CN108457708A - A kind of nozzle assembly aperture ring is oriented to and location structure - Google Patents
A kind of nozzle assembly aperture ring is oriented to and location structure Download PDFInfo
- Publication number
- CN108457708A CN108457708A CN201810508838.XA CN201810508838A CN108457708A CN 108457708 A CN108457708 A CN 108457708A CN 201810508838 A CN201810508838 A CN 201810508838A CN 108457708 A CN108457708 A CN 108457708A
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- Prior art keywords
- ring
- positioning pin
- oriented
- aperture ring
- nozzle assembly
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- 238000000034 method Methods 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims description 8
- 230000008859 change Effects 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 241001672694 Citrus reticulata Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
- F01D17/12—Final actuators arranged in stator parts
- F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
- F01D17/148—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of rotatable members, e.g. butterfly valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
- F01D9/047—Nozzle boxes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
Abstract
The invention discloses a kind of nozzle assembly aperture ring guiding and location structures, are related to field of turbochargers.The present invention includes positioning pin and piston ring, specifically includes axial positioning structure, radial positioning structure and all directional guiding structures.The present invention can obtain following technique effect：Improve the fairness of driving；Reduce the frictional force of driving；Reduce the wear extent of positioning pin and aperture ring；Improve the life and reliability of component.
Description
Technical field
The present invention relates to field of turbochargers more particularly to a kind of nozzle assembly aperture ring is oriented to and location structure.
Background technology
Turbocharger is the device being used in combination with internal combustion engine, and engine charge is transported to for passing through 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 in turbine cylinder.Wherein, turbine cylinder and compressor
Shell is separately formed, and also has another middle casing to be connected between turbine cylinder and compressor housing, is used for axis
The installation held and cooling and lubricating.Turbine cylinder limits the general toroidal runner for surrounding turbine, and exhaust is from engine into becoming a mandarin
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.
Come one of booster aspect of performance challenge it 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 leading to the spray 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 provided by the compressor of turbocharger.
The nozzle of geometry-variable for turbocharger is generally divided into two main Types at present：Variable-vane sprays
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 guiding exhaust gas.In most of variable-vane nozzles,
Blade, which can enclose, to be rotated about the axis thereof, to change the 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 variable-vane nozzle is complicated, cost is relatively high, equally also limits its application range.
In the nozzle of sliding-piston type, nozzle can also include blade, but blade is fixed on suitable position.It is logical
The piston that slides axially slided in the hole in turbine shroud 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 is included 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, at least part for accommodating 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, with 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
Be 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 lived with sliding
The advantages of plunger type nozzle, simple in structure, production cost is low, and control is easy to implement.Nozzle assembly structure involved by the patent is
A kind of brand new, so its guiding-positioning structure is also a kind of completely new structure, at present there is no may be directly applied to the patent
The guiding-positioning structure of involved nozzle assembly.
For above-mentioned patent, those skilled in the art is dedicated to designing a kind of aperture ring and is oriented to and location structure, the knot
Structure makes the rotation of aperture ring more smooth out, and so that positioning pin is worn smaller, to improve controlling and the service life of booster.
Invention content
In view of the drawbacks described above of the prior art, the technical problem to be solved by the present invention is to keep the rotation of aperture ring more flat
It is suitable, so that positioning pin is worn smaller, to improve controlling and the service life of booster.
To achieve the above object, the present invention provides a kind of aperture ring guiding and location structures.
In the better embodiment of the present invention, axially position, radial direction are met by the structure of positioning pin+piston ring simultaneously
Positioning, circumferential guiding, including axial positioning structure, radial positioning structure and all directional guiding structures, axial positioning structure is by positioning
It sells flange face and nozzle ring step is constituted, radial positioning structure is made of positioning pin and piston ring, and all directional guiding structures are by positioning
Pin and piston ring are constituted, and in aperture ring rotation process, are provided rotation for aperture ring by positioning pin and piston ring and are oriented to.
Further, the distance between positioning pin flange face and nozzle ring step are larger than the height of aperture ring, that is, open
Spend annulate shaft to free gap.
