CN100447384C - Construction of coupling exhaust pipes of vehicle - Google Patents
Construction of coupling exhaust pipes of vehicle Download PDFInfo
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- CN100447384C CN100447384C CNB2006100061532A CN200610006153A CN100447384C CN 100447384 C CN100447384 C CN 100447384C CN B2006100061532 A CNB2006100061532 A CN B2006100061532A CN 200610006153 A CN200610006153 A CN 200610006153A CN 100447384 C CN100447384 C CN 100447384C
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- outlet pipe
- lip part
- opening
- bellying
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Abstract
The present invention provides an opening edge of an upstream-side exhaust pipe and an opening edge of a downstream-side exhaust pipe opposed to the opening edge of the upstream-side exhaust pipe are bent radially outward and thereafter radially inward by molding to form a circumference of the upstream-side exhaust pipe and a circumference of the downstream-side exhaust pipe as a flange portion respectively. After both flange portions are butted to each other through a gasket disposed therebetween, they are mechanically coupled to each other with a bolt and a nut.
Description
Technical field
The present invention relates to the linkage structure of blast duct for vehicle, relate in particular to the linkage structure that to weld, use amount of parts seldom just outlet pipe can be joined to one another.
Background technique
Figure 11, Figure 12 represent an example of the exhaust pipe connection structure of prior art.In Figure 12, be fixed with the connection flange 61,62 of almost diamond (Figure 11) by welding in the pipe end periphery of upstream side outlet pipe 1 and downstream side outlet pipe 2, be thus connected together (the 1st prior art example) by connecting with flange 61,62, two these outlet pipes 1,2 across sealing gasket 63 with nut 65 with bolt 64.
Figure 13, Figure 14 represent other examples of the exhaust pipe connection structure of prior art.In Figure 14, the full week of one side of stop ring 71,72 that is configured as the ヘ shaped sections is soldered respectively and be fixed on the pipe end periphery of upstream side outlet pipe 1 and downstream side outlet pipe 2.Inserting ring-type liner 73 between the another side of symmetrical mutually locational above-mentioned stop ring 71,72, a side is covered a pair of grip shank 74,75, two outlet pipes 1,2 by connecting so from the outside.Each grip shank 74,75 is for to form the part that the cross section is lambdoid semicircular arc (Figure 13) with band-like plate, one end can interosculate rotationally, is being overlayed on the back the other end bolt 76 and nut 77 combinations (the 2nd prior art example) on the stop ring 71,72 from the outside.
In addition, a kind of like this linkage structure of outlet pipe below in TOHKEMY 2002-227643, disclosing: in wherein another root outlet pipe is gone in an outlet pipe and intercalation, fastening clips is installed respectively, with the screw bolt and nut structure that they are fastening.
But, above-mentioned prior art constructions will be owing to need will connect the pipe end periphery that is fixed on outlet pipe 1,2 with flange 61,62 or stop ring 71,72 by welding, therefore not only exist stress to concentrate on welded joint and be easy to generate damaged problem, but also have the such problem of welding process trouble by the vibrations of vehicle etc.And, in the 1st prior art example, if promote surface pressure in order to prevent sealing gasket 63 gas leakages, then need to make the wall thickness that connects with flange 61,62 to reach 10～12mm, exist weight and cost to increase such problem, and in the 2nd prior art example, have the many problems of amount of parts.
Summary of the invention
Therefore, the present invention is exactly in order to solve such problem, and purpose is will provide a kind of needn't worry that vibrations wait and cause breakage, and can avoid weight, cost and number of components and parts to increase, and the linkage structure of the blast duct for vehicle of making easily.
In order to achieve the above object, in the 1st scheme of the present invention, make upstream side outlet pipe (1) and downstream side outlet pipe (2) each edge of opening respect to one another (11,12) along radial direction outwardly-bent after, at least carry out once along inside the folding of radial direction, thereby become lip part (12,22), make two lip parts (12,22) butt joint across sealed member (31), make above-mentioned two lip parts (12,22) mechanically combination mutually with combination member (41,42); One side of above-mentioned combination member is made of the bolt that runs through above-mentioned two lip parts, and the opposing party of above-mentioned combination member is made of the nut that combines with above-mentioned bolt, and the peripheral edge of above-mentioned each lip part is bent to approximate right angle and forms strengthening rib.
