CN1478994A - Muffler - Google Patents
Muffler Download PDFInfo
- Publication number
- CN1478994A CN1478994A CNA031525202A CN03152520A CN1478994A CN 1478994 A CN1478994 A CN 1478994A CN A031525202 A CNA031525202 A CN A031525202A CN 03152520 A CN03152520 A CN 03152520A CN 1478994 A CN1478994 A CN 1478994A
- Authority
- CN
- China
- Prior art keywords
- exhaust silencer
- resonant cavity
- resonatron
- cavity
- noise elimination
- 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
Links
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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
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
An exhaust silencer for an engine in a handheld, portable power tool such as a motor-driven chain saw, a disc grinder or similar, has silencer housing 2 enclosing at least one damping chamber 5. The silencer housing 2 has an inlet 3 for exhaust gases from the motor and an outlet 4. In order improve the noise-absorbing properties of the exhaust silencer 1, it has a resonator chamber 6 sealed off from the damping chamber 5 so as to be substantially fluid-tight. A resonance pipe 7 carrying exhaust gas runs through the resonator chamber 6, an acoustic link existing between the resonance pipe 7 and the resonator chamber 6. The acoustic link may be provided in the form of orifices 8 in the resonance pipe 7, for example.
Description
Technical field
The present invention relates to a kind of exhaust silencer, be used for hand-held portability work apparatus, as the internal-combustion engine on the like instrument such as mechanical chain saw, cutting machine, this exhaust silencer has a suppressor case that surrounds at least one noise elimination cavity, and suppressor case has the suction port and the relief opening that are used for from the waste gas of internal-combustion engine.
Background technique
By the known a kind of exhaust silencer that is used for the internal-combustion engine of hand-held apparatus of DT 25 39 516 A1.This exhaust silencer has a noise elimination cavity that is formed in the housing.Suction port feeds noise elimination cavity and relief opening is derived from noise elimination cavity.
Summary of the invention
The objective of the invention is to propose a kind of exhaust silencer by the above-mentioned type, it has good acoustic characteristics.
The exhaust silencer of the feature of this purpose by having claim 1 is realized.
Be in the resonant cavity that sound wave is connected (Schallverbindung) with resonatron and play additional effect of eliminating the noise.Flow at this fluid that does not take place substantially from the resonatron to the resonant cavity.Resonant cavity especially suppresses 1000Hz to the interior high frequency of about 2500Hz scope.
Resonatron is arranged between noise elimination cavity and the relief opening along exhaust gas flow direction and meets purpose.By resonant cavity for example is full of the delivery temperature that can reduce relatively thus in the resonant cavity with glass wool.The sound wave linkage structure practicably meets purpose by the formation of the perforate on the resonatron.Stipulate that in order to eliminate the noise well the gross area of perforate is about 200mm
2To 500mm
2, especially from 350mm
2To 400mm
2Stipulate that in order to realize favourable processability perforate is circular.Opening diameter is 1mm to 4mm, and especially about 2mm meets purpose.If resonatron has 100 to 150, especially about 120 perforates of leading to resonant cavity then can realize good acoustic characteristics.
Resonatron bending extension in resonant cavity meets purpose.Can realize the favourable structure of resonatron thus.Especially resonatron deviates from the end formation relief opening of noise elimination cavity.Make waste gas pass through to discharge from exhaust silencer behind the resonatron thus.Resonant cavity constitutes the last level of eliminating the noise.Realize good acoustic characteristics thus.In addition, relief opening can constitute with plain mode.Stipulate that here suction port and relief opening are opposed substantially.Suppressor case is by two and half housings, and promptly one comprises that the lower half shell of suction port and a upper half shell formation suit.Resonant cavity is made of the resonant cavity housing, this housing and one and half housings of suppressor case, especially is connected with upper half shell fluid-tight ground, thus can be with the easy processability of less elements kind realization exhaust silencer.The connection of fluid-tight realizes suiting by hard solder.
