CN103016096B - Supercharger oil return tube with improved structure - Google Patents
Supercharger oil return tube with improved structure Download PDFInfo
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- CN103016096B CN103016096B CN201210574438.1A CN201210574438A CN103016096B CN 103016096 B CN103016096 B CN 103016096B CN 201210574438 A CN201210574438 A CN 201210574438A CN 103016096 B CN103016096 B CN 103016096B
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- bellows
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- flange
- oil return
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Abstract
The invention provides a supercharger oil return tube with an improved structure. The supercharger oil return tube with the improved structure comprises a corrugated tube. One end of the corrugated tube is connected with a joint; the other end of the corrugated tube is connected with a flange; the corrugated tube comprises a smooth tube and a corrugated section; the corrugated section is arranged at the bent position of the corrugated tube; and the corrugated tube is 0.3-0.5mm in wall thickness. The supercharger oil return tube provided by the invention has both rigidity and flexibility and is broad in using temperature range, convenient in assembly, simple in process, low in cost, high in reliability and long in service life.
Description
Technical field
The invention belongs to technical field of internal combustion engines, be specifically related to a kind of oil return pipe of supercharger of modified node method.
Background technique
Oil return pipe of supercharger is the passage of pressurized machine oil return, is to ensure that pressurized machine realizes the vitals of effectively lubricating.Current oil return pipe of supercharger generally adopts following several structure:
Full bellows
CN01252311.9 discloses a kind of diesel engine pressurizer oil pipe assembly, form primarily of metal bellows and flange, described metal bellows is overall without of transition tube docking, and it is anchor ring that enlarging flange after in described flange intermediate hole is inserted in described metal bellows one end.This structure is the poor rigidity of full bellows, pipe, easily shatters, shakes disconnected, cause oil return pipe of supercharger leakage of oil; The sealing of flange and pressurized machine adopts enlarging turnup structure, does not have rebound degree, easily in sealing surface leakage of oil.
Adopt the Placement of hard tube+rubber pipe+hard tube
Adopt the Placement of hard tube+rubber pipe+hard tube, good rigidly, but assembling being poor, complex procedures, and rubber easily aging, explosion, cannot use in high-temperature zone.
Adopt the Placement of hard tube+bellows
CN200920141191.8 discloses a kind of oil return pipe of supercharger, comprises flange (or flared tube and nut), oil return steel pipe, bellows and pipe clamp assembly.Described in this structure, steel pipe becomes to be integrated with bellows-welding, has taken into account the advantage of steel pipe and bellows simultaneously, but the two material is different, welding difficulty, and easily occur that stress is concentrated at welding region, to rupture because of vibrations so also easy, sealing-off, become new leak point; In addition this structural manufacturing process is complicated, and cost is high.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide a kind of oil return pipe of supercharger of modified node method, take into account rigidity and flexibility simultaneously, serviceability temperature scope is wide, easy to assembly, and technique is simple, with low cost, good reliability, and long service life.
In order to realize object of the present invention, the technical solution adopted in the present invention is:
An oil return pipe of supercharger for modified node method, comprises bellows, and described bellows one end is welded with joint, and the other end is welded with flange; Described bellows is integrated type, and described bellows comprises light pipe and bellows segment, and described bellows segment is located at the bending position of bellows; Described bellows is provided with more than 2 sections or 2 sections discontinuous bellows segment; The wall thickness of described bellows is 0.45mm; Described flange and described joint are connected as a single entity by copper brazing with described bellows respectively, and the material of three is SUS304.
Preferably, described flange is provided with the step hole matched with the external diameter of described bellows.More preferably, the thickness of described flange is 6mm ~ 10mm, is more preferably 8mm; Described step hole depth is 1mm ~ 2mm.
Preferably, the sealing surface of described flange is machining face, planeness≤0.1mm.
Preferably, described joint is provided with backstop boss and sealed groove, and the one end near described bellows on joint is located at by described backstop boss, and described sealed groove is located at the one end away from described bellows on joint.Described backstop boss is annular boss, for limiting the insertion depth of joint; Described sealed groove is the circular groove circumferentially offered on the external cylindrical surface of joint.The number of described sealed groove is more than 1, is more preferably 2.
