CN206845471U - A kind of turbo-charger impeller - Google Patents
A kind of turbo-charger impeller Download PDFInfo
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- CN206845471U CN206845471U CN201720424332.1U CN201720424332U CN206845471U CN 206845471 U CN206845471 U CN 206845471U CN 201720424332 U CN201720424332 U CN 201720424332U CN 206845471 U CN206845471 U CN 206845471U
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- endoporus
- impeller
- compressor casing
- varied clearance
- turbo
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Abstract
The utility model discloses a kind of turbo-charger impeller, including the compressor casing provided with endoporus, impeller is rotatablely equipped with the endoporus of compressor casing, the endoporus of pressure casing and the edge of impeller form the Varied clearance of arcuate structure, Varied clearance is entrance point close to one end of compressor casing endoporus, the one end of Varied clearance away from compressor casing endoporus is the port of export, and Varied clearance is the gradual change gap that entrance point tapers into outlet splaying.The utility model has haveed the function that to widen range of flow, has reduced the reaction force for forcing impeller reduction of speed by the design of Varied clearance or diversion section leaf anterior diastema, reaching prevents the effect of surge, easy to process, cost is low, has reached the effect for widening turbocharger air compressor range of flow.
Description
Technical field
Field of internal combustion engine is the utility model is related to, specifically a kind of turbo-charger impeller.
Background technology
At present, turbocharger such as uses at the design of leaf anterior diastema substantially, as shown in Fig. 2 the endoporus and impeller of compressor casing
Edge leaf anterior diastema formed etc. gap, gases at high pressure waiting the flow of gap location small, the effect of turbocharger air compressor
Rate is relatively low, in order to widen range of flow also using groove structure is opened up, using groove structure compressor casing inlet design complexity is opened up, very
Need to add muffler structure when more, find that big leaf anterior diastema equally can be with by CFD emulation and compressor platform experiment
Play a part of widening range of flow, but excessive leaf anterior diastema can cause compressor efficiency to reduce a lot.
The content of the invention
Problem to be solved in the utility model is to overcome above-mentioned the deficiencies in the prior art, there is provided one kind widens compressor flow
Scope, easy to process, the low turbo-charger impeller of cost.
In order to solve the above problems, the utility model uses following technical scheme：
A kind of turbo-charger impeller, including the compressor casing provided with endoporus, it is rotatablely equipped with the endoporus of compressor casing
Impeller, the endoporus of pressure casing and the edge of impeller form the Varied clearance of arcuate structure, and Varied clearance is close to compressor casing endoporus
One end be entrance point, the one end of Varied clearance away from compressor casing endoporus is the port of export, and Varied clearance is entrance point between the port of export
The gradual change gap that gap tapers into.
It is further optimization of the utility model to such scheme below：
Into 0.6mm, outlet splaying is 0.3mm for splaying between the change.
Another technical solution：Using ensureing that compressor is efficient widens simultaneously between the endoporus and impeller of compressor casing
The increase diversion section leaf anterior diastema structure of range of flow.
Further optimization：The diversion section leaf anterior diastema is divided into diversion section and acting for carrying out water conservancy diversion to inlet air flow
Section, diversion section are constant for the endoporus and the structure of impeller inlet end leaf anterior diastema increase, acting Duan Weiye anterior diastemas of compressor casing
Structure.
Further optimization：The diversion section leaf anterior diastema is 0.6 ㎜, and acting section leaf anterior diastema is 0.3 ㎜.
The utility model has reached the work for widening range of flow by the design of Varied clearance or increase diversion section leaf anterior diastema
With reducing the reaction force for forcing impeller reduction of speed, reach the effect for preventing surge, easy to process, cost is low, has reached and has widened
The effect of turbocharger air compressor range of flow.
The utility model is described in further detail with reference to the accompanying drawings and examples.
