CN103362573B - Double-channel volute of turbocharger - Google Patents
Double-channel volute of turbocharger Download PDFInfo
- Publication number
- CN103362573B CN103362573B CN201310317064.XA CN201310317064A CN103362573B CN 103362573 B CN103362573 B CN 103362573B CN 201310317064 A CN201310317064 A CN 201310317064A CN 103362573 B CN103362573 B CN 103362573B
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- Prior art keywords
- volute
- turbocharger
- division wall
- double
- channel
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- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 230000035882 stress Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
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- Supercharger (AREA)
Abstract
The invention belongs to the technical field of turbochargers and relates to a double-channel volute of a turbocharger. The double-channel volute of the turbocharger comprises a volute. A channel of the volute is divided into a left side channel and a right side channel by a division wall. The double-channel volute of the turbocharger is characterized in that the division wall is provided with grooves in an extending manner; the number of the grooves is two; and the two grooves are symmetrically arranged on two end faces of the division wall. The double-channel volute of the turbocharger provided by the invention has the advantages that the structure is simple, compact and reasonable, the reliability of the volute of the turbocharger can be effectively improved, the volute is simple to process and manufacture, and the partial material cost can be saved.
Description
Technical field
The invention belongs to turbo-charger technical field, relate to a kind of double-channel volute of turbocharger.
Background technique
During turbocharger operation, turbine shroud is constantly heated and cools.When motor starts from the state of cooling, the temperature of turbine shroud is basic the same with the external world, but its temperature can sharply rise in normal course of operation, thus causes volute to expand.After motor is switched off, volute just begins to cool down and shrinks.The reexpansion of volute and cooling meat make it easily produce thermal fatigue cracking, especially in the place different with shrinkage possibility of expanding.Spiral case inlet flange is one of place needing most concern, easily produces very high thermal stress at the fillet place of flange.
But existing double flow channel spiral case also has inevitable defect, and mainly spiral case in use, because temperature cycles easily causes volute flange to crack, and produce thermal fatigue failure, have a strong impact on the global reliability of pressurized machine.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of structure simple, ingenious, rational double-channel volute of turbocharger, this spiral case manufacturing is simple, and spiral case global reliability is high.
According to technological scheme provided by the invention: a kind of double-channel volute of turbocharger, comprises spiral case, the runner of described spiral case is divided into left side runner and right side runner by division wall, is characterised in that: extended fluted on described division wall.
As a further improvement on the present invention, described groove has two, and two grooves are symmetricly set on the end face of division wall both sides.
As a further improvement on the present invention, described groove has one, and this groove is arranged on the either side end face of division wall.
As a further improvement on the present invention, the through division wall both ends of the surface of described groove, link up left side runner and right side runner.
As a further improvement on the present invention, described groove extends to spiral case aditus laryngis portion.
As a further improvement on the present invention, described groove extends to division wall end.
As a further improvement on the present invention, described groove longitudinal section semicircular in shape.
Compared with prior art, advantage is in the present invention: structure of the present invention is simple, compact and reasonable, effectively can improve the reliability of spiral casing of pressure booster, and spiral case manufacturing is simple, can save portion of material cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first mode of execution of the present invention.
Fig. 2 is the structural representation of the second mode of execution of the present invention.
Fig. 3 is the structural representation of the third mode of execution of the present invention.
Fig. 4 is that groove of the present invention extends to division wall end construction schematic diagram.
Fig. 5 is that groove of the present invention extends to spiral case aditus laryngis place structural representation.
Embodiment
Below in conjunction with concrete drawings and Examples, the invention will be further described.
As shown in Fig. 1 ~ 5, comprise spiral case 1, groove 2, flange 3, division wall 4, left side runner 5, right side runner 6 etc.
As shown in Figure 1, the first mode of execution of the present invention: a kind of double-channel volute of turbocharger, comprise spiral case 1, the runner of described spiral case 1 is divided into left side runner 5 and right side runner 6 by division wall 4, an extended groove 2 respectively on the both sides end face that division wall 4 is positioned at runner, and two grooves 2 are symmetricly set in division wall 4 both ends of the surface, concentrated for effectively eliminating stress, groove 2 longitudinal section arranges semicircular in shape, in concrete practice, as shown in Figure 5, the groove 2 for the full division wall turbocharger volute of double flow channel extends to spiral case aditus laryngis place; As shown in Figure 4, the groove 2 for double flow channel partial division wall turbocharger volute extends to division wall 4 rear end, and for ensureing the overall uniform force of spiral case, groove 2 is opened in division wall 4 intermediate portion usually.
