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EP1600613A1 - Silencieux pour les gaz d'échappement - Google Patents

Silencieux pour les gaz d'échappement Download PDF

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Publication number
EP1600613A1
EP1600613A1 EP05445034A EP05445034A EP1600613A1 EP 1600613 A1 EP1600613 A1 EP 1600613A1 EP 05445034 A EP05445034 A EP 05445034A EP 05445034 A EP05445034 A EP 05445034A EP 1600613 A1 EP1600613 A1 EP 1600613A1
Authority
EP
European Patent Office
Prior art keywords
fastener
muffler
fastener tube
engine
outlet
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Withdrawn
Application number
EP05445034A
Other languages
German (de)
English (en)
Inventor
Paul A. Warfel
Scott Ericson
Rodney W. Tynes
Roy Perryman
Christofer Ferguson
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.)
Electrolux Home Products Inc
Original Assignee
Electrolux Home Products Inc
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 Electrolux Home Products Inc filed Critical Electrolux Home Products Inc
Publication of EP1600613A1 publication Critical patent/EP1600613A1/fr
Withdrawn legal-status Critical Current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
    • F01N13/1888—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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • 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
    • F01N13/002—Apparatus adapted for particular uses, e.g. for portable devices driven by machines or engines
    • 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
    • F01N13/1833—Construction facilitating manufacture, assembly, or disassembly specially adapted for small internal combustion engines, e.g. used in model applications
    • 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
    • F01N13/1844—Mechanical joints
    • F01N13/1855—Mechanical joints the connection being realised by using 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
    • 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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/06—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for extinguishing sparks
    • 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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
    • F01N3/2885—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices with exhaust silencers 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
    • F01N2230/00—Combination of silencers and other devices
    • F01N2230/06—Spark arresters
    • 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
    • F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
    • F01N2590/06—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for hand-held tools or portables devices

