CN111140295A - Supercharger volute capable of improving performance of air compressor - Google Patents
Supercharger volute capable of improving performance of air compressor Download PDFInfo
- Publication number
- CN111140295A CN111140295A CN202010122487.6A CN202010122487A CN111140295A CN 111140295 A CN111140295 A CN 111140295A CN 202010122487 A CN202010122487 A CN 202010122487A CN 111140295 A CN111140295 A CN 111140295A
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- CN
- China
- Prior art keywords
- volute
- section
- diffuser
- flow channel
- flow passage
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/40—Application in turbochargers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The supercharger volute capable of improving the performance of the compressor comprises a volute, wherein a gas flow channel is arranged in the volute and comprises a gas inlet flow channel section, a working wheel flow channel section, a diffuser flow channel section and a volute flow channel section which are sequentially communicated; the diffuser flow passage section is a tubular passage and is intersected with the volute flow passage section at two ends, and the intersection of the diffuser flow passage section and the volute flow passage section is expanded outwards to form a bell mouth section. The two ends of the diffuser flow passage section are designed into outward-expanding arcs, and the width of the outlet of the diffuser is increased due to the arc design, so that the area of the outlet of the diffuser is increased, the diffusion capacity is enhanced, and the compressor has higher pressure ratio.
Description
Technical Field
The invention relates to the technical field of exhaust gas turbocharging, in particular to a volute of a supercharger capable of improving the performance of a gas compressor.
Background
When the automobile engine runs at a low speed and a high load (such as climbing a steep slope), the compressor is required to provide more fresh air, and the energy required by the compressor comes from the turbine, so the turbine needs to be adjusted to a high-efficiency area.
The structure of the conventional supercharger volute is shown in fig. 4, and the conventional supercharger volute comprises a volute 1, wherein a gas flow channel is arranged in the volute 1, the gas flow channel comprises a gas inlet flow channel section 11, a working wheel flow channel section 12, a diffuser flow channel section 13 and a volute flow channel section 14 which are sequentially communicated, and the diffuser flow channel section 13 is a tubular channel with the same inner diameter. In the working state, the airflow passes through the air inlet flow passage section 11, the working wheel flow passage section 12, the diffuser flow passage section 13 and the volute flow passage section 14 in the volute 1 in sequence, the flow speed is gradually reduced, the pressure is gradually increased, and the kinetic energy of the airflow is gradually converted into pressure energy.
In the flow channel flow field of the existing supercharger volute, cyclone exists at the intersection of the diffuser flow channel section 13 and the volute flow channel section 14, so that certain gas flow loss exists, and the improvement of the gas flow pressure ratio of the diffuser flow channel section (namely a gas compressor) is not facilitated.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a supercharger volute capable of improving the performance of a compressor. The volute solves the problems that the existing volute of the supercharger has cyclone at the intersection of a diffuser flow passage section and a volute flow passage section, has certain gas flow loss and can reduce the air flow pressure ratio of the diffuser flow passage section (namely a gas compressor).
The technical scheme of the invention is as follows: the supercharger volute capable of improving the performance of the compressor comprises a volute, wherein a gas flow channel is arranged in the volute and comprises a gas inlet flow channel section, a working wheel flow channel section, a diffuser flow channel section and a volute flow channel section which are sequentially communicated; the diffuser flow passage section is a tubular passage and is intersected with the volute flow passage section at two ends, and the intersection of the diffuser flow passage section and the volute flow passage section is expanded outwards to form a bell mouth section.
The further technical scheme of the invention is as follows: the bell mouth section is composed of a section of cambered surface.
The further technical scheme of the invention is as follows: the bell mouth section is composed of a plurality of sections of arc surfaces which are tangent in sequence.
The invention further adopts the technical scheme that: the length of the bell-mouth section does not exceed 25% of the total length of the diffuser flow passage section.
Compared with the prior art, the invention has the following advantages:
1. the gas flow state at the joint of the diffuser flow channel section and the volute flow channel section is effectively improved, the gas flow loss is reduced, and the efficiency of the gas compressor is improved.
2. The area of the outlet of the diffuser is effectively increased, so that the pressure ratio and the efficiency of the supercharger are improved.
3. The processing technology is the same as that of the existing supercharger volute, and the processing mode is simple.
The invention is further described below with reference to the figures and examples.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a rear view of FIG. 1;
FIG. 3 is a cross-sectional view A-A of FIG. 1;
fig. 4 is a schematic diagram of a conventional volute structure of a supercharger.
Detailed Description
Example 1:
as shown in fig. 1-3, a supercharger volute capable of improving the performance of a compressor includes a volute 1, a gas flow channel is arranged in the volute 1, and the gas flow channel includes a gas inlet channel section 11, a runner wheel channel section 12, a diffuser channel section 13 and a volute channel section 14 which are sequentially communicated. The diffuser flow channel section 13 is a tubular channel, and is intersected with the volute flow channel section 14 at two ends, the intersection of the diffuser flow channel section 13 and the volute flow channel section 14 expands outwards to form a bell-mouth section 131, and the bell-mouth section 131 is composed of a section of arc surface or a plurality of sections of arc surfaces which are sequentially tangent.
Preferably, the length of the flared section does not exceed 25% of the total length of the diffuser flow path section.
According to the invention, two ends of the diffuser flow passage section 13 are designed into outward-expanding arcs (namely the bell mouth sections 131), the width of the outlet of the diffuser (namely the diffuser flow passage section) is increased by the aid of the arcs, so that the area of the outlet of the diffuser (namely the diffuser flow passage section) is increased, the diffusion capacity is enhanced, and the compressor (namely the diffuser flow passage section) has a higher pressure ratio.
The cyclone number of the diffuser flow passage section 13 and the volute flow passage section 14 is obviously less than that of the conventional supercharger volute at the same position, so that the airflow enters the volute flow passage section 14 at a more proper angle, the gas flow loss is reduced, and the efficiency of the supercharger is improved.
Claims (4)
1. The supercharger volute capable of improving the performance of the compressor comprises a volute, wherein a gas flow channel is arranged in the volute and comprises a gas inlet flow channel section, a working wheel flow channel section, a diffuser flow channel section and a volute flow channel section which are sequentially communicated; the diffuser flow passage section is a tubular passage and is intersected with the volute flow passage section at two ends; the method is characterized in that: the intersection of the diffuser flow passage section and the volute flow passage section is expanded to form a bell mouth section.
2. A supercharger volute for increasing compressor performance as claimed in claim 1 wherein: the bell mouth section is composed of a section of cambered surface.
3. A supercharger volute for increasing compressor performance as claimed in claim 1 wherein: the bell mouth section is composed of a plurality of sections of arc surfaces which are tangent in sequence.
4. A supercharger volute for increasing compressor performance according to any of claims 1 to 3, wherein: the length of the bell-mouth section does not exceed 25% of the total length of the diffuser flow passage section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010122487.6A CN111140295A (en) | 2020-02-27 | 2020-02-27 | Supercharger volute capable of improving performance of air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010122487.6A CN111140295A (en) | 2020-02-27 | 2020-02-27 | Supercharger volute capable of improving performance of air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111140295A true CN111140295A (en) | 2020-05-12 |
Family
ID=70528048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010122487.6A Pending CN111140295A (en) | 2020-02-27 | 2020-02-27 | Supercharger volute capable of improving performance of air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111140295A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776638A (en) * | 2022-05-30 | 2022-07-22 | 贵州汇天诚安全设施有限公司 | Low-noise cabinet type centrifugal fan |
-
2020
- 2020-02-27 CN CN202010122487.6A patent/CN111140295A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776638A (en) * | 2022-05-30 | 2022-07-22 | 贵州汇天诚安全设施有限公司 | Low-noise cabinet type centrifugal fan |
| CN114776638B (en) * | 2022-05-30 | 2024-06-07 | 贵州汇天诚安全设施有限公司 | Low-noise cabinet type centrifugal fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200512 |
|
| WD01 | Invention patent application deemed withdrawn after publication |