CN106437880B - Whirlpool end structure for turbocharger - Google Patents
Whirlpool end structure for turbocharger Download PDFInfo
- Publication number
- CN106437880B CN106437880B CN201610780833.3A CN201610780833A CN106437880B CN 106437880 B CN106437880 B CN 106437880B CN 201610780833 A CN201610780833 A CN 201610780833A CN 106437880 B CN106437880 B CN 106437880B
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- CN
- China
- Prior art keywords
- volute
- turbocharger
- bypass
- blanking cover
- pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/16—Control of the pumps by bypassing charging air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/16—Control of the pumps by bypassing charging air
- F02B37/162—Control of the pumps by bypassing charging air by bypassing, e.g. partially, intake air from pump inlet to pump outlet
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Supercharger (AREA)
Abstract
The present invention relates to a kind of whirlpool end structure for turbocharger, the volute of whirlpool end structure is provided with turbine inlet passage, turbine exhaust outlet, volute air exit and the pipeline for being used to connect enmgine exhaust；Volute bypass gas passage is provided between the turbine inlet passage and pipeline, bypass valve system is provided with volute bypass gas passage.The present invention is using volute and pipeline integrated design behind whirlpool, and solves the problems, such as the by-passing valve system integration difficulty of integrated volute, the space requirement of booster is optimized, the gas exported additionally by outside commutator segment to supercharger volute carries out rectification, improves the overall performance of supercharger systems.The whirlpool end structure of the present invention is applied to the application for having particular determination to turbocharger space, including but not limited to two-stage turbocharger.
Description
Technical field
It is especially a kind of by traditional turbocharger whirlpool the present invention relates to a kind of whirlpool end structure for turbocharger
Pipeline carries out the whirlpool end structure of integration after shell and whirlpool, suitable for there is the application of particular determination to turbocharger space,
Including but not limited to two-stage turbocharger.
Background technology
With the renewal of engine technology, its requirement more and more higher to turbocharger, turbocharging is on the one hand required
The space that device takes is small, on the other hand requires that turbocharger has superior performance.
In some special turbocharger applications, it is desirable to which waste gas outlet realizes steering in less space, tradition
Worm gear pressurizing unit scroll outlet reconnect whirlpool after the mode of pipeline just there are some shortcomings, as system parts quantity is more,
It is required that engine installing space it is larger, there is more pipeline gas leakage risk.In order to pursue overall compact system arrangement, lead to
Cross integrally casting pipeline behind whirlpool is integrated on volute, whole supercharger systems is needed for the space on turbocharger axis direction
Ask smaller, in face of increasingly diversified space requirement, such structure has certain advantage.
In addition, contemporary turbocharger mostly has bypass system, the portion gas for entering volute import can be carried out
Part bypasses, to have the function that anti-hypervelocity, reduce pumping loss, optimization booster acting.But for as described above one
Body volute, its exporting features are mostly bend pipe, and bypass valve system can not be installed by traditional scroll outlet, so bypass
Difficult point be present in the integrated of system.On the other hand, because space is smaller, gas and the supercharger volute of supercharger volute outlet bypass
The mixing of gas is also more intractable.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, there is provided is tied at a kind of whirlpool end for turbocharger
Structure, solves that traditional volute space hold is big, and by-passing valve integrates the problem of difficult, and by outside commutator segment to booster whirlpool
The gas of shell outlet carries out rectification, improves the overall performance of supercharger systems.
According to technical scheme provided by the invention, a kind of whirlpool end structure for turbocharger, including volute, its feature
It is：The volute is provided with the turbine inlet passage for being used to connect enmgine exhaust, turbine exhaust exports, volute is vented out
Mouth and pipeline, the both ends of pipeline connect turbine exhaust outlet and volute air exit respectively；The turbine inlet leads to
Volute bypass gas passage is provided between road and pipeline, bypass valve system is provided with volute bypass gas passage；The whirlpool
Shell and pipeline are monoblock cast structure.
Further, the turbine exhaust outlet is set with volute air exit in angle.
Further, the turbine exhaust outlet is set with volute air exit in 90 ° of angles.
Further, the bypass valve system includes being arranged on volute bypass gas passage and turbine inlet passage connectivity part
By-passing valve valve opening, and the bypass valve body being engaged with by-passing valve valve opening.
Further, the volute bypass gas passage is provided with volute blanking cover hole, and volute blanking cover hole passes through blanking cover rectification
Piece seals.
Further, the blanking cover commutator segment includes blanking cover and commutator segment, and blanking cover coordinates with volute blanking cover hole；The rectification
Piece is arranged on inside volute bypass gas passage, including outer wall and inwall, and outer wall flushes with volute air exit wall.
The present invention has advantages below：
（1）On the premise of the advantage that pipeline integrated belt after making full use of volute and whirlpool comes（Including between reduction volute
Connector and stand under load sealing surface, overall compact space arrangement）, ensure that the Performance And Reliability of supercharger systems.
（2）Volute blanking cover hole on volute integrated pipeline may be designed as incline structure, can not only meet supercharger volute
The machining of by-passing valve valve opening, moreover it is possible to meet the installation of supercharger volute bypass valve system to greatest extent, particularly when valve body knot
In the case that structure is longer, solve the problems, such as well because the bypass valve system installation difficulty that Integration Design is brought.
（3）Blanking cover commutator segment is monoblock cast structure, can also be integrally formed by mach mode, its blanking cover can lead to
The mode for crossing line or face contact forms sealing structure with volute blanking cover hole, and ties both by bolt, welding or punching press
Close, can not only coordinate with supercharger volute blanking cover mouth and play a part of the sealing of whirlpool end, moreover it is possible to by commutator segment thereon to increasing
Gas after depressor turbine carries out rectification, can also be by whole in addition to the gas after ensureing booster turbine can efficiently circulate
The change of flow shape improves the flowing gas state of turbine gas outlet, optimizes the incidence angle of turbocharger bypass air-flow so as to changing
The admixture of kind bypass flow and turbine outlet gas, to reduce the flow losses of gas so that turbocharger bypass gas
More uniform, reduction circulation loss is mixed with supercharger volute exit gas, improves the overall performance of supercharger systems.
Brief description of the drawings
Fig. 1 is the structural representation of volute of the present invention.
Fig. 2 is the structural representation of volute of the present invention（Without blanking cover commutator segment and bypass valve body）.
Fig. 3 is the structural representation of volute of the present invention（Without blanking cover commutator segment）.
Fig. 4, Fig. 5, Fig. 6 are the sectional view of volute of the present invention.
Fig. 7, Fig. 8 are the structural representation of blanking cover commutator segment of the present invention.
Embodiment
With reference to specific accompanying drawing, the invention will be further described.
As Figure 1-Figure 8：The whirlpool end structure for turbocharger include volute 11, turbine inlet passage 110,
Volute bypass gas passage 111, turbine exhaust outlet 112, volute air exit 113, pipeline 114, volute blanking cover hole 11-
1st, by-passing valve valve opening 11-2, bypass valve system 3, bypass valve body 31, blanking cover commutator segment 41, commutator segment 41-1, outer wall 41-2, stifled
Cover 41-4, inwall 41-5 etc..
As shown in figure 1, the whirlpool end structure stated for turbocharger of the present invention, including volute 11, volute 11 are overall
Cast structure；
As shown in Fig. 2-Fig. 6, the volute 11 is provided with the turbine inlet passage for being used for connecting enmgine exhaust
110th, turbine exhaust outlet 112, volute air exit 113 and pipeline 114, the both ends of pipeline 114 connect whirlpool respectively
Take turns air exit 112 and volute air exit 113；
As shown in Fig. 5-Fig. 6, lead between the turbine inlet passage 110 and pipeline 114 provided with volute bypass gases
Road 111, volute bypass gas passage 111 is interior to be provided with bypass valve system 3, and the bypass valve system 3 bypasses including being arranged on volute
Gas passage 111 and the by-passing valve valve opening 11-2 of the connectivity part of turbine inlet passage 110, and be engaged with by-passing valve valve opening 11-2
Bypass valve body 31；
As shown in figs 2-4, the volute bypass gas passage 111 is provided with volute blanking cover hole 11-1, volute blanking cover hole
11-1 is sealed by blanking cover commutator segment 41, and it is complete valve opening 11-2 to be machined out and installed valve body 31 by volute blanking cover hole 11-1
Into the assembling installation of bypass valve system 3, the volute blanking cover hole 11-1 can be designed to chamfered structure, in order to meet longer valve
The installation of body structure；Blanking cover commutator segment 41 can be finally completed turbine case assembly by bolt, punching press or the technique of welding
Assembling；
As shown in fig. 7, the blanking cover commutator segment 41 includes blanking cover 41-4 and commutator segment 41-1, blanking cover commutator segment 41 is mostly one
Body is cast, and can also be formed by machining；Blanking cover 41-4 and volute blanking cover hole 11-1 coordinates, and realizes the effect of sealing, and
The influence that the high temperature and high pressure gas in volute are brought can be born；Commutator segment 41-1 is arranged in volute bypass gas passage 111
Portion, including outer wall 41-2 and inwall 41-5, outer wall 41-2 are used to improve the flow regime that turbine exhaust exports 112 gases, outer wall
41-2 flushes with the wall of volute air exit 113, volute bypass gas passage 111 is not stretched out, as far as possible by reducing assembly building
Gap and improvement commutator segment outer wall 41-2 shapes carry out rectification；Commutator segment inwall 41-5 is used to improve volute bypass gas passage 111
Flowing gas state, can control bypass gases relative to the incident angle of gas in pipeline 114, reduce gas as far as possible
Mutual influence.
Specifically, when bypassing the closing of valve system 3, engine exhaust enters volute inlet channel 110 by exhaust manifold,
After driving turbine rotation, 112 are exported through turbine exhaust, it is only seldom or without gas in the presence of commutator segment outer wall 41-2
Body enters volute bypass gas passage 111 and forms turbulent flow, brings energy loss；When bypassing the opening of valve system 3, engine exhaust
Part is directly entered volute bypass gas passage 111 by by-passing valve valve opening 11-2, in the presence of commutator segment inwall 41-5, whirlpool
Gas in shell bypass gas passage 111 is exported in 112 with stable flow regime, less incidence angle and booster turbine
Gas meets, and is mixed in pipeline 114, is discharged by supercharger volute air exit 113.
The operation principle and the course of work of the present invention：By the way that pipeline behind whirlpool is integrated in into the outlet of volute 11 to reduce booster
Overall dimensions needed for installation, and the reliability of engine is improved to a certain extent.In order to further improve booster whirlpool
The flow regime of the gas of shell air exit 113 and solve the problems, such as bypass the processing and installation of valve system 3, by volute 11
The dress for opening up a volute blanking cover hole 11-1 chamfer to complete volute by-passing valve valve opening 11-2 processing and bypass valve system 3
Match somebody with somebody；Coordinated using blanking cover commutator segment 41 and volute blanking cover hole 11-1 and play necessary sealing function, and using integrated whole
Flow 41-1 completes the rectified action to the gas in pipeline 114 and by-passing valve gas passage 111, and makes booster whirlpool
Gas in shell air exit 113 is as uniformly effective as possible, reduces turbulent flow and gas collides the energy loss brought, improve and increase
The whole efficiency of depressor.
Specifically, due to being communicated with turbine air-intake 110 and scroll outlet 113 on the housing of supercharger turbo shell 11
Gas flow, and the bypass valve system for controlling gas flow in gas passage 110 is installed on turbine inlet passage 110
3, when engine is under low speed and part middling speed low load applications operating mode, described bypass valve system 3 is closed, engine exhaust
Waste gas in manifold is directly through turbine, driving turbine rotation, so as to drive turbocharger compressor to work so that engine exists
The needs of enough air inflows are to meet moment of torsion and acceleration can be obtained during the slow-speed of revolution；
When engine speed raises, the outlet pressure of turbocharger compressor has reached default limit value, now by-passing valve system
System 3 is opened, and because turbine expansion does work, pressure is higher than pressure after turbine before turbine, the exhaust gas section meeting of now engine discharge
Directly converged by volute bypass gas passage 111 with gas in the turbine exhaust mouth 112, flow through booster pipeline
114 discharges, now only some gas stream drives turbocharger compressor work, drop through booster turbine, driving turbine rotation
Gas pressure in low inlet channel 110, had both met the air inlet demand of high speed, and had reduced engine system again and starting
Pumping loss during machine high speed.
Claims (4)
1. a kind of whirlpool end structure for turbocharger, including volute（11）, it is characterized in that：The volute（11）It is provided with and uses
In the turbine inlet passage of connection enmgine exhaust（110）, turbine exhaust outlet（112）, volute air exit（113）With
Pipeline（114）, pipeline（114）Both ends connect respectively turbine exhaust outlet（112）With volute air exit
（113）；The turbine inlet passage（110）And pipeline（114）Between be provided with volute bypass gas passage（111）, volute
Bypass gas passage（111）It is interior to be provided with bypass valve system（3）；The volute（11）And pipeline（114）For monoblock cast knot
Structure；
The volute bypass gas passage（111）It is provided with volute blanking cover hole（11-1）, volute blanking cover hole（11-1）Pass through blanking cover
Commutator segment（41）Sealing；
The blanking cover commutator segment（41）Including blanking cover（41-4）And commutator segment（41-1）, blanking cover（41-4）With volute blanking cover hole（11-
1）Coordinate；The commutator segment（41-1）It is arranged on volute bypass gas passage（111）Inside, including outer wall（41-2）And inwall
（41-5）, outer wall（41-2）With volute air exit（113）Wall flushes.
2. it is used for the whirlpool end structure of turbocharger as claimed in claim 1, it is characterized in that：The turbine exhaust outlet
（112）With volute air exit（113）Set in angle.
3. it is used for the whirlpool end structure of turbocharger as claimed in claim 2, it is characterized in that：The turbine exhaust outlet
（112）With volute air exit（113）Set in 90 ° of angles.
4. it is used for the whirlpool end structure of turbocharger as claimed in claim 1, it is characterized in that：The bypass valve system（3）Bag
Include and be arranged on volute bypass gas passage（111）With turbine inlet passage（110）The by-passing valve valve opening of connectivity part（11-2）, and
With by-passing valve valve opening（11-2）The bypass valve body being engaged（31）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610780833.3A CN106437880B (en) | 2016-08-31 | 2016-08-31 | Whirlpool end structure for turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610780833.3A CN106437880B (en) | 2016-08-31 | 2016-08-31 | Whirlpool end structure for turbocharger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106437880A CN106437880A (en) | 2017-02-22 |
| CN106437880B true CN106437880B (en) | 2018-03-02 |
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ID=58091821
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610780833.3A Active CN106437880B (en) | 2016-08-31 | 2016-08-31 | Whirlpool end structure for turbocharger |
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| Country | Link |
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| CN (1) | CN106437880B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111691967A (en) * | 2019-03-13 | 2020-09-22 | 上海汽车集团股份有限公司 | Two-stage supercharger and engine |
| CN111963338B (en) * | 2020-08-11 | 2022-08-12 | 西安航天动力研究所 | Flow guiding device of gas branch pipeline |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006060907A1 (en) * | 2006-12-20 | 2008-06-26 | Mp-Engineering Gmbh | Turbocharger has controlling unit that has rotary rolling slider that is supported in turbine housing, which has cross opening that is based on longitudinal axis, and is excentricaly arranged for longitudinal axis |
| CN201443420U (en) * | 2009-07-03 | 2010-04-28 | 寿光市康跃增压器有限公司 | Turbo-charger double-layer runner variable-cross section turbine |
| US9322327B2 (en) * | 2009-11-03 | 2016-04-26 | Honeywell International Inc. | Turbocharger with bypass valve providing complete bypass of the turbine for improved catalyst light-off |
| CN101985897A (en) * | 2010-09-14 | 2011-03-16 | 康跃科技股份有限公司 | Complex turbine device with variable section |
| CN201826907U (en) * | 2010-11-03 | 2011-05-11 | 康跃科技股份有限公司 | Double-channel deflation device of double-runner turbocharger |
| CN103590892A (en) * | 2013-11-08 | 2014-02-19 | 汉美综合科技（常州）有限公司 | Vortex type volute outlet and air valve valve rod type bypass actuator assembly |
| DE102014106517A1 (en) * | 2014-05-09 | 2015-11-12 | Pierburg Gmbh | Exhaust gas turbocharger with a wastegate valve |
| CN206158805U (en) * | 2016-08-31 | 2017-05-10 | 无锡康明斯涡轮增压技术有限公司 | A whirlpool end structure for turbo charger |
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2016
- 2016-08-31 CN CN201610780833.3A patent/CN106437880B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106437880A (en) | 2017-02-22 |
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