In this regulation, resonatron has spacing in the face of the end and the resonant cavity of described noise elimination cavity.Therefore waste gas is essential through a definite distance in the resonatron before arriving resonant cavity.Further improve acoustic characteristics thus.This spacing is at least 30% of suppressor case height and suits, and wherein highly is the bigger suppressor case length on the two and half shell junction surfaces.Therefore for being the cross section of rectangle substantially on junction surface, this highly is long rectangular edges.It is favourable advancing by leaps and bounds from resonant cavity that junction surface that the resonatron portion segment base of noise elimination cavity originally is parallel to two and half housings extends, and wherein longitudinal center's axis of resonatron extends on the short transverse of exhaust silencer especially substantially.Therefore waste gas can just flow into resonatron after by noise elimination cavity.The flow direction that flows into resonatron in addition needs to change.Resonant cavity is arranged on suppressor case inside for this reason.Therefore different for the necessary structure space of the exhaust silencer with resonant cavity with the structure space of the exhaust silencer that does not have resonant cavity.Under the situation in same structure space, realize eliminating the noise better by the layout of resonant cavity.In addition in order to obtain better acoustic characteristics and stipulate that resonant cavity is full of by glass fibre, especially glass wool.
Silencing apparatus comprises that two noise elimination cavities are favourable, and they are spaced from each other by partition wall, and catalyzer wherein is set on partition wall.It is favourable that resonant cavity is arranged on the noise elimination cavity the inside that is positioned at following current on the exhaust gas flow direction.
Description of drawings
By means of accompanying drawing one embodiment of the present of invention are described below.In the accompanying drawing:
Fig. 1-3 is the stereogram of an exhaust silencer,
Fig. 4 is the exploded view of exhaust silencer among Fig. 1-3,
Fig. 5 is the side view of exhaust silencer among Fig. 1-3,
Fig. 6 is the sectional drawing of VI-VI hatching in Fig. 5,
Fig. 7 is the sectional drawing of VII-VII hatching in Fig. 5,
Fig. 8 is the sectional drawing of VIII-VIII hatching in Fig. 6,
Fig. 9 is the side view on the arrow IX direction in Figure 10 of exhaust silencer resonatron shown in Fig. 1-8,
Figure 10 is the side view of exhaust silencer resonatron among Fig. 1-8,
Figure 11 is the resonatron side view on the arrow XI direction among Figure 10.
Embodiment
Have 2, one suction ports of a suppressor case 3 at the exhaust silencer 1 shown in Fig. 1 to 3 neutral body and feed housing.Suction port 3 is by constituting for the perforate of rectangle substantially and leading at the noise elimination cavity shown in Fig. 65.In the both sides of suction port 3 fixed hole 28 is set, exhaust silencer 1 can be fixed on the internal-combustion engine on the fixed hole, especially be fixed on hand-held portability work apparatus, the motor as mechanical chain saw, cutting machine.Derive a tubular shape relief opening 4 from exhaust silencer 1.Suppressor case 2 mainly is made of two and half housings.The rinforcement bar 24 that has two substantially parallel extensions in the face of lower half shell 10 internal-combustion engine, that have suction port 3.The upper half shell 9 that deviates from internal-combustion engine has a cross rinforcement bar 25, and they are roughly to two parallel rinforcement bar 24 opposite disposed.Two and half housings 9,10 interconnect on its edge 14,13, wherein edge 13 crimpings of lower half shell 10 and surround the edge 14 of upper half shell 9.
Shown in the upright figure of the decomposition among Fig. 4, between two edges 13,14, be provided with one around plane sealing 12.11, one resonatrons 7 of a resonant cavity housing are set in suppressor case 2 inside pass the resonant cavity housing.Pass suppressor case 2 at resonatron 7 both sides cover 15, these are enclosed within the edge 29 that its end in the face of upper half shell 9 has an expansion.Not only upper half shell 9 but also lower half shell 10 all have lateral projections 30, and they are basically perpendicular to edge 13,14 extensions of half housing and are used for improving stability.Resonant cavity housing 11 have one around edge 31, the resonant cavity shell can be fixed on the upper half shell 9 by it.Resonant cavity housing 11 has perforate 32, and its profile is corresponding to the external frame of resonatron 7.
