CN101210508A - Variable geometry muffler of an exhaust system of an internal combustion engine - Google Patents
Variable geometry muffler of an exhaust system of an internal combustion engine Download PDFInfo
- Publication number
- CN101210508A CN101210508A CNA2007103063375A CN200710306337A CN101210508A CN 101210508 A CN101210508 A CN 101210508A CN A2007103063375 A CNA2007103063375 A CN A2007103063375A CN 200710306337 A CN200710306337 A CN 200710306337A CN 101210508 A CN101210508 A CN 101210508A
- Authority
- CN
- China
- Prior art keywords
- silencing apparatus
- capping
- bypass opening
- wire loops
- compliant foil
- 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.)
- Pending
Links
Images
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
- F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
- F01N1/166—Silencing apparatus characterised by method of silencing by using movable parts for changing gas flow path through the silencer or for adjusting the dimensions of a chamber or a pipe
-
- 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
- F01N1/083—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using transversal baffles defining a tortuous path for the gases or successively throttling gas flow
-
- 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
- F01N1/084—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases flowing through the silencer two or more times longitudinally in opposite directions, e.g. using parallel or concentric tubes
-
- 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
- F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
- F01N1/161—Silencing apparatus characterised by method of silencing by using movable parts for adjusting resonance or dead chambers or passages to resonance or dead chambers
- F01N1/163—Silencing apparatus characterised by method of silencing by using movable parts for adjusting resonance or dead chambers or passages to resonance or dead chambers by means of valves
-
- 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
- F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
- F01N1/165—Silencing apparatus characterised by method of silencing by using movable parts for adjusting flow area
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
A variable geometry muffler (1) for an exhaust system of an internal combustion engine; the muffler (1) displays: a tubular body (2), which displays an inlet opening (3), an outlet opening (4) and a labyrinth (5) which determines a path for the exhaust gases from the inlet opening (3) to the outlet opening (4); and a bypass valve (10), which is arranged within the tubular body (2) to modify the geometry of the labyrinth (5) according to the exhaust gas pressure; the bypass valve (10) displays a lid (11), which is coupled to a bypass opening (12) and is mobile from a closed position of the bypass opening (12) to an opening position of the bypass opening (12) by effect of the exhaust gas pressure and against the bias of an elastic body which tends to maintain the lid (11) in the closed position; the elastic body consists of an elastic foil (13), which is folded as a ''U'' and displays a mobile end (14) which supports the lid (11) and a fixed end (15) which is opposite to the mobile end (14) and which is integral with a fixed part of the muffler (1).
Description
Technical field
The present invention relates to a kind of silencing apparatus of variable geometry of the vent systems that is used for internal-combustion engine.
Background technique
Internal-combustion engine is provided with vent systems, and described vent systems has in the gas introducing atmosphere that burning is produced and the function of while limit noise and pollutant content.Vent systems of the prior art comprises that at least one has the silencing apparatus of body, and it has elliptic cross-section usually and is provided with entrance and exit.Be limited with labyrinth (labyrinth) in the body, it determines the path that waste gas exports from entering the mouth to; This labyrinth is formed by partition (or dividing plate) and pipe usually, described partition (or dividing plate) laterally the longitudinal axis of body (promptly perpendicular to) setting is to limit the chamber in body, described Guan Ze is connected to each other described chamber.
In traditional silencing apparatus, the back pressure that is produced by silencing apparatus (being the pressure loss that waste gas is measured gained when passing silencing apparatus) increases along with the increase (along with the increase of waste gas mean velocity) of engine speed forms exponentially.Therefore, as avoiding when engine speed is high producing too high back pressure value, the noise attentuation deterioration of will having to when engine speed hangs down then.Thus, preferably under the situation that changes engine speed, make the back pressure that produces by silencing apparatus more constant,, when engine speed is high, form limited back pressure simultaneously so that when engine speed is low, obtain good noise attentuation.
