CN101634233B - Pneumatic nozzle of variable geometry turbocharger (VGT) - Google Patents
Pneumatic nozzle of variable geometry turbocharger (VGT) Download PDFInfo
- Publication number
- CN101634233B CN101634233B CN2009100177180A CN200910017718A CN101634233B CN 101634233 B CN101634233 B CN 101634233B CN 2009100177180 A CN2009100177180 A CN 2009100177180A CN 200910017718 A CN200910017718 A CN 200910017718A CN 101634233 B CN101634233 B CN 101634233B
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- Prior art keywords
- air
- blast atomizer
- supporting disk
- variable geometry
- pneumatic nozzle
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 230000000295 complement effect Effects 0.000 description 4
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- 230000001105 regulatory effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 1
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- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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Abstract
The invention relates to a pneumatic nozzle of a variable geometry turbocharger (VGT), comprising a pneumatic nozzle supporting disk, and a plurality of pneumatic nozzle blades which are arranged on the pneumatic nozzle supporting disk, wherein, the pneumatic nozzle blades comprise pneumatic nozzle moving blades and pneumatic nozzle stationary blades, and the pneumatic nozzle stationary blades are internally provided with a flow channel. During operation of the turbocharger, the width of the air flow channel among the adjacent pneumatic nozzle blades can be adjusted by adjusting the rotation angle of the pneumatic nozzle moving blades so as to adjust the pressure ratio of the turbocharger so that the turbocharger is matched with the working condition of an engine; and when adequate pressurizing ratio can not be provided in the event that the working condition of the engine is further reduced and the width of the air flow channel among the adjacent pneumatic nozzle blades is adjusted to the minimum, supplementary gas can be sprayed by a connecting pipe, the channel on the pneumatic nozzle supporting disk and the flow channel on the pneumatic nozzle stationary blades so as to improve the pressure ratio of the turbocharger so that the turbocharger is matched with the working condition of the engine.
Description
Technical field
The present invention relates to a kind of turbosupercharger nozzle, relate in particular to a kind of air-blast atomizer of variable geometry turbocharger, belong to field of internal combustion engine.
Background technique
Turbosupercharger is the waste gas that utilizes motor to discharge, flow into according to certain route in the turbine case of turbosupercharger to drive turbine, and the drive compressor impeller high speed rotating coaxial with turbine, fresh air is compressed the cylinder that enters motor under the compressor impeller action of centrifugal force, because pressurized air density is big, thereby increased the air demand of motor, can make more fuel oil perfect combustion, improved the power of motor, saved the consumption of fuel oil, because oil inflame is abundant, CO, HC, NO in the motor institute exhausting air have been reduced simultaneously
XAnd the content of harmful substance such as PM, through the guiding function of engine exhaust air-flow also having been reduced synchronously the noise of motor.
Conventional turbocharger can not provide enough pressure ratios because its flow area can not change when the low engine speed operating mode, and because the response characteristic difference causes motor to quicken the smoke intensity height; Pressure ratio during for the response characteristic of improving the engine turbine pressurized machine and low operating mode, people have adopted variable geometry turbine in pressurized machine, variable geometry turbine can be when the turbine circulation area being regulated with the response characteristic that improves turbosupercharger and low operating mode pressure ratio, low engine speed torque characteristics and booster response characteristic are improved; Variable nozzle turbocharger is exactly a kind of of variable geometry turbocharger, drive the some swing nozzle vanes that are distributed in the turbine case gas-entered passageway by the control driving mechanism, these nozzle vanes are controlled jointly, change the throat area of vane channel by the different amount of adjusting blade, thereby play the effect that control enters the exhaust energy of turbine.Combining nozzle is a kind of new type nozzle form that is applied on the variable nozzle turbocharger, form by nozzle moving vane and nozzle stator blade, the end of nozzle moving vane is provided with the moving vane running shaft, the nozzle moving vane is rotationally connected by moving vane running shaft and nozzle support dish, cooperate by dynamic and static blade, realize gas flow modulation, effectively solved air-blast atomizer single in the present nozzle-type variable geometry turbocharger intrinsic pneumatic adjusting defective, can effectively improve the matching effect of variable nozzle turbocharger, especially improve the low speed matching effect.The combining nozzle structure of present employed variable geometry turbocharger is as follows: as shown in Figure 1, the combining nozzle of variable geometry turbocharger, comprise supporting disk 5, the surface that supporting disk 5 is positioned at turbine 4 one sides is provided with several combining nozzle blades 1, the surface of the opposite side of supporting disk 5 is provided with several shift forks, combining nozzle blade 1 comprises moving vane 3 and stator blade 2, as shown in Figure 2, the end that moving vane 3 matches with stator blade 2 is provided with running shaft 6, moving vane 3 is rotationally connected by running shaft 6 and supporting disk 5, running shaft 6 passes supporting disk 5 and links to each other with shift fork, stator blade 2 is fixedly connected on the supporting disk 5 by the coupling shaft 7 of stator blade 2, and moving vane 3 and stator blade 2 have arcuate structure respectively, as shown in Figure 3, moving vane 3 can rotate according to the direction shown in Fig. 3, and the maximum angle that moving vane 3 turns over is C1.
The variable geometry turbocharger of present institute use combining nozzle, find that in actual applications variable geometry turbocharger also comes with some shortcomings aspect Performance Match, modern engine speed is more and more higher, need matching range also more and more wider, present employed variable-geometry pressurized machine is difficult in the whole service operating mode and all keeps high efficient.Variable nozzle turbocharger is the calibration point coupling, reaches requirement with the through-current capability that guarantees pressurized machine, and the then complete depending nozzle blade of low speed operating mode is regulated, and regulation range is wide, all possesses good effect and high turbine efficiency in the very difficult assurance on a large scale; Combining nozzle is a high pulling torque point coupling, nozzle vane is closed between calibration point and high pulling torque point, under the low speed operating mode, the nozzle moving vane is opened, reduced the regulation range of nozzle vane, help realizing the optimization control in the whole regulation range, but calibration point need dispose auxiliary conditioning units such as bleed valve again.In addition, above-mentioned two kinds of adjustable nozzle turbosupercharger all are to rely on fully to reduce the nozzle circulation area and improve the turbine suction pressure in low operating mode, make the retrievable energy of turbine increase and reach the purpose of raising turbine output, because the extraction flow under the low engine speed operating mode is little, the simple effect that relies on the raising exhaust pressure to improve turbine output is poor, and too high exhaust pressure is unfavorable for the raising of engine operation efficient.
Summary of the invention
The technical problem to be solved in the present invention is at above problem, provides a kind of and can improve turbosupercharger response characteristic and pressure ratio, can make the air-blast atomizer of the variable geometry turbocharger of the efficient coupling of turbosupercharger and the full operating mode of motor.
For addressing the above problem, the present invention adopts following technological scheme: the air-blast atomizer of variable geometry turbocharger, comprise air-blast atomizer supporting disk and several air-blast atomizer blades that are arranged on the air-blast atomizer supporting disk, described air-blast atomizer blade comprises air-blast atomizer moving vane and air-blast atomizer stator blade, and described air-blast atomizer stator blade inside is provided with runner.
A kind of concrete optimized project, described runner comprises the first flow and second runner that is interconnected, the Surface Vertical of the flow direction of described first flow inner fluid and air-blast atomizer supporting disk, the flow direction of the described second runner inner fluid is surperficial parallel with the air-blast atomizer supporting disk.
A kind of concrete optimized project, described first flow is circular perpendicular to the sectional shape of fluid flow direction, described second runner is a rectangle perpendicular to the sectional shape of fluid flow direction.
A kind of concrete optimized project, the end slope setting of the described second runner exit place air-blast atomizer stator blade.
A kind of concrete optimized project, described air-blast atomizer supporting disk inside is provided with passage, and the surface that described air-blast atomizer supporting disk is provided with air-blast atomizer blade one side is provided with several attachment holes, and described each attachment hole all is connected with passage.
A kind of concrete optimized project, described several attachment holes are positioned on the identical circumference of diameter, and described several attachment holes are uniform on circumference.
A kind of concrete optimized project, the surface that described air-blast atomizer supporting disk is provided with shift fork one side is provided with connecting tube, described connecting tube and channel connection.
A kind of concrete optimized project, described air-blast atomizer moving vane comprises outer arced surface and intrados, and described intrados forms a groove, and described air-blast atomizer stator blade is positioned at groove.
A kind of concrete optimized project, the face that described air-blast atomizer stator blade matches with groove is an arc shaped surface.
