CN207454396U - A kind of circumfluence structure of vehicle turbocharger - Google Patents
A kind of circumfluence structure of vehicle turbocharger Download PDFInfo
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- CN207454396U CN207454396U CN201721378076.3U CN201721378076U CN207454396U CN 207454396 U CN207454396 U CN 207454396U CN 201721378076 U CN201721378076 U CN 201721378076U CN 207454396 U CN207454396 U CN 207454396U
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- end portion
- circumfluence
- circumferential groove
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- machine lock
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Abstract
The utility model describes a kind of circumfluence structure of vehicle turbocharger, and non-circumferential groove in its end portion is equipped at machine lock passage, several guide vanes are distributed in non-circumferential groove in its end portion；The guide vane is forward-curved blade, and casing exit flow is made to generate derotation, further improves the load of compressor inducer, preferably improves the purpose of surge margin.The utility model is removed the rotation of the air-flow in passage by these guide vanes, reduces air velocity, improves stream pressure, reduces the air-flow flow losses in casing, so as to which the load for improving compressor inducer achievees the purpose that improve surge margin.
Description
Technical field
The utility model is related to the technical fields of turbocharger more particularly to a kind of import of vehicle turbocharger to return
Flow structure, specifically a kind of circumfluence structure using guide vane.
Background technology
With pursuit of the people to advanced pressure ratio, high airload, high speed and low aspect ratio so that blade loading is more next
Bigger, this causes the stable operation range of compressor to reduce.In order to provide enough margin of operation, compressor may be away from most
High efficiency point works, and therefore, people make every effort to design a kind of structure to expand the steady operation nargin of compressor.Circumferential slot processor
The nargin that casket can obtain medium level under conditions of less reduction efficiency is improved.In addition it has simple in structure and is easy to add
The advantages of work, therefore, the scholar of many both domestic and external, carry out in-depth study to circumferential slot treated casing.
Compressor case treatment technology is a steady technology of passively expansion studied compared with morning with practical application, it is by compressing
The methods of slotting, cracking on machine casing wall surface to change the geometry of compressor case and physical dimension, and then changes compression
The dynamics of machine casing enables to change the flow behavior in compressor drum Ye Ding regions, improves the work of compressor
Condition improves the stall margin of compressor, prevents compressor from entering stall condition.Treated casing technology has simple in structure, easy
In realizing, manufacture that at low cost, remodeling is convenient, reliability is high, expands the advantages that steady effect is good, therefore although the steady machine of the expansion of treated casing
Reason scheduling theory problem not yet solves, and treated casing technology has but obtained more application in practice in industry.
Vehicle turbocharger agent structure generally comprises 3 parts, may refer to legend 1, i.e.,：Absorb high-temp waste gas energy
Turbine 300（Including turbine, volute and runner and subsidiary body）, compress the compressor 100 of fresh air（Including pinch roller,
Pressure shell runner and subsidiary body）, wherein compressor major function is to receive the rotating speed of turbine to complete the pressure to new charge
Contracting.Different flows corresponds to different outlet pressures under same rotational speed, and the smaller outlet pressure of flow rises, and causes going out for surge
It is existing, make compressor and engine cisco unity malfunction.The surge is that turbo-compressor (being also vane compressor) exists
Vibration under a kind of damage that flow is occurred when reducing to a certain extent.So surge margin is improved for engine
It is stable to have played important role.Therefore, it is badly in need of wanting a kind of new knot that can improve into the surge margin of compression now
Structure.
The content of the invention
The purpose of this utility model is to provide a kind of circumfluence structure of vehicle turbocharger, by circumfluence
Structure setting is improved, and adds guide vane, it is intended to be significantly improved wind blade load, be improved efficiency.
To achieve these goals, the technical solution of the utility model is：A kind of circumfluence of vehicle turbocharger
Structure, it mainly includes air inlet, and the air inlet is connected with machine lock passage, it is characterised in that：At the machine lock passage
Equipped with non-circumferential groove in its end portion, several guide vanes are distributed in non-circumferential groove in its end portion；The guide vane is forward-curved blade.
Preferably, the machine lock passage includes import and export end, and the non-circumferential groove in its end portion is arranged at the import of machine lock passage
End, the inner wall of non-circumferential groove in its end portion are sequentially distributed the guide vane of 4-7 pieces.
Further, non-circumferential groove in its end portion is to be close to the arc groove of machine lock vias inner walls, which sets has there are one flow deflector
Operation interval is imitated, flow deflector is arranged in the effective operation interval of the flow deflector, corresponding to the effective operation interval of the flow deflector
Central angle for 90 degree, the central angle angular range corresponding to the non-circumferential groove in its end portion is 120 degree.
Further, the angular range of the inlet angle of every guide vane is 10-20 degree, and the angular range of the angle of outlet is 60-
90 degree.