In order to make when the change of engine speed the back pressure that produces by silencing apparatus more constant, someone proposes to use at least one bypass valve, and it is by pressure control (being that it is the passive device that does not have motor component) and have the function of geometrical construction that changes the labyrinth of silencing apparatus according to exhaust gas pressure (promptly according to engine speed).An example of bypass valve has been proposed among the patent application WO2005/059327A1.
Known bypass valve has capping, it is coupled to the partition that passes silencing apparatus and the bypass opening that forms, and is subjected to the effect of exhaust gas pressure and overcomes the bias voltage of the spring that is tending towards making capping maintain operating position and move to the open position of bypass opening from the operating position of bypass opening.The most general solution is to be hinged to capping on the partition of silencing apparatus and to make it be coupled to torsion spring.
The reliability of the long-time use of known bypass valve is limited as can be seen, is tending towards stopping up because the slip coupling connection portion of this known bypass valve (being the rotation section of the articulating point and the spring of capping) is subjected to the influence of the formed dirt of waste gas or works to be different from the mode that proposes in the design phase.
Summary of the invention
The purpose of this invention is to provide a kind of silencing apparatus of variable geometry of the vent systems that is used for internal-combustion engine, described silencing apparatus does not have above-mentioned shortcoming, and particularly, described silencing apparatus is made easily and can be saved cost.
According to the present invention, a kind of silencing apparatus of variable geometry of the vent systems that is used for internal-combustion engine is provided, described silencing apparatus comprises:
Body, it has the labyrinth in the path that inlet, outlet and definite waste gas exports from entering the mouth to; And
At least one bypass valve, it is arranged in the body to change the geometrical construction on labyrinth according to exhaust gas pressure;
Described bypass valve comprises capping, and described capping is coupled to the bypass opening and is subjected to the effect of exhaust gas pressure and overcomes the open position that is tending towards making capping maintain the elastomeric bias voltage of operating position and moves to the bypass opening from the operating position of bypass opening;
Described silencing apparatus is characterised in that described elastomer is made of the compliant foil that is bent into " U " shape, and described compliant foil has the mobile terminal and the fixed end relative with the mobile terminal and that become one with the standing part of silencing apparatus of the capping of being coupled to.
Description of drawings
Describe the present invention now with reference to accompanying drawing, accompanying drawing shows some indefiniteness examples of embodiments of the present invention, among the figure:
-Fig. 1 is the schematic perspective view of silencing apparatus constructed in accordance;
-Fig. 2 is the schematic representation on the labyrinth, inside of the silencing apparatus among Fig. 1;
-Fig. 3 is the side cross-sectional, view of the bypass valve of the silencing apparatus among Fig. 1;
-Fig. 4 is the schematic perspective view of the different mode of executions of the bypass valve among Fig. 3;
-Fig. 5 is the schematic perspective view of another mode of execution of the bypass valve among Fig. 3;
-Fig. 6 is the side view of the bypass valve among Fig. 5;
-Fig. 7 is the three-dimensional exploded view of the bypass valve among Fig. 5;
-Fig. 8 is the schematic perspective view of another mode of execution of the bypass valve among Fig. 3;
-Fig. 9 is the side cross-sectional, view of the bypass valve among Fig. 8;
-Figure 10 is the planimetric map that is used for the annular holding base of wire loops;
-Figure 11 is the sectional view along the line XI-XI of a thin portion among Figure 10; And
-Figure 12 is the sectional view along the line XII-XII of a thin portion among Figure 10.
Embodiment
In Fig. 1, mark 1 refers to the silencing apparatus of the vent systems that is used for internal-combustion engine (not shown) on the whole.Silencing apparatus 1 comprises body 2, and described body 2 has elliptic cross-section and is provided with inlet 3 and outlet 4, and the waste gas that is produced by internal-combustion engine enters body 2 through described inlet 3, and discharges from body 2 through described outlet 4.
