CN203685678U - Efficient centrifugal air injection impeller - Google Patents
Efficient centrifugal air injection impeller Download PDFInfo
- Publication number
- CN203685678U CN203685678U CN201420039137.3U CN201420039137U CN203685678U CN 203685678 U CN203685678 U CN 203685678U CN 201420039137 U CN201420039137 U CN 201420039137U CN 203685678 U CN203685678 U CN 203685678U
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- Prior art keywords
- blade
- impeller
- centrifugal type
- efficient compression
- type efficient
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- 238000002347 injection Methods 0.000 title abstract 3
- 239000007924 injection Substances 0.000 title abstract 3
- 230000006835 compression Effects 0.000 claims description 15
- 238000007906 compression Methods 0.000 claims description 15
- 230000008676 import Effects 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 3
- 239000000446 fuel Substances 0.000 abstract description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 2
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 239000001569 carbon dioxide Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
An efficient centrifugal air injection impeller comprises long blades and short blades. The number of the sets of the long blades and the short blades is six, the impeller diameter phi 1 of an impeller outlet is 70-120 mm, and the width d of the impeller outlet is 0.06-0.08 phi1. The highest efficiency of a single efficient centrifugal air injection impeller reaches 93%, the highest efficiency of an air compressor reaches 84.5%, the fuel consumption rate of an engine can be reduced by 1%-2%, and the emissions of carbon dioxide can be reduced by 2%-4%.
Description
Technical field
The utility model relates to a kind of compression impellor of high-efficiency turbine pressurized machine, particularly a kind of compression impellor of turbosupercharger of the 200-330kw diesel engine that is applicable to state's IV emission standard.
Background technique
Turbocharging technology is the Main Means that improves engine power performance, there is the history of more than 100 year, it is pressed into cylinder to improve the air density that enters cylinder by turbosupercharger by high-pressure air, increase the charge of fresh air in cylinder, improve injected fuel amount, engine output is increased, thereby improve the power character of motor.
Along with the execution of state's IV emission standard, in order to meet the developing direction of strict emission request, need further to improve power of IC engine, reduce oil consumption, the efficiency that improves turbosupercharger is to realize the important means of above-mentioned purpose.
Model utility content
In order to improve the efficiency of turbosupercharger, the purpose of this utility model is to provide a kind of high-efficiency turbine pressurized machine compression impellor, by the optimal design of compression impellor to reach the object that improves turbosupercharger whole efficiency.
To achieve these goals, the utility model has adopted following technological scheme:
A kind of centrifugal type efficient compression impellor, its blade comprises linear leaf and short blade, and described linear leaf and short blade are set to six groups, make impeller inlet place blade few, reduce frictional loss, improve blade obstruction, and outlet port blade is many, obtains larger acting ability; Impeller outlet wheel footpath φ
1be 70～120mm, impeller outlet width d is 0.06～0.08 φ
1.To reach the matched well of high efficiency region and motor.
Preferably, the leaf top top rake α of described blade
1be 55～65 °, blade root top rake α
2it is 22～28 °.Ensure that the air-flow high incidence of 3 ° of impeller inlets is to reach efficiency optimization.
Preferably, impeller inlet diameter phi
2be 0.55～0.75 φ
1.This value is larger, can reduce the impact of coriolis force, closer to axial-flow compressor, improves compressor efficiency.
Preferably, bent angle β behind impeller outlet place leaf top
1be 0～45 °, bent angle β after blade root
2it is 0～35 °.Under the prerequisite of guarantee acting ability and intensity, obtain the highest efficiency and range of flow.
Preferably, taking blade import as benchmark, leaf ejects a mouthful position angle γ
1be 40～55 °, blade root exit position angle γ
2it is 40～60 °.Reach optimum blade degree of overlapping, reduce import divergence loss, reduce mixing loss at the exit.
Preferably, linear leaf and short blade thickness are shaped to streamlined, reduce flow losses, raise the efficiency.
Preferably, the independent moulding of short blade, reduces thickness, reduces gas shock loss, raises the efficiency.
Useful technique effect of the present utility model is:
Owing to having adopted technique scheme, compression impellor single-wheel peak efficiency of the present utility model reaches 93%, and gas compressor peak efficiency reaches 84.5%, can make engine fuel consumption rate decline 1-2 percentage point, and CO2 emissions reduces 2-4 percentage point.
