CN203272233U - Integral backward-bending impeller of supercharger - Google Patents
Integral backward-bending impeller of supercharger Download PDFInfo
- Publication number
- CN203272233U CN203272233U CN 201220605286 CN201220605286U CN203272233U CN 203272233 U CN203272233 U CN 203272233U CN 201220605286 CN201220605286 CN 201220605286 CN 201220605286 U CN201220605286 U CN 201220605286U CN 203272233 U CN203272233 U CN 203272233U
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- CN
- China
- Prior art keywords
- impeller
- supercharger
- cambered surface
- improved
- cone base
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses an integral backward-bending impeller of a supercharger. The integral backward-bending impeller is characterized in that integral impellers spaced by long and short blades are uniformly distributed on an arc surface of a conical surface on a conical base with the arc surface, and the molded lines of the blades are molded-line curved surfaces which incline forwards and are bent backwards; and an axial hole is arranged at the center of the conical base. Compared with the common gas compressor of an impeller with radial straight blades, the integral backward-bending impeller disclosed by the utility model has the advantages that the expansion of the flow range at a high-efficiency area is obvious, the surge line is obviously transferred to a small-flow area, and the efficiency is also improved to some extent, so that the power performance of a supercharged engine is improved, the oil consumption is reduced, the efficiency and the overall efficiency of the gas compressor are improved, and the operating reliability of the supercharger is improved.
Description
Technical field
The utility model belongs to the rotor constituent element of power plant turbocharger for diesel engine, particularly a kind of supercharger integrated formula back ward impeller.
Background technique
Development plays an important role to engine product to develop high performance turbosupercharger.Improving the performance of centrifugal-flow compressor, is one of requisite research project of development high performance turbine pressurized machine.Because the controlled load design of impeller is most important, the quality of design distributes more even for starting load, the impeller internal flow is more stable, the Mach number of impeller outlet air-flow is lower, air current flow performance improvement in Diffuser, therefore have higher level of efficiency, broad high efficient area operating range has very big impact.
The model utility content
Technical problem to be solved in the utility model is: a kind of supercharger integrated formula back ward impeller is provided.Reach the distribution of startup load more even, the impeller internal flow is more stable, and the Mach number of impeller outlet air-flow is lower, and air current flow performance improvement in Diffuser has higher efficient.
The technical solution of the utility model is:
A kind of supercharger integrated formula back ward impeller is characterized in that: be evenly equipped with the integral wheel that is spaced apart deviated splitter vane on the conical surface cambered surface on the cone base of cambered surface, its vane type line is the molded line curved surface of palintrope of leaning forward; There is axis hole at the center.
The bottom surface diameter of the cone base of cambered surface is 260mm, the height of the cone base of cambered surface is 126mm, it is 50mm that there is shaft hole diameter at the center of the cone base of cambered surface, and the arc radius of the cone base outer arced surface conical surface of cambered surface is R80, and the blade outer rim arc radius of the molded line curved surface of the palintrope that leans forward is R62.
The utility model effect is:
This supercharger integrated formula back ward impeller has obvious expansion with the range of flow that the gas compressor of general straight radial blade impeller is compared its high efficient area, and surge line obviously shifts to the small flow district, and efficient also increases.The match parameter of motor can use the high efficient area of the gas compressor that the backward-bladed impeller that leans forward is housed preferably, thereby has improved the power performance of supercharged engine, reduces oil consumption.Improve compressor efficiency and overall efficiency, and improved the pressurized machine serviceability.
Gas compressor adopts the integral wheel of deviated splitter vane, and vane type line is designed to the palintrope that leans forward.Runner design has two schemes, and outer meridian plane is designed with two schemes.Carry out scheme optimization by platform test, chosen wherein a kind of combination.The contrast target is the ZN250-3 gas compressor.The improvement result is:
Calibration point performance: pressure ratio: 3.0 left and right corrected flows (Kilograms Per Second): 2.0-2.1 more former schemes of compressor efficiency improve more than 2%, and surge remaining on the rotating speed line is waited in rotating speed lift-off value＜1000 rev/min〉15%.
Intuitively compare with former Capability of Compressor curve, wait rotating speed line flatness, efficient sector width is no less than former gas compressor.
Description of drawings
Fig. 1 is the structural front view of supercharger integrated formula back ward impeller.
Fig. 2 is the structure partial plan view of supercharger integrated formula back ward impeller.
In figure: the cone base of 1 cambered surface, 2 axis holes, the 3 outer arced surface conical surfaces, 4 long lean forward backward-curved blades, the 5 short backward-curved blades that lean forward, 6 blade outer rims.
Embodiment
A kind of supercharger integrated formula back ward impeller as shown in the figure is evenly equipped with the integral wheel that is spaced apart deviated splitter vane on the conical surface cambered surface on the cone base 1 of cambered surface, its vane type line is the molded line curved surface of palintrope of leaning forward; There is axis hole 2 at the center.
The bottom surface diameter of the cone base of cambered surface is 260mm, the height of the cone base of cambered surface is 126mm, it is 50mm that there is shaft hole diameter at the center of the cone base of cambered surface, and the arc radius of the cone base outer arced surface conical surface 3 of cambered surface is R80, and the blade outer rim 6 arc radiuses of the molded line curved surface of the palintrope that leans forward are R62.
Claims (2)
1. supercharger integrated formula back ward impeller is characterized in that: be evenly equipped with the integral wheel that is spaced apart deviated splitter vane on the conical surface cambered surface on the cone base of cambered surface, its vane type line is the molded line curved surface of palintrope of leaning forward; There is axis hole at the center.
2. supercharger integrated formula back ward impeller according to claim 1, it is characterized in that: the bottom surface diameter of the cone base of cambered surface is 260mm, the height of the cone base of cambered surface is 126mm, it is 50mm that there is shaft hole diameter at the center of the cone base of cambered surface, the arc radius of the cone base outer arced surface conical surface of cambered surface is R80, and the blade outer rim arc radius of the molded line curved surface of the palintrope that leans forward is R62.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220605286 CN203272233U (en) | 2012-11-14 | 2012-11-14 | Integral backward-bending impeller of supercharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220605286 CN203272233U (en) | 2012-11-14 | 2012-11-14 | Integral backward-bending impeller of supercharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203272233U true CN203272233U (en) | 2013-11-06 |
Family
ID=49502658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220605286 Expired - Fee Related CN203272233U (en) | 2012-11-14 | 2012-11-14 | Integral backward-bending impeller of supercharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203272233U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807209A (en) * | 2014-02-13 | 2014-05-21 | 沈阳斯特机械制造有限公司 | Enclosed impeller of centrifugal compressor |
| CN104358709A (en) * | 2014-11-07 | 2015-02-18 | 无锡科博增压器有限公司 | Gas compressor impeller |
| CN105650026A (en) * | 2016-03-23 | 2016-06-08 | 上海钛灵特压缩机有限公司 | Teeth driving centrifugal compressor impeller |
-
2012
- 2012-11-14 CN CN 201220605286 patent/CN203272233U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807209A (en) * | 2014-02-13 | 2014-05-21 | 沈阳斯特机械制造有限公司 | Enclosed impeller of centrifugal compressor |
| CN104358709A (en) * | 2014-11-07 | 2015-02-18 | 无锡科博增压器有限公司 | Gas compressor impeller |
| CN105650026A (en) * | 2016-03-23 | 2016-06-08 | 上海钛灵特压缩机有限公司 | Teeth driving centrifugal compressor impeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20141114 |
|
| EXPY | Termination of patent right or utility model |