CN207728436U - A kind of monoblock type variable-geometry section nozzles ring - Google Patents
A kind of monoblock type variable-geometry section nozzles ring Download PDFInfo
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- CN207728436U CN207728436U CN201721572552.5U CN201721572552U CN207728436U CN 207728436 U CN207728436 U CN 207728436U CN 201721572552 U CN201721572552 U CN 201721572552U CN 207728436 U CN207728436 U CN 207728436U
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- driver plate
- plate support
- support wheel
- geometry section
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model, which relates to, belongs to exhaust turbine pressuring technology field, more particularly to a kind of monoblock type variable-geometry section nozzles ring, including mounting disc and driver plate, the mounting disc is equipped with jet blade, the mounting disc is coupled by driver plate support wheel with driver plate, the driver plate support wheel is equipped with pressure compensation opening and carbon distribution slot, and the carbon distribution slot is located in the circle circumferential direction of driver plate support wheel, and the pressure compensation opening is located at driver plate support wheel in the radial direction.The utility model is to improve the security reliability of its own by the structure of the existing variable-geometry section nozzles ring of Optimal improvements.The utility model is formed a whole all parts by welding.This method had not only met the assembly convenience of variable-geometry section nozzles ring integral installation, the reliability of movement parts, but also reduced the production cost of variable-geometry section nozzles ring, manufacture easy to process, convenient for the precision of control parts.
Description
Technical field
The utility model, which relates to, belongs to exhaust turbine pressuring technology field, and in particular to sprays in a kind of monoblock type variable-geometry section
Mouth ring.
Background technology
Turbocharger is that Modern Engine improves power, energy resource saving and improves the essential parts of discharge.No
The discharge standard of disconnected upgrading forces engine that must reach the index that discharge standard requires under the premise of not reducing its performance.It is right
For conventional exhaust turbocharger, it is difficult to not only meet the performance indicator of engine but also discharge standard can be met, with variable
The exhaust-driven turbo-charger exhaust-gas turbo charger of geometric cross section nozzle ring can be good at solving the problems, such as this.With the application of the technology, when
Preceding variable-geometry section nozzles ring will appear the disabler of nozzle ring in use, and specific manifestation has turbocharger
Low speed response is poor, surge, vibrate, have abnormal sound, engine exhaust temperature high, turbine rotor hypervelocity, engine power be low, torque not
Phenomena such as sufficient.It is that stuck, nozzle vane occurs for variable-geometry section nozzles ring assemblies to lead to one of root for above-mentioned phenomenon occur
Mechanism cannot be adjusted, and jet blade is stuck under the different operating condition of engine will appear different phenomenons, so it is variable
The reliability of geometric cross section nozzle ring directly affects the security and stability of variable-geometry section turbocharger operation.
Variable-geometry section nozzles ring will appear the stuck phenomenon of nozzle ring in long-term use, show as jet blade
Cannot be or even completely stuck with driver plate flexible rotating, it may appear that turbocharger low speed response is poor, surge, vibration, abnormal sound, hair
Phenomena such as motivation delivery temperature is high, turbine rotor exceeds the speed limit, engine power is low, torque is insufficient, seriously affects turbocharger
Working performance can cause turbocharger badly damaged if debugged not in time.Therefore, variable-geometry section is improved
The reliability of nozzle ring is most important to turbocharger or even for the engine.
Therefore, meeting outside the needs of variable-geometry section turbocharger performance, how to improve the spray of variable-geometry section
The security and stability of mouth ring is the key that influence variable-geometry section turbocharger.
Utility model content
In view of the above technical problems, the utility model provides a kind of the variable of light and handy, the highly integrated high reliability of manufacture
Geometric cross section nozzle ring can reduce variable-geometry section nozzles ring and stuck possibility occurs.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：
A kind of monoblock type variable-geometry section nozzles ring, including mounting disc and driver plate, the mounting disc are equipped with nozzle ring
Blade, the mounting disc are coupled by driver plate support wheel with driver plate, and the driver plate support wheel is equipped with pressure compensation opening and carbon distribution
Slot, the carbon distribution slot are located in the circle circumferential direction of driver plate support wheel, and the pressure compensation opening is located at the radial direction of driver plate support wheel
On direction.
The jet blade, mounting disc and driver plate are equipped with high temperature polymeric materials coating.
The driver plate support wheel is equipped with eight pressure compensation openings.
The jet blade is twin shaft jet blade.
The mounting disc is equipped with the driver plate support wheel spacer pin coupled with driver plate support wheel.
The quantity of the driver plate support wheel is equal to
The diameter of the pressure compensation opening is equal to the diameter of (0.05~0.07) x driver plate support wheels；The diameter etc. of carbon distribution slot
In the diameter of (0.85~0.90) x driver plate support wheels；The height of carbon distribution slot is equal to the height of (0.20~0.25) x driver plate support wheels
Degree.
The utility model compared with prior art, has an advantageous effect in that：
The utility model is to improve the peace of its own by the structure of the existing variable-geometry section nozzles ring of Optimal improvements
Full reliability.Variable-geometry section nozzles circulation layer component involved by the utility model is using a kind of split type high reliability
Parts are formed a whole all parts by welding.It is whole that this method had both met variable-geometry section nozzles ring
Assembly convenience, the reliability of movement parts of body installation, and the production cost of variable-geometry section nozzles ring is reduced, convenient for adding
Work manufactures, convenient for the precision of control parts.
1) parts that fit-up gap is formed to variable-geometry section nozzles ring are surface-treated, and add high temperature resistant high score
Sub- material coating so that adhesive force of the carbon distribution on parts significantly reduces, and occurs to reduce variable-geometry section nozzles ring
Stuck possibility；
2) the driver plate support wheel with pressure compensation opening and carbon distribution slot contributes to variable-geometry section nozzles ring to adhere to carbon distribution
Automatically cleaning, from the design of component structural ensure carbon distribution can not effectively be attached on variable-geometry section nozzles ring, so far
Improve the reliability of variable-geometry section nozzles ring；
3) uniaxial jet blade and twin shaft jet blade are suitable for the variable-geometry section nozzles of different applying working conditions
Ring, to reach the optimum combination of variable-geometry section nozzles ring cost and reliability；
4) the variable-geometry section nozzles circulation layer component involved by the utility model is using a kind of split type highly reliable
Property parts, all parts are formed a whole by welding.This method had both met variable-geometry section nozzles ring
Assembly convenience, the reliability of movement parts of integral installation, and the production cost of variable-geometry section nozzles ring is reduced, it is convenient for
Processing and manufacturing, convenient for the precision of control parts.
Description of the drawings
Fig. 1 is the front view of the utility model embodiment one；
Fig. 2 is the side view of the utility model embodiment one；
Fig. 3 is the stereogram of the utility model driver plate support wheel；
Fig. 4 is the side view of the utility model driver plate support wheel；
Fig. 5 is the vertical view of the utility model driver plate support wheel；
Fig. 6 is the structural schematic diagram of the utility model single shaft nozzle vane；
Fig. 7 is the structural schematic diagram of the utility model twin shaft nozzle vane；
Fig. 8 is the front view of the utility model embodiment two；
Fig. 9 is the side view of the utility model embodiment two；
Figure 10 is the front view of the utility model embodiment three；
Figure 11 is the side view of the utility model embodiment three；
Wherein：1 is driven shift fork, and 2 be uniaxial jet blade, and 21 be twin shaft nozzle vane, and 3 be mounting disc, and 4 be driver plate
Support wheel, 5 be driver plate, and 6 limit spacing pin for nozzle ring rear cover, and 7 be nozzle ring rear cover；31 be mounting disc, 42 be driver plate support
Wheel, 71 be nozzle ring rear cover；10 be driver plate support wheel spacer pin, 32 be mounting disc, 43 is driver plate support wheel, after 71 are nozzle ring
Lid.
Specific implementation mode
The technical scheme in the utility model embodiment is clearly and completely described below, it is clear that described reality
It is only the utility model a part of the embodiment to apply example, instead of all the embodiments.Based on the embodiments of the present invention,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts, belongs to this reality
With novel protected range.
