CN102606233A - Variable-section spiral case with blade nozzle ring - Google Patents
Variable-section spiral case with blade nozzle ring Download PDFInfo
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- CN102606233A CN102606233A CN2012100720605A CN201210072060A CN102606233A CN 102606233 A CN102606233 A CN 102606233A CN 2012100720605 A CN2012100720605 A CN 2012100720605A CN 201210072060 A CN201210072060 A CN 201210072060A CN 102606233 A CN102606233 A CN 102606233A
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- spiral case
- air inlet
- nozzle ring
- guide vane
- angle
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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 invention discloses a variable-section spiral case with a blade nozzle ring. The variable-section spiral case comprises a spiral case, a turbine wheel and an air inlet runner of the spiral case are arranged in the spiral case, a nozzle ring is arranged at a position of the air inlet runner of the spiral case close to the turbine wheel, a tongue part of the spiral case is arranged on a spiral case wall inside the air inlet runner of the spiral case and close to a spiral case air inlet, a wing-shaped pneumatic flow guide vane is arranged at a position in the air inlet runner of the spiral case close to the nozzle ring and fixedly connected with the spiral case into a whole. According to the variable-section spiral case with the blade nozzle ring, an inlet angle of the air flow entering the turbine wheel can be better adjusted, the inlet angles of the waste air flows entering the turbine wheel are consistent, so that the energy loss of the inflowing air flow is reduced, and the air inlet efficiency of the turbine wheel is improved.
Description
Technical field
The present invention relates to a kind of variable cross section spiral case, thus specifically at spiral case nozzle place through designing the variable cross section spiral case that has the leaf nozzle ring that special guide vane structure effectively guides spiral case inlet stream angle, belong to the supercharging of internal combustion engine field.
Background technique
Turbocharging technology improves day by day the requirement of engine performance and discharging along with society and is more and more paid attention to.The nozzle ring assembly is a critical component on the turbocharger turbine, and its project organization directly influences the performance characteristic of turbosupercharger, and then can influence the service behaviour of motor.Therefore, the nozzle ring structural design becomes the research and development emphasis.The nozzle ring of turbosupercharger is according to having or not nozzle vane to be divided into the non-blade nozzle ring and two kinds of structures of leaf nozzle ring being arranged.
Traditional turbine structure is provided with the non-blade nozzle ring usually, and non-blade nozzle ring and spiral case are made of one, and constitutes vaneless scroll, and the radial cross section of vaneless scroll dwindles to jet expansion gradually.The spiral case size of band non-blade nozzle ring is little, light weight, and simple in structure, cost is low, and efficiency change is more smooth when variable working condition.Deficiency is that loss in efficiency reaches, and peak efficiency is lower, and in addition, vaneless scroll needs the spiral case of design different cross section during with different Engine Matching, and is cumbersome.
Increasingly stringent along with Abgasgesetz enforcement; Variable-area turbocharger (VGT) has become the emphasis of pressurized machine industry research and development; The blade angle that was used for the nozzle ring assembly of engine turbine pressurized machine in the past is to immobilize; Blade is nonadjustable, and pressurized machine can only make motor in the interval efficient operation of some power.At present, generally being employed in increases the swivel nozzle blade structure in the turbine, thereby and realize that through regulation structure the nozzle vane rotation satisfies the requirement of variable cross section, this structure can effectively improve the efficient of turbosupercharger and can widen the matching range with motor.U.S. Pat 6419464B1, US0031728A1; German patent DE 3844189A1; What Chinese patent CN100523439C, CN101949305A, CN101191425A all disclosed a kind of turbosupercharger has a foliar spray mouth ring structure; The leaf nozzle ring that has that is designed changes the throat area of vane channel through the different amount that the nozzle vane on the regulation structure control nozzle ring is set, thereby plays the effect that control gets into the turbine exhaust energy.Practical application learns, problem such as this structural reliability difference and efficient are low.
In addition, the another kind of distressed structure of the nozzle vane on the leaf nozzle ring is arranged, the equally distributed guide vane that promptly design is connected with the spiral case one at spiral case nozzle place, thus steering flow drives the turbine acting with suitable flow angle.This project organization turbine inlet angle is consistent, and the turbine intake efficiency is restricted.
Above-mentioned have foliar spray mouth structure designed nozzle blade structure shape all to reach unanimity, and be evenly arranged on the nozzle ring, and promptly design is the structural formula nozzle vane.But owing to the air-flow that enters into turbine from the spiral case air outlet changes in airspeed that makes progress in week and density; Thus; Hope that a kind of unstructured of design has the nozzle vane of leaf nozzle ring; Better regulate the inlet stream angle that gets into turbine, the inlet flow field that gets into turbine wheel is evenly distributed, effectively promote turbine efficiency.
Summary of the invention
The problem that the present invention will solve is to the variable nozzle turbocharger (VNT) of the nozzle blade of the conventional turbine pressurized machine of band non-blade nozzle ring, band structure formula adjustable angle, and the above-mentioned deficiency of the turbosupercharger of nozzle place band structure formula fixed guide vane; Provide a kind of and can better regulate the inlet stream angle that gets into turbine; Make exhaust flow get into the inlet angle unanimity of turbine wheel; Reduce the energy loss of inlet stream, improve the variable cross section spiral case that has the leaf nozzle ring of the intake efficiency of turbine wheel.
In order to address the above problem, the present invention adopts following technological scheme:
A kind of variable cross section spiral case that has the leaf nozzle ring; Comprise spiral case; Turbine wheel is installed in the spiral case; Be provided with the spiral case air inlet runner in the said spiral case, the spiral case air inlet runner is provided with nozzle ring near the turbine wheel place, and it is inboard and be provided with volute tongue near the spiral case wall of spiral case suction port to be positioned at the spiral case air inlet runner;
Be provided with the guide vane of wing blade pneumatic type in the said spiral case air inlet runner near the position of nozzle ring, said guide vane is fixedly connected with the spiral case one.
Below be the further improvement of the present invention to such scheme:
Said spiral case air inlet runner is a single channel, and guide vane is arranged on the nozzle ring position near spiral case air inlet runner inner spiral casing tongue.
Further improve: the quantity of guide vane is one, and said guide vane chord length is 3-40mm.
Further improve: the angle of said guide vane established angle is the 100-170 degree; The angle of said guide vane inlet angle is the 0-90 degree; The angle of said guide vane exit angle is the 0-90 degree.
The another kind of improvement:
The quantity of guide vane is two, and the chord length of two guide vanes lays respectively between the 3-40mm and be unequal mutually.
Further improve: the angle of said two guide vane established angles lays respectively between the 100-170 degree and is unequal mutually;
The angle of said two guide vane inlet angles lays respectively between the 0-90 degree and is unequal mutually;
The angle of said two guide vane exit angle lays respectively between the 0-90 degree and is unequal mutually.
Further improve: the distance between two guide vanes is 3-50mm.
The another kind of improvement: be provided with a pneumatic barrier in the said spiral case air inlet runner, said pneumatic barrier is partitioned into spiral case air inlet inner flow passage and spiral case air inlet outer flow passage with the spiral case air inlet runner, and the week that said spiral case air inlet outer flow passage is positioned at spiral case air inlet inner flow passage laterally.
The air inlet zone angle value of said spiral case air inlet inner flow passage is the arbitrary value between the 0-340 degree; The air inlet zone angle value of pairing spiral case air inlet outer flow passage is the arbitrary value between the 360-20 degree, and the air inlet zone angle value sum of said spiral case air inlet inner flow passage and said spiral case air inlet outer flow passage is 360 degree.
Further improve: the quantity of guide vane is several, evenly is arranged on the interior position near nozzle ring of said spiral case air inlet inner flow passage and spiral case air inlet outer flow passage respectively.
The another kind of improvement: be provided with at least two pneumatic barriers in the said spiral case air inlet runner; Said pneumatic barrier is partitioned at least three spiral case air inlet runners with the spiral case air inlet runner; Each spiral case air inlet runner is non-full admission runner, and the air inlet regional perspective sum of said each non-full admission runner is 360 degree.
Further improve: the quantity of guide vane is several, evenly is arranged on the interior position near nozzle ring of each spiral case air inlet runner respectively.
Further improve:
Distance between adjacent two guide vanes is 3-50mm, and the chord length of several guide vanes lays respectively between the 3-40mm and be unequal mutually.
Further improve: the angle of said several guide vane established angles lays respectively between the 100-170 degree and is unequal mutually;
The angle of said several guide vane inlet angles lays respectively between the 0-90 degree and is unequal mutually;
The angle of said several guide vane exit angle lays respectively between the 0-90 degree and is unequal mutually.
The present invention can better regulate the inlet stream angle that gets into turbine, the inlet angle unanimity that makes exhaust flow get into turbine wheel, the energy loss of minimizing inlet stream, the intake efficiency of raising turbine wheel.
