A1 (de) * 2011-07-21 2013-01-24 Mann + Hummel Gmbh Abgasschalldampfer
EP2386734A3 (fr) * 2010-05-11 2015-04-29 Eberspächer Exhaust Technology GmbH & Co. KG Système d'échappement et structure de support d'un tel système
WO2016145244A1 (fr) * 2015-03-11 2016-09-15 Ocv Intellectual Capital, Llc Procédés et systèmes de remplissage de silencieux avec une matière fibreuse

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CN103571015A (zh) * 2013-10-21 2014-02-12 虞伟财 一种割草机壳体用塑料制备方法
CN103571016A (zh) * 2013-10-21 2014-02-12 虞伟财 一种电锯壳体用塑料制备方法
CN103571018A (zh) * 2013-10-21 2014-02-12 虞伟财 一种电锯壳体用塑料
CN103571017A (zh) * 2013-10-21 2014-02-12 虞伟财 一种电锯壳体用塑料及制备方法
CN105153679A (zh) * 2015-09-07 2015-12-16 东莞市雄林新材料科技股份有限公司 一种风机叶片用tpu复合膜及其制备方法
CN105348737B (zh) * 2015-11-18 2018-07-27 宁波升鸿机械设备有限公司 一种消音器
CN106285890A (zh) * 2016-08-31 2017-01-04 河南中盛汽配科技股份有限公司 消声器
CN114087167A (zh) * 2021-12-22 2022-02-25 杭州本松新材料技术股份有限公司 一种制冷压缩机用气缸盖

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US7942237B2 (en) 2006-04-12 2011-05-17 Ocv Intellectual Capital, Llc Long fiber thermoplastic composite muffler system with integrated reflective chamber
EP2386734A3 (fr) * 2010-05-11 2015-04-29 Eberspächer Exhaust Technology GmbH & Co. KG Système d'échappement et structure de support d'un tel système
WO2012177669A1 (fr) * 2011-06-21 2012-12-27 E. I. Du Pont De Nemours And Company Ensemble silencieux et procédé de fabrication
DE102011108056A1 (de) * 2011-07-21 2013-01-24 Mann + Hummel Gmbh Abgasschalldampfer
WO2016145244A1 (fr) * 2015-03-11 2016-09-15 Ocv Intellectual Capital, Llc Procédés et systèmes de remplissage de silencieux avec une matière fibreuse
US10525495B2 (en) 2015-03-11 2020-01-07 Ocv Intellectual Capital, Llc Methods and systems for filling mufflers with fibrous material
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BRPI0820982A2 (pt) 2015-06-16
CN101925724A (zh) 2010-12-22
JP2011508843A (ja) 2011-03-17
KR20100102645A (ko) 2010-09-24

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