Brief description of the drawings
Fig. 1 is impeller plan view schematic diagram;
Fig. 2 is impeller right elevation;
Fig. 3 is linear leaf sectional view;
Fig. 4 is short blade sectional view.
Reference character
1. linear leaf; 2. short blade
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further details.
As shown in Figures 1 to 4, a kind of centrifugal type efficient compression impellor that is applicable to 200-330kw diesel engine turbosupercharger, its blade comprises linear leaf 1 and short blade 2, linear leaf 1 and short blade 2 quantity are set to six groups, make impeller inlet place blade few, reduce frictional loss, improve blade obstruction, outlet port blade is many, obtains larger acting ability; According to 200-330kw motor flow characteristics, preferred impeller outlet wheel footpath φ
1be 70～120mm, impeller outlet width d is 0.06～0.08 φ
1, to reach the matched well of high efficiency region and motor.
As depicted in figs. 1 and 2, the leaf top top rake α of described blade
1be 55～65 °, blade root top rake α
2be 22～28 °, ensure that the air-flow high incidence of 3 ° of impeller inlets is to reach efficiency optimization.Impeller inlet diameter phi
2be 0.55～0.75 φ
1, this value is larger, can reduce the impact of coriolis force, closer to axial-flow compressor, improves compressor efficiency.
As shown in Figure 1, impeller outlet place leaf pushes up 3 rear bent angle β
1be 0～45 °, the rear bent angle β of blade root 4
2be 0～35 °, under the prerequisite that ensures acting ability and intensity, obtain the highest efficiency and range of flow.Taking blade import as benchmark, it is γ that leaf pushes up 3 angles, exit position
1be 40～55 °, blade root 4 angles, exit position are γ
2be 40～60 °, reach optimum blade degree of overlapping, reduce import divergence loss, reduce mixing loss at the exit.
As shown in Figure 3 and Figure 4, linear leaf 1 and short blade 2 thickness are shaped to streamlined, can reduce flow losses, raise the efficiency.The independent moulding of short blade 2, reduces thickness, reduces gas shock loss, raises the efficiency.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (7)
1. a centrifugal type efficient compression impellor, its blade comprises linear leaf (1) and short blade (2), it is characterized in that: described linear leaf (1) and short blade (2) are set to six groups, impeller outlet wheel footpath φ
1be 70～120mm, impeller outlet width d is 0.06～0.08 φ
1.
2. centrifugal type efficient compression impellor according to claim 1, is characterized in that: the leaf top top rake α of described blade
1be 55～65 °, blade root top rake α
2it is 22～28 °.
3. centrifugal type efficient compression impellor according to claim 1, is characterized in that: impeller inlet diameter phi
2be 0.55～0.75 φ
1.
4. centrifugal type efficient compression impellor according to claim 1, is characterized in that: bent angle β behind impeller outlet place leaf top
1be 0～45 °, bent angle β after blade root
2it is 0～35 °.
5. centrifugal type efficient compression impellor according to claim 1, is characterized in that: taking blade import as benchmark, leaf ejects a mouthful position angle γ
1be 40～55 °, blade root exit position angle γ
2it is 40～60 °.
6. centrifugal type efficient compression impellor according to claim 1, is characterized in that: the thickness of described linear leaf (1) and short blade (2) is shaped to streamlined.
7. centrifugal type efficient compression impellor according to claim 1, is characterized in that: described short blade (2) adopts independent moulding, reduces thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420039137.3U CN203685678U (en) | 2014-01-22 | 2014-01-22 | Efficient centrifugal air injection impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420039137.3U CN203685678U (en) | 2014-01-22 | 2014-01-22 | Efficient centrifugal air injection impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203685678U true CN203685678U (en) | 2014-07-02 |
Family
ID=51007586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420039137.3U Expired - Lifetime CN203685678U (en) | 2014-01-22 | 2014-01-22 | Efficient centrifugal air injection impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203685678U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611346A (en) * | 2018-11-30 | 2019-04-12 | 中国航发湖南动力机械研究所 | Centrifugal compressor and its design method |
-
2014
- 2014-01-22 CN CN201420039137.3U patent/CN203685678U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611346A (en) * | 2018-11-30 | 2019-04-12 | 中国航发湖南动力机械研究所 | Centrifugal compressor and its design method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |