CN103016096A - Supercharger oil return tube with improved structure - Google Patents
Supercharger oil return tube with improved structure Download PDFInfo
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- CN103016096A CN103016096A CN2012105744381A CN201210574438A CN103016096A CN 103016096 A CN103016096 A CN 103016096A CN 2012105744381 A CN2012105744381 A CN 2012105744381A CN 201210574438 A CN201210574438 A CN 201210574438A CN 103016096 A CN103016096 A CN 103016096A
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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 that improves structure.
Background technique
Oil return pipe of supercharger is the passage that pressurized machine lubricant oil refluxes, and is the vitals that guarantees pressurized machine realization effectively lubricating.The following several structures of the at present general employing of oil return pipe of supercharger:
Full bellows
CN01252311.9 discloses a kind of diesel engine oil return pipe of supercharger assembly, mainly consisted of by metal bellows and flange, described metal bellows is the integral body without the transition tube docking, and the enlarging flange was anchor ring after described metal bellows one end inserted in the described flange intermediate hole.This structure is full bellows, and the poor rigidity of pipe shatters, shakes disconnected easily, causes the oil return pipe of supercharger leakage of oil; The enlarging turnup structure is adopted in the sealing of adpting flange and pressurized machine, does not have rebound degree, easily in the 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 is poor, and complex procedures, and easily aging, explosion of rubber can't be used in the 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.The described steel pipe of this structure and bellows-welding become one, and have taken into account simultaneously the advantage of steel pipe and bellows, but the two material is different, the welding difficulty, and be prone to stress at welding region and concentrate, so also easily because vibrations are ruptured, sealing-off, become new leak point; This structural manufacturing process is complicated in addition, and cost is high.
Summary of the invention
For the deficiencies in the prior art, the purpose of this invention is to provide a kind of oil return pipe of supercharger that improves structure, take into account simultaneously rigidity and flexibility, the serviceability temperature scope is wide, and is easy to assembly, and technique is simple, and is with low cost, good reliability, and long service life.
In order to realize purpose of the present invention, the technical solution adopted in the present invention is:
A kind of oil return pipe of supercharger that improves structure comprises bellows, and described bellows one end is connected with joint, and the other end is connected with flange; Described bellows comprises light pipe and bellows segment, and described bellows segment is located at the bending position of bellows; The wall thickness of described bellows is 0.3mm～0.5mm.
Preferably, described bellows is provided with discontinuous bellows segment more than 2 sections or 2 sections.
Preferably, the wall thickness of described bellows is 0.45mm.
Preferably, described bellows is integrated type, and described flange and joint are welded on respectively the two ends of described bellows.
Preferably, described flange is provided with the step hole that the external diameter with described bellows is complementary; More preferably, the thickness of described flange is 6mm～10mm, 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 described backstop boss is located on the joint end near described bellows, and described sealed groove is located on the joint end away from described bellows.Described backstop boss is annular boss, is used for limiting the insertion depth of joint; Described sealed groove is along the circular groove of circumferentially offering on the external cylindrical surface of joint.The number of described sealed groove is more than 1, more preferably is 2.
Preferably, described return tube also comprises O shape circle, and described O shape circle is contained on the described joint.Preferred, described O shape is enclosed in the sealed groove that is contained on the described joint, and the internal diameter of described O shape circle and the external diameter of described sealed groove are complementary.
Preferably, the material of described flange, joint and bellows is identical, is preferably alloy material, more preferably stainless steel SUS304.
Useful technique effect of the present invention is as follows:
1, compares with full bellows, the present invention only is provided with bellows segment in middle crooked place, and by preferred bellows wall thickness, bellows stiff and flexibility is had both, existing enough flexibility satisfies the requirement that is easy to assemble, and has again enough rigidity to avoid bellows to shatter or shake disconnected; Connecting flange faces is machining face in addition, and planeness and roughness are easy to guarantee that the fitted seal gasket seal is more reliable.
2, compare with the Placement of hard tube+rubber pipe+hard tube, only need when the present invention assembles after O shape circle dips in oil, joint to be inserted in the spill port of cylinder body and get final product, easy to assembly, can save man-hour more than 80%; Can use for a long time in the high-temperature zone more than 200 ℃, using scope is wide; And aging, the explosion problem that do not have rubber pipe, longer service life.
3, compare with the Placement of hard tube+bellows, bellows of the present invention is integrated type, does not have the potential safety hazard of bringing because of welding in the middle of pipeline, and reliability is higher, and technique is simple, and cost is low.
Description of drawings
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,
Sequence number explanation among the figure: 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 is not subjected to the restriction of embodiment.
Following institute drawings attached explains that for only being convenient to the present invention instructs substantially, in the accompanying drawing will to the number of the assembly that consists of preferred embodiment, position, relation, and the extension of size will have illustrated, read and understand instruction of the present invention afterwards relevant change belong to industry technical ability.In addition, after reading and understanding instruction of the present invention, cooperate specific strength, weight, intensity, the accurate dimension that reaches similar requirement and the change of dimension scale also to belong to industry technical ability.