The utility model variable-geometry section nozzles ring assemblies with lower component mainly by being formed, including mounting disc 3, nozzle ring
Rear cover 7, driver plate 5, jet blade 2, driver plate support wheel 4, nozzle ring rear cover limit spacing pin 6.
The carbon distribution contained in exhaust gas after engine combustion is to influence the stuck important original of variable-geometry section nozzles ring
Cause, therefore how to avoid the delay of carbon distribution as the key of design in the design of variable-geometry section nozzles ring structure.Pass through examination
It tests the study found that the fit-up gap of variable-geometry section nozzles circulation layer component is to influence stuck one of the key factor of nozzle ring,
Carbon distribution the assembly contact position of nozzle ring driver plate and driven shift fork, driver plate and the assembly contact position of mounting disc, mounting disc with
The assembly contact position of jet blade is easiest to that accumulation delay occurs, and over time, carbon distribution can not be cleaned and lead
It causes movement secondary motion dumb, cannot finally move completely stuck.For this purpose, reducing the dress of variable-geometry section nozzles circulation layer component
It is to improve an optimization direction of variable-geometry section nozzles ring reliability, but influenced by applying working condition (high with gap
Temperature, high pressure), certain fit-up gap is necessary, and is unable to transition reduction, this, which means that, occurs several gaps that carbon distribution is detained
It cannot avoid completely, therefore the reliability of variable-geometry section nozzles ring can be improved by following approach, i.e., to nozzle
Ring blade 2, the jet blade mounting hole of mounting disc 3, driver plate 5, driven shift fork 1 are surface-treated, and high temperature resistant high score is added
Sub- material coating so that adhesive force of the carbon distribution on parts significantly reduces, and occurs to reduce variable-geometry section nozzles ring
Stuck possibility.
In addition, the reliability of variable-geometry section nozzles ring can also be improved by optimizing the structure design of moving component.
The utility model devises a kind of driver plate support wheel 4, contributes to the automatically cleaning of variable-geometry section nozzles ring attachment carbon distribution.
Embodiment one
As shown in figures 1 to 6,8 pressure compensation openings and a carbon distribution slot are designed on driver plate support wheel 4, when carbon distribution is attached to
When in mounting disc 3 and driver plate 5, carbon distribution attachment initial stage can with the adjusting of variable-geometry section nozzles ring nozzle vane 2 and by
Driver plate support wheel 4 rolls or adheres to, into the carbon distribution slot of driver plate support wheel 4, due to variable-geometry section nozzles ring spray mouth
The adjusting of blade 2 so that gas pressure fluctuates in variable-geometry section nozzles ring, the band in variable-geometry section nozzles ring
Carry out pressure difference, by the pressure compensation opening on driver plate support wheel 4, the gas pressure difference in variable-geometry section nozzles ring will adhere to
Carbon distribution blowout driver plate support wheel 4 in carbon distribution slot, repeatedly, carbon distribution will be unable to effectively be attached to variable-geometry section nozzles
On ring, the reliability of variable-geometry section nozzles ring is so far improved.
To ensure the effect of variable-geometry section nozzles ring automatically cleaning carbon distribution, the design of driver plate support wheel 4 is proposed as follows
It is preferred that recommendation：
d0=(0.05~0.07) × d1 (1)
d2=(0.85~0.90) × d1 (2)
h2=(0.20~0.25) × h1 (3)
D in formula1For 4 maximum gauge (unit mm) of driver plate support wheel；d2For carbon distribution slot diameter (unit mm)；d0It is flat for pressure
Weigh bore dia (unit mm)；h1For 4 height (unit mm) of driver plate support wheel；h2For carbon distribution groove height (unit mm).
The selection quantity of driver plate support wheel refers to following formula：
[n] is the quantity that driver plate support wheel is selected in formula；DtpMinimum diameter (the unit of driver plate support wheel is limited for mounting disc
mm)；d1For the maximum gauge (unit mm) of driver plate support wheel.Finally [n] value round numbers that gained is calculated according to formula (4) is obtained
Rounding to the selection quantity of driver plate support wheel, numerical value does not use into a method or rounding-off method, and fractional value illustrates wheel rim
Clearance condition needs to adjust driver plate support wheel d in the design if fractional value is excessive1Maximum gauge.