Further, aperture annulate shaft to free gap be 0.2~1mm.
Further, the radial maximum position of positioning pin flange face is greater than the internal diameter of aperture ring, to provide axially position.
Further, piston ring is mounted between positioning pin flange face and cover board, and piston ring internal diameter is slightly larger than alignment pin
Diameter, piston ring thickness are slightly less than the distance between flange face and cover board, i.e. piston ring can be with flexible rotating.
Further, radial positioning is provided by piston ring outer diameter, so the maximum radial dimension of piston ring outer diameter wants smaller
In aperture ring internal diameter, high temperature clamping stagnation risk is considered, it also will there are certain intervals；The maximum radial dimension of piston ring outer diameter will also protect
Card ensures that aperture ring does not contact radially with cover board or nozzle ring more than cover board or the outer diameter of jet blade position.
Further, the quantity of positioning pin and piston ring is respectively 3~6.
Further, in aperture ring rotation process, piston ring can also be rotated around positioning pin, so aperture ring and piston
Hard friction is avoided between ring, to reduce the driving force of aperture ring, in addition, since piston ring is rotary, so
Contact point to share to fall wear extent, can further improve abrasive resistance, improve reliability nor fixed.
Further, positioning pin connects together cover board with lower section spray group ring, plays the function of fixed cover board, thus into
One step simplifies the structure of nozzle assembly.
A kind of aperture ring provided by the invention is oriented to and location structure, can obtain following technique effect：
1, the fairness of driving is improved；
2, the frictional force of driving is reduced；
3, reduce the wear extent of positioning pin and aperture ring；
4, the life and reliability of component is improved.
The technique effect of the design of the present invention, concrete structure and generation is described further below with reference to attached drawing, with
It is fully understood from the purpose of the present invention, feature and effect.
Description of the drawings
Fig. 1 is the variable-nozzle assembly Structure explosion diagram of the preferred embodiment of the present invention；
Fig. 2 is the sectional view of the positioning pin and piston ring structure of the preferred embodiment of the present invention；
Fig. 3 is the partial enlarged view of the positioning pin and piston ring structure of the preferred embodiment of the present invention.
Specific implementation mode
Multiple preferred embodiments that the present invention is introduced below with reference to Figure of description, keep its technology contents more clear and just
In understanding.The present invention can be emerged from by many various forms of embodiments, and protection scope of the present invention not only limits
The embodiment that Yu Wenzhong is mentioned.
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 there is no limit by the present invention
The size and thickness of each component.In order to keep diagram apparent, some places suitably exaggerate the thickness of component in attached drawing.
Aperture ring surrounds nozzle ring rotary motion, it is necessary to need axially position, radial positioning, circumferential guiding, nozzle assembly
It is to work in engine high-temperature exhaust gas, temperature may be up to 1050 DEG C, so control aperture ring rotation in the present context, it should to the greatest extent
CONTACT WITH FRICTION area may be reduced, it is fixed that this patent meets axially position, radial direction simultaneously using the structure of positioning pin+piston ring
Position, the demand being circumferentially oriented to, it is simple in structure to be easily achieved, and frictional force can be reduced, reduce wear extent.
As shown in Figure 1, one embodiment of the present invention is by positioning pin 1, piston ring 2, cover board 3, aperture ring 4 and nozzle ring
5 compositions.
As shown in Fig. 2, the structure of the positioning pin 1+ piston rings 2 of one embodiment of the present invention includes axially position knot
Structure, radial positioning structure and all directional guiding structures.
As shown in Figure 3, axial positioning structure is made of positioning pin flange face 11 and nozzle ring step 51, it is contemplated that high temperature card
Stagnant risk, the distance between positioning pin flange face 11 and nozzle ring step 51 are larger than the height of aperture ring 4, i.e. aperture ring
4 it is axial will there are certain free gap, interstice coverage 0.2mm；Positioning pin flange face 11 provides axially position, so positioning
The radial maximum position of pin flange face 11 is greater than the internal diameter of aperture ring 4.