In the 1st scheme of the present invention,, therefore can not produce the concentrated breakage that causes of stress etc. owing to there is not the fixing part that passes through welding of prior art.And owing to can omit welding process, so manufacture process does not bother.Owing to not pressing the connection flange that uses heavy wall, therefore avoided the increase of weight and cost in order to ensure the face that prevents gas leakage.And, because lip part is formed on the edge of opening of outlet pipe, therefore compare as the structure in the past of other structure with stop ring with will being connected with flange, can reduce number of components and parts.
In the 2nd scheme of the present invention, make upstream side outlet pipe (1) and downstream side outlet pipe (2) each edge of opening respect to one another (11,21) outwardly-bent and become lip part (14,24) along radial direction, make two lip parts (14,24) butt joint across sealed member (32), clamp above-mentioned two lip parts (14,24) from the outside of opposite direction with clamping components (5A, 5B) they are interosculated.The 2nd scheme can obtain the effect identical with the 1st scheme.
In the 3rd scheme of the present invention, above-mentioned lip part (84,94) forms like this: on the neutral position of opening (81, the 91) intended distance of body (8,9) with tube wall along the outside hole enlargement of radial direction be that the general chevron shaped cross section forms, at least one bellying adjacent one another are (82,92,92A, 92B), crushed by length direction, so that two inclined-planes in the man type cross section of each bellying (821,822,921,922) are overlapping to body (8,9).In the 3rd scheme, owing to make the tube wall protuberance in the neutral position of leaving opening, therefore follow the pipe wall material between hole enlargement and the opening to be provided for bellying, prevent that the wall thickness of bellying is too thin.As a result, guarantee to form enough wall thickness of bellying and lip part following closely.
As mentioned above, if adopt the linkage structure of blast duct for vehicle of the present invention, do not worry that not only vibrations etc. cause breakage, and can avoid the increase of weight, cost and number of components and parts, and manufacturing is also easy.
Description of drawings
Fig. 1 is the cross-sectional view of the blast duct for vehicle that couples together of the 1st example of the present invention.
Fig. 2 is the longitudinal section along the II-II line of Fig. 1.
Fig. 3 is the longitudinal section along the III-III line of Fig. 1.
Fig. 4 is the cross-sectional view of the blast duct for vehicle that couples together of the 2nd example of the present invention.
Fig. 5 is the longitudinal section along the V-V line of Fig. 4.
Fig. 6 is the longitudinal section along the VI-VI line of Fig. 4.
Fig. 7 is the sectional view of manufacture process of the lip part of expression the 3rd example of the present invention.
Fig. 8 is the sectional view of manufacture process of the lip part of expression the 4th example of the present invention.
Fig. 9 is the stereogram and the sectional view of manufacture process of the lip part of expression the 5th example of the present invention.
Figure 10 is the stereogram and the sectional view of manufacture process of the lip part of expression the 6th example of the present invention.
Figure 11 is the cross-sectional view of the blast duct for vehicle that couples together of expression prior art example.
Figure 12 is the longitudinal section along the XII-XII line of Figure 11.
Figure 13 is the cross-sectional view of the blast duct for vehicle that couples together of other prior art examples of expression.
Figure 14 is the longitudinal section along the XIV-XIV line of Figure 13.