Preferably, described return tube also comprises O shape circle, and described O shape circle is contained on described joint.Preferred, described O shape circle is contained in the sealed groove on described joint, and the described internal diameter of O shape circle and the external diameter of described sealed groove match.
Advantageous Effects of the present invention is as follows:
1, compared with full bellows, the present invention is only provided with bellows segment in middle crooked place, and by preferred bellows wall thickness, bellows stiff and flexibility is had both, existing flexibility enough meets the requirement being easy to assemble, and has again enough rigidity to avoid bellows to shatter or shakes disconnected; In addition flanged surface is machining face, and planeness and roughness are easy to ensure, fitted seal gasket seal is more reliable.
2, compared with the Placement of hard tube+rubber pipe+hard tube, after only need dipping in oil on O shape circle when the present invention assembles, joint is inserted in the spill port of cylinder body, easy to assembly, man-hour more than 80% can be saved; Can high-temperature zone Long-Time Service more than 200 DEG C, using scope is wide; And there is not aging, the explosion problem of rubber pipe, longer service life.
3, compared with the Placement of hard tube+bellows, bellows of the present invention is integrated type, and do not exist because welding the potential safety hazard brought in the middle of pipeline, reliability is higher, and technique is simple, and cost is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention,
Fig. 2 is the local A enlarged view of Fig. 1,
Fig. 3 is the local B enlarged view of Fig. 1,
In figure, sequence number illustrates: flange 1, step hole 11, sealing surface 12, bellows 2, bellows segment 21, bellows segment 22, joint 3, backstop boss 31, sealed groove 32, O shape circle 4.
Embodiment
Below in conjunction with accompanying drawing, a specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention not by the restriction of embodiment.
For being only convenient to, following institute drawings attached explains that the present invention instructs substantially, in accompanying drawing by form the number of assembly of preferred embodiment, position, relation and size extension will have illustrated by, in reading and understand the change that instruction of the present invention is correlated with afterwards and belong to industry technical ability.In addition, in reading and after understanding instruction of the present invention, specific strength, weight, intensity and the accurate dimension of similar requirement and the change of dimension scale is coordinated also to belong to industry technical ability.
See Fig. 1, a kind of oil return pipe of supercharger of modified node method, comprises bellows 2, and described bellows one end is connected with joint 3, and the other end is connected with flange 1; Described bellows comprises light pipe and bellows segment 21,22, and described bellows segment 21,22 is located at the bending position of bellows 2; The wall thickness of described bellows is 0.3mm ~ 0.5mm.
See Fig. 1, described bellows 2 is integrated type, is respectively equipped with bellows segment 21 and bellows segment 22 at middle two place's bending positions, and two bellows segment 21,22 are discontinuous, and remaining part is light pipe.The wall thickness range of described bellows 2 is 0.3mm ~ 0.5mm, is preferably 0.45mm.Can ensure that bellows 2 has suitable rigidity and flexibility like this, both can not easily shatter because of poor rigidity or shake disconnected, also can not be difficult to assembling and adjustment because of flexibility difference.In addition, because this bellows is integrated type, in the middle of pipeline, there is not the potential safety hazard of welding and bringing, reliability is higher, and technique is simple, and cost is low.Prove that this wall thickness is suitably flexible by assembling and verification experimental verification, the matching requirements of automobile can be met, the test requirements document of engine reliability can be met again simultaneously.
See Fig. 1 and Fig. 2, described flange 1 can select the flange of appropriate size on market as required.In the preferred embodiment of the present invention, described flange 1 is provided with the step hole 11 matched with the external diameter of described bellows 2; The sealing surface 12 of described flange 1 is machining face, and planeness≤0.1mm, can ensure the planeness of the sealing surface of flange 1 like this, and fitted seal gasket seal is more reliable.
In another preferred embodiment, the thickness of described flange is 6mm ~ 10mm, is more preferably 8mm; Described step hole depth is 1mm ~ 2mm.
See Fig. 1 and Fig. 3, described joint 3 is provided with backstop boss 31 and sealed groove 32, the one end near described bellows segment 22 on joint 3 is located at by described backstop boss 31, and described sealed groove 32 is located at the one end away from described bellows segment 22 on joint 3.Described backstop boss 31 is annular boss, for limiting the insertion depth of joint; Described sealed groove 32 is the circular grooves circumferentially offered on the external cylindrical surface of joint 3.The number of described sealed groove 32 is more than 1, is more preferably 2.