Definitions

  • the present invention is directed to an exhaust gas muffler for an engine and especially for engines used for portable tools such as a chain saw or the like.
  • Exhaust gas mufflers for internal combustion engines are well known for a long time, and have mainly been used for cars. For portable tools, such as chain saws, they have been available on the market to a small extent since the end of the 1980's.
  • the exhaust gases are delivered to an exhaust gas muffler from an exhaust port of a cylinder.
  • the exhaust gases are processed there and discharged out.
  • an oxidizing catalyst in order to reduce pollutants such as hyrdocarbons, carbon monoxide, and the like.
  • the invention can provide a front outlet catalyst muffler that combines parts to save parts, weight, and simplify the design.
  • the present invention includes a muffler for attachment to an engine that includes an inlet for receiving exhaust gases into the muffler, a catalyst assembly located within the muffler, and a fastener tube for fastening the muffler to the engine.
  • a fastener tube cover covers the fastener tube and includes an outlet for exiting exhaust gases.
  • the outlet includes a directional louver that directs the exiting exhaust gases.
  • the fastener tube cover can retain a spark arrestor, which maintains maximum spark particle size in the exiting exhaust gases.
  • a catalyst muffler with a front outlet design provides improvements over current catalyst mufflers for small gasoline powered engines.
  • Fig. 1 shown is an exploded view of the muffler according to an embodiment of the present invention.
  • Exhaust gas mixture travels through a cylinder port 102 of a back plate 101 and enters a diffuser 116 that is located within a muffler body 110.
  • a series of smaller openings in the diffuser 116 allow the exhaust gas to exit the diffuser to the area between the diffuser and a catalyst assembly 123.
  • the exhaust gas then passes through a catalyst screen 122 of the catalyst assembly 123.
  • Precious metal(s) (PM) trapped on the surface of the catalyst screen 122 come in contact with the exhaust gas.
  • PM Precious metal(s)
  • the interaction with the PM converts approximately 10 g/hp-h of HC and NO x to other gases.
  • the catalyst screen 122 is captured between the edges of a first catalyst bulkhead 119 and a second catalyst bulkhead 125 to allow the greatest surface contact with the exhaust gas while transferring the least amount of thermal energy back to the muffler body 110.
  • the PM amount can be varied to get different conversion rates.
  • a crimping operation is used to connect the bulkheads 119, 125 to the screen 122 and allow for thermal expansion.
  • FIG. 2 shown is an isometric view of an exhaust gas muffler that shows a portion of the pathway that the exhaust gas takes.
  • the exhaust gas After passing through the catalyst assembly 123 (see Fig. 1), the exhaust gas is in a muffler shell 170.
  • a muffler cover 131 and the muffler body 110 combine to form the muffler shell 170.
  • the exhaust gas exits thorough exhaust ports, such as a first exhaust port 161 and a second exhaust port 162, in the muffler cover 131. In the current embodiment, these exhaust ports are located in a pocket 175.
  • the pocket 175 also contains a first fastener entrance port 138 (Fig.1) of a first fastener tube 137 and a second fastener entrance port 141 (Fig.1) of a second fastener tube 140.
  • This pocket 175 allows for a volume as the exhaust gas exits the muffler shell 170 and passes through the spark arrestor 149. Once the exhaust gas passes through the spark arrestor 149, the exhaust gas enters a volume defined by a fastener tube cover 152. This is the space between the muffler cover 131 and the fastener tube cover 152.
  • the fastener tube cover 152 is designed to control direction and diffuse the exhaust gas as it leaves the muffler. This yields a lower plane temperature that is within the parameters set forth within SAE J335, which is a standard established by the USDA for the Society of Automotive Engineers to prevent forest fires.
  • the fastener tube cover's 152 effectiveness is enhanced by the size of an outlet 155 of the fastener tube cover 152, the deflection plate 158 in the center of the outlet 155, the slope of the fastener tube cover 152, and by a flush surface created by the fastener tube cover 152 and the muffler cover 131.
  • the fastener tube cover 152 comprises a directional louver 154 that helps direct exiting exhaust gases. All of these features cause the gases exhausted from the outlet 155 to cling to the fastener tube cover 152 and limit the temperature of the gases exhausted through the outlet 155.
  • first fastener tube 137 and a second faster tube 140 that are used to fasten the muffler to the engine in the current embodiment.
  • Each fastener tube has a fastener entrance port, such as 138 and 141, for facing away from the engine and a fastener exit port, such as 139 and 142, for facing towards the engine.
  • a first fastener 143 is threaded through the first fastener tube 137 then fastened to the engine.
  • a second fastener 146 is threaded through the second fastener tube 140 then fastened to the engine.
  • the fasteners are bolts. However, other fastening devices, such as screws, could be used in the alternative to attach the muffler to the engine.
  • flanged tubes such as the first fastener tube 137 and the second fastener tube 140. These flanged tubes significantly reduce the amount of metal compressed under the mounting fasteners, such as the first fastener 143 and the second fastener 146.
