CN104912689A - Sealing structure of vehicle exhaust system and sealing method - Google Patents
Sealing structure of vehicle exhaust system and sealing method Download PDFInfo
- Publication number
- CN104912689A CN104912689A CN201510379513.2A CN201510379513A CN104912689A CN 104912689 A CN104912689 A CN 104912689A CN 201510379513 A CN201510379513 A CN 201510379513A CN 104912689 A CN104912689 A CN 104912689A
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- CN
- China
- Prior art keywords
- adpting flange
- exhaust system
- automobile exhaust
- sealing configuration
- seal ring
- 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
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F11/00—Arrangements of sealings in combustion engines
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention discloses a sealing structure of a vehicle exhaust system and a sealing method. The sealing structure comprises a first connecting flange and a second connecting flange connected with the first connecting flange. A sealing ring is arranged in a cavity formed by connection between the first connecting flange and the second connecting flange. The vehicle exhaust system is sealed in such a manner that the sealing method utilizes the above sealing structure of the vehicle exhaust system. The sealing structure of the vehicle exhaust system and the sealing method have following beneficial effects: reliable and stable connection of the vehicle exhaust system in a sealing mode is achieved; cost and weight of the sealing structure are reduced; and sealing performance is improved.
Description
Technical field
The present invention relates to automobile exhaust system, be specifically related to automobile exhaust system sealing configuration and encapsulating method.
Background technique
Automobile generally and the life of people link together closely, the development of automotive industry is also more and more faster.Thing followed people more and more pay close attention to the power character of automobile, Economy, environmental-protecting performance.Wherein the sealing of vent systems all has impact to the power character of automobile, Economy and environmental-protecting performance.
Automobile exhaust system is primarily of component groups such as catalytic converter assembly, muffler assembly, exhaust connection, rubber hanging block, sealing gaskets.Sealing means the most conventional is at present: rhombus flat gasket is fastening to be sealed by adding between component flange for silencing apparatus and catalyst converter, exhaust connection etc.Wherein vent systems component flange thickness is 10mm slab part, and flat gasket is double-layer stainless steel horsestone layer of ink composition.This kind of mode Heavy Weight, cost are high, easily occur that poor sealing causes the phenomenon of leakage in addition.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide lightweight, the automobile exhaust system sealing configuration of the low and good seal performance of cost and encapsulating method.
To achieve these goals, the technical solution used in the present invention is:
Automobile exhaust system sealing configuration, the second adpting flange comprising the first adpting flange and be connected with the first adpting flange, is provided with seal ring in the cavity that described first adpting flange and the second adpting flange are connected to form.
Described first adpting flange is connected with the straight tube be connected with silencing apparatus or catalyst converter pipeline.
Described second adpting flange is connected with the connecting tube be connected with exhaust connection.
End, described connecting tube one end is stretched out described second adpting flange and is formed the installation step installing described seal ring; The end, straight tube one end be connected with silencing apparatus or catalyst converter pipeline and the docking of described installation step end.
The skin that described seal ring is coiled into by copper strip roll and the graphite be located in skin are formed.
Described first adpting flange and the second adpting flange are formed by the corrosion resistant plate punching press that thickness is 2mm.
Described first adpting flange upper and lower end edge goes out connecting sheet flange along straight tube axially-extending.
Described second adpting flange upper and lower end edge axially extends connecting plate flange along connecting tube.
Described first adpting flange and described second adpting flange are bolted.
Automobile exhaust system encapsulating method, utilize above-mentioned automobile exhaust system sealing configuration to realize, specific operation process is as follows:
Connecting tube is connected with exhaust connection, and the second adpting flange is stretched out in connecting tube one end, and seal ring is installed in the end, one end that connecting tube stretches out the second adpting flange; Silencing apparatus or catalyst converter pipeline are connected with straight tube, and one end that one end of straight tube and connecting tube install seal ring connects; First adpting flange and the second adpting flange are bolted connection, fill up the first adpting flange after seal ring extrusion-deformation and the second adpting flange leads to the cavity be connected to form, realize being tightly connected of silencing apparatus or catalyst converter and exhaust connection.