The present invention adopts technique scheme, have the following advantages: when turbocharger operation, different operating modes according to motor, can regulate the width of the air-flow path between the adjacent air-blast atomizer blade by the angle of swing of regulating the air-blast atomizer moving vane, thereby regulate the response characteristic and the pressure ratio of turbosupercharger, the operating mode of turbosupercharger and motor is complementary; When the operating mode of motor further reduces, air-flow path width between the adjacent air-blast atomizer blade is modulated to hour, still can not provide enough pressure ratios, can in turbosupercharger, spray into make-up gas by passage on connecting tube, the air-blast atomizer supporting disk and air-blast atomizer stator blade upper runner, improve the pressure ratio of turbosupercharger, improve the response characteristic of turbosupercharger, the operating mode of turbosupercharger and motor is complementary, thereby has realized the efficient coupling of turbosupercharger and the full operating mode of motor.
Below in conjunction with drawings and Examples the present invention is elaborated.
Description of drawings
Accompanying drawing 1 is the structural representation of the combining nozzle of variable geometry turbocharger in the prior art;
Accompanying drawing 2 is structural representations of combining nozzle blade in the accompanying drawing 1;
Accompanying drawing 4 is structural representations of the air-blast atomizer of variable geometry turbocharger in the embodiment of the invention;
Accompanying drawing 5 is structural representations of air-blast atomizer blade in the accompanying drawing 4;
Accompanying drawing 6 is structural representations of air-blast atomizer stator blade in the accompanying drawing 5;
Accompanying drawing 7 is sectional views of accompanying drawing 6;
Accompanying drawing 8 is that the A-A of accompanying drawing 7 is to view;
Accompanying drawing 9 is structural representations of air-blast atomizer supporting disk in the accompanying drawing 4;
Accompanying drawing 10 is sectional views of accompanying drawing 9.
Among the figure: 1-combining nozzle blade; The 2-stator blade; The 3-moving vane; The 4-turbine; The 5-supporting disk; The 6-running shaft; The 7-coupling shaft; 8-air-blast atomizer supporting disk; The 9-connecting tube; 10-shift fork dish; The 11-shift fork; 12-air-blast atomizer blade; 13-air-blast atomizer moving vane; The 131-outer arced surface; The 132-intrados; 14-air-blast atomizer stator blade; The 15-power turbine; 16-stator blade coupling shaft; 17-moving vane running shaft; 18-second runner; The 19-first flow; The 20-attachment hole; The 21-through hole; The 22-passage; The 23-connecting passage; The 24-groove.
Embodiment
Embodiment: as Fig. 4, Fig. 5 and shown in Figure 6, the air-blast atomizer of variable geometry turbocharger, comprise air-blast atomizer supporting disk 8 with the air-blast atomizer supporting disk 8 coaxial power turbines that are connected 15, the surface that air-blast atomizer supporting disk 8 is positioned at power turbine 15 1 sides is provided with 13 air-blast atomizer blades 12, air-blast atomizer blade 12 is shaped as arc, another surface of air-blast atomizer supporting disk 8 is provided with shift fork dish 10, corresponding position with each air-blast atomizer blade 12 on the shift fork dish 10 is provided with shift fork 11, air-blast atomizer blade 12 comprises air-blast atomizer moving vane 13 and air-blast atomizer stator blade 14, air-blast atomizer moving vane 13 comprises outer arced surface 131 and intrados 132, intrados 132 forms a groove 24, air-blast atomizer stator blade 14 is positioned at groove 24, the face that air-blast atomizer stator blade 14 matches with groove 24 is an arc shaped surface, air-blast atomizer moving vane 13 is fixedly connected with moving vane running shaft 17, but the rotational of air-blast atomizer moving vane 13 orbiting vane running shafts 17, air-blast atomizer stator blade 14 is fixedly connected with stator blade coupling shaft 16, and air-blast atomizer stator blade 14 inside are provided with runner.
As shown in Figure 7 and Figure 8, runner comprises the first flow 19 and second runner 18 that is interconnected, the flow direction of first flow 19 inner fluids and the Surface Vertical of air-blast atomizer supporting disk 8, the flow direction of second runner, 18 inner fluids is surperficial parallel with air-blast atomizer supporting disk 8, first flow 19 is circular perpendicular to the sectional shape of fluid flow direction, second runner 18 is a rectangle perpendicular to the sectional shape of fluid flow direction, the end slope setting of second runner, 18 outlet port air-blast atomizer stator blades 14.