Embodiment two
As shown in Fig. 3-5,7-9, using twin shaft jet blade 21, remaining is the same as embodiment one.
Including mounting disc 31 and twin shaft jet blade 21, twin shaft jet blade 2 can effectively improve variable-geometry and cut
The reliability of face nozzle ring can meet requirement of the engine with exhaust brake to reliability.This kind of follow-on entirety
Formula variable-geometry section nozzles ring is using 42 mounting means of driver plate support wheel that position is fixedly mounted, each driver plate support wheel 42
It is all disposed under driven shift fork 1,8 pressure compensation openings and a carbon distribution slot is designed on driver plate support wheel 42.The rotation of driver plate 5
Limited by driven shift fork 1, the clamping stagnation of driver plate 5 be easy to happen in the place that driven shift fork 1 is contacted with driver plate 5, thus from
The location arrangements driver plate support wheel 42 of dynamic shift fork 1 helps to improve the rotation flexibility of driver plate 5, reduces driven shift fork 1 and driver plate 5
The delay of contact position carbon distribution reduces driver plate 5 and stuck possibility occurs；The use of driver plate support wheel 42 can also be reduced simultaneously
Quantity, convenient for assembling and reducing cost.
The use of this kind of driver plate support wheel 42 is improving the same of monoblock type variable-geometry section nozzles ring global reliability
When, contribute to the manufacturing cost for reducing monoblock type variable-geometry section nozzles ring, is convenient for monoblock type variable-geometry section nozzles ring
Assembling manufacturing and maintenance.
Embodiment three
As shown in Fig. 3-5,7,10,11, using twin shaft jet blade 21, and driver plate support wheel spacer pin 10 is set.It dials
It is there are gap (clearance fit), although driver plate support wheel spacer pin 10 between disk support wheel spacer pin 10 and driver plate support wheel 43
The direct unicom between balance hole is blocked, but the presence in gap ensure that each balance hole is through-hole, driver plate support wheel 43 is each
There are pressure difference inside and outside a balance hole, it ensure that driver plate support wheel 43 rotates flexible, do not influence its rotation.
It can effectively improve the reliability of variable-geometry section nozzles ring using twin shaft jet blade 21, band can be met
There is requirement of the engine to reliability of exhaust brake.This kind of follow-on monoblock type variable-geometry section nozzles ring is using fixation
43 mounting means of driver plate support wheel of installation site, each driver plate support wheel 43 are all disposed under driven shift fork 1, driver plate support
Wheel 43 be mounted on mounting disc 32 driver plate support wheel spacer pin 10 on, be designed on driver plate support wheel 43 8 pressure compensation openings and
One carbon distribution slot.The use of this kind of driver plate support wheel 43 is improving monoblock type variable-geometry section nozzles ring global reliability
Meanwhile helping to reduce the manufacturing cost of monoblock type variable-geometry section nozzles ring, it is convenient for monoblock type variable-geometry section nozzles
The assembling manufacturing of ring and maintenance.
The specific installation step of monoblock type variable-geometry section nozzles ring is as follows：
1) jet blade 2 is assembled in mounting disc 3, according to the blade profile of jet blade 2 arrangement rotation direction, by driver plate branch
Support wheel 4 assembles driver plate 5 after being arranged into mounting disc 3, is welded into driven shift fork 1 and jet blade 2 using argon arc welding
The regulating mechanism of the jet blade 2 of variable-geometry section nozzles ring is completed in one, at this time assembly；
2) nozzle ring rear cover limit spacing pin 6 is assembled in mounting disc 3, nozzle ring rear cover 7 is passed through into nozzle ring rear cover
Spacing pin 6 is limited, the actually active height for using height adjusting block (special assembly tooling) correction jet blade 2 final at this time
Degree, it is using argon arc welding that nozzle ring rear cover limit spacing pin 6 is integrally welded with nozzle ring rear cover 7, it completes at this time variable several
All assembly works of what section nozzles ring；
3) variable-geometry section nozzles ring assembling process needs argon arc welding twice, and variable-geometry section is sprayed after the completion of welding
Mouth ring forms an entirety, is oriented to by the dowel hole in mounting disc 3 on variable-geometry section nozzles ring fixed variable several
What assembly of the section nozzles ring in the turbocharger of variable-geometry section.