Referring to Fig. 1, a kind of oil return pipe of supercharger that improves structure 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.
Referring to 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, the 22nd, and discontinuous, remaining part is light pipe.The wall thickness range of described bellows 2 is 0.3mm～0.5mm, is preferably 0.45mm.Can guarantee that like this bellows 2 has suitable rigidity and flexibility, neither can shatter easily or shake disconnected because of poor rigidity, also can not be difficult to because flexibility is poor assembling and adjust.In addition, because this bellows is integrated type, the potential safety hazard that in the middle of pipeline, does not exist welding to bring, reliability is higher, and technique is simple, and cost is low.Prove that by assembling and verification experimental verification this wall thickness is suitably flexible, can satisfy the matching requirements of automobile, can satisfy again the test requirements document of engine reliability simultaneously.
Referring to Fig. 1 and Fig. 2, described flange 1 can be selected the flange of appropriate size on the market as required.In a preferred embodiment of the present invention, described flange 1 is provided with the step hole 11 that the external diameter with described bellows 2 is complementary; The sealing surface 12 of described adpting flange 1 is machining face, and planeness≤0.1mm can guarantee the planeness of the sealing surface of adpting flange 1 like this, and the fitted seal gasket seal is more reliable.
In another preferred embodiment, the thickness of described flange is 6mm～10mm, more preferably 8mm; Described step hole depth is 1mm～2mm.
Referring to Fig. 1 and Fig. 3, be provided with backstop boss 31 and sealed groove 32 on the described joint 3, described backstop boss 31 is located on the joint 3 end near described bellows segment 22, and described sealed groove 32 is located on the joint 3 end away from described bellows segment 22.Described backstop boss 31 is annular boss, is used for limiting the insertion depth of joint; Described sealed groove 32 is along the circular groove of circumferentially offering on the external cylindrical surface of joint 3.The number of described sealed groove 32 is more than 1, more preferably is 2.
In another preferred embodiment, described return tube also comprises O shape circle 4, and in described O shape circle 4 sealed grooves 32 that are contained on the described joint 3, the head of described joint 3 is provided with the reducing that makes things convenient for O shape circle to install.Only need during assembling after O shape circle 4 dips in oil, joint to be inserted in the spill port of cylinder body and get final product, easy to assembly, can save man-hour more than 80%, and sealing is reliably.
Described adpting flange 1 and joint 3 are connected as a single entity by copper brazing with bellows 2 respectively, and three's material is identical, all is stainless steel SUS304.
More than disclosed only be a specific embodiment of the present invention, 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 (10)
1. an oil return pipe of supercharger that improves structure is characterized in that, comprises bellows, and described bellows one end is connected with joint, and the other end is connected with flange; Described bellows comprises light pipe and bellows segment, and described bellows segment is located at the crooked place of bellows; The wall thickness of described bellows is 0.3mm～0.5mm.
2. return tube according to claim 1 is characterized in that, described bellows is provided with discontinuous bellows segment more than 2 sections or 2 sections.
3. return tube according to claim 1 is characterized in that, the wall thickness of described bellows is 0.45mm.
4. return tube according to claim 1 is characterized in that, described bellows is integrated type, and described flange and joint are welded on respectively the two ends of described bellows.
5. return tube according to claim 1 is characterized in that, described flange is provided with the step hole that the external diameter with described bellows is complementary.
6. return tube according to claim 1 is characterized in that, the sealing surface of described flange is machining face, planeness≤0.1mm.
7. return tube according to claim 1 is characterized in that, described joint is provided with backstop boss and sealed groove, and described backstop boss is located on the joint end near described bellows, and described sealed groove is located on the joint end away from described bellows.
8. 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 the described joint.
9. return tube according to claim 8 is characterized in that, described O shape is enclosed in the sealed groove that is contained on the described joint.
10. the described return tube of any one is characterized in that according to claim 1 ~ 9, and the material of described flange, joint and bellows is identical.
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 true CN103016096A (en) | 2013-04-03 |
| CN103016096B 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117090681A (en) * | 2023-10-18 | 2023-11-21 | 江苏腾驰科技有限公司 | Supercharger lubrication oil return pipe assembly without brazing seam and processing technology thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN2522623Y (en) * | 2001-10-30 | 2002-11-27 | 十堰倍力工贸有限公司 | Diesel engine supercharger oil-returnpipe assembly |
| 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 |
-
2012
- 2012-12-26 CN CN201210574438.1A patent/CN103016096B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN2522623Y (en) * | 2001-10-30 | 2002-11-27 | 十堰倍力工贸有限公司 | Diesel engine supercharger oil-returnpipe assembly |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117090681A (en) * | 2023-10-18 | 2023-11-21 | 江苏腾驰科技有限公司 | Supercharger lubrication oil return pipe assembly without brazing seam and processing technology thereof |
| 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 |
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| Publication number | Publication date |
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| CN103016096B (en) | 2015-04-08 |
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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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| CP02 | Change in the address of a patent holder |
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 |
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