Embodiment
(the 1st example)
Fig. 1～Fig. 3 represents an example of linkage structure of the present invention.Fig. 1 is the cross-sectional view of the blast duct for vehicle that couples together, and Fig. 2, Fig. 3 are respectively along the II-II line of Fig. 1 and the longitudinal section of III-III line.In Fig. 2, Fig. 3, upstream side outlet pipe 1 and downstream side outlet pipe 2 are positioned at the position that makes edge of opening 11,21 relative.The wall thickness of each outlet pipe 1,2 is for example 1.2～1.5mm, and its edge of opening 11,21 forms the lip part 12,22 of predetermined width by extension forming and outwardly-bent along radial direction, inwardly folding along radial direction then in around openings.Lip part 12,22 is provided with sealing gasket 31 between it, bolt 41 and nut 42 combinations are used in butt joint each other in the position of radial direction symmetry (Fig. 1).Two outlet pipes 1,2 are by connecting like this.In addition, the peripheral edge except that bolt-through portion of lip part 12,22 bends to approximate right angle (Fig. 3) with the height of 7～8mm again, as strengthening rib 13,23, guarantees that thus the face of sealing gasket 31 is pressed.
If adopt this example,, therefore not only can not produce the concentrated breakage that causes of stress etc., and not need welding process owing to there is not the fixing part that passes through welding of prior art.And, need not press and the connection flange of use heavy wall in order to ensure the face that prevents gas leakage, therefore avoided the increase of weight and cost.And, owing to the edge of opening that lip part 12,22 is formed on outlet pipe 1,2, therefore compare with using other being connected with the structure in the past of flange 61,62 (Figure 12), can reduce number of components and parts.
(the 2nd example)
Fig. 4～Fig. 6 represents other examples of linkage structure of the present invention.Fig. 4 is the cross-sectional view of the blast duct for vehicle that couples together, and Fig. 5, Fig. 6 are respectively along the V-V line of Fig. 4 and the longitudinal section of VI-VI line.In this example, be positioned at and make the wall thickness of relative locational upstream side outlet pipe 1 of edge of opening 11,21 (Fig. 5, Fig. 6) and downstream side outlet pipe 2 be for example 1.2～1.5mm, its edge of opening 11,21 is outwardly-bent along radial direction by extension forming, inwardly folding along radial direction then, at the lip part 14,24 of around openings formation predetermined width.Lip part 14,24 is provided with large diameter sealing gasket 32 between it, each other butt joint.The peripheral part of sealing gasket 32 radially outwards protrudes in the periphery of lip part 14,24, and carrier ring 5A, the 5B that embeds movably in the periphery of each outlet pipe 1,2 connects from the peripheral part of two sides and sealing pad 32.In addition, because the lip part 14,24 of this example can be littler than the width in the 1st example, the shaping burden in the time of therefore can alleviating extension forming.
Because this example does not have the such fixing part that passes through welding of prior art yet, therefore not only can not produce the concentrated breakage that causes of stress etc., and not need welding process.And, need not press and the connection flange of use heavy wall in order to ensure the face that prevents gas leakage, therefore avoided the increase of weight and cost.And, owing to the edge of opening that lip part 14,24 is formed on outlet pipe, therefore compare with the structure in the past of using other stop ring 71,72 (Figure 14), can reduce number of components and parts.
(the 3rd example)
Form other method representation of lip part in Fig. 7 in the around openings of outlet pipe.Under the state of the outer peripheral portion of the body 8 that the triangle arrow that grips Fig. 7 (1) with suitable method is represented, crimping is processed the whole week of the tube wall in the neutral position of leaving opening 81 intended distances, and it is the bellying 82 of general chevron shaped that outside thus hole enlargement becomes the cross section.In addition, in following each example, the triangle arrow is represented the outer peripheral portion of the body that grips with suitable method.Like this owing to make the tube wall protuberance in the neutral position of leaving opening 81, along with hole enlargement will and opening 81 between pipe wall material offer bellying 82, prevent that the wall thickness of bellying 82 is too thin.After this, cut off body 8 in the side skirt section of the opening 81 in the man type cross section of bellying 82 and form new opening 83 (Fig. 7 (2)), by extrusion moulding at the crush top in man type cross section of bellying 82 of boundary, make the inclined-plane 821 of opening side be pressed in (Fig. 7 (3)) on another inclined-plane 822, around opening 83, hold up lip part 84.