Brief description of the drawings
Accompanying drawing 1 is the schematic diagram of the utility model embodiment turbocharger air compressor；
Accompanying drawing 2 is the structural representation of the medium leaf anterior diastema of background technology；
Accompanying drawing 3 is the structural representation of the utility model embodiment gradual change leaf anterior diastema；
Accompanying drawing 4 is the structural representation in the utility model embodiment diversion section amplification gap；
Accompanying drawing 5 such as is at the speed triangle contrast schematic diagram of gap and Varied clearance；
Accompanying drawing 6 is the Capability of Compressor comparison diagram that the utility model is implemented on certain model booster.
In figure：1- compressor casings；2- impellers；The gaps such as 3-；4- Varied clearances；5- opens up groove structure；Between the amplification of 6- diversion sections
Gap；A- Varied clearance airintake direction deflection angles；The gap flow angle of attack such as b-；The c- Varied clearance air-flow angles of attack；D- Varied clearances and between waiting
Gap air-flow axial direction speed increment.
Embodiment
Embodiment 1, as shown in Figure 1, Figure 3, a kind of turbo-charger impeller, including the compressor casing 1 provided with endoporus, calm the anger
Impeller 2 is rotatablely equipped with the endoporus of casing 1, the endoporus of pressure casing 1 and the edge of impeller 2 are formed between the change of arcuate structure
Gap 4, Varied clearance 4 are entrance point close to one end of the endoporus of compressor casing 1, and the one end of Varied clearance 4 away from the endoporus of compressor casing 1 is
Mouth end, Varied clearance 4 are the gradual change gap that entrance point tapers into outlet splaying.
The Varied clearance 4 is the method using the deflection center of circle using R segmental arcs, increases the internal diameter of the import of compressor casing 1, outlet
Locate the arcuate structure of size constancy, import splaying is 0.6mm, port of export 0.3mm.
Under a certain rotating speed, when gas flow is reduced to original structure surge, the air pressure of compressor impeller outlet is higher, and enters
Throughput is too small, the phenomenon that the gases at high pressure of impeller outlet can be caused to be backflowed toward impeller inlet, causes the generation of surge.Using institute
Following effect can be produced by stating Varied clearance 4：
First, the gases at high pressure to backflow can be discharged by the larger leaf anterior diastema of the entrance of impeller 2, without at impeller inlet
Runner reflux between blade, so as to reduce reaction force of the gases at high pressure of return to inlet vane so that reaction force is strong
Compeling the effect of impeller reduction of speed reduces, and reaches the effect for preventing surge；
2nd, it is also to enter impeller channel at vane inlet from the gas flow of the leaf anterior diastema reflux at impeller inlet
, so the charge flow rate at vane inlet can be increased from the gas flow of the leaf anterior diastema reflux at impeller inlet, in Fig. 5 institutes
Equivalent to air-flow axial velocity is added in the speed triangle shown, air-flow axial velocity corresponds to d；
3rd, returned from the high pressure draught that the leaf anterior diastema at impeller inlet returns along blade rotation direction helical form, meeting
Charge air flow is driven also to produce a velocity shifts angle along blade rotation direction, so that charge air flow will not be vertical
The inletpiston of impeller 2, but impeller is entered with certain angle of inclination, this angle of inclination is the Varied clearance air inlet side in Fig. 5
To deflection angle a.
As shown in figure 5, angle b for etc. the gap flow angle of attack, angle c be the Varied clearance air-flow angle of attack, gas back amount increasing
The high pressure draught for added the throughput at vane inlet, returning to can make in the presence of the return of blade rotation direction helical form
Compressor blade entrance speed triangle air inlet angle by etc. gap flow angle of attack b increase to the Varied clearance air-flow angle of attack
C, reach the obvious effect for preventing surge.
Influence of the Varied clearance 4 to surge line, as shown in fig. 6, by Varied clearance 4, on some rotating speed line, with stream
The reduction of amount, pressure ratio can first reduce and reduction by a small margin with flow, can slightly rise afterwards so that surge line moves to left necessarily
Distance, reach the effect for widening range of flow；
Under a certain rotating speed, when flow increases to original structure obstruction, deficiency of air at impeller inlet, using the change
Gap 4 can supplement air from larger leaf anterior diastema, so that choke line, which moves to right, reaches the effect for widening range of flow.