As Fig. 9 and shown in Figure 10, air-blast atomizer supporting disk 8 inside are provided with passage 22, passage 22 be shaped as circle, the cross section of passage 22 is a rectangle, the surface that air-blast atomizer supporting disk 8 is provided with air-blast atomizer blade 12 1 sides is provided with 13 attachment holes 20, each attachment hole 20 all is connected with passage 22,13 attachment holes 20 are positioned on the identical circumference of diameter, 13 attachment holes 20 are uniform on circumference, the coupling shaft 16 of air-blast atomizer stator blade 14 is fixedlyed connected with attachment hole 20, and the runner on the air-blast atomizer stator blade 14 is communicated with passage 22 by attachment hole 20.
The surface that air-blast atomizer supporting disk 8 is provided with shift fork 11 1 sides is provided with connecting tube 9, one end of connecting tube 9 is communicated with passage 22 by connecting passage 23, the other end of connecting tube 9 links to each other with fluid source, fluid source is not shown in the drawings, air-blast atomizer supporting disk 8 is provided with 13 through holes 21, the moving vane running shaft 17 of air-blast atomizer moving vane 13 passes through hole 21 and is connected with shift fork 11, and moving vane running shaft 17 is rotationally connected with through hole 21.
When motor is in the low speed operating mode, regulate the angle of swing of air-blast atomizer moving vane 13, the width of the air-flow path between the adjacent air-blast atomizer blade 12 is reduced, thereby improve the response characteristic and the pressure ratio of turbosupercharger, the low speed operating mode of turbosupercharger and motor is complementary; When the operating mode of motor further reduces, air-flow path width between the adjacent air-blast atomizer blade 12 is modulated to minimum, when pressure ratio can not further improve, start external source of fluid, by connecting tube 9, passage 22 on the air-blast atomizer supporting disk 8 and air-blast atomizer stator blade 14 upper runners spray into make-up gas in turbosupercharger, improve the pressure ratio of turbosupercharger, for the rotation of power turbine 15 provides energy, guarantee that motor turbosupercharger when hanging down operating mode can provide enough air inlets for motor, the operating mode of turbosupercharger and motor is complementary, to guarantee the good operation of the full operating mode of motor, realized the efficient coupling of turbosupercharger and the full operating mode of motor.
External source of fluid can be a gas, it also can be liquid water, it also can be air-water mixture, when external source of fluid is liquid water or air-water mixture, liquid water is from the outlet ejection of second runner 18, liquid water gasifies rapidly under the high temperature action of motor discharge gas, for power turbine 15 rotations provide energy.
Claims (7)
1. the air-blast atomizer of variable geometry turbocharger, comprise air-blast atomizer supporting disk (8) and be arranged on several air-blast atomizer blades (12) on the air-blast atomizer supporting disk (8), described air-blast atomizer blade (12) comprises air-blast atomizer moving vane (13) and air-blast atomizer stator blade (14), it is characterized in that: described air-blast atomizer stator blade (14) inside is provided with runner, described air-blast atomizer supporting disk (8) inside is provided with passage (22), the surface that described air-blast atomizer supporting disk (8) is provided with air-blast atomizer blade (12) one sides is provided with several attachment holes (20), described each attachment hole (20) all is connected with passage (22), described runner is communicated with passage (22) by attachment hole (20), the surface that described air-blast atomizer supporting disk (8) is provided with shift fork (11) one sides is provided with connecting tube (9), and described connecting tube (9) is communicated with passage (22).
2. the air-blast atomizer of variable geometry turbocharger as claimed in claim 1, it is characterized in that: described runner comprises the first flow (19) and second runner (18) that is interconnected, the flow direction of described first flow (19) inner fluid and the Surface Vertical of air-blast atomizer supporting disk (8), the flow direction of described second runner (18) inner fluid is surperficial parallel with air-blast atomizer supporting disk (8).
3. the air-blast atomizer of variable geometry turbocharger as claimed in claim 2, it is characterized in that: described first flow (19) is circle perpendicular to the sectional shape of fluid flow direction, and described second runner (18) is a rectangle perpendicular to the sectional shape of fluid flow direction.
4. as the air-blast atomizer of claim 2 or 3 described variable geometry turbochargers, it is characterized in that: the end slope setting of described second runner (18) outlet port air-blast atomizer stator blade (14).