Especially shown in the sectional view among Fig. 6, resonatron 7 is arranged on resonant cavity 6 inside that are made of resonant cavity housing 11 on the part of its longitudinal length.Resonant cavity housing 11 is with respect to the noise elimination cavity 5 that constitutes in suppressor case 2 fluid-tight ground sealing as far as possible.The resonant cavity shell is by upper half shell 9 sealings.The edge 31 of resonant cavity housing 11 and upper half shell 9 are connected by hard solder for this reason.But also can adopt other to connect aptly.Resonatron 7 has a large amount of perforates 8 in resonant cavity 6 scopes, they constitute the sound wave linkage structure between resonatron 7 inside and the resonant cavity 6.The volume of resonant cavity 6 less than, particularly much smaller than the volume of noise elimination cavity 5.The minimum part that the volume of resonant cavity 6 accounts for noise elimination cavity 5 volumes is favourable.
Resonatron 7 is from resonant cavity 6 noise elimination cavity 5 of advancing by leaps and bounds.Has a spacing a in this end 18 that is arranged on the resonatron 7 of noise elimination cavity 5 the insides with resonant cavity shell 11.Spacing a is that 30% of height h shown in Figure 5 suits.The height h represent exhaust silencer 1 on the junction surface 23 of half housing 9,10 than length.For the basic of suppressor case 2 on junction surface 23 be the cross section of rectangle, and highly h represents to surround the long limit of the rectangle of cross section.In noise elimination cavity 5, the portion's section 22 that is arranged on the resonatron 7 of resonant cavity 6 outsides is fixed on the upper half shell 9 by spot welding by a connecting sheet 17.Connecting sheet 17 is fixed on by hard solder on the end 18 of suppressor case 2 inside of advancing by leaps and bounds of resonatron 7.Longitudinal center's axis 21 of portion's section 22 is basically parallel to junction surface 23, extends on height h direction especially substantially.Relief opening 4 from exhaust silencer 1 is made of resonatron 7.Resonatron 7 extends on resonant cavity 6 interior curve ground.In upper half shell 9, constitute a through port 16, import resonatron 7 by it.Longitudinal center's axis 21 of the resonatron 7 on relief opening 4 is with respect to the vertical line 33 of junction surface 23 angle beta that tilts, and this angle suits to about 20 ° scope at 5 °.But also can select other suitable inclination angle.Longitudinal center's axis 21 has spacing e with point of intersection at the upper half shell 9 of relief opening 4 location with longitudinal center's axis 34 of cover 15, the central axis that its also is simultaneously suction port 3, and this spacing suits in the scope of 20mm to 40mm.
As shown in Figure 5, constitute a connecting plate 19 on the edge 13,14 of half housing 9,10, it has a center fixation hole 20.Exhaust silencer 1 width is b, and this width that records on junction surface 23 is less than height h.Height h for general mounting point is positioned at Vertical direction substantially in the general work position of work apparatus.
Shown in Fig. 7 sectional view, the longitudinal center's axis 34 of cover 15 and vertical line 33 shapes of junction surface 23 are α in an angle, and this angle is between 5 ° to 40 °, between especially about 20 ° to 30 °.Rinforcement bar 24 is made of projection and rinforcement bar 25 is made of groove.Suction port 3 and the perforate 28 that is arranged on suction port 3 both sides have spacing c for junction surface 23, and this spacing suits in the scope of 30mm to 60mm.Shown in Fig. 8 sectional view, cover 15 begins to put in through port 27 upper half shell 9 from upper half shell 9.Cover 15 has a crimp 35 in its end in the face of lower half shell 10, and it leans on reinforcing element 26.Therefore reinforcing element 26 is arranged between the crimp 35 of lower half shell 10 and cover 15.Reinforcing element 26 prevents that lower half shell 10 from rupturing at fixed area.For exhaust silencer 1 being fixed on the internal-combustion engine this exhaust silencer is tightened on the internal-combustion engine by the bolt that puts in cover 15, bolt passes the perforate on the fastening element 26.Have an edge 29 at the location of upper half shell 9 cover 15, this edge leans on through port 27 and fixed cover 15 thus.Cover 15 is fixed on the upper half shell 9 by addition thereto and meets purpose.
At resonatron shown in Fig. 9 to 11 7.Resonatron 7 has edge 36 in the side, they are substantially at diametrically opposite.Edge 36 extends to the outlet of resonatron 7 from resonant cavity 6 from the end 18 that resonatron 7 is arranged on noise elimination cavity 5 the insides.Termination seamed edge 37 at this edge 36 leans on the inboard of upper half shell 9.Resonatron 7 is fixed in its position.The half-breadth f at edge 36 can be in the scope of 0.3mm to 1.5mm.Resonatron 7 has a large amount of perforates 8 in the zone of resonant cavity 6.Perforate 8 is circle and the diameter d scope at 1mm to 4mm, especially about 2mm.Resonatron 7 has 100 to 150, and especially about 120 perforates 8 are favourable.The gross area of perforate 8 is 200mm
2To 500mm
2, 350mm especially
2To 400mm
2By the sound wave linkage structure between perforate 8 formation resonatrons 7 and the resonant cavity 6.In order to realize eliminating the noise better, resonant cavity 6 all is full of by glass fibre, especially glass wool or other muffler material.
It is favourable that noise elimination cavity 5 is divided into two noise elimination cavities.On junction surface 23, extend a partition wall especially for this reason.On partition wall, catalyzer can be set.Between resonatron inside and resonant cavity, adopt the sound wave linkage structure of other form to replace round hole to suit.Resonant cavity also can be arranged on suppressor case 2 outsides.Arrange that at the exhaust port area place resonant cavity is favourable, but resonant cavity is arranged on exhaust silencer suction port location also meets purpose.
It is favourable that the present invention is applied to float amount internal-combustion engine, and its discharge capacity is at about 20cm
3To about 250cm
3Scope.
Claims (20)
1. exhaust silencer, be used for hand-held portability work apparatus, as mechanical chain saw, internal-combustion engine on the like instrument such as cutting machine, this exhaust silencer has a suppressor case (2) that surrounds at least one noise elimination cavity (5), suppressor case (2) has the suction port (3) and the relief opening (4) that are used for from the waste gas of internal-combustion engine, it is characterized in that, described exhaust silencer (1) has one with respect to noise elimination cavity (5) resonant cavity (6) of fluid-tight sealing as far as possible, carry the resonatron (7) of waste gas to pass resonant cavity (6) for one, wherein between resonatron (7) and resonant cavity (6), constitute a sound wave linkage structure.
2. exhaust silencer as claimed in claim 1 is characterized in that, described resonatron (7) is arranged between noise elimination cavity (5) and the relief opening (4) along exhaust gas flow direction.
3. exhaust silencer as claimed in claim 1 or 2 is characterized in that, described resonatron (7) has perforate (8), by the sound wave linkage structure of described perforate formation for resonant cavity (6).
4. exhaust silencer as claimed in claim 3 is characterized in that, the gross area of described perforate (8) is 200mm
2To 500mm
2, 350mm especially
2To 400mm
2
5. as claim 3 or 4 described exhaust silencers, it is characterized in that described perforate (8) is circular and diameter (d) is 1mm to 4mm, especially about 2mm.
6. as each described exhaust silencer in the claim 3 to 5, it is characterized in that described resonatron (7) has 100 to 150, especially about 120 perforates (8) of leading to resonant cavity (6).
7. as each described exhaust silencer in the claim 1 to 6, it is characterized in that described resonatron (7) extends agley in resonant cavity (6).
8. as each described exhaust silencer in the claim 1 to 7, it is characterized in that the end that resonatron (7) deviates from described noise elimination cavity (5) constitutes relief opening (4).
9. as each described exhaust silencer in the claim 1 to 8, it is characterized in that described suction port (3) is opposed with relief opening (4) substantially.
10. as each described exhaust silencer in the claim 1 to 9, it is characterized in that described suppressor case (2) is by two and half housings, promptly one comprises that the lower half shell (10) of suction port (3) and a upper half shell (9) constitute.