  • the fastener tubes also shield the fasteners from the exhaust gases in the diffuser 116.
  • Another use for the fastener tubes is to significantly reduce the mounting fastener exposure to the catalyst heat. Additionally, the fastener tubes can be used to clamp the muffler body 110 to the muffler cover 131.
  • the fastener tubes provide receptacles for debris such as sawdust to collect. Such collected debris can be problematic, accordingly, a cover, such as the fastener tube cover 152, is used to prevent debris from entering the fastener tubes.
  • the fastener tube cover 152 in addition to preventing debris from entering the fastener tubes, can be used to hold a spark arrestor 149 in place, and to serve as an exhaust gas outlet. These multiple uses reduce the amount of components necessary to create a muffler. This eases assembly and lowers cost. Also, in the current embodiment, the location of the fastener tube cover 152 on the front of the muffler allows for easier servicing of the spark arrestor 149.
  • the fastener tube cover 152 shown is the fastener tube cover 152.
  • the outlet 155 has a deflection plate 158 in the center of the outlet 155.
  • the deflection plate 158 could be off-center.
  • the fastener tube cover 152 also comprises a directional louver 154 that helps direct exiting exhaust gases. As can be seen in Fig. 3, the fastener tube cover 152 is sloped. This design creates a flush surface between the fastener tube cover 152 and the muffler cover 131 (see Fig. 1). These features of the fastener tube cover 152 cause the gases exhausted from the outlet 155 to cling to the fastener tube cover 152.
  • a cover 180 that could be added over the outlet 155 (Fig.1) of the fastener tube cover 152 for increased exhaust gas directional control and to serve as additional protection from the exhaust heat.
  • the cover 180 could be part of the fastener tube cover 152 or a separate part. If the cover 180 is a separate part, the cover 180 could be retained by the same fastener, such as the weld stud 134 (Fig. 1), used to retain the fastener tube cover 152.
  • the backplate 101 is attached to a cylinder portion of the engine.
  • An opening 103 in the backplate 101 allows part of the cylinder to contact the muffler body 110 to help prevent the muffler from picking up a resonate vibration and loosening the fasteners that hold the muffler to the engine.
  • the cylinder port 102 of the backplate 101 allows the exhaust gas to travel from the engine to the muffler body 110.
  • a gasket 107 Between the backplate 101 and the muffler body 110 is a gasket 107 which ensures proper sealing.
  • a first doubler 113 is located between the muffler body 110 and the diffuser 116 to allow a better seal.
  • a second doubler 128 is located between the catalyst assembly 123 and the muffler cover 131 to serve as a thermal barrier.
  • the diffuser 116 is located inside the catalyst assembly 123 which is located within the muffler body 110.
  • the diffuser 116 serves as a first chamber in the muffler and channels the exhaust gases inside the catalyst assembly 123 where the exhaust gases are directed to the catalyst screen 122 by holes and slots in the diffuser 116. This gives more uniform exhaust gas distribution, which ensures that the entire catalyst screen 122 is used to the best of its potential.
  • the diffuser 116 also can serve as a spacer inside the muffler to prevent the muffler body 110 and the muffler cover 131 from collapsing. Once the exhaust gas leaves the diffuser 116, the exhaust gas enters the surrounding catalyst assembly 123.
  • the catalyst assembly 123 comprises a first catalyst bulkhead 119, a second catalyst bulkhead 125 and a catalyst screen 122.
  • a flat catalyst screen 122 is formed around a round mandrel and crimped in the edges of the catalyst bulkheads to form the catalyst assembly 123. This shape allows the greatest surface contact with the exhaust gas while transferring the least amount of thermal energy back to the muffler.
  • a stainless steel wire cloth is coated with the PM to form the catalyst screen 122.
  • the exhaust gas After passing through the catalyst assembly 123, the exhaust gas is in the muffler shell 170 (see Fig. 2). From the muffler shell 170, the exhaust gas exits through exhaust ports that are located in the muffler cover 131. Before leaving the muffler through the outlet 155 of the fastener tube cover 152, the exhaust gas must pass through a spark arrestor 149.
  • the spark arrestor 149 is located between the muffler cover 131 and the fastener tube cover 152.
  • the spark arrestor 149 is required to meet maximum spark particle size in the exiting exhaust gas as required by SAE J335.
  • There is a second hole 150 in the spark arrestor 149 There is a first hole 153 in the fastener tube cover.
  • An attacher can fasten the spark arrestor 149 and the fastener tube cover 152 to the muffler.
  • a weld stud 134 combined with a nut can serve as the attacher.
  • the weld stud 134 can thread through the second hole 150 and the first hole 153.
  • the nut is threadingly engaged with the weld stud 134 to hold the spark arrestor 149 and the fastener tube cover 152 in place.
  • alternative suitable attacher devices could be used to fasten the fastening opening cover 152 and spark arrestor 149 to the muffler.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Silencers (AREA)
  • Exhaust Gas After Treatment (AREA)
EP05445034A 2004-05-27 2005-05-18 Silencieux pour les gaz d'échappement Withdrawn EP1600613A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US854812 2004-05-27
US10/854,812 US20050263344A1 (en) 2004-05-27 2004-05-27 Exhaust gas muffler

Publications (1)

Publication Number Publication Date
EP1600613A1 true EP1600613A1 (fr) 2005-11-30

Family

ID=34943242

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05445034A Withdrawn EP1600613A1 (fr) 2004-05-27 2005-05-18 Silencieux pour les gaz d'échappement

Country Status (6)

Country Link
US (1) US20050263344A1 (fr)
EP (1) EP1600613A1 (fr)
JP (1) JP2005337247A (fr)
CN (1) CN1727646A (fr)
CA (1) CA2506434A1 (fr)
TW (1) TWI273163B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008079056A1 (fr) * 2006-12-22 2008-07-03 Husqvarna Aktiebolaget Silencieux d'échappement comprenant un pot catalytique
EP2505857A1 (fr) * 2011-03-30 2012-10-03 Nissan Motor Manufacturing (UK) Ltd. Couvercle d'élément de fixation

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DE10241883B4 (de) * 2002-09-10 2012-06-21 Andreas Stihl Ag & Co. Handgeführtes Arbeitsgerät mit einem Befestigungsstift für einen Abgasschalldämpfer
JP4802007B2 (ja) * 2006-02-15 2011-10-26 ハスクバーナ・ゼノア株式会社 マフラ、作業機械
KR100820687B1 (ko) 2006-09-27 2008-04-11 현대자동차주식회사 촉매가 분리되는 머플러
KR100957315B1 (ko) * 2007-12-15 2010-05-12 현대자동차주식회사 분해 가능한 상용차용 머플러
US9121319B2 (en) 2012-10-16 2015-09-01 Universal Acoustic & Emission Technologies Low pressure drop, high efficiency spark or particulate arresting devices and methods of use
US8997922B1 (en) * 2013-10-24 2015-04-07 Kawasaki Jukogyo Kabushiki Kaisha Exhaust muffler for vehicle

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US4418790A (en) * 1981-11-18 1983-12-06 Mcculloch Corporation Method and apparatus for attenuating sound
US5139107A (en) * 1990-12-11 1992-08-18 Kioritz Corporation Exhaust muffler for internal combustion engines
US5883342A (en) * 1996-05-25 1999-03-16 Andreas Stihl Ag & Co. Muffling device for combustion engines
WO2002036942A1 (fr) * 2000-11-03 2002-05-10 Aktiebolaget Electrolux Silencieux d'un moteur a combustion interne

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1447877A (en) * 1972-10-25 1976-09-02 Tecumseh Products Co Silencers for internal combustion engine exhaust gases
US4418790A (en) * 1981-11-18 1983-12-06 Mcculloch Corporation Method and apparatus for attenuating sound
US5139107A (en) * 1990-12-11 1992-08-18 Kioritz Corporation Exhaust muffler for internal combustion engines
US5883342A (en) * 1996-05-25 1999-03-16 Andreas Stihl Ag & Co. Muffling device for combustion engines
WO2002036942A1 (fr) * 2000-11-03 2002-05-10 Aktiebolaget Electrolux Silencieux d'un moteur a combustion interne

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008079056A1 (fr) * 2006-12-22 2008-07-03 Husqvarna Aktiebolaget Silencieux d'échappement comprenant un pot catalytique
US9027330B2 (en) 2006-12-22 2015-05-12 Husqvarna Aktiebolag Exhaust muffler comprising a catalytic converter
EP2505857A1 (fr) * 2011-03-30 2012-10-03 Nissan Motor Manufacturing (UK) Ltd. Couvercle d'élément de fixation

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TWI273163B (en) 2007-02-11
JP2005337247A (ja) 2005-12-08
CN1727646A (zh) 2006-02-01
TW200540330A (en) 2005-12-16
US20050263344A1 (en) 2005-12-01
CA2506434A1 (fr) 2005-11-27

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