Fig. 2 shows the second mode of execution of the present invention, the difference of this mode of execution and the first mode of execution is, division wall 4 is only offered a groove 2, groove 2 can be opened in division wall 4 upper left side runner 5 and also can be opened in the runner 6 of right side, simultaneously for ensureing flange 3, division wall 4 uniform force, groove 2 is preferably opened in the intermediate portion of division wall 4.
Fig. 3 shows the third mode of execution of the present invention, the difference of this mode of execution and above-mentioned two kinds of mode of executions: groove 2 is a through slot, that is, groove 2 is opened in the middle position of division wall 4, and groove 2 links up left side runner 5 and right side runner 6.
Groove 2 of the present invention is all extended in spiral casing flow passage from the end face of flange 3.The new design of the present invention make use of the principle of initiatively stress relief, slot in the intermediate portion of division wall 4, after fluting, the intermediate portion of division wall 4 will be transferred in the low life-span region of volute flange 3, and the life-span of the connection part of periphery will significantly improve, this is because the fluting of intermediate portion can the stress of a lot of release peripheral join positions of degree, thus improved in the Twin channel volute flange life-span, thus improve the reliability of volute design.
More than describing is explanation of the invention, and be not the restriction to invention, limited range of the present invention, see claim, within protection scope of the present invention, can do any type of amendment.
Structure of the present invention is simple, compact and reasonable, effectively can improve the reliability of spiral casing of pressure booster, and spiral case manufacturing is simple, can save portion of material cost.
Claims (2)
1. a double-channel volute of turbocharger, comprises spiral case (1), and the runner of described spiral case (1) is divided into left side runner (5) and right side runner (6) by division wall (4), it is characterized in that: described division wall (4) upper extended fluted (2);
Described groove (2) has two, and two grooves (2) are symmetricly set on the end face of division wall (4) both sides;
Described groove (2) extends to spiral case aditus laryngis portion; Described groove (2) longitudinal section semicircular in shape.
2. double-channel volute of turbocharger as claimed in claim 1, is characterized in that: described groove (2) extends to division wall (4) rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310317064.XA CN103362573B (en) | 2013-07-25 | 2013-07-25 | Double-channel volute of turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310317064.XA CN103362573B (en) | 2013-07-25 | 2013-07-25 | Double-channel volute of turbocharger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103362573A CN103362573A (en) | 2013-10-23 |
| CN103362573B true CN103362573B (en) | 2015-03-04 |
Family
ID=49364740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310317064.XA Active CN103362573B (en) | 2013-07-25 | 2013-07-25 | Double-channel volute of turbocharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103362573B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332042A (en) * | 2019-07-31 | 2019-10-15 | 湖南天雁机械有限责任公司 | A kind of turbine box structure reducing thermal stress |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0006311A1 (en) * | 1978-06-09 | 1980-01-09 | Holset Engineering Company Limited | Sealing assembly |
| US4384821A (en) * | 1981-10-14 | 1983-05-24 | Wallace Murray Corporation | Free floating divider wall turbine housing |
| CN101598038A (en) * | 2009-07-03 | 2009-12-09 | 寿光市康跃增压器有限公司 | Two-layer flow path variable area turbine of turbine supercharger |
| CN102235187A (en) * | 2010-05-04 | 2011-11-09 | 阿尔普拉兹公司 | Turbine housing for a supercharger |
| CN203452858U (en) * | 2013-07-25 | 2014-02-26 | 无锡康明斯涡轮增压技术有限公司 | Double-flow-channel turbocharger volute |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2539564B1 (en) * | 2010-02-26 | 2017-01-25 | International Engine Intellectual Property Company, LLC | Exhaust gas flow divider for turbocharger turbine housing |
-
2013
- 2013-07-25 CN CN201310317064.XA patent/CN103362573B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0006311A1 (en) * | 1978-06-09 | 1980-01-09 | Holset Engineering Company Limited | Sealing assembly |
| US4384821A (en) * | 1981-10-14 | 1983-05-24 | Wallace Murray Corporation | Free floating divider wall turbine housing |
| CN101598038A (en) * | 2009-07-03 | 2009-12-09 | 寿光市康跃增压器有限公司 | Two-layer flow path variable area turbine of turbine supercharger |
| CN102235187A (en) * | 2010-05-04 | 2011-11-09 | 阿尔普拉兹公司 | Turbine housing for a supercharger |
| CN203452858U (en) * | 2013-07-25 | 2014-02-26 | 无锡康明斯涡轮增压技术有限公司 | Double-flow-channel turbocharger volute |
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| Publication number | Publication date |
|---|---|
| CN103362573A (en) | 2013-10-23 |
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