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Description of drawings
Fig. 1 is for having the structural representation of the variable cross section spiral case of leaf nozzle ring in the embodiment of the invention 1;
Fig. 2 is for having the axial cross section structural representation of the variable cross section spiral case of leaf nozzle ring in the embodiment of the invention 1;
Fig. 3 is for having the structural representation of the variable cross section spiral case of leaf nozzle ring in the embodiment of the invention 2;
Fig. 4 is for having the structural representation of the variable cross section spiral case of leaf nozzle ring in the embodiment of the invention 3;
Fig. 5 is for having the axial cross section structural representation of the variable cross section spiral case of leaf nozzle ring in the embodiment of the invention 3;
Fig. 6 is for having the structural representation of the variable cross section spiral case of leaf nozzle ring in the embodiment of the invention 4.
Among the figure: the 1-spiral case; The 2-turbine wheel; 3-spiral case suction port; The 4-volute tongue; 5-spiral case air outlet; 6-spiral case air inlet runner; The 7-nozzle ring; The 8-guide vane; The 9-pneumatic barrier; 10-spiral case air inlet inner flow passage; 11-spiral case air inlet outer flow passage; α-guide vane established angle; β-guide vane inlet angle; γ-guide vane exit angle.
Embodiment
Said spiral case air inlet runner 6 is a single channel, and at the guide vane 8 that is provided with 1 wing blade pneumatic type near nozzle ring 7 positions of volute tongue 4, said guide vane 8 is fixedly connected with spiral case 1 one.
The chord length L of said guide vane 8 is 3-40mm.
The diametric angle of tangent line and this outlet side that the guide vane pressure side is positioned at place, guide vane outlet side is guide vane established angle α, and the angle of said guide vane established angle α is the 100-170 degree.
Guide vane is guide vane inlet angle β at the tangent line and the angle of this inlet end between the tangent line on the turbine wheel circumference at inlet end place, and the angle of said guide vane inlet angle β is the 0-90 degree.
The angle of guide vane center line between the tangent line at the tangent line at guide vane outlet side place and this tangent line and turbine wheel circumference intersection point place is guide vane exit angle γ, and the angle of said guide vane exit angle γ is the 0-90 degree.
Embodiment 2, and is as shown in Figure 3, when said spiral case air inlet runner 6 is single channel, and can also be at the guide vane 8 that is provided with 2 wing blade pneumatic types near nozzle ring 7 positions of volute tongue 4.
The chord length L of two guide vanes 8 is respectively between 3-40mm and is unequal mutually.
The angle of said two guide vane established angle α lays respectively between the 100-170 degree and is unequal mutually.
The angle of said two guide vane inlet angle β lays respectively between the 0-90 degree and is unequal mutually.
The angle of said two guide vane exit angle γ lays respectively between the 0-90 degree and is unequal mutually.
Distance B between said two guide vanes is 3-50mm.
The air inlet zone angle value Φ of said spiral case air inlet inner flow passage 10 is the arbitrary value between the 0-340 degree; The air inlet zone angle value θ of pairing spiral case air inlet outer flow passage 11 is the arbitrary value between the 360-20 degree, and the air inlet zone angle value sum of said spiral case air inlet inner flow passage 10 and said spiral case air inlet outer flow passage 11 is 360 degree.
The said spiral case air inlet inner flow passage 10 interior guide vanes 8 that evenly are provided with several wing blade pneumatic types near nozzle ring 7 positions; Also evenly be provided with several wing blade pneumatic type guide vanes 8 near nozzle ring 7 positions in the said spiral case air inlet outer flow passage 11, the distance B between adjacent two guide vanes 8 is 3-50mm.
The chord length L of several guide vanes 8 lays respectively between the 3-40mm and is unequal mutually.
The angle of said several guide vane established angles α lays respectively between the 100-170 degree and is unequal mutually.
The angle of said several guide vane inlet angles β lays respectively between the 0-90 degree and is unequal mutually.
The angle of said several guide vane exit angle γ lays respectively between the 0-90 degree and is unequal mutually.
Embodiment 4; As shown in Figure 6; On embodiment 3 basis, can in said spiral case air inlet runner 6, be provided with at least two pneumatic barriers 9, said pneumatic barrier 9 is partitioned at least three spiral case air inlet runners with spiral case air inlet runner 6; Each spiral case air inlet runner is non-full admission runner, and the air inlet regional perspective sum of said each non-full admission runner is 360 degree.