The invention has the advantages that: automobile exhaust system sealing configuration and encapsulating method, adopt specified structure, first adpting flange and the first adpting flange are when fastening, seal ring deforms, be close to the first adpting flange and the first adpting flange and be full of the two cavity be connected to form, effectively can play seal action.First adpting flange and and the first adpting flange can be used between the silencing apparatus of automobile exhaust system and catalyst converter, silencing apparatus and between catalyst converter and exhaust connection and exhaust connection being tightly connected each other; The reliable and stable of automobile exhaust system can be realized be tightly connected, weight, the cost of sealing configuration can be reduced simultaneously, and improve sealability.
Accompanying drawing explanation
Mark in the content expressed each width accompanying drawing of specification of the present invention below and figure is briefly described:
Fig. 1 is automobile exhaust system sealing configuration scheme of installation of the present invention.
Fig. 2 is the explosive view of automobile exhaust system sealing configuration of the present invention.
Fig. 3 is the assembling schematic diagram of the first adpting flange of automobile exhaust system sealing configuration of the present invention.
Fig. 4 is the structural representation of the seal ring of automobile exhaust system sealing configuration of the present invention.
Fig. 5 is the A-A cross section structure schematic diagram of Fig. 4 seal ring.
Fig. 6 is the assembling schematic diagram of the second adpting flange of automobile exhaust system sealing configuration of the present invention.
Mark in above-mentioned figure is:
1, the first adpting flange, the 2, second adpting flange, 3, seal ring, 4, bolt, 5, nut, 6, straight tube, 7, connecting tube, 8, graphite, 9, copper strips, 10, the first adpting flange flange, the 11, second adpting flange flange, 12, silencing apparatus or catalyst converter pipeline, 13, exhaust connection.
Embodiment
Contrast accompanying drawing below, by the description to optimum embodiment, the specific embodiment of the present invention is described in further detail.
As shown in Figures 1 to 6, automobile exhaust system sealing configuration, comprises the first adpting flange 1 and is provided with seal ring 3 in cavity that the second adpting flange 2, first adpting flange 1 of being connected with the first adpting flange 1 and the second adpting flange 2 are connected to form.First adpting flange 1 and the second adpting flange 2 are in fastener cycle, and seal ring 3 can deform, and are close to the first adpting flange 1 and the second adpting flange 2 and are full of the two cavity be connected to form, effectively can play seal action.
First adpting flange 1 and the second adpting flange 2 can realize in automobile exhaust system, silencing apparatus and catalyst converter, silencing apparatus and being tightly connected between catalyst converter and exhaust connection.Namely after the first adpting flange 1 welds with straight tube 6 and catalyst converter or silencing apparatus pipeline 12 be welded as assembly; Same second adpting flange 2 welds with connecting tube 7 afterwards and exhaust connection 13 is welded as assembly; Now weld straight tube 6 with the first adpting flange 1, the second adpting flange 2 welding connecting tube 7, illustrate how the first adpting flange 1 and the second adpting flange 2 realize the reliable sealing of parts in automobile exhaust system.
After first adpting flange 1 welds with straight tube 6, straight tube 6 is welded on silencing apparatus or catalyst converter pipeline 12 end.
After second adpting flange 2 welds with connecting tube 7, connecting tube 7 is welded on exhaust connection 13 end.
The end, one end of connecting tube 7 is stretched out the second adpting flange 2 and is formed the installation step installing seal ring 3; The end, one end of silencing apparatus or catalyst converter pipeline 12 and straight tube 6 welding and the docking of installation step end.The second adpting flange 2 three millimeters is stretched out in the end, one end of connecting tube 7, so that seal ring 3 assembles, forms cavity between the first adpting flange 1 and the second adpting flange 2 simultaneously, and cavity is filled up in seal ring 3 distortion, realizes the reliable sealing of vent systems pipeline.
The skin that seal ring 3 is wound into by copper strips 9 and the graphite 8 be located in skin are formed.Seal ring 3 wraps up graphite 8 with the copper strips 9 that thickness is 0.25mm and is rolled into, and copper strips 9 has good ductility, is beneficial to seal ring 3 and deforms, to realize the reliable sealing of vent systems pipeline.
First adpting flange 1 and the second adpting flange 2 are formed by the corrosion resistant plate punching press that thickness is 2mm; First adpting flange 1 and the second adpting flange 2 weight are compared 10mm slab part flange and are reduced by 2/3, considerably reduce cost simultaneously.
