CN208294573U - A kind of nozzle vane structure that the inclination of variable-nozzle assembly is tapered - Google Patents
A kind of nozzle vane structure that the inclination of variable-nozzle assembly is tapered Download PDFInfo
- Publication number
- CN208294573U CN208294573U CN201820782258.5U CN201820782258U CN208294573U CN 208294573 U CN208294573 U CN 208294573U CN 201820782258 U CN201820782258 U CN 201820782258U CN 208294573 U CN208294573 U CN 208294573U
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- China
- Prior art keywords
- nozzle
- ring
- aperture
- variable
- nozzle vane
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- Control Of Turbines (AREA)
Abstract
The utility model discloses one kind to be related to field of turbochargers, including positioning pin, cover board, aperture ring and nozzle ring, nozzle ring is circular ring shape, and circumferentially uniform array is located at the one side of nozzle ring to several nozzle vanes, and the opening portion between contiguous nozzle vanes is air inlet duct；Aperture ring is annular, and diameter dimension is slightly larger than nozzle ring, and aperture ring has several aperture slots in circumferentially design, and quantity is equal with nozzle vane quantity, and aperture ring is located on the outside of nozzle ring, controls nozzle opening size；Nozzle vane is non-contour design from the inlet to the outlet, fades to H2, and H1 > H2 by H1.A kind of tapered nozzle vane structure of the inclination of variable-nozzle assembly provided by the utility model, when gas flows in air inlet duct, since space is tapered, flow velocity and pressure can be gradually increased, so aeroperformance and pneumatic efficiency can be enhanced.
Description
Technical field
The utility model relates to the nozzles that the inclination of field of turbochargers more particularly to a kind of variable-nozzle assembly is tapered
Blade construction.
Background technique
Turbocharger is the device being used in combination with internal combustion engine, for being transported to engine charge by compression
Mouthful air mix with fuel and burning increases the power output of engine within the engine.Turbocharger includes peace
Mounted in compressor impeller in compressor housing and the turbine being mounted in turbine cylinder.Wherein, turbine cylinder and compressor
Shell is separately formed, and is connected between turbine cylinder and compressor housing there are also another middle casing, and axis is used for
The installation held and cooling and lubricating.Turbine cylinder limits the general toroidal runner for surrounding turbine, and exhaust enters stream from engine
Road simultaneously blows to turbine, and drives turbine rotation, and turbine drives coaxially connected compressor to rotate.Air passes through compressor impeller
It is compressed, is then connected to from housing outlets to engine intake.
It come one of booster aspect of performance challenge is being entire work model in engine using turbocharger
Enclose the interior engine power output for realizing desired size.It has been found that utilizing the turbocharger of fixed nozzle size usually not
It is easy to reach the purpose；By adjusting the inlet air flow of the turbine of turbocharger, improving control from turbocharger to correlation
Well known operational advantages are provided in terms of the ability of the supercharging amount of internal combustion engine conveying.By in the spray led in turbine wheel
Variable geometry is combined in mouth, realizes the adjusting to backblast turbine.By changing the size in Flow in Nozzle region,
The adjustable flow into turbine wheel, to adjust the total boost as provided by the compressor of turbocharger.
The nozzle of geometry-variable for turbocharger is generally divided into two main Types: variable-vane spray at present
Mouth and sliding plunger nozzle.Blade is typically included in turbine nozzle, for guiding exhaust into turbine along advantageous direction.
For variable-vane nozzle, row's circumferentially spaced bucket extends axially through nozzle, and can be driven with driven device
It rotates synchronously.Exhaust from volute flow passage flows through the access between blade radially inward, and blade can change
The direction of air-flow flowing, to be flowed into turbine wheel along desired direction guidance exhaust gas.In most of variable-vane nozzles,
Blade, which can enclose, to be rotated about the axis thereof, to change angle set by blade, to change the flow region of access between blade.It is variable
Blade cut-out governing is more flexible, but complicated structure limits the use scope of variable-vane nozzle, due to movement zero
Part is more, easily occurs the risk of clamping stagnation failure at high temperature, so the use temperature range of variable-vane nozzle is restricted；
Simultaneously as structure is complicated for variable-vane nozzle, cost is relatively high, equally also limits its application range.
In the nozzle of sliding-piston type, nozzle also may include blade, but blade is fixed on suitable position.It is logical
The piston that slides axially slided in the intracorporal hole of turbine case is crossed, the change in Flow in Nozzle region is realized.Piston is tubulose
, and it is located just at the inner radial of nozzle.The axial movement of piston effectively changes the axis of the introducing turbine wheel of nozzle
To degree, to change " throat region " in turbine wheel inlet.When blade includes in nozzle, piston can be neighbouring
It slides at the inner radial edge (that is, rear) of blade；Alternately, piston and blade can be radially overlapped, and piston can
Including notch, for accommodating at least part of blade when piston slides axially to adjust nozzle.It lives for this sliding
Plunger type nozzle, is not widely used, mainly since its control structure is difficult to be arranged, since its piston is needed in axial direction
Sliding, so control mechanism is also required to be axial control, since volute side is connected with middle case, side and vent gas treatment pipe
Road is connected, so control mechanism is difficult to be disposed in axial direction.