As shown in Figure 3, radial positioning structure is made of positioning pin 1 and piston ring 2, and piston ring 2 is mounted on positioning pin flange
Between face 11 and cover board 3,2 internal diameter of piston ring is slightly larger than 1 diameter of axle of positioning pin, and 2 thickness of piston ring is slightly less than positioning pin flange face 11
The distance between cover board 2, i.e., piston ring 2 can be with flexible rotating；Radial positioning is provided by 2 outer diameter of piston ring, so piston ring 2
The maximum radial dimension outline of outer diameter is less than 4 internal diameter of aperture ring, considers high temperature clamping stagnation risk, also will there are certain intervals；Piston
The largest outside diameter radial dimension of ring 2 will also ensure the outer diameter more than 5 leaf position of cover board 3 or nozzle ring, to ensure aperture ring 4
It is radial to be contacted forever with cover board 3 or nozzle ring 5.
As shown in Figure 3, all directional guiding structures are made of positioning pin 1 and piston ring 2, in 4 rotation process of aperture ring, by positioning
Pin 1 and piston ring 2 are that aperture ring 4 provides rotation guiding.The quantity of positioning pin 1 and piston ring 2 is 3, is rotated in aperture ring 4
In the process, piston ring 2 can also be rotated around positioning pin 1, so hard friction is avoided between aperture ring 4 and piston ring 2, to drop
The low driving force of aperture ring 4, in addition, since piston ring 2 is rotary, so contact point is nor fixed, to
Wear extent is shared to fall, further improves abrasive resistance, improves reliability.
In addition, positioning pin 1 also has the function of fixed cover board simultaneously, i.e., cover board 3 is connected together with lower section spray group ring, from
And the structure of nozzle assembly is further simplified, improve reliability.
Difference lies in 4 axial gap of aperture ring and positioning pins 1 for second embodiment and one embodiment of the present invention
With the quantity of piston ring 2, it is described in detail below text.
As shown in Figure 1, second embodiment of the present invention is by positioning pin 1, piston ring 2, cover board 3, aperture ring 4 and nozzle ring
5 compositions.
As shown in Fig. 2, the structure of the positioning pin 1+ piston rings 2 of second embodiment of the present invention includes axially position knot
Structure, radial positioning structure and all directional guiding structures.
As shown in Figure 3, axial positioning structure is made of positioning pin flange face 11 and nozzle ring step 51, it is contemplated that high temperature card
Stagnant risk, the distance between positioning pin flange face 11 and nozzle ring step 51 are larger than the height of aperture ring 4, i.e. aperture ring
4 it is axial will there are certain free gap, interstice coverage 1mm；Positioning pin flange face 11 provides axially position, so positioning pin
The radial maximum position of flange face 11 is greater than the internal diameter of aperture ring 4.
As shown in Figure 3, radial positioning structure is made of positioning pin 1 and piston ring 2, and piston ring 2 is mounted on positioning pin flange
Between face 11 and cover board 3,2 internal diameter of piston ring is slightly larger than 1 diameter of axle of positioning pin, and 2 thickness of piston ring is slightly less than positioning pin flange face 11
The distance between cover board 2, i.e., piston ring 2 can be with flexible rotating；Radial positioning is provided by 2 outer diameter of piston ring, so piston ring 2
The maximum radial dimension outline of outer diameter is less than 4 internal diameter of aperture ring, considers high temperature clamping stagnation risk, also will there are certain intervals；Piston
The largest outside diameter radial dimension of ring 2 will also ensure the outer diameter more than 5 leaf position of cover board 3 or nozzle ring, to ensure aperture ring 4
It is radial to be contacted forever with cover board 3 or nozzle ring 5.
As shown in Figure 3, all directional guiding structures are made of positioning pin 1 and piston ring 2, in 4 rotation process of aperture ring, by positioning
Pin 1 and piston ring 2 are that aperture ring 4 provides rotation guiding.The quantity of positioning pin 1 and piston ring 2 is 6, is rotated in aperture ring 4
In the process, piston ring 2 can also be rotated around positioning pin 1, so hard friction is avoided between aperture ring 4 and piston ring 2, to drop
The low driving force of aperture ring 4, in addition, since piston ring 2 is rotary, so contact point is nor fixed, to
Wear extent is shared to fall, further improves abrasive resistance, improves reliability.