Embodiment 2, as shown in figure 4, a kind of turbo-charger impeller described in embodiment 1, the endoporus and leaf of compressor casing 1
Used between wheel 2 and ensure that compressor is efficient while widens the structure of diversion section leaf anterior diastema 6 of range of flow.
The structure of diversion section leaf anterior diastema 6 is for carrying out the diversion section of water conservancy diversion and acting section, water conservancy diversion to inlet air flow
Section is the endoporus and the structure of the entrance point leaf anterior diastema of impeller 2 increase of compressor casing 1, and do work the constant knot of Duan Weiye anterior diastemas
Structure.
The diversion section leaf anterior diastema is 0.6mm, and intersegmental gap of doing work is 0.3mm.
The utility model haveed the function that to widen range of flow by the design of Varied clearance or diversion section leaf anterior diastema,
The reaction force for forcing impeller reduction of speed is reduced, reaches the effect for preventing surge, easy to process, cost is low, has reached and has widened whirlpool
Take turns the effect of supercharger air compressor range of flow.
Claims (5)
1. a kind of turbo-charger impeller, including the compressor casing provided with endoporus（1）, compressor casing（1）Endoporus in rotate peace
Equipped with impeller（2）, it is characterised in that：Pressure casing（1）Endoporus and impeller（2）Edge formed arcuate structure Varied clearance
（4）, Varied clearance（4）Close to compressor casing（1）One end of endoporus is entrance point, Varied clearance（4）Away from compressor casing（1）Endoporus
One end is the port of export, Varied clearance（4）The gradual change gap tapered into for entrance point to outlet splaying.
A kind of 2. turbo-charger impeller according to claim 1, it is characterised in that：The Varied clearance（4）Between entrance point
Gap is 0.6mm, and outlet splaying is 0.3mm.
A kind of 3. turbo-charger impeller according to claim 1, it is characterised in that：Compressor casing（1）Endoporus and leaf
Wheel（2）Between using ensureing that compressor is efficient while widen the diversion section leaf anterior diastema of range of flow（6）Structure.
A kind of 4. turbo-charger impeller according to claim 3, it is characterised in that：The diversion section leaf anterior diastema（6）
It is divided into the diversion section and acting section for carrying out water conservancy diversion to inlet air flow, diversion section is compressor casing（1）Endoporus and impeller（2）
The structure of entrance point leaf anterior diastema increase, the constant structure of acting Duan Weiye anterior diastemas.
A kind of 5. turbo-charger impeller according to claim 4, it is characterised in that：The diversion section leaf anterior diastema is
0.6 mm, intersegmental gap of doing work are 0.3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720424332.1U CN206845471U (en) | 2017-04-21 | 2017-04-21 | A kind of turbo-charger impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720424332.1U CN206845471U (en) | 2017-04-21 | 2017-04-21 | A kind of turbo-charger impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206845471U true CN206845471U (en) | 2018-01-05 |
Family
ID=60793766
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720424332.1U Active CN206845471U (en) | 2017-04-21 | 2017-04-21 | A kind of turbo-charger impeller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529422A (en) * | 2018-05-25 | 2019-12-03 | 势加透博（北京）科技有限公司 | A kind of antisurge control system of compressor |
-
2017
- 2017-04-21 CN CN201720424332.1U patent/CN206845471U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529422A (en) * | 2018-05-25 | 2019-12-03 | 势加透博（北京）科技有限公司 | A kind of antisurge control system of compressor |
| CN110529422B (en) * | 2018-05-25 | 2024-04-09 | 势加透博（北京）科技有限公司 | Anti-surge control system of compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A turbocharger impeller Effective date of registration: 20220428 Granted publication date: 20180105 Pledgee: Societe Generale Bank Limited by Share Ltd. Weifang branch Pledgor: SHANDONG XINDE MAKE TURBOCHARGER CO.,LTD. Registration number: Y2022980004892 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |