CN101435359A - Flexible pipe for automobile exhaust pipeline - Google Patents
Flexible pipe for automobile exhaust pipeline Download PDFInfo
- Publication number
- CN101435359A CN101435359A CNA2008101842092A CN200810184209A CN101435359A CN 101435359 A CN101435359 A CN 101435359A CN A2008101842092 A CNA2008101842092 A CN A2008101842092A CN 200810184209 A CN200810184209 A CN 200810184209A CN 101435359 A CN101435359 A CN 101435359A
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- CN
- China
- Prior art keywords
- flexible
- flexible tube
- wavy
- tube
- outer flexible
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/11—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall
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- 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
- F01N2470/00—Structure or shape of gas passages, pipes or tubes
- F01N2470/12—Tubes being corrugated
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention provides a flexible pipe applied to an exhaust duct of an automobile, which comprises a spiral or annularly undulate metal bellow element, an exterior flexible element arranged around the bellow element, and an elastic cell for enabling at least one section of the exterior flexible element leaned to the bellow element; wherein, the exterior flexible element has a formation of screen mesh structure to improve vibration absorption property of a gas engine.
Description
Technical field
The present invention relates to a kind of flexible tube that is used for the car combustion engine exhaust duct, the outer flexible element that described flexible tube preferably includes the wavy wavy metal tube elements of spirality or annular, arrange around described bellows element and at least outside described a cross section of flexible element be biased to the elastic element of described bellows element.
Background technique
The aforesaid flexible tube that is used for automobile exhaust pipeline is known from DE 10 2,004 041, and it is common in the automotive industry.Flexible tube is positioned between the exhaust duct and the baffler in the automobile that the motor from internal combustion engine exhaust system stretches out.Be used for the separating joint of the flexible tube of automobile exhaust pipeline as vent systems, thereby this flexible tube not only is subjected to the influence of heat and vibration, and owing to the operation of motor or the influence that rotation is subjected to impulsive load when engine start, acceleration and the brake operating or during gear graduation.In addition, road conditions also can cause the exhaust duct vibration.
The known flexible tube that is used for automobile exhaust pipeline comprise by outer flexible element around the wavy metal tube elements, outer flexible element by the braiding silk screen make.Elastic element is located around outer flexible element, is used to compress outer flexible element.Elastic element makes resonant frequency obviously reduce with this set of the outer flexible element that the braiding silk screen is made, thereby, compare with known flexible tube, improved the described operability that is used for the flexible tube of automobile exhaust pipeline.From EP 1 576 263 known a kind of embodiments that are used for the flexible tube of automobile exhaust pipeline, but it is not provided with such elastic element.
Summary of the invention
Yet,, the demand that absorbs and weaken vibration and noise is also increased along with the increase of engine output.
Thereby the present invention is devoted to solve the above-mentioned of prior art and other deficiency.
According to the present invention, its objective is provides a kind of flexible tube that is used for automobile exhaust pipeline, and this flexible tube is compared with the flexible tube of prior art, can improve the performance that absorbs and weaken vibration, impulsive load and thermal expansion.
To achieve these goals, according to the present invention, the flexible tube that is used for automobile exhaust pipeline comprises the outer flexible element that is screen net structure.
Compare with the structure that adopts braided wire element and elastic material, the flexible tube (it is made by elastic material) that is used for automobile exhaust pipeline adopts screen net structure obviously to reduce the dynamic stability and the resonant frequency of the near-resonance of elastic material.In addition, use elastic material to show than the device that does not use elastic material to have the bigger traction limit.Than the mode of execution that does not use elastic material, the flexible tube that the big traction limit allows to be used for automobile exhaust pipeline extends vertically more longways.
According to preferred implementation of the present invention, the screen net structure of outer flexible element is a reticular structure.This reticular structure has further improved performance of the present invention.The described reticular structure that is formed by braiding structure makes the manufacturing of outer flexible element become simply, and has reduced its manufacture cost.
Substantially preferably, flexible element is complete screen net structure.
In order to make outer flexible element have rigidity, this outer flexible element can be made by the wire material.
The silk screen of outer flexible element or reticular structure can have opening between the wire material, wherein these openings can occupy outer flexible element whole surface at least 50%.The reticular structure of this opening makes that performance of the present invention is further improved.
Preferably, outer flexible element forms flexible pipe, and this hose loop is arranged around described bellows element.Such layout can cover described bellows element fully.
Preferably, outer flexible element is attached at the two ends of described bellows element.This can improve the damping property that is used for the flexible tube of automobile exhaust pipeline according to of the present invention.
In another preferred implementation of the present invention, outer flexible element can be out of shape along its axial elasticity at least, thereby is somebody's turn to do the tension force that outer flexible element can tolerate generation in service.This structure is particularly preferred when the flexible tube that is used for automobile exhaust pipeline extends axially.Limit of stretch and operation that like this can the control valve element, this tube elements be closed extending axially in the process of run duration.
In a preferred implementation more of the present invention, bellows element is formed by wavy (corrugation), wavy that this wavy ratio of elongation radially is adjacent is little, radially extend less wavy and form groove, thereby outer flexible element and elastic element controllably are supported in the described groove.Outer flexible element can be always supported by wavy crest portion.Therefore, the tension force that is applied to outer flexible element can finally accurately be controlled, and perhaps should can arrange by bellows element by outer flexible element.Disclosed known mode of execution is not provided with any groove that can compare with disclosed content in the present embodiment in the disclosed mode of execution in DE 10 2,004 041 348.The substitute is wavy that has omitted random amount, wavy adjacent length that is formed with extension is used under radially without any situation about supporting outer flexible element being remained between wavy.
Described groove is preferably placed in the central cross-section of bellows element, thereby can realize the symmetric arrangement of flexible tube.
In optional preferred implementation, described groove can form a plurality of.
Described elastic element is preferably arranged with respect to described groove, thereby this elastic element can extend around described groove, and outer flexible element is expressed in the described groove.Therefore, outer flexible element can remain on elastic element and at least one and forms between wavy of described groove.
Thereby described elastic element can partly be received in the described groove at least, thereby described elastic element can be along described axially locating.
In addition, tube elements has interior pipe in described bellows element, thereby waste gas can be directly by described bellows element guiding.Pipe also limits bellows extension vertically in described when keeping described tube elements amount of deflection.
Pipe is preferably formed by buckle-type (agrafe-type) flexible pipe in described.Specifically, this buckle-type flexible pipe preferably is subjected to the extension restriction of tube elements.In addition, almost there is not resistance to produce for extending axially.Optionally, pipe can be formed by flexible hose in described.Described flexible hose makes the amount of deflection of tube elements bigger.
According to said structure of the present invention, to compare with the flexible tube of prior art, the flexible tube that is used for automobile exhaust pipeline can improve the performance that absorbs and weaken vibration, impulsive load and thermal expansion.
Description of drawings
Preferred implementation according to following detailed description can more be expressly understood purpose of the present invention, feature and advantage in conjunction with the accompanying drawings, in the accompanying drawing;
Fig. 1 is the partial sectional view of expression flexible tube that is used for automobile exhaust pipeline of first preferred implementation according to the present invention; And
Fig. 2 is the partial sectional view of expression flexible tube that is used for automobile exhaust pipeline of second preferred implementation according to the present invention.
Embodiment
Structure and the operation that is used for the flexible tube of automobile exhaust pipeline according to of the present invention described in further detail referring now to accompanying drawing.
Fig. 1 represents to be arranged in the flexible tube that is used for automobile exhaust pipeline of the vent systems of car combustion engine.Flexible tube 1 be positioned at baffler and the exhaust duct that stretches out from motor between, wherein exhaust duct and baffler are not illustrated.Yet the flexible tube that is used for automobile exhaust pipeline is known being arranged in the corresponding industrial field of automobile exhaust system.
The flexible tube that is used for automobile exhaust pipeline comprises the wavy metal tube elements 2 with annular wavy 3.Wavy metal tube elements 2 by outer flexible element 4 around, this outer flexible element 4 is made for screen net structure, specifically is the reticular structure that forms the braided metal silk screen.This screen net structure illustrates in the bottom of Fig. 1, and the bottom of Fig. 1 is the external view that is used for the flexible tube of automobile exhaust pipeline.The top of Fig. 1 shows the section of flexible tube.As shown in Figure 1, be provided with opening between the wire in reticular structure, make reticular structure become opening structure.As shown in Figure 1, the opening between the wire occupies reticular structure more than 50% of whole surface of (it is tubular construction substantially), is preferably 75%.
The flexible tube 1 that is used for automobile exhaust pipeline comprises elastic element 5, and this elastic element 5 is around outer flexible element 4 and bellows element 2 and arrange.Elastic element 5 is roughly the annular spring element, this annular spring element ring around bellows element and outside flexible element.In order to obtain tension force, the undulations that elastic element 5 is formed by bending elasticity element 5 (undulation) 6 forms.The tension force that elastic element 5 produces towards bellows element.Optionally, the spring element that the spiral spring element replaces annular can be set, wherein the spiral spring element ring is around the flexible tube that is used for automobile exhaust pipeline.
As shown in Figure 1, elastic element 5 engages with the outer surface of outer flexible element 4, and the section of flexible element 4 is biased to bellows element 2 outside.Usually, outer flexible element 4 is not only continued to use in axially having of the flexible tube of automobile exhaust pipeline flexible, and continues to use in circumferentially also having of the flexible tube of automobile exhaust pipeline flexible.Outer flexible element 4 is general hose-like, and runs through wavy 3 whole length extension of bellows element 2.Wavy 3 length is set to contact with the bellows element 2 that is positioned at elastic element 5 zones when the flexible tube that is used for automobile exhaust pipeline is in extension state not, as by elastic element flexible element 4 outside bellows element 2 bias voltages.Bellows element 2 forms by wavy, described wavy extension difference radially.Wavy radially extension inwardly increases to level wavy successively from outermost one wavy.At about middle part of the flexible tube 1 that is used for automobile exhaust pipeline, wavy radially extension reduces again, thereby forms groove 7 by radially extending little wavy 7.1,7.2 and 7.3.Can further increase in the quantity of radially extending mesorelief portion that reduces, and wavy quantity can further reduce.In a preferred embodiment, described groove forms by three wavy, and wavy in the middle of wherein being positioned at has minimum radially extension.
Elastic element 5 circumferential grooves 7 arrange that wherein the size of elastic element 5 is chosen as to a certain extent and is received in the groove fully.Elastic element 5 advances outer flexible element 4 in the groove, and the radially extension that makes outer flexible element pass through to be reduced contacts with at least one or two ends of wavy.
In the outer end of the flexible tube that is used for automobile exhaust pipeline, wavy metal tube elements 2 pushes each other with outer flexible element 4, and is supported on by two ring-type elements (ring-type element 8 is with outer ring element 9 promptly) respectively.These two ring-type elements 8,9 tighten together bellows element 2 and outer flexible element 4 in known manner.
By adopting ring-type element 8 and 9, outside wavy the shape that outer flexible element 4 is admitted the wavy metal tube elements, and contact with outside wavy end of wavy metal tube elements.Under the not extension state of the shown flexible tube that is used for automobile exhaust pipeline, in the zone on groove 7 next doors wavy and outside be formed with the gap between the flexible element, this gap is approx corresponding to wavy 3 radially extension zone uniformly wherein.Because the flexible tube that is used for automobile exhaust pipeline extends vertically, therefore outer flexible element 4 bends to and makes radially extending in the substantially uniform zone of wavy therein of this outer flexible element 4 contact with wavy 3 end of bellows element 2 fully.Therefore, this gap disappears.
In addition, the flexible tube that is used for automobile exhaust pipeline comprises the pipe of being made by the braided metal silk screen 10 that is positioned at bellows element.The shape of braided metal silk screen is illustrated in the top of Fig. 1 in the mode of sectional view.Ring-type element 8 in interior pipe 10 is attached to by carrier ring 11.Therefore, interior pipe 10 is supported between interior ring-type element 8 and the carrier ring 11.Wavy of being designed to when it is not crooked not with bellows element 2 of the interior pipe of being made by the braided metal silk screen 10 contacts, as shown in Figure 1.Adopt the braided metal silk screen by pipe in making 10, exhaust via the flexible tube guiding that is used for automobile exhaust pipeline mainly flow to the wavy metal tube elements by interior pipe 10, this is because the braided metal wire mesh shape becomes slightly solid surface, does not form opening in this surface between the wire bundle that forms wire gaze.Therefore, the design of the metal knitted and outer flexible element 4 in the interior pipe is different fully.
The advantage of the operation of the flexible tube that is used for automobile exhaust pipeline of first preferred implementation according to the present invention is described now in more detail.
If the flexible tube that will be used for automobile exhaust pipeline is installed in the vent systems of automobile, then the pipe of vent systems is received in a certain lip-deep interior ring-type element 8 of the flexible tube that is used for automobile exhaust pipeline.Exhaust is passed described pipe and is used for the interior pipe 10 of the flexible tube of automobile exhaust pipeline.When ato unit or driving automobile, the motion of pipeline and vibration are introduced into exhaust duct and the final flexible tube that is used for automobile exhaust pipeline of introducing.The flexible tube 1 that is used for automobile exhaust pipeline absorbs two pipelines on a certain surface that is attached to flexible element or the relatively large motion between two pipelines.During internal combustion engine, the rotating speed of motor (for example design of motor) is depended in the vibration of generation.Have at motor under the situation of 4 polyphone cylinders, can produce certain resonant frequency (this is known in present technology).Find that the present invention adopts following structure at this: be used for the flexible tube of automobile exhaust pipeline, this flexible tube has outer flexible element and the elastic element 5 that is screen net structure.The low hardness of the flexible tube by being used for automobile exhaust pipeline can obviously reduce the vibration of motor, and by structure of the present invention, the resonance of motor can be weakened or transfer in the scope of frequency of okperation, thereby the noise that passes to the occupant reduces.Compare with traditional design, the flexible tube that is used for automobile exhaust pipeline according to the present invention has higher limit of stretch.Even outer flexible element always engages with bellows element by elastic element, also allow under extension state, in sizable scope, to extend vertically, at this extension state not, there is the gap between bellows element and the outer flexible element 4.Extend if be used for the flexible tube of automobile exhaust pipeline, then the gap reduces or eliminates, thus outer flexible element engage with bellows element 2 fully to a certain extent (cause bellows element and outside between the flexible element generation rub), thereby eliminated vibrational energy.The wire mesh structure of outer flexible element is still enough firm in the protection metallic member.Because the flexible tube that is used for automobile exhaust pipeline that can adopt length to reduce, increased the amount of deflection of tube elements like this, and the limit that is equal to the traction limit is provided, so, compare with the flexible tube that is used for automobile exhaust pipeline of conventional known, importantly it has the big traction limit.If the traction limit is bigger in the predetermined length of the flexible tube that is used for automobile exhaust pipeline, then bellows element increases with the durability of outer flexible element, this is because bellows element and outer flexible element are not subjected to the influence of ultimate stress, this ultimate stress in the big deflection (bending) of the main part of flexible element because structural limitations and generation during limited.Therefore, one of them advantage that is used for the flexible tube of automobile exhaust pipeline according to the present invention as shown in Figure 1 is that weight reduces.The flexible tube that is used for automobile exhaust pipeline as shown in Figure 1 is mainly used in diesel engine.Particularly, the interior pipe of employing braided metal silk screen is beneficial to and is used for diesel engine.
Now, the flexible tube that is used for automobile exhaust pipeline according to second preferred implementation of the present invention is described in more detail, wherein, for fear of unnecessary repetition, to adopt with the first mode of execution mode of comparing and describe second preferred implementation, wherein components identical will adopt with first mode of execution in the identical reference character quoted represent.
For the design of bellows element 2, wavy 3, groove 7, outer flexible element 4 with elastic element 5, except the quantity of the radially extension part that forms groove 7 was less, the design of the design of second mode of execution and first mode of execution was equal to substantially.In second mode of execution, be provided with 4 wavy, wherein wavy of two inner terminals has identical radially extension.
Different with first mode of execution, shown in the top of Fig. 2, adopted buckle-type flexible pipe 12 in second mode of execution.The buckle-type flexible pipe is formed by helical element, and this helical element connects in known manner by hook design.Buckle-type flexible pipe 12, bellows element 2 and outer flexible element 4 are supported on outer ring element 9 by interior ring-type element 8.Interior ring-type element 8 since adopted buckle-type flexible pipe 12 thus be designed to first mode of execution in different slightly.Adopt the mode of execution of buckle-type flexible pipe 12 in diesel engine, to use.Compare with the flexible pipe of braided metal silk screen type, when the flexible tube that is used for automobile exhaust pipeline extends, the resistance that uses buckle-type flexible pipe 12 can reduce vertically.Yet,, when the buckle-type flexible pipe extends fully, have sizable limit of stretch by the design of buckle-type flexible pipe 12.The function aspects of flexible element 4 outside, first and second mode of executions are identical.