11. exhaust silencer as claimed in claim 10 is characterized in that, described resonant cavity (6) is made of resonant cavity housing (11), and this housing is connected hermetically with one and half shell fluid of suppressor case (2).
12. exhaust silencer as claimed in claim 11 is characterized in that, described resonant cavity housing (11) is connected with upper half shell (9).
13., it is characterized in that described resonant cavity housing (11) is connected by hard solder with half housing as claim 11 or 12 described exhaust silencers.
14., it is characterized in that resonatron (7) has spacing (a) in the face of the end (18) of described noise elimination cavity (5) with resonant cavity (6) as each described exhaust silencer in the claim 1 to 13.
15. exhaust silencer as claimed in claim 14 is characterized in that, described spacing (a) be at least suppressor case (2) highly (h) 30%, wherein height (h) is bigger suppressor case (a 2) length on the two and half shell junction surfaces (23).
16. as claim 14 or 15 described exhaust silencers, it is characterized in that, resonatron (7) extends from described resonant cavity (6) junction surface (23) that portion's section (22) of noise elimination cavity (5) the inside is basically parallel to two and half housings of advancing by leaps and bounds, and longitudinal center's axis (21) of wherein said resonatron (7) is to extend on height (h) direction of exhaust silencer (1) especially substantially.
17., it is characterized in that described resonant cavity (6) is arranged on suppressor case (2) inside as each described exhaust silencer in the claim 1 to 16.
18., it is characterized in that described resonant cavity (6) is full of by glass fibre, especially glass wool as each described exhaust silencer in the claim 1 to 17.
19., it is characterized in that described exhaust silencer (1) comprises two noise elimination cavities as each described exhaust silencer in the claim 1 to 18, they are spaced from each other by partition wall, and catalyzer wherein is set on partition wall.
20. exhaust silencer as claimed in claim 19 is characterized in that, described resonant cavity (6) is arranged on the noise elimination cavity the inside that is positioned at following current on the exhaust gas flow direction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10235408A DE10235408A1 (en) | 2002-08-02 | 2002-08-02 | Exhaust gas silencer for internal combustion engine in portable powered appliance has resonance chamber sealed fluidtight in relation to damping chamber and through which is led exhaust gas-carrying resonance pipe |
| DE10235408.1 | 2002-08-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1478994A true CN1478994A (en) | 2004-03-03 |
| CN100559018C CN100559018C (en) | 2009-11-11 |
Family
ID=27798323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031525202A Expired - Fee Related CN100559018C (en) | 2002-08-02 | 2003-08-01 | Exhaust silencer |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20050155818A1 (en) |
| CN (1) | CN100559018C (en) |
| DE (1) | DE10235408A1 (en) |
| GB (1) | GB2392954B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101203663B (en) * | 2005-06-23 | 2010-05-19 | 本田技研工业株式会社 | Muffler of general-purpose engine |
| CN111512038A (en) * | 2017-12-20 | 2020-08-07 | 梦达驰德国有限公司 | Wide-band muffler for motor vehicle engine |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10361216B4 (en) * | 2003-12-24 | 2012-11-15 | Andreas Stihl Ag & Co. Kg | exhaust silencer |
| US9261009B2 (en) * | 2013-07-03 | 2016-02-16 | Honda Motor Co., Ltd. | Automotive muffler |
| USD745840S1 (en) * | 2014-06-09 | 2015-12-22 | General Electric Company | Muffler |
| USD836513S1 (en) | 2017-02-08 | 2018-12-25 | General Electric Company | Ribbed convolution muffler |