Only the preferred embodiment of the utility model is explained in detail above, but the utility model be not limited to it is above-mentioned
Embodiment can also not depart from the utility model aims within the knowledge of a person skilled in the art
Under the premise of various changes can be made, various change should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of monoblock type variable-geometry section nozzles ring, including mounting disc and driver plate, the mounting disc is equipped with nozzle ring leaf
Piece, the mounting disc are coupled by driver plate support wheel with driver plate, it is characterised in that：The driver plate support wheel is equipped with pressure balance
Hole and carbon distribution slot, the carbon distribution slot are located in the circle circumferential direction of driver plate support wheel, and the pressure compensation opening is located at driver plate support
Wheel is in the radial direction.
2. monoblock type variable-geometry section nozzles ring according to claim 1, it is characterised in that：The jet blade,
Mounting disc and driver plate are equipped with high temperature polymeric materials coating.
3. monoblock type variable-geometry section nozzles ring according to claim 1, it is characterised in that：On the driver plate support wheel
Equipped with eight pressure compensation openings.
4. monoblock type variable-geometry section nozzles ring according to claim 1, it is characterised in that：The jet blade is
Twin shaft jet blade.
5. monoblock type variable-geometry section nozzles ring according to claim 1, it is characterised in that：The mounting disc is equipped with
The driver plate support wheel spacer pin coupled with driver plate support wheel.
6. monoblock type variable-geometry section nozzles ring according to claim 1, it is characterised in that：The driver plate support wheel
Quantity is equal to
7. monoblock type variable-geometry section nozzles ring according to claim 1, it is characterised in that：The pressure compensation opening
Diameter is equal to the diameter of (0.05~0.07) x driver plate support wheels；The diameter of carbon distribution slot is equal to (0.85~0.90) x driver plate support wheels
Diameter；The height of carbon distribution slot is equal to the height of (0.20~0.25) x driver plate support wheels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721572552.5U CN207728436U (en) | 2017-11-22 | 2017-11-22 | A kind of monoblock type variable-geometry section nozzles ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721572552.5U CN207728436U (en) | 2017-11-22 | 2017-11-22 | A kind of monoblock type variable-geometry section nozzles ring |
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|---|---|
| CN207728436U true CN207728436U (en) | 2018-08-14 |
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ID=63088403
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| CN201721572552.5U Active CN207728436U (en) | 2017-11-22 | 2017-11-22 | A kind of monoblock type variable-geometry section nozzles ring |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505663A (en) * | 2018-11-29 | 2019-03-22 | 江西省萍乡市三善机电有限公司 | A kind of nozzle ring in turbocharger |
| US11092032B2 (en) | 2018-08-28 | 2021-08-17 | Pratt & Whitney Canada Corp. | Variable vane actuating system |
| US11092167B2 (en) | 2018-08-28 | 2021-08-17 | Pratt & Whitney Canada Corp. | Variable vane actuating system |
| US11371380B2 (en) | 2020-12-01 | 2022-06-28 | Pratt & Whitney Canada Corp. | Variable guide vane assembly and vane arms therefor |
-
2017
- 2017-11-22 CN CN201721572552.5U patent/CN207728436U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11092032B2 (en) | 2018-08-28 | 2021-08-17 | Pratt & Whitney Canada Corp. | Variable vane actuating system |
| US11092167B2 (en) | 2018-08-28 | 2021-08-17 | Pratt & Whitney Canada Corp. | Variable vane actuating system |
| CN109505663A (en) * | 2018-11-29 | 2019-03-22 | 江西省萍乡市三善机电有限公司 | A kind of nozzle ring in turbocharger |
| CN109505663B (en) * | 2018-11-29 | 2021-08-17 | 江西省萍乡市三善机电有限公司 | Nozzle ring used on turbocharger |
| US11371380B2 (en) | 2020-12-01 | 2022-06-28 | Pratt & Whitney Canada Corp. | Variable guide vane assembly and vane arms therefor |
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