In each spiral case air inlet runner, all evenly be provided with the guide vane 8 of several wing blade pneumatic types near the position of nozzle ring, the arrangement of said several guide vanes 8 is identical with the arrangement of guide vane 8 among the embodiment 3.
Claims (13)
1. variable cross section spiral case that has the leaf nozzle ring; Comprise spiral case (1); Turbine wheel (2) is installed in the spiral case (1); Be provided with spiral case air inlet runner (6) in the said spiral case (1), spiral case air inlet runner (6) locates to be provided with nozzle ring (7) near turbine wheel (2), be positioned at spiral case air inlet runner (6) inboard and near the spiral case wall of spiral case suction port (3) be provided with volute tongue (4);
It is characterized in that: be provided with the guide vane (8) of wing blade pneumatic type in the said spiral case air inlet runner (6) near the position of nozzle ring (7), said guide vane (8) is fixedly connected with spiral case (1) one.
2. a kind of variable cross section spiral case that has the leaf nozzle ring according to claim 1 is characterized in that:
Said spiral case air inlet runner (6) is a single channel, and guide vane (8) is arranged on nozzle ring (7) position near spiral case air inlet runner (6) inner spiral casing tongue (4).
3. a kind of variable cross section spiral case that has the leaf nozzle ring according to claim 2 is characterized in that:
The quantity of guide vane (8) is one, and said guide vane chord length (L) is 3-40mm.
4. a kind of variable cross section spiral case that has the leaf nozzle ring according to claim 3 is characterized in that:
The angle of said guide vane established angle (α) is the 100-170 degree; The angle of said guide vane inlet angle (β) is the 0-90 degree; The angle of said guide vane exit angle (γ) is the 0-90 degree.
5. a kind of variable cross section spiral case that has the leaf nozzle ring according to claim 2 is characterized in that:
The quantity of guide vane (8) is two, and the chord length (L) of two guide vanes (8) lays respectively between the 3-40mm and be unequal mutually.
6. a kind of variable cross section spiral case that has the leaf nozzle ring according to claim 5 is characterized in that: the angle of said two guide vane established angles (α) lays respectively between the 100-170 degree and is unequal mutually;
The angle of said two guide vane inlet angles (β) lays respectively between the 0-90 degree and is unequal mutually;
The angle of said two guide vane exit angle (γ) lays respectively between the 0-90 degree and is unequal mutually.
7. a kind of variable cross section spiral case that has the leaf nozzle ring according to claim 6 is characterized in that: the distance (D) between two guide vanes is 3-50mm.
8. a kind of variable cross section spiral case that has the leaf nozzle ring according to claim 1; It is characterized in that: be provided with a pneumatic barrier (9) in the said spiral case air inlet runner (6); Said pneumatic barrier (9) is partitioned into spiral case air inlet inner flow passage (10) and spiral case air inlet outer flow passage (11) with spiral case air inlet runner (6), and the week that said spiral case air inlet outer flow passage (11) is positioned at spiral case air inlet inner flow passage (10) laterally.
9. a kind of variable cross section spiral case that has the leaf nozzle ring according to claim 8 is characterized in that:
The quantity of guide vane (8) is several, evenly is arranged on the interior position near nozzle ring (7) of said spiral case air inlet inner flow passage (10) and spiral case air inlet outer flow passage (11) respectively.
10. a kind of variable cross section spiral case that has the leaf nozzle ring according to claim 1; It is characterized in that: be provided with at least two pneumatic barriers (9) in the said spiral case air inlet runner (6); Said pneumatic barrier (9) is partitioned at least three spiral case air inlet runners with spiral case air inlet runner (6); Each spiral case air inlet runner is non-full admission runner, and the air inlet regional perspective sum of said each non-full admission runner is 360 degree.
11. a kind of variable cross section spiral case that has the leaf nozzle ring according to claim 10 is characterized in that: the quantity of guide vane (8) is several, evenly is arranged on the interior position near nozzle ring (7) of each spiral case air inlet runner respectively.
12., it is characterized in that according to claim 9 or 11 described a kind of variable cross section spiral cases that have the leaf nozzle ring:
Distance (D) between adjacent two guide vanes (8) is 3-50mm, and the chord length (L) of several guide vanes (8) lays respectively between the 3-40mm and be unequal mutually.
13. a kind of variable cross section spiral case that has the leaf nozzle ring according to claim 12 is characterized in that: the angle of said several guide vane established angles (α) lays respectively between the 100-170 degree and is unequal mutually;
The angle of said several guide vane inlet angles (β) lays respectively between the 0-90 degree and is unequal mutually;
The angle of said several guide vane exit angle (γ) lays respectively between the 0-90 degree and is unequal mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100720605A CN102606233A (en) | 2012-03-19 | 2012-03-19 | Variable-section spiral case with blade nozzle ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100720605A CN102606233A (en) | 2012-03-19 | 2012-03-19 | Variable-section spiral case with blade nozzle ring |
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| CN102606233A true CN102606233A (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100720605A Pending CN102606233A (en) | 2012-03-19 | 2012-03-19 | Variable-section spiral case with blade nozzle ring |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014492A (en) * | 2015-02-05 | 2016-10-12 | 霍尼韦尔国际公司 | Variable geometry nozzle for partitioned volute |
| CN107041173A (en) * | 2017-03-16 | 2017-08-15 | 新疆农垦科学院 | What a kind of residual film collecting box and the device were constituted broadcasts preceding incomplete film-recovering machine |
| CN109862925A (en) * | 2016-10-28 | 2019-06-07 | 心脏器械股份有限公司 | Single-piece spiral case |
| CN112746980A (en) * | 2020-12-31 | 2021-05-04 | 深圳市银星智能科技股份有限公司 | Fan subassembly and cleaning machines people |
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| US2861774A (en) * | 1950-02-16 | 1958-11-25 | Alfred J Buchi | Inlet control for radial flow turbines |
| US4799856A (en) * | 1986-09-17 | 1989-01-24 | Mitsubishi Jukogyo Kabushiki Kaisha | Variable capacity radial flow turbine |
| JPH059506A (en) * | 1991-01-24 | 1993-01-19 | Mitsubishi Materials Corp | Powder forging method for aluminum alloy |
| US5454225A (en) * | 1993-09-09 | 1995-10-03 | Mercedes-Benz A.G. | Exhaust gas turbocharger for an internal combustion engine |
| CN101113678A (en) * | 2007-07-31 | 2008-01-30 | 孙敏超 | Outlet flowing intersecting surface changing adjustable turbo nozzle ring |
| CN101349172A (en) * | 2007-07-20 | 2009-01-21 | 周彦学 | Variable section worm wheel pressure booster |
| US20090136338A1 (en) * | 2007-11-26 | 2009-05-28 | Jochen Laubender | Turbocharger with at least one variable turbine geometry turbine |
| CN201301731Y (en) * | 2008-12-04 | 2009-09-02 | 重庆江增机械有限公司 | Turbo-charger with rotary nozzle ring |
| CN102094704A (en) * | 2011-01-27 | 2011-06-15 | 康跃科技股份有限公司 | Multi-nozzle type variable flow rate supercharging device |
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2012
- 2012-03-19 CN CN2012100720605A patent/CN102606233A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US2861774A (en) * | 1950-02-16 | 1958-11-25 | Alfred J Buchi | Inlet control for radial flow turbines |
| US4799856A (en) * | 1986-09-17 | 1989-01-24 | Mitsubishi Jukogyo Kabushiki Kaisha | Variable capacity radial flow turbine |
| JPH059506A (en) * | 1991-01-24 | 1993-01-19 | Mitsubishi Materials Corp | Powder forging method for aluminum alloy |
| US5454225A (en) * | 1993-09-09 | 1995-10-03 | Mercedes-Benz A.G. | Exhaust gas turbocharger for an internal combustion engine |
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| CN102094704A (en) * | 2011-01-27 | 2011-06-15 | 康跃科技股份有限公司 | Multi-nozzle type variable flow rate supercharging device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014492A (en) * | 2015-02-05 | 2016-10-12 | 霍尼韦尔国际公司 | Variable geometry nozzle for partitioned volute |
| CN106014492B (en) * | 2015-02-05 | 2021-04-23 | 盖瑞特交通一公司 | Variable geometry nozzle for a partitioned volute |
| CN109862925A (en) * | 2016-10-28 | 2019-06-07 | 心脏器械股份有限公司 | Single-piece spiral case |
| CN109862925B (en) * | 2016-10-28 | 2021-09-24 | 心脏器械股份有限公司 | Single piece volute |
| CN107041173A (en) * | 2017-03-16 | 2017-08-15 | 新疆农垦科学院 | What a kind of residual film collecting box and the device were constituted broadcasts preceding incomplete film-recovering machine |
| CN112746980A (en) * | 2020-12-31 | 2021-05-04 | 深圳市银星智能科技股份有限公司 | Fan subassembly and cleaning machines people |
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Application publication date: 20120725 |