CN202768140U - Two-stage turbocharging system of engine - Google Patents
Two-stage turbocharging system of engine Download PDFInfo
- Publication number
- CN202768140U CN202768140U CN2012204321154U CN201220432115U CN202768140U CN 202768140 U CN202768140 U CN 202768140U CN 2012204321154 U CN2012204321154 U CN 2012204321154U CN 201220432115 U CN201220432115 U CN 201220432115U CN 202768140 U CN202768140 U CN 202768140U
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- pressure stage
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- volute
- turbosupercharger
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- 238000005266 casting Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 27
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 235000009421 Myristica fragrans Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000001115 mace Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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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 two-stage turbocharging system of the engine comprises a high-pressure stage turbocharger (1), a low-pressure stage turbocharger (2), an interstage cooler (3) and the engine, wherein the interstage cooler (3) is arranged on a flywheel shell of the engine, the low-pressure stage turbocharger (2) is installed above an exhaust manifold (4) of the engine, the high-pressure stage turbocharger (1) is close to the low-pressure stage turbocharger (2) from the lower part, a volute of a high-pressure stage turbine (12) on the high-pressure stage turbocharger (1) is correspondingly communicated with a main pipe port of the exhaust manifold (4), and a volute of the high-pressure stage turbine (12), a volute of a low-pressure stage turbine (22) and a connecting pipeline between the two are connected into a whole. The installation space is reduced, the gas energy loss is reduced, and the popularization and the application are facilitated.
Description
Technical field
The utility model relates to a kind of two turbocharging systems, relates in particular a kind of motor two turbocharging systems, belongs to technical field of internal combustion engines.
Background technique
Current, along with the enforcement of automobile emission regulation is increasingly strict, for reaching more and more higher emission standard, engine body is at aspects such as air inlet, fuel injection, burning, mechanical efficiency, all adopt more and more optimum design, to reach Optimizing Combustion, reduce the purpose of pollutant emission.For further Optimizing Combustion, reduction pollutant emission, need to improve suction pressure, air inflow, this moment, motor can adopt the two-stage turbocharger series boosting to realize this purpose.Referring to Fig. 1, in the existing motor two turbocharging systems, Mace good fortune (maxxforce) 11L such as Na Weisida (Navistar) company, in the 13L motor two turbocharging systems, low pressure stage turbosupercharger 2 is arranged on the below of high pressure stage turbosupercharger 1, interstage cooler 3 is arranged on the exhaust side of motor, needs to seek support and fixes.During work, the waste gas that motor is discharged is after enmgine exhaust 4 enters high-pressure turbine stage 12 and expands, the connecting pipeline that passes through again 22 in high-pressure turbine stage 12 and low pressure stage turbo machine enters low pressure stage turbo machine 22 and carries out reexpansion, the connecting pipeline that high-pressure turbine stage 12 is connected with the low pressure stage turbo machine has air guide and is connected function with connection, but this connecting pipeline is longer, causes certain exhaust energy loss; Filtered air enters low pressure stage gas compressor 21, rotated the low pressure stage gas compressor 21 compression primary airs that drive by low pressure stage turbo machine 22 machines, air after compression heats up is through interstage cooler 3 coolings, entering high pressure stage gas compressor 11 compresses again again, send and enter engine intake manifold participation burning after two turbocharging systems enters the intercooler cooling, but the connecting pipeline that height is arbitrarily downgraded between turbosupercharger and the interstage cooler 3 is longer, to the gas-cooled while of two-step supercharging, also cause the loss of gas energy loss and air pressure; Simultaneously, two turbocharging systems is arranged at motor needs more space.Therefore, how to arrange that two turbocharging systems reduces the purpose of gas energy loss, space efficient to reach compact structure, make two turbocharging systems be applicable to widely most vehicle assemblings, become a major issue of facing in the two-stage turbocharger technological development.
The model utility content
The purpose of this utility model is to reduce installing space, the loss of minimizing gas energy of motor car engine two turbocharging systems, and a kind of motor two turbocharging systems is provided.
For achieving the above object, technical solution of the present utility model is: a kind of motor two turbocharging systems, comprise the high pressure stage turbosupercharger, the low pressure stage turbosupercharger, interstage cooler and motor, described interstage cooler is arranged on the flywheel casing of motor, described low pressure stage turbosupercharger is installed in the gas exhaust manifold top of motor, described high pressure stage turbosupercharger is close low pressure stage turbosupercharger from the below, and the high-pressure turbine stage volute on the high pressure stage turbosupercharger and the corresponding connection of total mouth of pipe of gas exhaust manifold, high-pressure turbine stage volute, low pressure stage turbo machine volute and connecting pipeline between the two are connected.
Described high-pressure turbine stage volute, low pressure stage turbo machine volute and connecting pipeline between the two are connected by casting.
Described low pressure stage turbo machine volute is fixed on the support, and support is installed on the enmgine exhaust.
Be provided with the waist circular apertures along Y, Z direction on the described support.
Compared with prior art, the beneficial effects of the utility model are:
1, compact structure, space efficient; Pipeline is short, reduces the gas energy loss, reduces atmospheric pressure lost.The inter-stage cooler is arranged on the flywheel casing of motor rear side in the utility model, does not need to seek extra support and fixes; Low pressure stage turbo machine volute is installed on the enmgine exhaust by support, the pipeline of so just arbitrarily downgrading between turbosupercharger and the interstage cooler reaches the shortest, the minimizing that takes up space in cooled gas, has reduced gas energy loss, atmospheric pressure lost.High-pressure turbine stage volute, low pressure stage turbo machine volute and connecting pipeline between the two are connected by casting, efficiently utilized the space, and avoid gas leakage, and effectively reducing the exhaust energy loss of just arbitrarily downgrading between the turbine, the exhaust energy that motor is discharged is fully utilized.
2, improve the reliability of system, reduced cost.High-pressure turbine stage volute, low pressure stage turbo machine volute and connecting pipeline between the two are connected by casting, reduced the number of spare parts of just arbitrarily downgrading and connecting between turbosupercharger, have still less sealing surface and link, thereby improved the reliability of system, also reduced motor two turbocharging systems cost simultaneously.
3, solved problems such as crossing location and foozle.Be provided with the waist circular apertures along Y, Z direction on the utility model optimal way medium-height trestle, the waist circular apertures of Y, Z direction is respectively two-stage turbocharger and provides adjustable space in the Y of motor system of coordinates, location and the error of Z-direction.
Description of drawings
Fig. 1 is prior art motor two turbocharging systems structure principle chart.
Fig. 2 is the utility model structure principle chart.
Fig. 3 is the utility model structural representation.
Fig. 4 is the supercharger structure schematic diagram of integrated casting.
Fig. 5 is the supporting structure schematic diagram.
Among the figure: high pressure stage turbosupercharger 1, high pressure stage gas compressor 11, high-pressure turbine stage 12, low pressure stage turbosupercharger 2, low pressure stage gas compressor 21, low pressure stage turbo machine 22, interstage cooler 3, enmgine exhaust 4, support 5, waist circular apertures 6.
Embodiment
Below in conjunction with description of drawings and embodiment the utility model is described in further detail.
Referring to Fig. 2-Fig. 5, a kind of motor two turbocharging systems, comprise high pressure stage turbosupercharger 1, low pressure stage turbosupercharger 2, interstage cooler 3 and motor, described interstage cooler 3 is arranged on the flywheel casing of motor, flywheel casing is positioned at the motor rear side, here the space is large, and is fixing simple; Described low pressure stage turbosupercharger 2 is installed in gas exhaust manifold 4 tops of motor, described high pressure stage turbosupercharger 1 is close low pressure stage turbosupercharger 2 from the below, and the corresponding connection of total mouth of pipe of 12 volutes of the high-pressure turbine stage on the high pressure stage turbosupercharger 1 and gas exhaust manifold 4, high-pressure turbine stage 12 volutes, low pressure stage turbo machine 22 volutes and connecting pipeline between the two are connected.Described high-pressure turbine stage 12 volutes, low pressure stage turbo machine 22 volutes and connecting pipeline between the two are connected by casting.With respect to existing two turbocharging systems, move after the two turbocharging systems integral body of the present utility model, two turbocharging systems does not have complete back segment at motor simultaneously, but high pressure stage turbosupercharger 1 is near the motor rear side, low pressure stage turbosupercharger 2 is near the motor stage casing, and the pipeline that height is arbitrarily downgraded between turbosupercharger and the interstage cooler 3 reaches the shortest, to the gas-cooled while of two-step supercharging, reduce the loss of gas energy, reduced the loss of air pressure.Near low pressure stage turbosupercharger 2, the air inlet of coming from car load is at the rear side of motor two turbocharging systems from the below for high pressure stage turbosupercharger 1, and this generally is placed on the operator cabin rear side with commercial car car load air filter can realize good the docking.Reduce the distance of pipeline between turbo machine, effectively utilized the space, reduced gas energy loss in pipeline, avoided gas leakage, also reduced number of spare parts and the assembly process in the final assembly.Described enmgine exhaust 4 increases a boss, and described low pressure stage turbo machine 22 volutes are fixed on the support 5, and support 5 is installed on the boss of enmgine exhaust 4.On the described support 5 along Y, the Z direction is provided with waist circular apertures 6, the Y here, the Z direction is the Y of mean engine system of coordinates, Z-direction, Z-direction is the motor vertical direction, Y direction is the engine breathing side direction, wherein Z-direction is provided with two pairs of waist circular apertures 6, Y direction is provided with two pairs of waist circular apertures 6, Y, the waist circular apertures 6 of Z direction is respectively two-stage turbocharger at the Y of motor system of coordinates, the location of Z-direction and error provide adjustable space, regulate manufacturing and the assembly error of low pressure stage turbosupercharger 2 mounting points, avoided the location; For the X-axis direction of motor system of coordinates, thereby generally can adjust the position by the chucking of the clip between turbine volute case and the middle case.
Referring to Fig. 2, Fig. 3, the corresponding connection of total mouth of pipe of high-pressure turbine stage 12 volutes on the high pressure stage turbosupercharger 1 and gas exhaust manifold 4, high-pressure turbine stage 12 volutes, low pressure stage turbo machine 22 volutes and connecting pipeline between the two are connected by casting.The air outlet of the low pressure stage gas compressor 21 of low pressure stage turbosupercharger 2 is connected with the suction port of interstage cooler 3, the air outlet of interstage cooler 3 is connected with the suction port of the high-pressure unit gas compressor 11 of high pressure stage turbosupercharger 1, the air outlet of high-pressure unit gas compressor 11 is connected with the intercooler suction port, and the air outlet of intercooler is connected with engine intake manifold.During work, vehicle engine exhaust gas enters by enmgine exhaust 4 and promotes high-pressure turbine stage 12 rotations in high-pressure turbine stage 12 spiral cases, then enters again discharge of promotion low pressure stage turbo machine 22 rotations in low pressure stage turbo machine 22 spiral cases by the connecting pipeline that is cast between integrated two turbo machines; The air of crossing filtration through air-strainer enters low pressure stage gas compressor 21 compression primary airs, air after compression heats up cools through interstage cooler 3, then enter and enter the intake manifold participation burning that enters motor after the intercooler cooling after high-pressure unit gas compressor 11 compresses again, whole process is that exhaust energy is to the transmission of compressed air energy.Two turbocharging systems in the utility model can guarantee that runner is smooth, reduces waste gas and reveals, and has reduced the gas energy loss, has efficiently utilized the space.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that implementation of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, said structure all should be considered as belonging to protection domain of the present utility model.
Claims (4)
1. motor two turbocharging systems, comprise high pressure stage turbosupercharger (1), low pressure stage turbosupercharger (2), interstage cooler (3) and motor, it is characterized in that: described interstage cooler (3) is arranged on the flywheel casing of motor, described low pressure stage turbosupercharger (2) is installed in gas exhaust manifold (4) top of motor, described high pressure stage turbosupercharger (1) is close low pressure stage turbosupercharger (2) from the below, and high-pressure turbine stage (12) volute on the high pressure stage turbosupercharger (1) and the corresponding connection of total mouth of pipe of gas exhaust manifold (4), high-pressure turbine stage (12) volute, low pressure stage turbo machine (22) volute and connecting pipeline between the two are connected.
2. a kind of motor two turbocharging systems according to claim 1, it is characterized in that: described high-pressure turbine stage (12) volute, low pressure stage turbo machine (22) volute and connecting pipeline between the two are connected by casting.
3. a kind of motor two turbocharging systems according to claim 1 and 2, it is characterized in that: described low pressure stage turbo machine (22) volute is fixed on the support (5), and support (5) is installed on the enmgine exhaust (4).
4. a kind of motor two turbocharging systems of stating according to claim 3 is characterized in that: described support (5) is upper to be provided with waist circular apertures (6) along Y, Z direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204321154U CN202768140U (en) | 2012-08-29 | 2012-08-29 | Two-stage turbocharging system of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204321154U CN202768140U (en) | 2012-08-29 | 2012-08-29 | Two-stage turbocharging system of engine |
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| Publication Number | Publication Date |
|---|---|
| CN202768140U true CN202768140U (en) | 2013-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204321154U Expired - Lifetime CN202768140U (en) | 2012-08-29 | 2012-08-29 | Two-stage turbocharging system of engine |
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| Country | Link |
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| CN (1) | CN202768140U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167074A (en) * | 2017-11-22 | 2018-06-15 | 中国北方发动机研究所(天津) | A kind of Two Stage Turbocharging System height is arbitrarily downgraded booster support construction |
| CN114427493A (en) * | 2022-03-23 | 2022-05-03 | 上海汽车集团股份有限公司 | Supercharger and engine with same |
-
2012
- 2012-08-29 CN CN2012204321154U patent/CN202768140U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167074A (en) * | 2017-11-22 | 2018-06-15 | 中国北方发动机研究所(天津) | A kind of Two Stage Turbocharging System height is arbitrarily downgraded booster support construction |
| CN114427493A (en) * | 2022-03-23 | 2022-05-03 | 上海汽车集团股份有限公司 | Supercharger and engine with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DONGFENG COMMERCIAL VEHICLE CO., LTD. Free format text: FORMER OWNER: DONGFENG AUTOMOBILE CO., LTD. Effective date: 20130904 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 430056 WUHAN, HUBEI PROVINCE TO: 442001 SHIYAN, HUBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130904 Address after: 442001 Shiyan City, Hubei province city Zhangwan District Road No. 2 Patentee after: DONGFENG TRUCKS Co.,Ltd. Address before: 430056 Dongfeng Road, Wuhan Economic Development Zone, Hanyang District, Hubei, China, No. 10, No. Patentee before: DONGFENG MOTER Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130306 |