CN101769178A - Bypass intake variable-area turbine unit - Google Patents
Bypass intake variable-area turbine unit Download PDFInfo
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- CN101769178A CN101769178A CN200910221076A CN200910221076A CN101769178A CN 101769178 A CN101769178 A CN 101769178A CN 200910221076 A CN200910221076 A CN 200910221076A CN 200910221076 A CN200910221076 A CN 200910221076A CN 101769178 A CN101769178 A CN 101769178A
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- bypass
- air inlet
- flow channel
- volute
- bypass flow
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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 bypass intake variable-area turbine unit, which comprises a turbine shell. A turbine shell intake main runner is arranged in the turbine shell and is provided with a turbine shell intake. A bypass intake runner is arranged on one side of the turbine shell intake main runner. A partition wall is arranged between the bypass intake runner and the turbine shell intake main runner. The turbine shell intake main runner is communicated with the bypass intake runner at a position close to the partition wall and far away from the end part of the turbine shell intake. A bypass runner intake is arranged on the partition wall. An air release valve is installed on the bypass runner intake. The invention can effectively ensure that a common turbine can satisfy the pressure increase requirement of an engine under all working conditions and has no the hazards of potential reliability, which exist in rotary vane type and axial moving type variable-area turbochargers and the product is simple and reliable. On the premise that the overall structure of the turbocharger is not greatly changed, the cost is close to the cost of a common bypass turbocharger and the realization is easy.
Description
Technical field
The present invention relates to a kind of variable cross section exhaust-gas turbocharger, relate to a kind of bypass intake variable-area turbine unit specifically, belong to field of internal combustion engine with bypass air inlet runner.
Background technique
In China; enforcement along with state III Abgasgesetz; people are more and more stronger for the demand of the engine supercharger that can take into account the high low-speed performance of motor; traditional exhaust-gas turbocharger adopts the turbine case device of constant cross-section; can only take into account a certain section applying working condition of motor; adopt the mode of waste gas venting to carry out rough adjusting in other operating modes, arrived the purpose of protection pressurized machine.Such regulative mode has no idea to satisfy the demand of people to high-performance, low emission level engine.Under this technical background, variable-area turbocharger becomes the research and development emphasis of domestic and international scientific research institution and enterprise, has generally adopted turbine interior to increase the structure of the nozzle vane that rotates and axially change the requirement that the diffusion flow passage structure satisfies variable cross section at present.But the variable section turbocharger of the type is because exist complicated adjusting mechanism, increased spatial requirement, simultaneously under hot environment, high-temperature exhaust air has all proposed strict more requirement for the nozzle vane that rotates, driving mechanism, axial motion parts etc., reliability has become the lethal factor of the type turbosupercharger, in order to promote product reliability, certainly lead to higher cost of material and processing and assembling cost, marketing pressure is big, reliability index is poor, can't satisfy following low-cost popularization demand.
Therefore, wish a kind of variable geometry turbocharger turbine plant of design, satisfying on the basis of motor to variable cross section booster performance demand, utilize the simplest controlling device, under the prerequisite that does not change turbocharger bearing system, by design,, solve the demand of motor to high reliability, low-cost variable-area turbocharger with simply, reliably, control mode changes the liquid form of the high-temperature gas that enters turbine rotor cheaply to the turbine case air inlet runner.
Summary of the invention
Problem to be solved by this invention is the narrow limitation at conventional variable cross section turbosupercharger, a kind of bypass intake variable-area turbine unit with bypass air inlet ability is provided, can effectively solve the use defective of traditional pressurized machine constant cross-section pressurized machine and exhaust gas bypass pressurized machine, reduce the complicated adjusting structure of rotary vane type and axial motion type variable-area turbocharger simultaneously, realize the function of variable-area turbocharger.
In order to address the above problem, the present invention by the following technical solutions:
A kind of bypass intake variable-area turbine unit, comprise turbine case, be provided with volute air inlet sprue in the turbine case, volute air inlet sprue has the volute suction port, it is characterized in that: a side of described volute air inlet sprue is provided with the bypass air inlet runner, be provided with spacing wall between bypass air inlet runner and the volute air inlet sprue, described volute air inlet sprue and bypass air inlet runner are being communicated with near the end position of spacing wall away from the volute suction port, described spacing wall is provided with the bypass flow channel suction port, and the venting valve is installed on the bypass flow channel suction port.
Below be further improvement of these options of the present invention:
Described bypass air inlet runner has the bypass flow channel control room near the position of bypass flow channel suction port, and described venting valve is positioned at the bypass flow channel control room and is connected with Intaker controller.
Further improve:
Described venting valve is provided with venting valve fitting surface, and described bypass flow channel suction port is provided with the bypass flow channel suction port flanged surface that cooperates with the valve fitting surface of exitting.
Described bypass flow channel control room is provided with the control room upper end cap, with the processing of realization bypass flow channel volute suction port flanged surface with to the spacing of valve of exitting.
Further improve:
Described Intaker controller comprises the control final controlling element that is arranged on the turbine case outside, described control final controlling element is in transmission connection by valve driving pin sheet and venting valve, described venting valve and valve driving pin sheet are by welding or being riveted into one, axle sleeve center, promotion lower edge at the control final controlling element is rotated, to realize the opening and closing of venting valve fitting surface, by control to venting valve counterface aperture, control from volute bypass flow channel suction port and enter gas flow and gas pressure in the volute air inlet bypass flow channel, to realize the function of variable-area turbine.
Further improve:
During the venting valve opening, the angle that forms between venting valve fitting surface and the bypass flow channel suction port flanged surface is the bypass flow channel opening angle, and for reducing the gas flow loss, outer flow passage opening angle value is the 0-60 degree.
Further improve:
The bypass air inlet runner is gradually-reducing shape, and the bypass air inlet runner that the bypass air inlet runner is connected with the bypass flow channel control room connects end cross-sectional for circular, to reduce the bypass gases flow losses.
Further improve:
The exit position of described bypass air inlet runner has bypass flow channel air inlet aditus laryngis, and the exit position of volute air inlet sprue has volute flow passage air inlet aditus laryngis, and described bypass flow channel air inlet aditus laryngis position is concordant or lag behind volute flow passage air inlet aditus laryngis.
After the bypass air inlet runner is by the venting valve open, the waste gas that motor is discharged enters the bypass air inlet runner by the bypass suction port, regulate cut-out governing by bypass then and enter the flow and the flow direction of the gas of volute air inlet runner, thereby better control the sectional area of turbine case.
Further improve:
End position near bypass flow channel air inlet aditus laryngis on the described spacing wall is connected with bypass adjusting nozzle vane.
Bypass is regulated nozzle vane and is rotationally connected by bypass adjusting nozzle running shaft and spacing wall, bypass is regulated nozzle vane and is rotated by regulating the nozzle running shaft along bypass, regulate the size in bypass flow channel cross section, produce different bypass and regulate flow direction, mix with gas in the volute air inlet sprue then, the circulation area of more careful adjustment volute has played the effect of variable cross section.
The present invention has effectively solved the reliability and the higher cost problem of the adjusting part of variable-area turbocharger, has realized the control to the turbo machine of the turbosupercharger of routine.Adopt the mode that increases the bypass air inlet, regulate and formed different passage sections, effectively regulate volute zero degree nozzle area.Bypass intake variable-area turbine unit in this invention has made full use of conventional turbocharger arrangement, guarantee that the motor connecting pipeline is constant, undertake under the prerequisite that remains unchanged, by simple control valve, realized making up and changed the long-pending purpose of turbine section by bypass flow channel.
To sum up, adopt bypass intake variable-area turbine unit can guarantee effectively that common turbo machine satisfies the boost demand of the full operating mode scope of motor, the reliability hidden danger that does not have simultaneously rotary vane type and axial motion type variable-area turbocharger, product is simple, reliable.Big variation does not take place in the supercharger integrated structure of the type, and cost and common by-pass structure pressurized machine are close, realizes easily.
Below in conjunction with drawings and Examples patent of the present invention is further described:
Description of drawings
Accompanying drawing 2 is structural representations of control gear opening state in the bypass intake variable-area turbine unit in the embodiment of the invention 1;
Accompanying drawing 3 be in the embodiment of the invention 2 in the bypass intake variable-area turbine unit bypass regulate the structural representation of nozzle closed condition;
Accompanying drawing 4 be in the embodiment of the invention 2 in the bypass intake variable-area turbine unit bypass regulate the structural representation of nozzle opening state.
Among the figure: the 1-turbine case; 2-bypass air inlet runner; 3-bypass air inlet runner connects the end; 4-bypass flow channel control room; The 5-valve of exitting; 6-valve driving pin sheet; 7-control room upper end cap; The 8-axle sleeve; 9-bypass flow channel suction port flanged surface; 10-volute suction port; 11-venting valve fitting surface; 12-bypass flow channel suction port; 13-volute air inlet runner flow direction; 14-bypass flow channel air inlet aditus laryngis; 15-volute flow passage air inlet aditus laryngis; The 16-spacing wall; 17-controls final controlling element; 19-volute bypass flow channel flow direction; The 20-bypass is regulated the nozzle running shaft; The 21-bypass is regulated nozzle vane; The 22-bypass is regulated flow direction; 23-volute air inlet sprue; α-volute air inlet angle; β-bypass flow channel opening angle.
Embodiment
Intaker controller comprises the venting valve 5 that is installed in bypass flow channel suction port 12 places and controls the control final controlling element 17 that venting valve 5 is opened or closed, venting valve 5 is in transmission connection by valve driving pin sheet 6 and control final controlling element 17, venting valve 5 and valve driving pin sheet 6 are by welding or be riveted on one, and venting valve 5 can be by being installed in rotation in the axle sleeve 8 on the turbine shroud.
In order to reduce the gas flow loss that enters bypass air inlet runner 2 from bypass flow channel suction port 12, volute air inlet angle α is an acute angle.
When bypass flow channel opening angle β is 0 when spending, the engine exhaust that enters from volute suction port 10 only transmits along volute air inlet runner flow direction 13, as shown in Figure 2, when bypass flow channel opening angle β when spending greater than 0, engine exhaust will flow simultaneously along volute air inlet runner flow direction 13 and volute bypass flow channel flow direction 19, the gas that flows along volute bypass flow channel flow direction 19 crosses at the end and the volute air inlet runner 12 of bypass air inlet runner 2, the exit position of bypass air inlet runner 2 is provided with bypass flow channel air inlet aditus laryngis 14, the exit position of volute air inlet sprue 23 is provided with volute flow passage air inlet aditus laryngis 15, and bypass flow channel air inlet aditus laryngis 14 positions are concordant or lag behind volute flow passage air inlet aditus laryngis 15.
Gas in the bypass air inlet runner 2 compiles after volute flow passage air inlet aditus laryngis 15, thereby has changed the circulation area of original volute, has played the effect of variable cross section.
The top in bypass flow channel control room 4 is provided with control room upper end cap 7, realizes the sealing function to bypass flow channel control room 4.When bypass flow channel opening angle β reached outer flow passage peak rate of flow setting value, the top of venting valve 5 contacted with control room upper end cap 7, thereby restriction bypass flow channel opening angle β continues to increase, and restriction enters the exhaust gas flow in the bypass flow channel control room 4.
Bypass air inlet runner 2 is gradually-reducing shape, and in order to guarantee the air-flow smooth transition, the bypass air inlet runner that is connected with bypass flow channel control room 4 connects end 3 and is circular transition between bypass flow channel control room 4 and the bypass air inlet runner 2.
Patent of the present invention has been finished bypass intake variable-area turbine unit exploitation in the variable-area turbine at the needs of following turbosupercharger to variable-area turbine, effectively utilizes the mode of bypass air inlet to control the exhaust energy that enters in the turbine case.This invention control is simple, reliable, does not have complicated transmission control device, improves on the basis of conventional turbine pressurized machine and realizes.
Embodiment 2, as shown in Figure 3, a kind of bypass intake variable-area turbine unit, comprise turbine case 1, be provided with volute air inlet sprue 23 in the turbine case 1, volute air inlet sprue 23 has volute suction port 10, and a side of described volute air inlet sprue 23 is provided with bypass air inlet runner 2, be provided with spacing wall 16 between bypass air inlet runner 2 and the volute air inlet sprue 23, described volute air inlet sprue 23 and bypass air inlet runner 2 are being communicated with near the end position of spacing wall 16 away from volute suction port 10.
The high-temp waste gas of discharging from motor directly enters volute air inlet sprue 23 then along circumferentially providing power to turbine rotor along volute suction port 10, formed volute air inlet runner flow direction 13, described spacing wall 16 is provided with bypass flow channel suction port 12, and venting valve 5 is installed on bypass flow channel suction port 12.Bypass air inlet runner 2 is provided with bypass flow channel control room 4 near the position of bypass flow channel suction port 12, and venting valve 5 is positioned at bypass flow channel control room 4 and is connected with Intaker controller.
Intaker controller comprises the venting valve 5 that is installed in bypass flow channel suction port 12 places and controls the control final controlling element 17 that venting valve 5 is opened or closed, venting valve 5 is in transmission connection by valve driving pin sheet 6 and control final controlling element 17, venting valve 5 and valve driving pin sheet 6 are by welding or be riveted on one, and venting valve 5 can be by being installed in rotation in the axle sleeve 8 on the turbine shroud.
In order to reduce the gas flow loss that enters bypass air inlet runner 2 from bypass flow channel suction port 12, volute air inlet angle α is an acute angle.
End position near bypass flow channel air inlet aditus laryngis 14 on the spacing wall 16 is connected with bypass adjusting nozzle vane 21, bypass is regulated nozzle vane 21 and is rotationally connected with spacing wall 16 by bypass adjusting nozzle running shaft 20, bypass is regulated nozzle vane 21 and is rotated by regulating nozzle running shaft 20 along bypass, regulate the size in bypass flow channel cross section, produce different bypass and regulate flow direction 22, mix with gas in the volute air inlet sprue 23 then, the circulation area of more careful adjustment volute has played the effect of variable cross section.
When bypass flow channel opening angle β is 0 when spending, the engine exhaust that enters from volute suction port 10 only transmits along volute air inlet runner flow direction 13, as shown in Figure 4, when bypass flow channel opening angle β when spending greater than 0, engine exhaust will flow simultaneously along volute air inlet runner flow direction 13 and volute bypass flow channel flow direction 19, the gas that flows along volute bypass flow channel flow direction 19 crosses at the end and the volute air inlet runner 12 of bypass air inlet runner 2, the exit position of bypass air inlet runner 2 is provided with bypass flow channel air inlet aditus laryngis 14, the exit position of volute air inlet sprue 23 is provided with volute flow passage air inlet aditus laryngis 15, and bypass flow channel air inlet aditus laryngis 14 positions are concordant or lag behind volute flow passage air inlet aditus laryngis 15.
Gas in the bypass air inlet sprue 23 compiles after volute flow passage air inlet aditus laryngis 15, thereby has changed the circulation area of original volute, has played the effect of variable cross section.
The top in bypass flow channel control room 4 is provided with control room upper end cap 7, realizes the sealing function to bypass flow channel control room 4.When bypass flow channel opening angle β reached outer flow passage peak rate of flow setting value, the top of venting valve 5 contacted with control room upper end cap 7, thereby restriction bypass flow channel opening angle β continues to increase, and restriction enters the exhaust gas flow in the bypass flow channel control room 4.
Bypass air inlet runner 2 is a gradually-reducing shape, and in order to guarantee the air-flow smooth transition, the bypass air inlet runner that is connected with bypass flow channel control room 4 connects end 3 and is circular transition between bypass flow channel control room 4 and the bypass air inlet runner 2.
Claims (8)
1. bypass intake variable-area turbine unit, comprise turbine case (1), be provided with volute air inlet sprue (23) in the turbine case (1), volute air inlet sprue (23) has volute suction port (10), it is characterized in that: a side of described volute air inlet sprue (23) is provided with bypass air inlet runner (2), be provided with spacing wall (16) between bypass air inlet runner (2) and the volute air inlet sprue (23), described volute air inlet sprue (23) and bypass air inlet runner (2) are being communicated with near the end position of spacing wall (16) away from volute suction port (10), described spacing wall (16) is provided with bypass flow channel suction port (12), and venting valve (5) is installed on bypass flow channel suction port (12).
2. bypass intake variable-area turbine unit according to claim 1, it is characterized in that: described bypass air inlet runner (2) has bypass flow channel control room (4) near the position of bypass flow channel suction port (12), and described venting valve (5) is positioned at bypass flow channel control room (4) and is connected with Intaker controller.
3. bypass intake variable-area turbine unit according to claim 2, it is characterized in that: described Intaker controller comprises the control final controlling element (17) that is arranged on turbine case (1) outside, and described control final controlling element (17) is in transmission connection by valve driving pin sheet (6) and venting valve (5).
4. bypass intake variable-area turbine unit according to claim 2, it is characterized in that: described venting valve (5) is provided with venting valve fitting surface (11), and described bypass flow channel suction port (12) is provided with the bypass flow channel suction port flanged surface (9) that cooperates with the valve fitting surface (11) of exitting.
5. bypass intake variable-area turbine unit according to claim 4, it is characterized in that: when venting valve (5) is opened, form bypass flow channel opening angle (β) between venting valve fitting surface (11) and the bypass flow channel suction port flanged surface (9), bypass flow channel opening angle (β) value is the 0-60 degree.
6. bypass intake variable-area turbine unit according to claim 5 is characterized in that: bypass air inlet runner (2) is gradually-reducing shape.
7. bypass intake variable-area turbine unit according to claim 5, it is characterized in that: the exit position of described bypass air inlet runner (2) has bypass flow channel air inlet aditus laryngis (14), the exit position of volute air inlet sprue (23) has volute flow passage air inlet aditus laryngis (15), and described bypass flow channel air inlet aditus laryngis (14) position is concordant or lag behind volute flow passage air inlet aditus laryngis (15).
8. bypass intake variable-area turbine unit according to claim 7 is characterized in that: the end position that described spacing wall (16) goes up near bypass flow channel air inlet aditus laryngis (14) is rotatably connected to bypass adjusting nozzle vane (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910221076A CN101769178A (en) | 2009-11-05 | 2009-11-05 | Bypass intake variable-area turbine unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910221076A CN101769178A (en) | 2009-11-05 | 2009-11-05 | Bypass intake variable-area turbine unit |
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| CN101769178A true CN101769178A (en) | 2010-07-07 |
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| CN200910221076A Pending CN101769178A (en) | 2009-11-05 | 2009-11-05 | Bypass intake variable-area turbine unit |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080577A (en) * | 2010-12-24 | 2011-06-01 | 康跃科技股份有限公司 | Section-variable turbine |
| CN102562185A (en) * | 2011-12-26 | 2012-07-11 | 康跃科技股份有限公司 | Two-channel variable-section volute device with flow-guiding blades |
| CN103097692A (en) * | 2010-07-30 | 2013-05-08 | 卡特彼勒公司 | Nozzled turbocharger turbine |
| CN105051349A (en) * | 2013-04-04 | 2015-11-11 | 博格华纳公司 | Exhaust-gas turbocharger |
| CN105507965A (en) * | 2013-11-14 | 2016-04-20 | 汉捷机械部件（常州）有限公司 | Operating method of variable-section three-channel volute |
| CN106368803A (en) * | 2015-07-22 | 2017-02-01 | 现代自动车株式会社 | Valve device of turbocharger |
| CN108757156A (en) * | 2018-04-10 | 2018-11-06 | 中国北方发动机研究所(天津) | A kind of by-pass structure that turbine box is novel |
| EP3508790A1 (en) * | 2018-01-08 | 2019-07-10 | United Technologies Corporation | Modulated combustor bypass and combustor bypass valve |
| CN114320578A (en) * | 2022-03-14 | 2022-04-12 | 潍柴动力股份有限公司 | Split type bypass system, control method thereof, turbocharger and engine |
| CN116398289A (en) * | 2023-05-12 | 2023-07-07 | 康跃科技(山东)有限公司 | High-efficient bypass formula turbo charger |
-
2009
- 2009-11-05 CN CN200910221076A patent/CN101769178A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103097692A (en) * | 2010-07-30 | 2013-05-08 | 卡特彼勒公司 | Nozzled turbocharger turbine |
| CN103097692B (en) * | 2010-07-30 | 2015-04-29 | 卡特彼勒公司 | Nozzled turbocharger turbine |
| CN102080577A (en) * | 2010-12-24 | 2011-06-01 | 康跃科技股份有限公司 | Section-variable turbine |
| CN102562185A (en) * | 2011-12-26 | 2012-07-11 | 康跃科技股份有限公司 | Two-channel variable-section volute device with flow-guiding blades |
| CN102562185B (en) * | 2011-12-26 | 2014-10-22 | 康跃科技股份有限公司 | Two-channel variable-section volute device with flow-guiding blades |
| CN105051349B (en) * | 2013-04-04 | 2018-10-19 | 博格华纳公司 | Exhaust turbine supercharger |
| CN105051349A (en) * | 2013-04-04 | 2015-11-11 | 博格华纳公司 | Exhaust-gas turbocharger |
| CN105507965A (en) * | 2013-11-14 | 2016-04-20 | 汉捷机械部件（常州）有限公司 | Operating method of variable-section three-channel volute |
| CN106368803A (en) * | 2015-07-22 | 2017-02-01 | 现代自动车株式会社 | Valve device of turbocharger |
| CN106368803B (en) * | 2015-07-22 | 2020-01-14 | 现代自动车株式会社 | Valve device of turbocharger |
| EP3508790A1 (en) * | 2018-01-08 | 2019-07-10 | United Technologies Corporation | Modulated combustor bypass and combustor bypass valve |
| US11060463B2 (en) | 2018-01-08 | 2021-07-13 | Raytheon Technologies Corporation | Modulated combustor bypass and combustor bypass valve |
| CN108757156A (en) * | 2018-04-10 | 2018-11-06 | 中国北方发动机研究所(天津) | A kind of by-pass structure that turbine box is novel |
| CN114320578A (en) * | 2022-03-14 | 2022-04-12 | 潍柴动力股份有限公司 | Split type bypass system, control method thereof, turbocharger and engine |
| CN114320578B (en) * | 2022-03-14 | 2022-07-15 | 潍柴动力股份有限公司 | Split type bypass system, control method thereof, turbocharger and engine |
| CN116398289A (en) * | 2023-05-12 | 2023-07-07 | 康跃科技(山东)有限公司 | High-efficient bypass formula turbo charger |
| CN116398289B (en) * | 2023-05-12 | 2023-09-05 | 康跃科技(山东)有限公司 | High-efficient bypass formula turbo charger |
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