As shown in Figure 2, determine that waste gas is limited to the inside of body 2 from 3 labyrinths 5 to outlet 4 path that enter the mouth.Labyrinth 59 is made up of partition 6 (or dividing plate) and pipe, wherein said partition 6 (or dividing plate) laterally the longitudinal axis 7 of body 2 (promptly perpendicular to) setting is to limit chamber 8 in body 2, described pipe 9 then makes chamber 8 be connected to each other.
Be suitable for being arranged in the body 2 according to the bypass valve 10 of the geometrical construction on the pressure change labyrinth 5 of waste gas; Particularly, in the mode of execution shown in Fig. 2, bypass valve 10 is coupled to partition 6, and described bypass valve 10 is suitable for making two chambers 8 that isolate mutually by partition 6 under normal conditions to be in direct connected state according to exhaust gas pressure.
As shown in Figure 3, bypass valve 10 comprises capping 11, and described capping 11 is coupled to bypass opening 12 and described capping 11 and is subjected to the effect of exhaust gas pressure and overcomes the elastomeric bias voltage that is tending towards making capping 11 maintain operating position and move to the open position (by being shown in dotted line among Fig. 3) of bypass opening 12 from the operating position (being illustrated by the solid line Fig. 3) of bypass opening 12.
Elastomer is made of the compliant foil 13 that is bent into " U " shape, described compliant foil 13 has the mobile terminal 14 of capping of being coupled to 11, and fixed end 15 relative with mobile terminal 14 and that become one with the standing part (specifically being and the partition 6 that bypass valve 10 wherein is installed) of silencing apparatus 1.
According to the mode of execution shown in Fig. 2,3,4,8 and 9, capping 11 is supported in the mobile terminal 14 of compliant foil 13.According to the mode of execution shown in Fig. 2 and 3, capping 11 is made of the extension of the mobile terminal 14 of compliant foil 13 and forms monolithic entity with compliant foil 13; Alternatively, according to the mode of execution shown in Fig. 4,8 and 9, the mobile terminal 14 of compliant foil 13 is connected to capping 11 by riveted joint, cooperation and/or welding.According to other mode of execution (not shown), capping 11 is supported by be provided with connecting element between mobile terminal 14 and capping 11 in the mobile terminal 14 of compliant foil 13, and wherein said connecting element is fixed to mobile terminal 14 and capping 11 simultaneously.
According to the mode of execution shown in Fig. 2 and Fig. 3, the fixed end 15 of compliant foil 13 is near the sidepiece setting of bypass opening 12, and directly fixing (usually by being threaded, riveting or welding) is to the partition 6 that bypass valve 10 wherein is installed.
According to the mode of execution shown in Fig. 4-9, the fixed end 15 of compliant foil 13 is near the sidepiece setting of bypass openings 12 and be fixed to supporting element 16, and described supporting element 16 fixing (usually by being threaded, riveting or welding) is to the partition 6 that bypass valve 10 wherein is installed.According to the mode of execution shown in Fig. 8 and 9, supporting element 16 has flat board, and it is arranged on the bypass opening 12 and at bypass opening 12 places has through hole 17.According to the mode of execution shown in Fig. 4-7, supporting element 16 shapes are as falling " U ".
According to the mode of execution shown in Fig. 5-7, capping 11 is hinged to supporting element 16, and described supporting element 16 fixing (usually by being threaded, riveting or welding) is to the partition 6 that bypass valve 10 wherein is installed; Like this, thus capping 11 rotatably install around spin axis and between operating position and open position, rotate.In this mode of execution, the mobile terminal 14 of compliant foil 13 places in the capping 11, and the fixed end 15 of compliant foil 13 then is coupled to supporting element 16 (promptly by described supporting element 16 supportings).Preferably, capping 11 is hinged to supporting element 6 by swivel pin 18, described swivel pin 18 and supporting element 16 integrally formed (being that capping 11 is rotated with respect to pin 18); In addition, compliant foil 13 partly surrounds pin 18.
According to preferred implementation, bypass valve 10 comprises wire loops 19, its be arranged on bypass opening 12 around to limit capping 11 butt element placed on it when being in the close position.According to the mode of execution shown in Fig. 2 and 3, bypass opening 12 forms and passes partition 6, and it has the annular holding base 20 that is used for wire loops 19.According to the mode of execution shown in Fig. 8 and 9, supporting element 16 has the annular holding base 20 that is used for wire loops 19.
In the mode of execution shown in Fig. 2 and 3, wire loops 19 has the rectangular cross-section, and holding base 20 is by " U " shape flanging formation of the partition 6 of the bottom of flattening energy clamping wire loops 19.In the mode of execution shown in Fig. 8-12, wire loops 19 has " L " tee section, and holding base 20 forms the following horizontal component of energy clamping wire loops 19.
Figure 10-12 illustrates the possible mode of execution of the annular holding base 20 of wire loops 19; Particularly, the holding base 20 shown in Figure 10-12 is made of a plurality of parts 21 of partition 6, and each in wherein said a plurality of parts 21 is arranged to define bypass opening 12 and is out of shape to grasp the horizontal component of wire loops 19.Alternatively, the part 21 of partition 6 is out of shape the opposition side with the horizontal component that grasps wire loops 19 in opposite direction.
Above-mentioned silencing apparatus 1 has a plurality of advantages, because it manufactures simple and saves cost, and its long-time reliability height that uses of while; The above results is owing to the use of compliant foil 13 makes bypass valve 10 not be achieved by the influence of the formed dirt of waste gas.
Claims (20)
1. the silencing apparatus (1) of the variable geometry of a vent systems that is used for internal-combustion engine, described silencing apparatus (1) comprising:
Body (2), it has the labyrinth (5) in inlet (3), outlet (4) and the path of definite waste gas from described inlet (3) to described outlet (4); And
At least one bypass valve (10), it is arranged in the described body (2) to change the geometrical construction of described labyrinth (5) according to exhaust gas pressure;
Described bypass valve (10) comprises capping (11), and described capping (11) is coupled to bypass opening (12) and under the effect of exhaust gas pressure and overcome the open position that is tending towards making described capping (11) maintain the elastomeric bias voltage of operating position and moves to described bypass opening (12) from the described operating position of described bypass opening (12);
Described silencing apparatus (1) is characterised in that, described elastomer is made of compliant foil (13), described compliant foil (13) is bent into " U " shape, and has the mobile terminal (14) that is coupled to described capping (11) and fixed end (15) relative with described mobile terminal (14) and that become one with the standing part of described silencing apparatus (1).
2. silencing apparatus as claimed in claim 1 (1), wherein, described capping (11) is supported in the mobile terminal (14) of described compliant foil (13).
3. silencing apparatus as claimed in claim 2 (1), wherein, described capping (11) is supported by be provided with connecting element between described mobile terminal (14) and described capping (11) in the mobile terminal (14) of described compliant foil (13), and wherein said connecting element is fixed to described mobile terminal (14) and described capping (11) simultaneously.
4. silencing apparatus as claimed in claim 1 (1), wherein, the fixed end (15) of described compliant foil (13) is near the sidepiece setting of described bypass opening (12).
5. silencing apparatus as claimed in claim 4 (1), wherein, the fixed end (15) of described compliant foil (13) is fixed to supporting element (16), and described supporting element (16) is fixed to the standing part of described silencing apparatus (1) and is arranged on described bypass opening (12) upward and at described bypass opening (12) locates to have through hole (17).
6. silencing apparatus as claimed in claim 1 (1), wherein, described capping (11) is made of the extension of the mobile terminal (14) of described compliant foil (13), and forms monolithic entity with described compliant foil (13).