5. the air-blast atomizer of variable geometry turbocharger as claimed in claim 1, it is characterized in that: described several attachment holes (20) are positioned on the identical circumference of diameter, and described several attachment holes (20) are uniform on circumference.
6. the air-blast atomizer of variable geometry turbocharger as claimed in claim 1, it is characterized in that: described air-blast atomizer moving vane (13) comprises outer arced surface (131) and intrados (132), described intrados (132) forms a groove (24), and described air-blast atomizer stator blade (14) is positioned at groove (24).
7. the air-blast atomizer of variable geometry turbocharger as claimed in claim 6, it is characterized in that: the face that described air-blast atomizer stator blade (14) matches with groove (24) is an arc shaped surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100177180A CN101634233B (en) | 2009-08-20 | 2009-08-20 | Pneumatic nozzle of variable geometry turbocharger (VGT) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100177180A CN101634233B (en) | 2009-08-20 | 2009-08-20 | Pneumatic nozzle of variable geometry turbocharger (VGT) |
Publications (2)
| Publication Number | Publication Date |
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| CN101634233A CN101634233A (en) | 2010-01-27 |
| CN101634233B true CN101634233B (en) | 2011-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100177180A Expired - Fee Related CN101634233B (en) | 2009-08-20 | 2009-08-20 | Pneumatic nozzle of variable geometry turbocharger (VGT) |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949305B (en) * | 2010-09-07 | 2013-06-05 | 康跃科技股份有限公司 | Turbocharger composite nozzle device |
| CN102900479B (en) * | 2012-10-30 | 2014-10-01 | 北京理工大学 | Variable nozzle turbocharger regulating mechanism integrated on turbine shell |
| GB2533351A (en) * | 2014-12-17 | 2016-06-22 | Gm Global Tech Operations Inc | Internal combustion engine having a two stage turbocharger |
| ITUA20164308A1 (en) | 2016-06-13 | 2017-12-13 | Nuovo Pignone Tecnologie Srl | Variable geometry assembly for turbomachinery and turbomachinery comprising said assembly |
| KR20200014006A (en) * | 2018-07-31 | 2020-02-10 | 현대자동차주식회사 | Variable geometry turbo charger |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5372485A (en) * | 1992-11-14 | 1994-12-13 | Mercedes-Benz Ag | Exhaust-gas turbocharger with divided, variable guide vanes |
| CN1451076A (en) * | 2000-03-13 | 2003-10-22 | 联合讯号公司 | Variable geometry Turbocharger |
| CN1455843A (en) * | 2001-01-16 | 2003-11-12 | 霍尼韦尔国际公司 | Improved vane for variable nozzle turbocharger |
| CN101109295A (en) * | 2007-08-02 | 2008-01-23 | 寿光市康跃增压器有限公司 | Composite spray of variable cross-section turbosupercharger |
| CN101490389A (en) * | 2006-07-05 | 2009-07-22 | Abb涡轮***有限公司 | Secondary ventilation system for turbocharger turbine |
| CN201474730U (en) * | 2009-08-20 | 2010-05-19 | 寿光市康跃增压器有限公司 | Pneumatic nozzle of turbocharger with variable geometry |
-
2009
- 2009-08-20 CN CN2009100177180A patent/CN101634233B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5372485A (en) * | 1992-11-14 | 1994-12-13 | Mercedes-Benz Ag | Exhaust-gas turbocharger with divided, variable guide vanes |
| CN1451076A (en) * | 2000-03-13 | 2003-10-22 | 联合讯号公司 | Variable geometry Turbocharger |
| CN1455843A (en) * | 2001-01-16 | 2003-11-12 | 霍尼韦尔国际公司 | Improved vane for variable nozzle turbocharger |
| CN101490389A (en) * | 2006-07-05 | 2009-07-22 | Abb涡轮***有限公司 | Secondary ventilation system for turbocharger turbine |
| CN101109295A (en) * | 2007-08-02 | 2008-01-23 | 寿光市康跃增压器有限公司 | Composite spray of variable cross-section turbosupercharger |
| CN201474730U (en) * | 2009-08-20 | 2010-05-19 | 寿光市康跃增压器有限公司 | Pneumatic nozzle of turbocharger with variable geometry |
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| CN101634233A (en) | 2010-01-27 |
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