CN101598037A - Zero clearance floating regulating device with variable nozzle - Google Patents
Zero clearance floating regulating device with variable nozzle Download PDFInfo
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- CN101598037A CN101598037A CNA2009100166449A CN200910016644A CN101598037A CN 101598037 A CN101598037 A CN 101598037A CN A2009100166449 A CNA2009100166449 A CN A2009100166449A CN 200910016644 A CN200910016644 A CN 200910016644A CN 101598037 A CN101598037 A CN 101598037A
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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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- Control Of Turbines (AREA)
Abstract
The invention discloses a kind of zero clearance floating regulating device with variable nozzle, comprise turbine case, nozzle vane, described turbine case is provided with turbine case fit and floating ring, described floating ring is arranged in the turbine case fit, floating ring utilizes the airspeed before and after the nozzle vane to change the pressure difference generation axial motion that causes in the nozzle vane rotary course, by on turbine case, increasing the floating ring structure, the pressure difference of utilizing nozzle vane to form in the floating ring both sides in rotary course realizes the move left and right of floating ring, realized the nozzle vane adjusting efficient under the motor low flow rate condition, compare with the fixed gap drive mechanism that has of transmission, low velocity gas is regulated efficient and can be improved more than 5%, this apparatus structure is simple, realize easily, effect is obvious, efficiently solves the loss in efficiency problem of rotary vane type variable cross section pressurized machine in the gas flow modulation process.
Description
Technical field
The present invention relates to a kind of cut-out governing structure of variable-area turbocharger, particularly a kind of zero clearance floating regulating device with variable nozzle that adopts the rotary vane type nozzle arrangements belongs to the supercharging of internal combustion engine field.
Background technique
Variable-area turbocharger is more and more paid close attention to as the upgrading pressurized machine of reply motor state 4 above emission requests.Variable cross section pressurized machine great majority have adopted axial push pedal and two kinds of regulative modes of rotary vane type radially, and dual mode all is to make full use of the exhaust energy that motor is discharged by the air-flow path that change enters turbosupercharger under each operating mode.Pressurized machine can reach fixing rotating speed according to the needs of expection, thereby has realized entering the random adjustment of the boost pressure of motor.The regulative mode of variable-area turbocharger has been realized the matched well under the full operating mode of motor, and the reduction by the burning realization that improves engine interior discharges pollutants simultaneously, has improved fuel economy.
At present, variable-area turbocharger has mainly adopted radially rotary vane type structure, and the rotary vane type nozzle vane is distributed in the turbosupercharger periphery, realizes the variation of passage by rotation.As shown in Figure 1 and Figure 2, the nozzle vane 6 that is distributed in power turbine 7 peripheries in the turbine case 4 is changed the line of production at the drive backspin of driving mechanism 3 and is given birth to different nozzle ring aperture a1, thereby produces pressure before the different whirlpools, controls the rotational speed of pressurized machine.Under the drive of power turbine 7, compressor impeller 11 high speed rotating contract air pressure through compressor casing 1 collection, send into motor and participate in burning, and middle case 2 has been realized the effect that rotary component supports in the rotary course.Axial supporting disk counterface 10 and turbine case support end face 9 by nozzle ring supporting disk 5 retrains in nozzle vane 6 rotary courses.In order to guarantee that nozzle vane 6 can rotate flexibly, must reserve an axial preset clearance d, consider that the gap under the heating status changes, axially preset clearance d value is generally 0.05-0.2mm, because the existence in this gap, nozzle vane exterior edge face 8 is supported end face 9 with turbine case and is not come in contact, and has caused nozzle vane 6 in the course of the work, and the gas channeling decrease in efficiency is very obvious.
Traditional rotary vane type variable-area turbocharger in the adjustment process of turbine end high-temperature gas, the drawback that exists the decrease in efficiency amplitude to reach, particularly under the limited low speed operating mode of exhaust energy, axially the loss that causes of preset clearance d is even more serious.Therefore, need a kind of variable-nozzle of design zero movement clearance controlling device, eliminate this gap, improve and promote the gas constraint efficient of nozzle vane by the relative movement of controlling device.
