CN102979616A - Two-stage turbocharger applied to heavy-duty diesel engine - Google Patents
Two-stage turbocharger applied to heavy-duty diesel engine Download PDFInfo
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- CN102979616A CN102979616A CN2012105555939A CN201210555593A CN102979616A CN 102979616 A CN102979616 A CN 102979616A CN 2012105555939 A CN2012105555939 A CN 2012105555939A CN 201210555593 A CN201210555593 A CN 201210555593A CN 102979616 A CN102979616 A CN 102979616A
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- pressure stage
- turbocharger
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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 relates to a turbocharger, in particular to a two-stage turbocharger applied to a heavy-duty diesel engine, and belongs to the field of heat energy and power machinery structures. The two-stage turbocharger comprises a low pressure stage exhaust gas turbocharger and a high pressure stage exhaust gas turbocharger which are fixedly connected, wherein the low pressure stage exhaust gas turbocharger comprises a first gas compressor, a first middle case and a low pressure stage volute case which are mounted in sequence; and the high pressure stage exhaust gas turbocharger comprises a second gas compressor, a second middle case and a high pressure stage volute case which are mounted in sequence. According to the invention, the space for mounting a pipeline at the gas compressor end can be reduced, the structure of the whole two-stage turbocharger is more compact, and a better spatial arrangement advantage in the aspect of engine arrangement is obtained.
Description
Technical field
The present invention relates to turbosupercharger, belong to the field, structure side of heat energy and dynamic power machine, specifically a kind of two-stage turbocharger that is applied to large diesel engine.
Background technique
In the two-step supercharging exhaust-gas turbocharger is used, the waste gas that motor is discharged at first enters the high pressure stage turbine case through gas exhaust manifold and carries out first order expansion acting, then the intermediate duct by being connected respectively with high pressure stage spiral case, low pressure stage spiral case enters into the low pressure stage turbine and carries out the second level acting of expanding; Because with intermediate duct, reach V-type clip or bolt that connecting pipeline is used in the system, cause traditional two-stage supercharger system that passes through the intermediate duct connection just to have some shortcomings, more such as system parts quantity; The motor installing space of system requirements is larger, and connection interface is also many simultaneously, has a strong impact on the tightness of pipeline.
Summary of the invention
The present invention is directed to the problems referred to above, a kind of two-stage turbocharger that is applied to large diesel engine is provided, assistant connecting pipe road or extra union piece in the middle of this two-stage turbocharger does not need can reduce gas compressor end pipeline required space is installed.
According to technological scheme of the present invention: a kind of two-stage turbocharger that is applied to large diesel engine
Comprise the low pressure stage exhaust-gas turbocharger and the high pressure stage exhaust-gas turbocharger that are fixed together, described low pressure stage exhaust-gas turbocharger comprises the first gas compressor that is installed together successively, the first middle case, the low pressure stage volute, described high pressure stage exhaust-gas turbocharger comprises the second gas compressor that is installed together successively, the second middle case, the high pressure stage volute, feature is: directly be tightly connected the first air outlet of high pressure stage volute of the suction port of described low pressure stage volute, the second air outlet of described the second gas compressor towards with the second gas compressor parallel to an axis, point to the second middle case one side.
As a further improvement on the present invention, be provided with more than one mounting bracket on the described low pressure stage volute.
As a further improvement on the present invention, the first air outlet of the suction port of described low pressure stage volute and described high pressure stage volute is bolted to connection.
As a further improvement on the present invention, the suction port of described low pressure stage volute is fixedly connected with by the V-type clip with the first air outlet of described high pressure stage volute.
Technique effect of the present invention is: the present invention has reduced the high and low number of spare parts of arbitrarily downgrading and connecting between volute by the high and low exhaust-gas turbocharger of arbitrarily downgrading is directly connected, and this structure has less sealing surface and link, thereby has improved the reliability of system; Simultaneously on the low pressure stage spiral case logical mounting bracket is set, can be directly and motor be connected and fixed, reduced the number of spare parts of supercharger systems, system architecture is compacter, the installing space of requirement is less; High pressure stage blower outlet trend has been done optimal design, can reduce gas compressor end pipeline required space is installed, and makes whole two-stage turbocharger more compact structure, so that have better space to arrange advantage in engine arrangement.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is structure side view of the present invention.
Fig. 3 is structure side view of the present invention.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is further described.
Fig. 1～shown in Figure 3 comprises low pressure stage exhaust-gas turbocharger 1, high pressure stage exhaust-gas turbocharger 2, the first gas compressor 3, low pressure stage volute 4, the second gas compressor 5, high pressure stage volute 6, suction port 7, the first air outlet 8, the second air outlet 9, the second middle case 10, the first middle case 11, mounting bracket 12 etc.
As shown in Figure 1, the present invention is a kind of two-stage turbocharger, comprise the low pressure stage exhaust-gas turbocharger 1 and the high pressure stage exhaust-gas turbocharger 2 that are fixed together, described low pressure stage exhaust-gas turbocharger 1 comprises the first gas compressor 3 that is installed together successively, the first middle case 11, low pressure stage volute 4, described high pressure stage exhaust-gas turbocharger 2 comprises the second gas compressor 5 that is installed together successively, the second middle case 10, high pressure stage volute 6, directly be tightly connected the first air outlet 8 of high pressure stage volute 6 of the suction port 7 of described low pressure stage volute 4, the second air outlet 9 of described the second gas compressor 5 towards with the second gas compressor 5 parallel to an axiss, point to the second middle case 10 1 sides.