In addition, positioning pin 1 also has the function of fixed cover board simultaneously, i.e., cover board 3 is connected together with lower section spray group ring, from
And the structure of nozzle assembly is further simplified, improve reliability.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that the ordinary skill of this field is without wound
The property made labour, which according to the present invention can conceive, makes many modifications and variations.Therefore, all technician in the art
Pass through the available technology of logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Scheme, all should be in the protection domain being defined in the patent claims.
Claims (10)
1. a kind of nozzle assembly aperture ring is oriented to and location structure, which is characterized in that including positioning pin and piston ring, the piston
Ring is mounted between the flange face and the cover board of nozzle assembly of the positioning pin, specifically includes axial positioning structure, radial positioning
Structure and all directional guiding structures, the radial maximum position of positioning pin flange face are greater than the internal diameter of aperture ring, in the piston ring
Diameter is slightly larger than the positioning pin diameter of axle, and the piston ring thickness is slightly less than the distance between the flange face and the cover board.
2. nozzle assembly aperture ring as described in claim 1 is oriented to and location structure, which is characterized in that the axially position knot
Structure is made of positioning pin flange face and nozzle ring step.
3. nozzle assembly aperture ring as claimed in claim 2 is oriented to and location structure, which is characterized in that the positioning pin flange
The distance between face and the nozzle ring step are slightly larger than the height of the aperture ring, and the aperture annulate shaft is to there is certain activity
Gap.
4. nozzle assembly aperture ring as claimed in claim 3 is oriented to and location structure, which is characterized in that the free gap is
0.2~1mm.
5. the nozzle assembly aperture ring as described in Claims 1-4 is any is oriented to and location structure, which is characterized in that the diameter
It is made of to location structure the positioning pin and the piston ring.
6. nozzle assembly aperture ring as claimed in claim 5 is oriented to and location structure, which is characterized in that the piston ring outer diameter
Maximum radial dimension be slightly less than the aperture ring internal diameter.
7. nozzle assembly aperture ring as claimed in claim 6 is oriented to and location structure, which is characterized in that outside the piston ring
Diameter maximum radial dimension is more than the outer diameter of cover board or jet blade position, ensure the aperture ring it is radial not with the cover board or
Nozzle ring described in person contacts.
8. nozzle assembly aperture ring as claimed in claim 5 is oriented to and location structure, which is characterized in that circumferential be oriented to is tied
Structure is made of the positioning pin and the piston ring, in the aperture ring rotation process, by the positioning pin and the piston ring
Rotation is provided for the aperture ring to be oriented to, in the aperture ring rotation process, the piston ring is rotated around the positioning pin.
9. nozzle assembly aperture ring as claimed in claim 8 is oriented to and location structure, which is characterized in that the positioning pin and institute
The quantity for stating piston ring is respectively 3~6.
10. as claimed in claim 9, which is characterized in that the positioning pin connecting cover plate and jet blade play fixed cover board
Effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810508838.XA CN108457708A (en) | 2018-05-24 | 2018-05-24 | A kind of nozzle assembly aperture ring is oriented to and location structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810508838.XA CN108457708A (en) | 2018-05-24 | 2018-05-24 | A kind of nozzle assembly aperture ring is oriented to and location structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108457708A true CN108457708A (en) | 2018-08-28 |
Family
ID=63215539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810508838.XA Withdrawn CN108457708A (en) | 2018-05-24 | 2018-05-24 | A kind of nozzle assembly aperture ring is oriented to and location structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108457708A (en) |
-
2018
- 2018-05-24 CN CN201810508838.XA patent/CN108457708A/en not_active Withdrawn
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210330 Address after: 215506 no.1150, Southeast Avenue, Southeast street, Changshu City, Suzhou City, Jiangsu Province Applicant after: Eason Technology (Jiangsu) Co.,Ltd. Address before: 201703 1st floor, building 1, 518 Songhui Road, Qingpu District, Shanghai Applicant before: ISEM TECHNOLOGIES (SHANGHAI) Co. |
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180828 |