The patent of invention content
Problem to be solved by this invention is the movement clearance that exists in the course of the work at the rotary vane type nozzle vane, a kind of zero clearance floating regulating device with variable nozzle is provided, can utilize the pressure difference that produces at former and later two end faces at floating regulating device in the nozzle angle change procedure, with floating ring " adhesion " on the end face of nozzle vane, thereby eliminate the decrease in efficiency problem that original structure causes because of there being movement clearance.
For addressing the above problem, the present invention by the following technical solutions:
A kind of zero clearance floating regulating device with variable nozzle, comprise turbine case, nozzle vane, described turbine case is provided with turbine case fit and floating ring, described floating ring is arranged in the turbine case fit, and floating ring utilizes the airspeed before and after the nozzle vane to change the pressure difference generation axial motion that causes in the nozzle vane rotary course.
Below be patent further improvement of these options of the present invention:
Described floating ring comprises floating ring internal diameter, floating ring external diameter, and the turbine case fit comprises groove internal diameter, groove external diameter and groove interior edge face, and described floating ring internal diameter matches with the groove internal diameter, and the floating ring external diameter cooperates with the groove external diameter.
As a kind of improvement:
There are enough end thrusts in the air-flow that the air-flow air inlet gap that described floating ring external diameter and groove external diameter form forms greater than floating ring internal diameter and the groove internal diameter gap of giving vent to anger with assurance.
Further improve:
Described nozzle vane has the nozzle vane exterior edge face, and nozzle vane exterior edge face and groove interior edge face realize that to floating ring axial motion is spacing.
Further improve:
Described floating ring is provided with the floating ring pivot guide slot spacing to rotating in a circumferential direction of floating ring.
Further improve:
Be provided with floating ring axial step end face on the described floating ring, increased the axial force area of contact.
The axial height of described floating ring is greater than the degree of depth of turbine case fit.
Described floating ring is provided with the axial surface of contact of floating ring, and in the little aperture of nozzle vane position, the axial surface of contact of floating ring forms the zero clearance with the nozzle vane exterior edge face and cooperates, and has improved gas flow modulation efficient.
On the axial surface of contact of floating ring, be provided with axial surface of contact anti-attrition groove, the surface friction drag when having reduced the zero clearance.
Zero clearance floating regulating device among the present invention is by increasing the floating ring structure on turbine case, the pressure difference of utilizing nozzle vane to form in the floating ring both sides in rotary course realizes the move left and right of floating ring, realized the nozzle vane adjusting efficient under the motor low flow rate condition, compare with the fixed interval (FI) drive mechanism of transmission, low velocity gas is regulated efficient and can be improved more than 5%, this apparatus structure is simple, realize easily, effect is obvious, efficiently solves the loss in efficiency problem of rotary vane type variable cross section pressurized machine in the gas flow modulation process.
To sum up, at present turbocharging technology progressively in the variable-area turbocharger transforming process, regulate part at variable cross section, effectively utilize the pressure difference that produces before and after the nozzle vane, the research and development zero clearance floating regulating device with variable nozzle can effectively improve the low-speed performance of pressurized machine.This structure can be widely used in various types of rotary vane type variable-area turbochargers as required, has the vast market promotional value, can obtain good effect.
Below in conjunction with drawings and Examples patent of the present invention is further described:
Description of drawings
Accompanying drawing 1 is the structural representation of rotary vane type variable-area turbocharger in the background technique;
Accompanying drawing 2 is structural representations of rotary vane type nozzle vane in the background technique;
Accompanying drawing 3 is structural representations of the embodiment of the invention;
Accompanying drawing 4 is schematic representation that cooperate of nozzle vane and floating ring under the little aperture of nozzle vane in the embodiment of the invention;
Accompanying drawing 5 is structural representations of routine floating ring in the invention process 1;
Accompanying drawing 6 is structural representations of floating ring in the embodiment of the invention 2;
Accompanying drawing 7 is nozzle vane structural representations in the embodiment of the invention.