Further, turbocharger is equipped with wind blade, the circumferential lengths and wind guide vane of described every guide vane
The ratio of the impeller outlet diameter of piece is 15:1.
Compared with the prior art, the technical solution of the utility model further includes many except the improvement of overall technical architecture
Improvement in terms of details specifically, has the advantages that：
1st, improvement project described in the utility model sets non-circumferential direction into compression at machine lock passage, non-circumferential direction into
Increase on compression and several flow deflectors are set, removed the rotation of the air-flow in passage by these guide vanes, reduce air-flow
Speed improves stream pressure, the air-flow flow losses in casing is reduced, so as to which the load for improving compressor inducer reaches raising
The purpose of surge margin；
2nd, the flow deflector of the technical solution of the utility model uses the structure of antecurvature formula, generates casing exit flow anti-
Rotation further improves the load of compressor inducer, preferably improves the purpose of surge margin；
3rd, this patent reduces by the leakage of pressure face to suction surface, due to using non-circumferential annular groove so as to improve
The efficiency of complete machine；
4th, every flow deflector is set angle and it is square all drawn after severe test repeatedly, every guide vane
Inlet angle angular range for 10-20 degree, the angular range of the angle of outlet is 60-90 degree, and such angle setting can cause
Guide vane generates exit flow derotation, and further increases inducer blade loading, preferably plays the effect of treated casing.
Description of the drawings
Fig. 1 is the structure diagram of the turbocharger of the prior art.
Fig. 2 is the schematic diagram of circumfluence structure described in the utility model.
Fig. 3 is the dispersed structure schematic diagram of Fig. 2.
Fig. 4 is the structure diagram of the effective operation interval of flow deflector in non-circumferential groove in its end portion described in the utility model.
Fig. 5 is the structure diagram of non-circumferential groove in its end portion described in the utility model.
Fig. 6 is the another structure diagram of non-circumferential groove in its end portion described in the utility model.
Fig. 7 is the close-up schematic view in A portions in Fig. 5 described in the utility model.
Fig. 8 is the structure diagram of wind blade described in the utility model.
Reference numeral：
100 aerostatic presses, 300 turbines；
1 non-circumferential groove in its end portion, 2 guide vanes, 3 vortex tongues are circumferentially 0 degree of position, 4 machine lock passages, 5 air inlets, 6 wind guide vanes
Piece.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet
Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality
Novel protected scope.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally
Connection；It can be directly connected, can also be indirectly connected by intermediary, can be the connection inside two elements.For
For those of ordinary skill in the art, concrete meaning of the above-mentioned term in the utility model can be understood with concrete condition.
The utility model provides a kind of circumfluence structure of vehicle turbocharger, with reference in figure 2, the circumfluence
At the air inlet of turbocharger, air inlet is connected structure setting with machine lock passage, and non-week is equipped at the machine lock passage
To annular groove, several guide vanes are distributed in non-circumferential groove in its end portion；The guide vane is forward-curved blade.Furthermore,
The machine lock passage includes import and export end, and the non-circumferential groove in its end portion is arranged at the input end of machine lock passage, non-circumferential groove in its end portion
Inner wall is sequentially distributed the guide vane of 4-7 pieces.The rotation of the air-flow in passage is removed by these guide vanes, reduces gas
Flow velocity degree improves stream pressure, reduces the air-flow flow losses in casing, is carried so as to which the load for improving compressor inducer reaches
The purpose of high surge margin.
In one embodiment, referring to Fig. 4, Fig. 5, non-circumferential groove in its end portion is to be close to the arc groove of machine lock vias inner walls, the arc
Shape slot is set there are one the effective operation interval of flow deflector, and flow deflector is arranged in the effective operation interval of the flow deflector, the water conservancy diversion
Central angle corresponding to the effective operation interval of piece is 90 degree, and the central angle angular range corresponding to the non-circumferential groove in its end portion is
120 degree, described here 120 degree are the sum of angle of a1+a2, referring specifically to Fig. 5.
Explanation is needed further exist for, the initiating terminal of the central angle corresponding to the effective operation interval of the flow deflector is whirlpool
Tongue is circumferentially 0 degree of position, and using the initiating terminal as dot, positive and negative 45 degree of section（That is 90 degree of central angle）As flow deflector
Effective operation interval；
Similarly, the initiating terminal of the central angle corresponding to the non-circumferential groove in its end portion is also the position that vortex tongue is circumferentially 0 degree；And
Using the initiating terminal as dot, positive and negative 60 degree of section（That is 120 degree of central angle）Circumferential angle as non-circumferential groove in its end portion.Turbine
Be equipped with vortex tongue in booster, the vortex tongue axially for 0 degree of initiating terminal refer to vortex tongue and the immediate point in the center of circle and the center of circle it
Between line, vortex tongue here is circumferentially the prior art for 0 degree of position, just repeats no more it here in turbocharger
Specific location.