7. silencing apparatus as claimed in claim 1 (1), wherein, the fixed end (15) that the mobile terminal (14) of described compliant foil (13) directly is fixed to described capping (11) and described compliant foil (13) is fixed to supporting element (16), and described supporting element (16) then is fixed on the standing part of described silencing apparatus (1).
8. silencing apparatus as claimed in claim 7 (1), wherein, described supporting element (16) shape is as falling " U ".
9. silencing apparatus as claimed in claim 1 (1), wherein, described capping (11) is hinged to the standing part of described silencing apparatus (1) and the mobile terminal (14) of described compliant foil (13) places in the described capping (11).
10. silencing apparatus as claimed in claim 9 (1), wherein, be provided with the supporting element (16) that the standing part with described silencing apparatus (1) becomes one, described supporting element (16) holds the fixed end (15) of described compliant foil (13) and supports the swivel pin (18) of described capping (11).
11. silencing apparatus as claimed in claim 10 (1), wherein, described pin (18) forms as one with described supporting element (16) and described capping (11) is rotated with respect to described pin (18).
12. silencing apparatus as claimed in claim 10 (1), wherein, described pin (18) forms as one with described capping (11) and rotates with respect to described supporting element (16).
13. silencing apparatus as claimed in claim 10 (1), wherein, described compliant foil (13) partly surrounds described pin (18).
14. silencing apparatus as claimed in claim 1 (1), wherein, described bypass valve (10) comprises wire loops (19), described wire loops (19) be arranged on described bypass opening (12) around to limit described capping (11) butt element placed on it when being in described operating position.
15. silencing apparatus as claimed in claim 14 (1), wherein, described bypass opening (12) forms and passes partition (6), and described partition (6) has the annular holding base (20) that is used for described wire loops (19).
16. silencing apparatus as claimed in claim 15 (1), wherein, described wire loops (19) has the rectangular cross-section; Described holding base (20) is made of " U " shape flanging of the described partition (6) of the bottom of flattening the energy described wire loops of clamping (19).
17. silencing apparatus as claimed in claim 15 (1), wherein, described wire loops (19) has " L " tee section; Described holding base (20) is made of a plurality of parts of described partition (6), and each part in described a plurality of parts all is arranged to define described bypass opening (12) and is out of shape to grasp the following horizontal component of described wire loops (19).
18. silencing apparatus as claimed in claim 17 (1), wherein, a plurality of parts (21) of described partition (6) alternately are out of shape the opposition side with the horizontal component that grasps described wire loops (19) in opposite direction.
19. the silencing apparatus (1) of the variable geometry of a vent systems that is used for internal-combustion engine, described silencing apparatus (1) comprising:
Body (2), it has the labyrinth (5) in inlet (3), outlet (4) and the path of definite waste gas from described inlet (3) to described outlet (4); And
A bypass valve (10), it is arranged in the described body (2) to change the geometrical construction of described labyrinth (5) according to exhaust gas pressure;
Described bypass valve (10) comprises capping (11) and wire loops (19), described capping (11) is coupled to and forms the bypass opening (12) that passes partition (6) and under the effect of exhaust gas pressure and overcome the elastomeric bias voltage that is tending towards making described capping (11) maintain operating position and move to the open position of described bypass opening (12) from the described operating position of described bypass opening (12), described wire loops (19) have " L " tee section and be arranged on described bypass opening (12) around to limit described capping (11) butt element placed on it when being in the close position;
Described silencing apparatus (1) is characterised in that, described partition (6) has the annular holding base (20) that is used for described wire loops (19) that a plurality of parts (21) by described partition (6) form, and each part in described a plurality of parts (21) all is arranged to define described bypass opening (12) and distortion to grasp the horizontal component of described wire loops (19).
20. silencing apparatus as claimed in claim 19 (1), wherein, a plurality of parts (21) of described partition (6) alternately are out of shape the opposition side with the horizontal component that grasps described wire loops (19) in opposite direction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP06425877.5 | 2006-12-29 | ||
| EP06425877A EP1939416B1 (en) | 2006-12-29 | 2006-12-29 | Variable geometry muffler fo an exhaust system of an internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101210508A true CN101210508A (en) | 2008-07-02 |
Family
ID=38016665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007103063375A Pending CN101210508A (en) | 2006-12-29 | 2007-12-28 | Variable geometry muffler of an exhaust system of an internal combustion engine |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US20080156578A1 (en) |
| EP (1) | EP1939416B1 (en) |
| CN (1) | CN101210508A (en) |
| BR (1) | BRPI0705651A (en) |
| DE (1) | DE602006008646D1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953785A (en) * | 2012-10-08 | 2013-03-06 | 上海狮虎能源科技发展有限公司 | External muffler for variable frequency generator set |
| CN110017198A (en) * | 2017-12-12 | 2019-07-16 | 佛吉亚排放控制技术美国有限公司 | Mixer and valve module |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080121458A1 (en) * | 2006-11-29 | 2008-05-29 | Norris Gregory Sturgis | Harmonic tone exhaust extension |
| KR101251728B1 (en) * | 2010-09-07 | 2013-04-05 | 현대자동차주식회사 | Muffler for vehicle |
| JP5484374B2 (en) | 2011-02-17 | 2014-05-07 | 本田技研工業株式会社 | Exhaust muffler |
| JP6251117B2 (en) * | 2014-04-28 | 2017-12-20 | フタバ産業株式会社 | Silencer |
| KR101596701B1 (en) | 2014-07-28 | 2016-02-23 | 현대자동차주식회사 | Leaf spring type variable valve |
| JP7359817B2 (en) * | 2021-10-06 | 2023-10-11 | フタバ産業株式会社 | Valve mounting structure |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60178918A (en) * | 1984-02-27 | 1985-09-12 | Suzuki Motor Co Ltd | Muffler of internal-combustion engine |
| US4549741A (en) * | 1984-06-04 | 1985-10-29 | Metex Corporation | Combination metal and knitted wire mesh gasket |
| US4635899A (en) * | 1985-03-25 | 1987-01-13 | Eshland Enterprises, Inc. | Air inlet valve subassembly with replaceable seal |
| DE4323642A1 (en) * | 1993-07-15 | 1995-01-19 | Hatz Motoren | Muffler for internal combustion engines, in particular single-cylinder diesel engines |
| US5452578A (en) * | 1994-02-22 | 1995-09-26 | Barber; Dale | Exhaust cutout device |
| US5614699A (en) * | 1994-05-09 | 1997-03-25 | Nissan Motor Co., Ltd. | Automobile exhaust noise suppressor |
| JP3379254B2 (en) * | 1994-12-26 | 2003-02-24 | 日産自動車株式会社 | Exhaust silencer |
| DE29612708U1 (en) * | 1995-07-28 | 1996-10-02 | Leistritz Abgastech | Variable acoustics |
| US5984045A (en) * | 1997-02-14 | 1999-11-16 | Nissan Motor Co., Ltd. | Engine exhaust noise suppressor |
| DE69902085T2 (en) * | 1999-02-18 | 2003-01-30 | Hyundai Motor Co Ltd | Semi-active silencer for internal combustion engines |
| JP4037571B2 (en) * | 1999-08-30 | 2008-01-23 | カルソニックカンセイ株式会社 | Pressure switching valve device |
| JP3705969B2 (en) * | 1999-10-21 | 2005-10-12 | 本田技研工業株式会社 | Valve unit for silencer |
| JP2002089257A (en) * | 2000-09-11 | 2002-03-27 | Calsonic Kansei Corp | Valve for control muffler and valve element assembling method of valve for control muffler |
| JP2002089256A (en) * | 2000-09-20 | 2002-03-27 | Calsonic Kansei Corp | Valve for control muffler |
| DE10128949A1 (en) * | 2001-06-19 | 2003-07-10 | Faurecia Abgastechnik Gmbh | exhaust flap |
| JP3738000B2 (en) * | 2002-10-07 | 2006-01-25 | 本田技研工業株式会社 | Valve unit for silencer |
| FR2863659B1 (en) | 2003-12-16 | 2007-10-05 | Faurecia Sys Echappement | DEVICE FOR SHUTTING A CONDUIT OF AN EXHAUST LINE |
-
2006
- 2006-12-29 DE DE602006008646T patent/DE602006008646D1/en active Active
- 2006-12-29 EP EP06425877A patent/EP1939416B1/en not_active Expired - Fee Related
-
2007
- 2007-12-20 US US11/961,388 patent/US20080156578A1/en not_active Abandoned
- 2007-12-27 BR BRPI0705651-6A patent/BRPI0705651A/en not_active Application Discontinuation
- 2007-12-28 CN CNA2007103063375A patent/CN101210508A/en active Pending
-
2009
- 2009-05-20 US US12/469,059 patent/US20090229911A1/en not_active Abandoned
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953785A (en) * | 2012-10-08 | 2013-03-06 | 上海狮虎能源科技发展有限公司 | External muffler for variable frequency generator set |
| CN110017198A (en) * | 2017-12-12 | 2019-07-16 | 佛吉亚排放控制技术美国有限公司 | Mixer and valve module |
| CN110017198B (en) * | 2017-12-12 | 2021-08-10 | 佛吉亚排放控制技术美国有限公司 | Mixer and valve assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1939416B1 (en) | 2009-08-19 |
| US20080156578A1 (en) | 2008-07-03 |
| US20090229911A1 (en) | 2009-09-17 |
| BRPI0705651A (en) | 2008-08-19 |
| EP1939416A1 (en) | 2008-07-02 |
| DE602006008646D1 (en) | 2009-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101210508A (en) | Variable geometry muffler of an exhaust system of an internal combustion engine | |
| US20040178015A1 (en) | Muffler with variable damping characteristic | |
| CN103270262B (en) | Snap-action valve for gas extraction system | |
| US7958728B2 (en) | Device for turbocharging an internal combusting engine comprising a pulsation damping chamber | |
| US7086498B2 (en) | Noise attenuation device for a vehicle exhaust system | |
| US7131514B2 (en) | Noise attenuation device for a vehicle exhaust system | |
| CN101749093B (en) | Exhaust system of an internal combustion engine | |
| US20100158758A1 (en) | Gas Sensor Assembly | |
| US20130133631A1 (en) | System to measure parameters of a particulate laden flow | |
| JPH01253560A (en) | Resonance type muffler | |
| JP4411809B2 (en) | Air cleaner for internal combustion engine | |
| JP6418263B2 (en) | Engine exhaust system | |
| US10550750B2 (en) | Exhaust device of engine | |
| CN101063419B (en) | Exhaust gas discharging control system | |
| CN204239106U (en) | Gas-entered passageway baffler and gas-entered passageway silene system | |
| CN112746884A (en) | Exhaust system of engine | |
| JP4048931B2 (en) | EGR device for engine | |
| CN113906199B (en) | catalytic converter | |
| EP3321495B1 (en) | Pressure measurement apparatus for an engine | |
| CN108119216B (en) | Exhaust muffler and method of manufacturing the same | |
| CN102434336A (en) | Integral type air inlet pipe of electronic fuel injection engine | |
| JP2001140640A (en) | Exhaust device | |
| CN114687897A (en) | Broadband silencer structure | |
| CN100439671C (en) | Exhaust gas purification device | |
| US20040003650A1 (en) | Device for determining at least one parameter of a medium flowing through a pipe,comprising a filter for receiving harmful substances in said pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080702 |