(the 4th example)
The additive method again that forms lip part in the around openings of outlet pipe is illustrated among Fig. 8.Under the state of the periphery of the body 8 that the triangle arrow that grips Fig. 8 (1) with suitable method is represented, the drift PT that is divided into multistage inserted the neutral position in the body 8 that leaves opening 81 intended distances.And plunger PL is advanced strut each drift PT,, make the whole circumferentially outer hole enlargement of tube wall become the cross section of general chevron shaped to become bellying 82 by the processing of expanding like this.After this, cut off body 8 in the side skirt section of the opening 81 in the man type cross section of bellying 82 and form new opening 83 (Fig. 8 (2)), by extrusion moulding at the crush top in man type cross section of bellying 82 of boundary, make the inclined-plane 821 of opening side be pressed in (Fig. 8 (3)) on another inclined-plane 822, around opening 83, form the lip part of holding up 84.Also can prevent that equally with the method for the 3rd example the wall thickness of bellying 82 is too thin by such method.In addition, expansion processing also can be carried out with hydraulic buckling.
(the 5th example)
Form other the direction indication again of lip part in Fig. 9 in the around openings of outlet pipe.At first shown in Fig. 9 (1), like that metal plate 10 punch process are become roughly U shaped sections.At this moment, make the plate face outwards be deformed into the bellying 92 in general chevron shaped cross section in the neutral position of leaving end face 101 intended distances.Then plate body 10 is squeezed into and forms tubular (Fig. 9 (2)), the butt end 923 that solder bond is extended along its length becomes the body 9 that has bellying 92 on the neutral position of leaving opening portion 91 intended distances.In addition and since this moment be welded as welding between the metal of the same race, therefore can not produce electro erosion.After this, cut off body 9 in the side skirt section of the opening in the man type cross section of bellying 92 and form new opening 93 (Fig. 9 (3)), by extrusion moulding at the crush top in man type cross section of bellying 92 of boundary, make the inclined-plane 921 of opening side be pressed in (Fig. 9 (4)) on another inclined-plane 922, around opening 93, form the lip part of holding up 94.This example is applicable to makes the large diameter outlet pipe with lip part.
(the 6th example)
Form other the direction indication again of lip part in Figure 10 in the around openings of outlet pipe.Shown in Figure 10 (1), metal plate 10 punch process are become roughly U shaped sections, this moment the neutral position of leaving end face 101 intended distances two adjacent places of length direction make plate towards outside be deformed into bellying 92A, the 92B in general chevron shaped cross section.Then plate body 10 is squeezed into and forms tubular (Figure 10 (2)), the butt end 923 that solder bond is extended along its length becomes the body 9 that has 2 bellying 92A, 92B adjacent one another are on the neutral position of leaving opening portion 91 intended distances.After this, cut off body 9 in the side skirt section of the opening in the man type cross section of the bellying 92A that is positioned at opening 91 1 sides and form new opening 93 (Figure 10 (3)), by extrusion moulding at the crush top in man type cross section of each bellying 92A, 92B of boundary, make the inclined-plane 921 of opening side be pressed in (Figure 10 (4)) on another inclined-plane 922, around opening 93, form the lip part of holding up 94.This example is not only applicable to make the large diameter outlet pipe with lip part, and can guarantee the thickness of enough lip parts 94.In addition, if form bellying more than 3, they are crushed forms lip part, then can further guarantee its thickness.
(other example)
In above-mentioned each example kind,, then do not need inwardly folding or formation strengthening rib 13,23 along radial direction if can guarantee the enough intensity of lip part 12,22.And,, then do not need to form strengthening rib 52 if can guarantee the enough intensity of carrier ring 5A, 5B.
Claims (2)
1. the linkage structure of a blast duct for vehicle, it is characterized in that, make upstream side outlet pipe and downstream side outlet pipe each edge of opening respect to one another along radial direction outwardly-bent after, at least carry out once along inside the folding of radial direction, thereby become lip part, make the butt joint of two lip parts across sealed member, make the mechanically combination mutually of above-mentioned two lip parts with combination member; One side of above-mentioned combination member is made of the bolt that runs through above-mentioned two lip parts, and the opposing party of above-mentioned combination member is made of the nut that combines with above-mentioned bolt, and the peripheral edge of above-mentioned each lip part is bent to approximate right angle and forms strengthening rib.