Though carried out above stated specification with reference to preferred implementation, it should be understood that under the situation of the spirit and scope that do not break away from the present invention and claims, those skilled in the art can variations and modifications of the present invention.
Claims (19)
1, a kind of flexible tube that is used for automobile exhaust pipeline, this flexible tube comprises:
The wavy metal tube elements, this wavy metal tube elements spirality or the annular wavy;
Outer flexible element, this outer flexible element is arranged around described bellows element; And
Elastic element, this elastic element are used to make at least one cross section of described outer flexible element to be partial to described bellows element,
Wherein said outer flexible element forms screen net structure.
2, flexible tube according to claim 1, wherein, the screen net structure of described outer flexible element is a reticular structure.
3, flexible tube according to claim 2, wherein, the screen net structure of described outer flexible element is a braiding structure.
4, according to each described flexible tube in the claim 1 to 3, wherein, described outer flexible element is screen net structure completely substantially.
5, according to each described flexible tube in the claim 1 to 3, wherein, described outer flexible element is made by the wire material.
6, according to each described flexible tube in the claim 1 to 3, wherein, described outer flexible element has open part between the wire material, and described opening occupy described outer flexible element whole surface at least 50%.
7, according to each described flexible tube in the claim 1 to 3, wherein, described outer flexible element forms the flexible pipe of arranging around described bellows element.
8, according to each described flexible tube in the claim 1 to 3, wherein, described outer flexible element is attached to the two ends of described bellows element.
9, according to each described flexible tube in the claim 1 to 3, wherein, described outer flexible element is at least along its axial elasticity distortion.
10, according to each described flexible tube in the claim 1 to 3, wherein, described bellows element has wavy, its wavy adjacent weak point of described wavy radially ratio of elongation, and radially extend described wavy short formation one groove.
11, according to each described flexible tube in the claim 1 to 3, wherein, described groove is positioned in the kernel of section of described bellows element.
12, according to each described flexible tube in the claim 1 to 3, wherein, described bellows element is formed by a plurality of grooves.
13, according to each described flexible tube in the claim 1 to 3, wherein, described elastic element engages with the outer surface of described outer flexible element.
14, according to each described flexible tube in the claim 1 to 3, wherein, described elastic element is arranged around described groove.
15, according to each described flexible tube in the claim 1 to 3, wherein, described outer flexible element is supported on described elastic element and at least one and forms between described wavy of described groove.
16, according to each described flexible tube in the claim 1 to 3, wherein, described elastic element to small part is received in the described groove.
17, according to each described flexible tube in the claim 1 to 3, wherein, this pipe has interior pipe in described bellows element.
18, flexible tube according to claim 17, wherein, described interior pipe is made by the buckle-type flexible pipe.
19, flexible tube according to claim 17, wherein, described interior pipe is made by flexible hose.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2007-0116534 | 2007-11-15 | ||
| KR1020070116534A KR100906552B1 (en) | 2007-11-15 | 2007-11-15 | Flexible Tube for Exhaust Pipe of automobile |
| KR1020070116534 | 2007-11-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101435359A true CN101435359A (en) | 2009-05-20 |
| CN101435359B CN101435359B (en) | 2011-08-10 |
Family
ID=40709968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101842092A Expired - Fee Related CN101435359B (en) | 2007-11-15 | 2008-11-17 | Flexible pipe for automobile exhaust pipeline |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100906552B1 (en) |