Among the figure: the 1-compressor casing; The 2-middle case; The 3-driving mechanism; The 4-turbine case; 5-nozzle ring supporting disk; The 6-nozzle vane; The 7-power turbine; 8-nozzle vane exterior edge face; The 9-turbine case supports end face; 10-supporting disk counterface; The 11-compressor impeller; The 12-nozzle vane axis of guide; 13-nozzle vane axis of guide end face; 14-floating ring guiding groove interior edge face; 15-fit internal diameter; 16-fit interior edge face; 17-fit external diameter; 18-turbine case fit; 19-floating ring axial step end face; The axial surface of contact of 20-floating ring; 21-floating ring pivot guide slot; 22-floating ring internal diameter; 23-circumferentially limits end face; 24-radially limits end face; 25-floating ring external diameter; The axial surface of contact anti-attrition of 26-floating ring groove; The 27-floating ring; A1-nozzle ring aperture; B1-air-flow air inlet gap; The b2-air-flow gap of giving vent to anger; D1-end thrust gap; D2-moves axially the gap; The axial preset clearance of d-; The gap, location is reserved in the L1-zero clearance; The P1-channel pressure; P2-air inlet stagnation pressure.
Embodiment
Embodiment 1, as Fig. 3, shown in Figure 4, a kind of zero clearance floating regulating device with variable nozzle, comprise turbine case 4, nozzle vane 6, described turbine case 4 is provided with turbine case fit 18 and floating ring 27, this turbine case fit 18 is provided with fit internal diameter 15, fit external diameter 17 and fit interior edge face 16, this floating ring 27 is provided with floating ring axial step end face 19, the axial surface of contact 20 of floating ring, floating ring internal diameter 22, floating ring external diameter 25, described floating ring 27 is arranged in turbine case fit 18, when nozzle ring aperture a1 reduces, airspeed is quickened, channel pressure P1 reduces, air inlet stagnation pressure P2 is greater than channel pressure P1, under action of pressure, move axially, the axial surface of contact 20 of floating ring contacts with nozzle vane exterior edge face 8, form the zero clearance to improve gas regulation efficient, form air-flow air inlet gap b1 between described floating ring external diameter 25 and the fit external diameter 17, form the air-flow gap b2 that gives vent to anger between floating ring internal diameter 22 and the fit internal diameter 15, for guaranteeing enough end thrusts, air-flow is given vent to anger gap b2 less than air-flow air inlet gap b1, form end thrust gap d 1 between described floating ring axial step end face 19 and the fit interior edge face 16, guarantee that air inlet stagnation pressure P2 can set up fast, described floating ring 27 carries out axial motion between fit interior edge face 16 and nozzle vane exterior edge face 8, retaining shaft is to movement clearance d2, the described gap d 2 that moves axially is greater than axial preset clearance d, to guarantee reliably working.
As Fig. 5, shown in Figure 7, described floating ring 27 carries out radially rotating in the axial motion between the fit interior edge face 16 of turbine case and nozzle vane exterior edge face 8, with the resistance of reducing friction, described floating ring 27 is provided with floating ring pivot guide slot 21, described floating ring pivot guide slot 21 is by radially limiting end face 24 and circumferentially limiting end face 23 and realize that floating rings 27 rotate guiding, described floating ring guiding groove interior edge face 14 and possess and exist the zero clearance to reserve location gap L 1 between the nozzle vane axis of guide end face 13 of the guide function nozzle vane 6 top nozzle blade axis of guides 12, location gap L 1 is reserved when floating ring 27 is realized the zero clearance in described zero clearance, reserves certain wear allowance.
Embodiment 2, as shown in Figure 6, can also set up the axial surface of contact anti-attrition of floating ring groove 26 on the axial surface of contact 20 of the floating ring of the floating ring 27 among the embodiment 1, the axial surface of contact anti-attrition of described floating ring groove 26 can guarantee that floating ring 27 is radially keeping enough little area of contact, the loss of reducing friction in the rotary course.
Patent of the present invention has been finished the research and development of zero clearance floating regulating device with variable nozzle at the rotary vane type variable-area turbocharger.By effectively utilizing the pressure difference that before and after blade, produces in the nozzle vane adjustment process, promotion is arranged on the floating ring axial motion in the turbine case fit, forming floating ring cooperates with the zero clearance of nozzle vane end face, solved the end clearance loss problem of air-flow in adjustment process, the type variable-nozzle zero clearance controlling device is on original rotary vane type variable-area turbocharger basis, finish by increase groove and floating ring on turbine case, simple in structure, cost is low, and inheritance is good.
We have been described in detail invention according to the national patent method now, can discern the improvement or the replacement of specific embodiment disclosed herein for those skilled in the art.These modifications are within the spirit and scope of the present invention.
Claims (9)
1, a kind of zero clearance floating regulating device with variable nozzle, comprise turbine case (4), nozzle vane (6), it is characterized in that: described turbine case (4) is provided with turbine case fit (18) and floating ring (27), described floating ring (27) is arranged in turbine case fit (18), and floating ring (27) utilizes the airspeed before and after the nozzle vane (6) to change the pressure difference generation axial motion that causes in nozzle vane (6) rotary course.
2, zero clearance floating regulating device with variable nozzle according to claim 1, it is characterized in that: described floating ring (27) comprises floating ring internal diameter (22), floating ring external diameter (25), turbine case fit (18) comprises fit internal diameter (15), fit external diameter (17) and fit interior edge face (16), described floating ring internal diameter (22) matches with fit internal diameter (15), and floating ring external diameter (25) cooperates with fit external diameter (17).
3, zero clearance floating regulating device with variable nozzle according to claim 2 is characterized in that: the air-flow that the air-flow air inlet gap (b1) that described floating ring external diameter (25) and fit external diameter (17) form forms greater than floating ring internal diameter (22) and fit internal diameter (15) gap (b2) of giving vent to anger.
4, zero clearance floating regulating device with variable nozzle according to claim 3, it is characterized in that: described nozzle vane (6) has nozzle vane exterior edge face (8), and nozzle vane exterior edge face (8) and fit interior edge face (16) realize that to floating ring axial motion is spacing.
5, zero clearance floating regulating device with variable nozzle according to claim 4 is characterized in that: described floating ring (27) is provided with the floating ring pivot guide slot (21) spacing to rotating in a circumferential direction of floating ring.
6, zero clearance floating regulating device with variable nozzle according to claim 4 is characterized in that: (27) are provided with floating ring axial step end face (19) on the described floating ring.
7, according to claim 5 or 6 described zero clearance floating regulating device with variable nozzle, it is characterized in that: the axial height of described floating ring (27) is greater than the degree of depth of turbine case fit (18).
8, zero clearance floating regulating device with variable nozzle according to claim 1, it is characterized in that: described floating ring (27) is provided with the axial surface of contact of floating ring (20), in the little aperture of nozzle vane (6) position, the axial surface of contact of floating ring (20) forms the zero clearance with nozzle vane exterior edge face (8) and cooperates.
9, zero clearance floating regulating device with variable nozzle according to claim 8 is characterized in that: be provided with axial surface of contact anti-attrition groove (26) on the axial surface of contact of floating ring (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100166449A CN101598037B (en) | 2009-06-30 | 2009-06-30 | Zero clearance floating regulating device with variable nozzle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100166449A CN101598037B (en) | 2009-06-30 | 2009-06-30 | Zero clearance floating regulating device with variable nozzle |
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| CN101598037A true CN101598037A (en) | 2009-12-09 |
| CN101598037B CN101598037B (en) | 2011-08-31 |
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| CN2009100166449A Expired - Fee Related CN101598037B (en) | 2009-06-30 | 2009-06-30 | Zero clearance floating regulating device with variable nozzle |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102636295A (en) * | 2012-04-25 | 2012-08-15 | 合肥工业大学 | Anti-coupling air-flotation force measuring unit |
| CN102787872A (en) * | 2012-05-07 | 2012-11-21 | 康跃科技股份有限公司 | Thermal insulation device for turbine end of turbocharger |
| CN104100301A (en) * | 2013-04-02 | 2014-10-15 | 成都盛航动力设备有限公司 | Multi-stage differential pressure radial flow turbine capable of adjusting nozzle ring opening |
| CN108775261A (en) * | 2018-03-26 | 2018-11-09 | 北京理工大学 | A kind of turbocharger with radial-flow turbine nozzle ring adjustable vane structure |
| CN108884838A (en) * | 2016-01-20 | 2018-11-23 | 三菱重工发动机和增压器株式会社 | The assembly method of fixed stator blade chip rotating machinery and fixed stator blade chip rotating machinery |
| CN109322709A (en) * | 2018-09-13 | 2019-02-12 | 合肥通用机械研究院有限公司 | A kind of adjustable nozzle blade mechanism of turbo-expander |
| CN111456843A (en) * | 2020-04-27 | 2020-07-28 | 湖南天雁机械有限责任公司 | Variable cross-section turbocharger |
| CN111655987A (en) * | 2018-02-28 | 2020-09-11 | 三菱重工发动机和增压器株式会社 | Radial turbine and turbocharger |
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| DE50209912D1 (en) * | 2002-04-26 | 2007-05-24 | Borgwarner Inc | Turbocompressor with adjustable vanes |
| EP1528225B1 (en) * | 2003-10-27 | 2006-08-16 | BorgWarner Inc. | Turbomachine and production method for a stator assembly |
| US20090067996A1 (en) * | 2006-02-16 | 2009-03-12 | Borg Warner Inc. | Blade bearing ring assembly of a turbocharger with a variable turbine geometry |
| CN201448127U (en) * | 2009-06-30 | 2010-05-05 | 寿光市康跃增压器有限公司 | Variable nozzle zero clearance floating regulation device |
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2009
- 2009-06-30 CN CN2009100166449A patent/CN101598037B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636295A (en) * | 2012-04-25 | 2012-08-15 | 合肥工业大学 | Anti-coupling air-flotation force measuring unit |
| CN102636295B (en) * | 2012-04-25 | 2013-12-04 | 合肥工业大学 | Anti-coupling air-flotation force measuring unit |
| CN102787872A (en) * | 2012-05-07 | 2012-11-21 | 康跃科技股份有限公司 | Thermal insulation device for turbine end of turbocharger |
| CN104100301A (en) * | 2013-04-02 | 2014-10-15 | 成都盛航动力设备有限公司 | Multi-stage differential pressure radial flow turbine capable of adjusting nozzle ring opening |
| CN104100301B (en) * | 2013-04-02 | 2015-12-02 | 成都盛航动力设备有限公司 | The multistage differential pressure radial-flow turbine of nozzle ring aperture can be regulated |
| CN108884838A (en) * | 2016-01-20 | 2018-11-23 | 三菱重工发动机和增压器株式会社 | The assembly method of fixed stator blade chip rotating machinery and fixed stator blade chip rotating machinery |
| CN108884838B (en) * | 2016-01-20 | 2021-02-05 | 三菱重工发动机和增压器株式会社 | Fixed stationary blade type rotary machine and method for assembling fixed stationary blade type rotary machine |
| US10934867B2 (en) | 2016-01-20 | 2021-03-02 | Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | Stationary-blade-type rotating machine and method for assembling stationary-blade-type rotating machine |
| CN111655987A (en) * | 2018-02-28 | 2020-09-11 | 三菱重工发动机和增压器株式会社 | Radial turbine and turbocharger |
| CN111655987B (en) * | 2018-02-28 | 2022-05-27 | 三菱重工发动机和增压器株式会社 | Radial turbine and turbocharger |
| CN108775261A (en) * | 2018-03-26 | 2018-11-09 | 北京理工大学 | A kind of turbocharger with radial-flow turbine nozzle ring adjustable vane structure |
| CN109322709A (en) * | 2018-09-13 | 2019-02-12 | 合肥通用机械研究院有限公司 | A kind of adjustable nozzle blade mechanism of turbo-expander |
| CN109322709B (en) * | 2018-09-13 | 2021-11-12 | 合肥通用机械研究院有限公司 | Adjustable nozzle blade mechanism of turboexpander |
| CN111456843A (en) * | 2020-04-27 | 2020-07-28 | 湖南天雁机械有限责任公司 | Variable cross-section turbocharger |
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| CN101598037B (en) | 2011-08-31 |
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