2. the linkage structure of blast duct for vehicle as claimed in claim 1, it is characterized in that, above-mentioned lip part forms like this: be that the general chevron shaped cross section forms, at least one bellying adjacent one another are with tube wall along the outside hole enlargement of radial direction on the neutral position of the opening intended distance of body, crushed by length direction, so that two inclined-planes in the man type cross section of each bellying are overlapping to body.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP019306/2005 | 2005-01-27 | ||
| JP2005019306 | 2005-01-27 | ||
| JP213725/2005 | 2005-07-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1811142A CN1811142A (en) | 2006-08-02 |
| CN100447384C true CN100447384C (en) | 2008-12-31 |
Family
ID=36844231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100061532A Active CN100447384C (en) | 2005-01-27 | 2006-01-19 | Construction of coupling exhaust pipes of vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN100447384C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021080837A (en) * | 2019-11-15 | 2021-05-27 | マツダ株式会社 | Exhaust pipe structure for vehicle mounted with internal combustion engine and manufacturing method for vehicle mounted with internal combustion engine |
| CN111810504A (en) * | 2020-07-22 | 2020-10-23 | 沈阳长城橡胶有限公司 | Sensor sheath rubber hose of convenient concatenation |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191210120A (en) * | 1912-04-29 | 1913-04-29 | Automatic Telephone Mfg Co Ltd | Improvements in or relating to Electrical Impulse Transmitters. |
| JPH08121160A (en) * | 1994-10-21 | 1996-05-14 | Calsonic Corp | Pipe joint device |
| US6217084B1 (en) * | 1996-11-21 | 2001-04-17 | Dresser Wayne Aktiebolag | Device on a conduit end and arrangement for joining conduits |
| US6508491B1 (en) * | 2000-11-09 | 2003-01-21 | Guenther Ebinger | Exhaust manifold clamp with vibration disconnecting effects for flange connections in exhaust lines and method of making same |
| CN1432720A (en) * | 2002-01-17 | 2003-07-30 | 日产自动车株式会社 | Exhauster of internal combustion engine |
| DE10204261A1 (en) * | 2002-02-02 | 2003-08-07 | Bauer Christian Gmbh & Co | Flange connection of two pipes, in particular the pipes of an exhaust system of a motor vehicle internal combustion engine |
| JP2004218660A (en) * | 2003-01-09 | 2004-08-05 | Sankei Kogyo Kk | Pipe joint of exhaust pipe or the like |
-
2006
- 2006-01-19 CN CNB2006100061532A patent/CN100447384C/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191210120A (en) * | 1912-04-29 | 1913-04-29 | Automatic Telephone Mfg Co Ltd | Improvements in or relating to Electrical Impulse Transmitters. |
| JPH08121160A (en) * | 1994-10-21 | 1996-05-14 | Calsonic Corp | Pipe joint device |
| US6217084B1 (en) * | 1996-11-21 | 2001-04-17 | Dresser Wayne Aktiebolag | Device on a conduit end and arrangement for joining conduits |
| US6508491B1 (en) * | 2000-11-09 | 2003-01-21 | Guenther Ebinger | Exhaust manifold clamp with vibration disconnecting effects for flange connections in exhaust lines and method of making same |
| CN1432720A (en) * | 2002-01-17 | 2003-07-30 | 日产自动车株式会社 | Exhauster of internal combustion engine |
| DE10204261A1 (en) * | 2002-02-02 | 2003-08-07 | Bauer Christian Gmbh & Co | Flange connection of two pipes, in particular the pipes of an exhaust system of a motor vehicle internal combustion engine |
| JP2004218660A (en) * | 2003-01-09 | 2004-08-05 | Sankei Kogyo Kk | Pipe joint of exhaust pipe or the like |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1811142A (en) | 2006-08-02 |
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