| CN (1) | CN101435359B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886568A (en) * | 2010-06-02 | 2010-11-17 | 无锡新得宝金属软管有限公司 | Automobile flexible joint and assembling method thereof |
| CN101603449B (en) * | 2009-07-06 | 2012-05-23 | 奇瑞汽车股份有限公司 | Vibration isolating device of vehicle exhaust system and manufacturing method thereof |
| CN102954574A (en) * | 2011-08-19 | 2013-03-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Buffer and air conditioner with same |
| CN103090150A (en) * | 2011-10-29 | 2013-05-08 | 重庆川仪自动化股份有限公司 | Corrugated reducer pipe |
| CN103090149A (en) * | 2011-10-29 | 2013-05-08 | 重庆川仪自动化股份有限公司 | Connecting structure for corrugated pipe and flanges |
| CN104234807A (en) * | 2013-06-14 | 2014-12-24 | 常州良旭车辆配件有限公司 | Exhaust hose and compressing machine tool for manufacturing same |
| CN104421562A (en) * | 2013-08-21 | 2015-03-18 | 博瓦波纹管和补偿器技术有限公司 | Uncoupling element |
| CN104471301A (en) * | 2013-05-17 | 2015-03-25 | 烟台世杰汽车配件有限公司 | Flexible pipeline device |
| CN104791059A (en) * | 2014-01-22 | 2015-07-22 | 烟台世杰汽车配件有限公司 | Flexible tube for exhaust pipe of automobile |
| CN110131498A (en) * | 2019-05-21 | 2019-08-16 | 三七知明(北京)科技有限公司 | Sealing device is used in a kind of docking of motor bellows |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101857033B1 (en) | 2012-12-28 | 2018-05-14 | 현대자동차주식회사 | Manufacturing method of corrugated preform using braiding process and corrugated preform manufactured by the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR930006052Y1 (en) * | 1991-05-03 | 1993-09-13 | 송재상 | Flexible hose |
| JPH09209748A (en) * | 1996-02-02 | 1997-08-12 | Calsonic Corp | Flexible tube for automobile exhaust system |
| KR200243765Y1 (en) * | 1999-05-24 | 2001-09-25 | 김용호 | Exhaust decoupler system |
| KR100353123B1 (en) | 2000-08-28 | 2002-09-16 | 주식회사 에스제이엠 | Exhaust pipe decoupler for automobiles |
| KR100457210B1 (en) | 2002-01-07 | 2004-11-16 | 주식회사 에스제이엠 | Exhaust pipe decoupler for vehicles |
| CN2797765Y (en) * | 2005-05-26 | 2006-07-19 | 王海力 | Damper used for noise silencer |
| KR100735940B1 (en) * | 2005-06-15 | 2007-07-06 | 주식회사 에스제이엠 | Flexible Tube for Exhaust Pipe of automobile |
-
2007
- 2007-11-15 KR KR1020070116534A patent/KR100906552B1/en active IP Right Grant
-
2008
- 2008-11-17 CN CN2008101842092A patent/CN101435359B/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101603449B (en) * | 2009-07-06 | 2012-05-23 | 奇瑞汽车股份有限公司 | Vibration isolating device of vehicle exhaust system and manufacturing method thereof |
| CN101886568A (en) * | 2010-06-02 | 2010-11-17 | 无锡新得宝金属软管有限公司 | Automobile flexible joint and assembling method thereof |
| CN102954574A (en) * | 2011-08-19 | 2013-03-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Buffer and air conditioner with same |
| CN103090150A (en) * | 2011-10-29 | 2013-05-08 | 重庆川仪自动化股份有限公司 | Corrugated reducer pipe |
| CN103090149A (en) * | 2011-10-29 | 2013-05-08 | 重庆川仪自动化股份有限公司 | Connecting structure for corrugated pipe and flanges |
| US9920509B2 (en) | 2013-05-17 | 2018-03-20 | Sjm Co. Ltd. | Flexible conduit element |
| CN104471301A (en) * | 2013-05-17 | 2015-03-25 | 烟台世杰汽车配件有限公司 | Flexible pipeline device |
| CN104471301B (en) * | 2013-05-17 | 2018-10-02 | 烟台世杰汽车配件有限公司 | flexible pipeline device |
| CN104234807A (en) * | 2013-06-14 | 2014-12-24 | 常州良旭车辆配件有限公司 | Exhaust hose and compressing machine tool for manufacturing same |
| CN104421562A (en) * | 2013-08-21 | 2015-03-18 | 博瓦波纹管和补偿器技术有限公司 | Uncoupling element |
| CN104791059B (en) * | 2014-01-22 | 2017-08-11 | 烟台世杰汽车配件有限公司 | The flexible pipe of the blast pipe of steam supply car |
| CN104791059A (en) * | 2014-01-22 | 2015-07-22 | 烟台世杰汽车配件有限公司 | Flexible tube for exhaust pipe of automobile |
| CN110131498A (en) * | 2019-05-21 | 2019-08-16 | 三七知明(北京)科技有限公司 | Sealing device is used in a kind of docking of motor bellows |
| CN110131498B (en) * | 2019-05-21 | 2020-09-29 | 三七知明(北京)科技有限公司 | Sealing device for butt joint of automobile corrugated pipes |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101435359B (en) | 2011-08-10 |
| KR100906552B1 (en) | 2009-07-07 |
| KR20090050222A (en) | 2009-05-20 |
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