In another preferred embodiment, described return tube also comprises O shape circle 4, and described O shape circle 4 is contained in the sealed groove 32 on described joint 3, and the head of described joint 3 is provided with and facilitates O shape to enclose the reducing of installing.After only need dipping in oil on O shape circle 4 during assembling, joint is inserted in the spill port of cylinder body, easy to assembly, man-hour more than 80% can be saved, and sealing is reliable.
Described flange 1 and joint 3 are connected as a single entity by copper brazing with bellows 2 respectively, and three's material is identical, are all stainless steel SUS304.
Be only a specific embodiment of the present invention above, but the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (6)
1. an oil return pipe of supercharger for modified node method, is characterized in that, comprises bellows, and described bellows one end is welded with joint, and the other end is welded with flange; Described bellows is integrated type, and described bellows comprises light pipe and bellows segment, and described bellows segment is located at the crooked place of bellows; Described bellows is provided with more than 2 sections or 2 sections discontinuous bellows segment; The wall thickness of described bellows is 0.45mm; Described flange and described joint are connected as a single entity by copper brazing with described bellows respectively, and the material of three is SUS304.
2. return tube according to claim 1, is characterized in that, described flange is provided with the step hole matched with the external diameter of described bellows.
3. return tube according to claim 1, is characterized in that, the sealing surface of described flange is machining face, planeness≤0.1mm.
4. return tube according to claim 1, is characterized in that, described joint is provided with backstop boss and sealed groove, and the one end near described bellows on joint is located at by described backstop boss, and described sealed groove is located at the one end away from described bellows on joint.
5. return tube according to claim 1, is characterized in that, described return tube also comprises O shape circle, and described O shape circle is contained on described joint.
6. return tube according to claim 5, is characterized in that, described O shape circle is contained in the sealed groove on described joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210574438.1A CN103016096B (en) | 2012-12-26 | 2012-12-26 | Supercharger oil return tube with improved structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210574438.1A CN103016096B (en) | 2012-12-26 | 2012-12-26 | Supercharger oil return tube with improved structure |
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| Publication Number | Publication Date |
|---|---|
| CN103016096A CN103016096A (en) | 2013-04-03 |
| CN103016096B true CN103016096B (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210574438.1A Active CN103016096B (en) | 2012-12-26 | 2012-12-26 | Supercharger oil return tube with improved structure |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117090681B (en) * | 2023-10-18 | 2024-02-02 | 江苏腾驰科技有限公司 | Supercharger lubrication oil return pipe assembly without brazing seam and processing technology thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2522623Y (en) * | 2001-10-30 | 2002-11-27 | 十堰倍力工贸有限公司 | Diesel engine supercharger oil-returnpipe assembly |
| CN1349865A (en) * | 2001-10-30 | 2002-05-22 | 十堰倍力工贸有限公司 | Manufacture of corrugated metal pipe used as oil return pipe in supercharger of diesel engine |
| CN2628742Y (en) * | 2002-04-12 | 2004-07-28 | 十堰倍力工贸有限公司 | Special booster oil return pipe assembly for Dongfeng kangmings, yu diesel engine and Dongfeng engine |
| FR2913261A3 (en) * | 2007-03-01 | 2008-09-05 | Renault Sas | Upper and lower oil return pipelines connecting arrangement for vehicle, has flange and joint of upper pipeline housed in diameter part of lower pipeline, where pipelines are pivoted with respect to one another to ensure pivot connection |
| CN202220637U (en) * | 2011-08-31 | 2012-05-16 | 浙江吉利汽车研究院有限公司 | Supercharger oil return pipe assembly |
| CN202611861U (en) * | 2012-03-31 | 2012-12-19 | 长城汽车股份有限公司 | Oil return device for supercharger |
| CN203035293U (en) * | 2012-12-26 | 2013-07-03 | 安徽江淮汽车股份有限公司 | Structural-improved supercharger oil return pipe |
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- 2012-12-26 CN CN201210574438.1A patent/CN103016096B/en active Active
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Address after: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
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Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230022 No. 176 Dongliu Road, Hefei City, Anhui Province Patentee before: Anhui Jianghuai Automobile Group Limited by Share Ltd |