In one embodiment, the inner wall of non-circumferential groove in its end portion is sequentially distributed the guide vane of 5.Referring in Fig. 7, Fig. 8,
The angular range of the inlet angle b1 of every guide vane is 10-20 degree, and the angular range of angle of outlet b2 is 60-90 degree, it is preferred that
The angle of inlet angle is 15 degree, and the angle of the angle of outlet is 80 degree.Meanwhile turbocharger is equipped with wind blade, the wind-guiding
Blade is equipped with impeller, and the ratio of the circumferential lengths L of described every guide vane and the impeller outlet diameter d of wind blade are
15:1.Such angle setting can cause guide vane to generate exit flow derotation, and further increase wind-guiding impeller blade load
Lotus preferably plays the effect of treated casing.Meanwhile non-circumferential annular groove is set, and reduces letting out by pressure face to suction surface
Dew, so as to improve the efficiency of complete machine.
Specific embodiment of the utility model is described in detail above, but it is intended only as example, and this practicality is new
Type is not restricted to particular embodiments described above.To those skilled in the art, it is any that the utility model is carried out
Equivalent modifications and substitute also all among the scope of the utility model.Therefore, the spirit and model of the utility model are not being departed from
Lower made impartial conversion and modification are enclosed, should all be covered in the scope of the utility model.
Claims (5)
1. a kind of circumfluence structure of vehicle turbocharger, it mainly includes air inlet, and the air inlet leads to machine lock
Road is connected, it is characterised in that：Non- circumferential groove in its end portion is equipped at the machine lock passage, several water conservancy diversion leaves are distributed in non-circumferential groove in its end portion
Piece；
The guide vane is forward-curved blade.
2. a kind of circumfluence structure of vehicle turbocharger according to claim 1, it is characterised in that：The machine lock
Passage includes import and export end, and the non-circumferential groove in its end portion is arranged at the input end of machine lock passage, and the inner wall of non-circumferential groove in its end portion is successively
The guide vane of 4-7 pieces is distributed with.
3. a kind of circumfluence structure of vehicle turbocharger according to claim 1, it is characterised in that：Non- circumferential direction ring
Slot is the arc groove for being close to machine lock vias inner walls, which sets there are one the effective operation interval of flow deflector, and flow deflector is arranged at
In the effective operation interval of the flow deflector, the central angle corresponding to the effective operation interval of the flow deflector is 90 degree, and described is non-
Central angle angular range corresponding to circumferential groove in its end portion is 120 degree.
4. a kind of circumfluence structure of vehicle turbocharger according to claim 1, it is characterised in that：Every water conservancy diversion
The angular range of the inlet angle of blade is 10-20 degree, and the angular range of the angle of outlet is 60-90 degree.
5. a kind of circumfluence structure of vehicle turbocharger according to claim 1, it is characterised in that：Turbocharging
Device is equipped with wind blade, and the wind blade is equipped with impeller, the circumferential lengths and wind blade of the guide vane described in every
Impeller outlet diameter ratio be 15:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721378076.3U CN207454396U (en) | 2017-10-24 | 2017-10-24 | A kind of circumfluence structure of vehicle turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721378076.3U CN207454396U (en) | 2017-10-24 | 2017-10-24 | A kind of circumfluence structure of vehicle turbocharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207454396U true CN207454396U (en) | 2018-06-05 |
Family
ID=62281349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721378076.3U Active CN207454396U (en) | 2017-10-24 | 2017-10-24 | A kind of circumfluence structure of vehicle turbocharger |
Country Status (1)
| Country | Link |
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| CN (1) | CN207454396U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109530352A (en) * | 2018-11-14 | 2019-03-29 | 东北石油大学 | The rotary paraffin removal unit and its dewaxing method used in a kind of wax-containing oil pipe |
| CN112268016A (en) * | 2020-09-28 | 2021-01-26 | 中国北方发动机研究所(天津) | End wall pre-rotation guide vane structure |
-
2017
- 2017-10-24 CN CN201721378076.3U patent/CN207454396U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109530352A (en) * | 2018-11-14 | 2019-03-29 | 东北石油大学 | The rotary paraffin removal unit and its dewaxing method used in a kind of wax-containing oil pipe |
| CN109530352B (en) * | 2018-11-14 | 2021-05-25 | 东北石油大学 | Rotary paraffin removal device used in wax-containing crude oil pipeline and paraffin removal method thereof |
| CN112268016A (en) * | 2020-09-28 | 2021-01-26 | 中国北方发动机研究所(天津) | End wall pre-rotation guide vane structure |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201102 Address after: 215506 No. 1150, Southeast Avenue, Dongnan street, Changshu, Suzhou, Jiangsu Province Patentee after: Eason Technology (Jiangsu) Co., Ltd Address before: 201703 Shanghai city Qingpu District No. 518 Songhui Road Building 1 layer 1 Patentee before: ISEM TECHNOLOGIES (SHANGHAI) Co. |