First adpting flange 1 upper and lower end edge goes out connecting sheet flange 10 along the axial extend outwards of straight tube 6.Connecting sheet flange 10, while guarantee structural strength, provides protective action to bolt or nut, ensures to connect tightness.
Second adpting flange 2 upper and lower end edge axially extends outward connecting plate flange 11 along connecting tube 7.Connecting plate flange 11, while guarantee structural strength, provides protective action to bolt 4 or nut 5, ensures to connect tightness.
First adpting flange 1 is connected with nut 5 by bolt 4 with the second adpting flange 2.First adpting flange 1 and the second adpting flange 2 are equipped with bolt mounting holes, bolt 4 and nut 5 Placement easy accessibility, in the process that bolt 4 and nut 5 are fastenedly connected simultaneously, squeeze pressure is formed to seal ring 3, seal ring 3 is out of shape when stressed, closely be full of cavity, effectively can improve sealing, reduce the possibility that vent systems is revealed.
Automobile exhaust system encapsulating method, utilize above-mentioned automobile exhaust system sealing configuration to realize, specific operation process is as follows:
Connecting tube 7 and exhaust connection 13 are welded, and seal ring 3 is installed in the end, one end that connecting tube 7 stretches out the second adpting flange 2; After silencing apparatus or catalyst converter pipeline 12 and straight tube 6 weld, one end that straight tube 6 and connecting tube 7 stretch out the second adpting flange 2 connects; First adpting flange 1 and the second adpting flange 2 are fastenedly connected by bolt 4 and nut 5, fill up the cavity that the first adpting flange 1 and the second adpting flange 2 are connected to form after seal ring 3 extrusion-deformation, realize being tightly connected of silencing apparatus or catalyst converter and exhaust connection.
Automobile exhaust system encapsulating method, the first adpting flange 1 and and the second adpting flange 2 can be used between the silencing apparatus of automobile exhaust system and catalyst converter, silencing apparatus and between catalyst converter and exhaust connection and exhaust connection being tightly connected each other; The reliable and stable of automobile exhaust system can be realized be tightly connected, the weight of sealing configuration, cost can be reduced, and improve sealability.
Obvious specific implementation of the present invention is not subject to the restrictions described above, as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technological scheme is carried out, all within protection scope of the present invention.
Claims (10)
1. automobile exhaust system sealing configuration, is characterized in that: the second adpting flange comprising the first adpting flange and be connected with the first adpting flange, is provided with seal ring in the cavity that described first adpting flange and the second adpting flange are connected to form.
2. automobile exhaust system sealing configuration as claimed in claim 1, is characterized in that: described first adpting flange is connected with the straight tube be connected with silencing apparatus or catalyst converter pipeline.
3. automobile exhaust system sealing configuration as claimed in claim 2, is characterized in that: described second adpting flange is connected with the connecting tube be connected with exhaust connection.
4. automobile exhaust system sealing configuration as claimed in claim 3, is characterized in that: end, described connecting tube one end is stretched out described second adpting flange and formed the installation step installing described seal ring; The end, straight tube one end be connected with silencing apparatus or catalyst converter pipeline and the docking of described installation step end.
5. the automobile exhaust system sealing configuration as described in any one of claim 1-4, is characterized in that: the skin that described seal ring is coiled into by copper strip roll and the graphite be located in skin are formed.
6. automobile exhaust system sealing configuration as claimed in claim 5, is characterized in that: described first adpting flange and the second adpting flange are formed by the corrosion resistant plate punching press that thickness is 2mm.
7. the automobile exhaust system sealing configuration as described in any one of claim 1-4, is characterized in that: described first adpting flange upper and lower end edge goes out flange along straight tube axially-extending.
8. automobile exhaust system sealing configuration as claimed in claim 7, is characterized in that: described second adpting flange upper and lower end edge axially extends flange along connecting tube.
9. automobile exhaust system sealing configuration as claimed in claim 8, is characterized in that: described first adpting flange and described second adpting flange are bolted.