The variable-nozzle of variable-vane type and sliding-piston type, the two all have merits and demerits.For example, having rotatable
The variable-vane nozzle of blade usually has good aerodynamic quality, but since there are many quantity of movable members, so
It is mechanically very complicated.Sliding-piston type variable nozzle is mechanically much simpler, has seldom movable members, but usually in sky
It is good not as good as variable-vane nozzle on aerodynamic force.
Our company has been filed on patent application, and (Patent No. 201810373619.5, patent name is " for turbocharger
Variable-nozzle and its control method and turbocharger "), with feasible design structure, gathers blade type nozzle and sliding is lived
The advantages of plunger type nozzle, structure is simple, and production cost is low, and control is easy to accomplish, while aeroperformance is excellent.In order to further mention
High aeroperformance and efficiency, those skilled in the art are tapered for the inclination that the patented product develops a kind of variable-nozzle assembly
Nozzle vane structure.
Utility model content
In view of the above drawbacks of the prior art, technical problem to be solved in the utility model is further improves pneumatically
Performance improves pneumatic efficiency.
To achieve the above object, the utility model provides a kind of tapered nozzle vane knot of inclination of variable-nozzle assembly
Structure, including positioning pin, cover board, aperture ring and nozzle ring, nozzle ring is at basic cirque structure, several nozzle vanes are at week
It is located on the one side of nozzle ring to uniform array, opening portion, that is, air inlet duct between contiguous nozzle vanes is useless for guiding
Air-blowing is to turbine；Aperture ring is ring structure, and diameter dimension is slightly larger than nozzle ring, and aperture ring has several open slots in circumferentially design
I.e. aperture slot, quantity are consistent with nozzle vane quantity；Aperture ring is located on the outside of nozzle ring, controls nozzle opening size；Cover board position
Between nozzle ring and volute, protection sealing on the one hand is provided for nozzle ring, on the other hand provides mounting hole for positioning pin；Nozzle
Blade is non-contour design from the inlet to the outlet, fades to H2 by H1, H1 is nozzle vane entrance height, and H2 goes out for nozzle vane
Open height, and H1 > H2.
Further, nozzle vane is a part of nozzle ring, and the two is an entirety, and the angle of nozzle vane is fixed not
It is adjustable.
Further, nozzle vane angle design is the incident angle for being approximately equal to efficiency optimization.
It further, will be there are gap, to prevent high temperature from aperture ring and nozzle ring being caused to produce between aperture ring and nozzle ring
Raw clamping stagnation.
Further, 0.2~1mm of interstice coverage between aperture ring and nozzle ring.
Further, the air inlet duct between the circumferential width and nozzle vane of aperture slot is roughly equal, the height of open slot
It is roughly equal with the height of nozzle vane, when the aperture slot on aperture ring and the air inlet duct overlapping area between nozzle vane are maximum
When, nozzle assembly aperture is maximum, and when aperture slot and air inlet duct overlapping area minimum, nozzle assembly aperture is minimum, on aperture ring
Aperture slot and nozzle vane between the area that is overlapped of air inlet duct determine the opening size of nozzle assembly, on aperture ring
The area that air inlet duct between aperture slot and nozzle vane is overlapped is maximum, minimum needs to be arranged according to engine actual demand.
Further, aperture annulate shaft has fork slot and shift fork to side design, and shift fork stirs the movement of aperture ring in the position,
Adjust opening size.
Further, shift fork stirs fork slot, driving aperture ring rotation in rotary manner.
Further, there are many modes of shift fork, it can be electric actuator driving, be also possible to pneumatic actuator
Driving.
Further, cover board and the face that nozzle vane cooperates are designed as the identical conical surface of shape, to guarantee two conical surfaces
It can fit to together.
Further, cover board is assembled together with nozzle vane by revocable connection type.
Further, the connection type of cover board and nozzle vane be bolted or rivet press fitting.
Further, the height design of H2 will guarantee the requirement for meeting product maximum exhaust flow, and the height of H1 is set
Meter will guarantee the installation feasibility in volute flow passage, avoid interfering with volute.
A kind of tapered nozzle vane structure of the inclination of variable-nozzle assembly provided by the utility model, the space of air inlet duct
It being gradually reduced from the inlet to the outlet, when gas flows in air inlet duct, since space is tapered, flow velocity and pressure can be gradually increased,
So aeroperformance and pneumatic efficiency can be enhanced；Amount of parts is few simultaneously, and structure is simple, and cost of parts and assembly cost are big
Width reduces.
Make furtherly below with reference to technical effect of the attached drawing to the design of the utility model, specific structure and generation
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
Detailed description of the invention
Fig. 1 is the variable-nozzle assembly explosive view of a preferred embodiment of the utility model；
Fig. 2 is the variable-nozzle assembly installation sectional view of a preferred embodiment of the utility model；
Fig. 3 is the cover board and nozzle vane cone match schematic diagram of a preferred embodiment of the utility model；
Fig. 4 is the nozzle vane gradient schematic diagram of a preferred embodiment of the utility model；
Fig. 5 is the cover board gradient schematic diagram of a preferred embodiment of the utility model；
Fig. 6 is the aperture ring schematic diagram of a preferred embodiment of the utility model.
Specific embodiment
Multiple preferred embodiments that the utility model is introduced below with reference to Figure of description, keep its technology contents clearer
Be easy to understand.The utility model can be emerged from by many various forms of embodiments, the protection of the utility model
Range is not limited only to the embodiment mentioned in text.
In the accompanying drawings, the identical component of structure is indicated with same numbers label, everywhere the similar component of structure or function with
Like numeral label indicates.The size and thickness of each component shown in the drawings are to be arbitrarily shown, and the utility model is not
Limit the size and thickness of each component.Apparent in order to make to illustrate, some places suitably exaggerate the thickness of component in attached drawing.
As depicted in figs. 1 and 2, the tapered nozzle vane structure of the inclination of a kind of variable-nozzle assembly of the present embodiment design
Including positioning pin 1, cover board 2, aperture ring 4 and nozzle ring 3.As shown in figure 3, nozzle ring 3 is at basic cirque structure, several
Circumferentially uniform array is located on the one side of nozzle ring 3 nozzle vane 31, and nozzle vane 31 is one of nozzle ring 3
Point, the two is an entirety, i.e. the angle of nozzle vane 31 be it is fixed nonadjustable, 31 angle of nozzle vane is designed to imitate
The optimal incident angle of rate, opening portion, that is, air inlet duct 32 between adjacent blades is for guiding exhaust gas to blow to turbine.Such as Fig. 5 institute
Show, nozzle vane 31 fades to H2 from the inlet to the outlet to be non-contour, by H1, and H1 is nozzle vane entrance height, and H2 is nozzle
Blade exit height, and H1 > H2, H2 guarantee the requirement for meeting product maximum exhaust flow, H1 guarantees the peace in volute flow passage
Dress avoids interfering with volute.
As shown in fig. 6, aperture ring 4 is ring structure, diameter dimension is slightly larger than nozzle ring 3, aperture ring 4 and nozzle ring 3 it
Between will there are gap, prevent high temperature from aperture ring 4 and nozzle ring 3 being caused to generate clamping stagnation.Aperture ring 4 is with 3 gap of nozzle ring
0.2mm, aperture ring 4 have several open slots i.e. aperture slot 41,41 quantity of aperture slot and 31 quantity one of nozzle vane in circumferentially design
It causes, the circumferential width of aperture slot 41 is equal with the air inlet duct between nozzle vane 31, the height and nozzle vane 31 of aperture slot 41
Height it is equal.When the 32 overlapping area maximum of air inlet duct between the aperture slot on aperture ring 4 and nozzle vane 31, nozzle sets
Part aperture is maximum, and when aperture slot 41 and 32 overlapping area minimum of air inlet duct, nozzle assembly aperture is minimum, opening on aperture ring 4
The area that air inlet duct 32 between degree slot 41 and nozzle vane 31 is overlapped determines the opening size of nozzle assembly.
As shown in fig. 6, the axial side design of aperture ring 4 has fork slot 42, shift fork 42 is dialled in rotary manner in the position
Dynamic aperture ring 4 moves, i.e. adjustment opening size；There are many modes of shift fork 42, and the present embodiment is driven using electric actuator
It is dynamic.
As shown in figure 3, cover board 2 and face that nozzle vane 31 cooperates are the identical conical surface of shape, two conical surfaces can be bonded
To together, 2 one side of cover board is that nozzle ring 3 provides protection sealing, on the other hand provides mounting hole for positioning pin 1.Cover board 2 and spray
The connection type of mouth blade 31 is to be bolted, and is assembled together by positioning pin 1.
The preferred embodiments of the present invention have been described in detail above.It should be appreciated that this field ordinary skill without
It needs creative work according to the present utility model can conceive and makes many modifications and variations.Therefore, it is all in the art
Technical staff passes through logical analysis, reasoning, or a limited experiment according to the design of the utility model on the basis of existing technology can
It, all should be within the scope of protection determined by the claims with obtained technical solution.
Claims (10)
1. a kind of tapered nozzle vane structure of the inclination of variable-nozzle assembly, which is characterized in that including positioning pin, cover board, open
Ring and nozzle ring are spent, the nozzle ring is circular ring shape, and circumferentially uniform array is located at the nozzle ring to several nozzle vanes
One side, the opening portion between the adjacent nozzle vane are air inlet duct；The aperture ring is annular, and diameter dimension is slightly larger than
The nozzle ring, the aperture ring have several aperture slots in circumferentially design, and quantity is equal with the nozzle vane quantity, described to open
It spends ring to be located on the outside of the nozzle ring, controls nozzle opening size；The nozzle vane is non-contour design from the inlet to the outlet,
H2, and H1 > H2 are faded to by H1.
2. the tapered nozzle vane structure of the inclination of variable-nozzle assembly as described in claim 1, which is characterized in that the spray
Mouth blade be an entirety with the mouth ring, the angle fixation of the nozzle vane cannot be adjusted.
3. the tapered nozzle vane structure of the inclination of variable-nozzle assembly as described in claim 1, which is characterized in that the spray
Mouth blade angle is approximately equal to the incident angle of efficiency optimization.
4. the tapered nozzle vane structure of the inclination of variable-nozzle assembly as described in claim 1, which is characterized in that described to open
Spending between ring and the nozzle ring will there are gap, the 0.2~1mm of interstice coverage.
5. the tapered nozzle vane structure of the inclination of the variable-nozzle assembly as described in claim 1-4 is any, which is characterized in that
Air inlet duct between the circumferential width and the nozzle vane of the aperture slot is roughly equal, the height of the aperture slot with it is described
The height of nozzle vane is roughly equal, and when the aperture slot and the air inlet duct overlapping area maximum, nozzle assembly aperture is most
Greatly, when the aperture slot and when the air inlet duct overlapping area minimum, nozzle assembly aperture is minimum, the aperture slot and it is described into
Maximum, the minimum aperture of the area that air drain is overlapped needs to be arranged according to engine actual demand.
6. the tapered nozzle vane structure of the inclination of variable-nozzle assembly as claimed in claim 5, which is characterized in that described to open
Degree annulate shaft has fork slot and shift fork to side design, and the shift fork stirs the fork slot in rotary manner, drives aperture ring
Rotation adjusts nozzle assembly opening size.
7. the tapered nozzle vane structure of the inclination of variable-nozzle assembly as claimed in claim 6, which is characterized in that described group
The driving method of fork is electric actuator driving.
8. the tapered nozzle vane structure of the inclination of variable-nozzle assembly as claimed in claim 6, which is characterized in that described group
The driving method of fork is pneumatic actuator driving.
9. the tapered nozzle vane structure of the inclination of variable-nozzle assembly as described in claim 1, which is characterized in that the lid
Plate and face that the nozzle vane cooperates are the identical conical surface of shape, and the cover board can be bonded with the conical surface of the nozzle vane
To together.
10. the tapered nozzle vane structure of the inclination of variable-nozzle assembly as claimed in claim 9, which is characterized in that described
Cover board is assembled together with the nozzle vane by revocable connection type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820782258.5U CN208294573U (en) | 2018-05-24 | 2018-05-24 | A kind of nozzle vane structure that the inclination of variable-nozzle assembly is tapered |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820782258.5U CN208294573U (en) | 2018-05-24 | 2018-05-24 | A kind of nozzle vane structure that the inclination of variable-nozzle assembly is tapered |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208294573U true CN208294573U (en) | 2018-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820782258.5U Expired - Fee Related CN208294573U (en) | 2018-05-24 | 2018-05-24 | A kind of nozzle vane structure that the inclination of variable-nozzle assembly is tapered |
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| Country | Link |
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| CN (1) | CN208294573U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361077A (en) * | 2018-05-24 | 2018-08-03 | 奕森科技（上海）有限公司 | A kind of nozzle vane structure that the inclination of variable-nozzle assembly is tapered |
-
2018
- 2018-05-24 CN CN201820782258.5U patent/CN208294573U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361077A (en) * | 2018-05-24 | 2018-08-03 | 奕森科技（上海）有限公司 | A kind of nozzle vane structure that the inclination of variable-nozzle assembly is tapered |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210329 Address after: 215506 no.1150, Southeast Avenue, Southeast street, Changshu City, Suzhou City, Jiangsu Province Patentee after: Eason Technology (Jiangsu) Co.,Ltd. Address before: 201703 1st floor, building 1, 518 Songhui Road, Qingpu District, Shanghai Patentee before: ISEM TECHNOLOGIES (SHANGHAI) Co. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181228 |