| CN109339998B (en) * | 2018-09-30 | 2020-10-09 | 安徽江淮汽车集团股份有限公司 | Silencer |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2166408A (en) * | 1938-09-01 | 1939-07-18 | Burgess Battery Co | Silencer |
| US3557903A (en) * | 1967-09-26 | 1971-01-26 | Tenneco Inc | Muffler having mechanical connection of tube to partition |
| US4032310A (en) * | 1974-05-15 | 1977-06-28 | Ignoffo Vincent E | Muffler and exhaust gas purifier for internal combustion engines |
| US4372421A (en) * | 1975-07-18 | 1983-02-08 | Otis Jackson | Vehicle exhaust system |
| US4124091A (en) * | 1975-12-24 | 1978-11-07 | Toyota Jidosha Kogyo Kabushiki Kaisha | Silencer for an internal combustion engine |
| US4116303A (en) * | 1976-11-08 | 1978-09-26 | Mcdonnell Douglas Corporation | Exhaust muffler |
| JPS577770Y2 (en) * | 1977-01-13 | 1982-02-15 | ||
| US4327817A (en) * | 1978-10-13 | 1982-05-04 | Rensselaer Polytechnic Institute | Method and apparatus for treating exhaust gases particularly for air-operated tools |
| US4263981A (en) * | 1979-01-31 | 1981-04-28 | Allied Chemical Corporation | Vacuum pump exhaust muffler |
| US4296832A (en) * | 1979-11-14 | 1981-10-27 | Nelson Industries, Inc. | Exhaust muffler |
| US4361206A (en) * | 1980-09-02 | 1982-11-30 | Stemco, Inc. | Exhaust muffler including venturi tube |
| US4690245A (en) * | 1983-03-17 | 1987-09-01 | Stemco, Inc. | Flattened venturi, method and apparatus for making |
| US4580657A (en) * | 1983-06-16 | 1986-04-08 | Donaldson Company, Inc. | Integral fluted tube for sound suppression and exhaust ejection |
| GB2285283B (en) * | 1993-12-24 | 1998-02-25 | Apex Co Ltd | Muffler for an internal combustion engine |
| US5756945A (en) * | 1994-08-24 | 1998-05-26 | Toyoda Gosei Co., Ltd. | Muffler |
| DE29609405U1 (en) * | 1996-05-25 | 1996-08-14 | Stihl Maschf Andreas | Exhaust silencer for internal combustion engines |
| JP3955114B2 (en) * | 1996-10-08 | 2007-08-08 | 東京濾器株式会社 | Catalytic exhaust system for internal combustion engine |
| SE9703582L (en) * | 1997-10-01 | 1999-04-02 | Electrolux Ab | Catalytic converter muffler |
| US6158546A (en) * | 1999-06-25 | 2000-12-12 | Tenneco Automotive Inc. | Straight through muffler with conically-ended output passage |
| US6089348A (en) * | 1999-09-22 | 2000-07-18 | Bokor Manufacturing Inc. | Blower noise silencer |
| SE9903403L (en) * | 1999-09-22 | 2001-03-23 | Electrolux Ab | Two stroke internal combustion engine |
| JP2001263038A (en) * | 2000-03-22 | 2001-09-26 | Calsonic Kansei Corp | Pre-muffle structure with resonator pipe |
-
2002
- 2002-08-02 DE DE10235408A patent/DE10235408A1/en not_active Ceased
-
2003
- 2003-07-31 GB GB0317984A patent/GB2392954B/en not_active Expired - Fee Related
- 2003-08-01 CN CNB031525202A patent/CN100559018C/en not_active Expired - Fee Related
- 2003-08-01 US US10/633,268 patent/US20050155818A1/en not_active Abandoned
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101203663B (en) * | 2005-06-23 | 2010-05-19 | 本田技研工业株式会社 | Muffler of general-purpose engine |
| CN111512038A (en) * | 2017-12-20 | 2020-08-07 | 梦达驰德国有限公司 | Wide-band muffler for motor vehicle engine |
| CN111512038B (en) * | 2017-12-20 | 2022-06-14 | 梦达驰德国有限公司 | Wide-band muffler for motor vehicle engine |
| US11434855B2 (en) | 2017-12-20 | 2022-09-06 | Montaplast Gmbh | Broad-band resonance silencer, in particular for a motor vehicle engine |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2392954B (en) | 2004-10-20 |
| CN100559018C (en) | 2009-11-11 |
| GB0317984D0 (en) | 2003-09-03 |
| US20050155818A1 (en) | 2005-07-21 |
| GB2392954A8 (en) | 2004-09-10 |
| GB2392954A (en) | 2004-03-17 |
| DE10235408A1 (en) | 2004-02-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091111 |