10. automobile exhaust system encapsulating method, utilizes the automobile exhaust system sealing configuration described in any one of claim 1-9 to realize, it is characterized in that: specific operation process is as follows:
Connecting tube is connected with exhaust connection, and the second adpting flange is stretched out in connecting tube one end, and seal ring is installed in the end, one end that connecting tube stretches out the second adpting flange; Silencing apparatus or catalyst converter pipeline are connected with straight tube, and one end that one end of straight tube and connecting tube install seal ring connects; First adpting flange and the second adpting flange are bolted connection, after seal ring extrusion-deformation, fill up the cavity that the first adpting flange and the second adpting flange are connected to form, realize being tightly connected of silencing apparatus or catalyst converter and exhaust connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510379513.2A CN104912689A (en) | 2015-06-27 | 2015-06-27 | Sealing structure of vehicle exhaust system and sealing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510379513.2A CN104912689A (en) | 2015-06-27 | 2015-06-27 | Sealing structure of vehicle exhaust system and sealing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104912689A true CN104912689A (en) | 2015-09-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510379513.2A Pending CN104912689A (en) | 2015-06-27 | 2015-06-27 | Sealing structure of vehicle exhaust system and sealing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104912689A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4570440A (en) * | 1985-07-02 | 1986-02-18 | Chrysler Corporation | Articulated connector |
| DE3821194A1 (en) * | 1988-06-23 | 1989-12-28 | Goetze Ag | Sealing ring for pipe connections, especially those in exhaust pipes |
| EP0794378A2 (en) * | 1996-03-04 | 1997-09-10 | Georg Fischer WAGA N.V. | A coupling device |
| JP2004076692A (en) * | 2002-08-21 | 2004-03-11 | Oiles Ind Co Ltd | Exhaust pipe joint device |
| US20050258642A1 (en) * | 2003-03-31 | 2005-11-24 | Brophy Lawrence J Iii | Exhaust pipe joint and seal |
| WO2006058693A1 (en) * | 2004-12-03 | 2006-06-08 | Arvinmeritor Emissions Technologies Gmbh | Exhaust pipe connection |
| US20070090645A1 (en) * | 2003-10-30 | 2007-04-26 | Daimlerchrysler Ag | Pipe joint |
| JP2012036916A (en) * | 2010-08-03 | 2012-02-23 | Nippon Pillar Packing Co Ltd | Seal for pipe joint |
| CN202707274U (en) * | 2012-04-28 | 2013-01-30 | 奉化市科锐汽车部件有限公司 | A sealer for an automobile exhaust pipe |
| CN202791039U (en) * | 2012-08-31 | 2013-03-13 | 四川南骏汽车集团有限公司 | Flange installation structure and engine |
| CN203239432U (en) * | 2013-03-21 | 2013-10-16 | 奇瑞汽车股份有限公司 | Vehicle exhaust system |
-
2015
- 2015-06-27 CN CN201510379513.2A patent/CN104912689A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4570440A (en) * | 1985-07-02 | 1986-02-18 | Chrysler Corporation | Articulated connector |
| DE3821194A1 (en) * | 1988-06-23 | 1989-12-28 | Goetze Ag | Sealing ring for pipe connections, especially those in exhaust pipes |
| EP0794378A2 (en) * | 1996-03-04 | 1997-09-10 | Georg Fischer WAGA N.V. | A coupling device |
| JP2004076692A (en) * | 2002-08-21 | 2004-03-11 | Oiles Ind Co Ltd | Exhaust pipe joint device |
| US20050258642A1 (en) * | 2003-03-31 | 2005-11-24 | Brophy Lawrence J Iii | Exhaust pipe joint and seal |
| US20070090645A1 (en) * | 2003-10-30 | 2007-04-26 | Daimlerchrysler Ag | Pipe joint |
| WO2006058693A1 (en) * | 2004-12-03 | 2006-06-08 | Arvinmeritor Emissions Technologies Gmbh | Exhaust pipe connection |
| JP2012036916A (en) * | 2010-08-03 | 2012-02-23 | Nippon Pillar Packing Co Ltd | Seal for pipe joint |
| CN202707274U (en) * | 2012-04-28 | 2013-01-30 | 奉化市科锐汽车部件有限公司 | A sealer for an automobile exhaust pipe |
| CN202791039U (en) * | 2012-08-31 | 2013-03-13 | 四川南骏汽车集团有限公司 | Flange installation structure and engine |
| CN203239432U (en) * | 2013-03-21 | 2013-10-16 | 奇瑞汽车股份有限公司 | Vehicle exhaust system |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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Application publication date: 20150916 |
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| RJ01 | Rejection of invention patent application after publication |