CN211819534U - Supercharger volute capable of improving performance of air compressor - Google Patents
Supercharger volute capable of improving performance of air compressor Download PDFInfo
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- CN211819534U CN211819534U CN202020216885.XU CN202020216885U CN211819534U CN 211819534 U CN211819534 U CN 211819534U CN 202020216885 U CN202020216885 U CN 202020216885U CN 211819534 U CN211819534 U CN 211819534U
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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 utility model discloses design into the arc that expands outward with the both ends of diffuser runner section, the width in curved design messenger diffuser exit increases, and then has increased diffuser exit area, has strengthened the diffusion ability, makes the compressor have higher pressure ratio.
Description
Technical Field
The utility model relates to an exhaust gas turbocharging technical field, especially a can improve booster spiral case of compressor performance.
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 utility model aims at overcoming the not enough of prior art, and provide a booster spiral case that can improve compressor performance. 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 utility model is that: 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 utility model discloses further technical scheme is: the bell mouth section is composed of a section of cambered surface.
The utility model discloses further technical scheme is: the bell mouth section is composed of a plurality of sections of arc surfaces which are tangent in sequence.
The utility model discloses still further technical scheme is: 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 utility model have following advantage:
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.
The utility model discloses design into the arc that expands outward (the bellmouth section 131 promptly) with the both ends of diffuser runner section 13, the width that curved design made diffuser (the diffuser runner section promptly) exit increases, and then has increased diffuser (the diffuser runner section promptly) exit area, has strengthened the diffusion ability, makes the compressor (the diffuser runner section promptly) have higher pressure ratio.
The utility model discloses the cyclone quantity at diffuser flow channel section 13 and 14 of spiral case flow channel section is obviously less than current booster spiral case in the cyclone quantity of same position, has guaranteed that the air current has more suitable angle and has got into spiral case flow channel section 14 to reduce the gas flow loss, improved the efficiency of booster.
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 |
|---|---|---|---|
| CN202020216885.XU CN211819534U (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 |
|---|---|---|---|
| CN202020216885.XU CN211819534U (en) | 2020-02-27 | 2020-02-27 | Supercharger volute capable of improving performance of air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211819534U true CN211819534U (en) | 2020-10-30 |
Family
ID=72999665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020216885.XU Active CN211819534U (en) | 2020-02-27 | 2020-02-27 | Supercharger volute capable of improving performance of air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211819534U (en) |
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2020
- 2020-02-27 CN CN202020216885.XU patent/CN211819534U/en active Active
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