Be provided with more than one mounting bracket 12 on the described low pressure stage volute 4.
The suction port 7 of described low pressure stage volute 4 is bolted to connection with the first air outlet 8 of described high pressure stage volute 6.
The suction port 7 of described low pressure stage volute 4 is fixedly connected with by the V-type clip with the first air outlet 8 of described high pressure stage volute 6.
Working procedure of the present invention is as follows: vehicle engine exhaust gas at first enters high pressure stage exhaust-gas turbocharger 2 by gas exhaust manifold, enter the acting of high pressure stage turbine expansion through high pressure stage volute 6 water conservancy diversion, directly enter low pressure stage volute 4 by the first air outlet 8 behind the waste expansion, the water conservancy diversion of process low pressure stage volute 4 runners enters the low pressure stage turbine and carries out the reexpansion acting, then flows out through low pressure stage volute 4 air outlets.At the gas compressor end, fresh air through air-strainer at first enters the first gas compressor 3, the same axial compression impeller pressurized air that is driven by the low pressure stage turbine, make air compressed, pressure improves, and air after the compression enters into the second gas compressor 5 for the first time, again compressed, enter at last motor and participate in burning.
The present invention has reduced the high and low number of spare parts of arbitrarily downgrading and connecting between volute by the high and low exhaust-gas turbocharger of arbitrarily downgrading is directly connected, and this structure has less sealing surface and link, thereby has improved the reliability of system; Simultaneously on the low pressure stage spiral case logical mounting bracket is set, can be directly and motor be connected and fixed, reduced the number of spare parts of supercharger systems, system architecture is compacter, the installing space of requirement is less; High pressure stage blower outlet trend has been done optimal design, can reduce gas compressor end pipeline required space is installed, and makes whole two-stage turbocharger more compact structure, so that have better space to arrange advantage in engine arrangement.
Claims (4)
1. two-stage turbocharger that is applied to large diesel engine, comprise the low pressure stage exhaust-gas turbocharger (1) and the high pressure stage exhaust-gas turbocharger (2) that are fixed together, described low pressure stage exhaust-gas turbocharger (1) comprises the first gas compressor (3) that is installed together successively, the first middle case (11), low pressure stage volute (4), described high pressure stage exhaust-gas turbocharger (2) comprises the second gas compressor (5) that is installed together successively, the second middle case (10), high pressure stage volute (6), it is characterized in that: directly be tightly connected first air outlet (8) of high pressure stage volute (6) of the suction port (7) of described low pressure stage volute (4), second air outlet (9) of described the second gas compressor (5) towards with the second gas compressor (5) parallel to an axis, point to the second middle case (10) one sides.
2. according to a kind of two-stage turbocharger that is applied to large diesel engine claimed in claim 1, it is characterized in that: be provided with more than one mounting bracket 12 on the described low pressure stage volute (4).
3. according to a kind of two-stage turbocharger that is applied to large diesel engine claimed in claim 1, it is characterized in that: the suction port (7) of described low pressure stage volute (4) is bolted to connection with first air outlet (8) of described high pressure stage volute (6).
4. according to a kind of two-stage turbocharger that is applied to large diesel engine claimed in claim 1, it is characterized in that: the suction port (7) of described low pressure stage volute (4) is fixedly connected with by the V-type clip with first air outlet (8) of described high pressure stage volute (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105555939A CN102979616A (en) | 2012-12-20 | 2012-12-20 | Two-stage turbocharger applied to heavy-duty diesel engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105555939A CN102979616A (en) | 2012-12-20 | 2012-12-20 | Two-stage turbocharger applied to heavy-duty diesel engine |
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| CN102979616A true CN102979616A (en) | 2013-03-20 |
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| CN2012105555939A Pending CN102979616A (en) | 2012-12-20 | 2012-12-20 | Two-stage turbocharger applied to heavy-duty diesel engine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806343A (en) * | 2015-05-07 | 2015-07-29 | 长春富奥石川岛增压器有限公司 | Two-stage pressurizer |
| CN108019244A (en) * | 2017-12-05 | 2018-05-11 | 重庆小康工业集团股份有限公司 | The detent mechanism precisely aligned suitable for volute inlet |
| US11448118B2 (en) | 2018-09-04 | 2022-09-20 | Caterpillar Motoren Gmbh & Co. Kg | Two-stage turbocharged internal combustion engine |
| JP7415068B2 (en) | 2022-03-02 | 2024-01-16 | ヤンマーパワーテクノロジー株式会社 | engine equipment |
Citations (5)
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| CN1791739A (en) * | 2003-05-15 | 2006-06-21 | 沃尔沃拉斯特瓦格纳公司 | Turbo compressor system for internal combustion engine comprising two serially placed turbo units with their rotation axes essentially concentric |
| CN101171408A (en) * | 2005-05-10 | 2008-04-30 | 博格华纳公司 | Valve regulation for turbocharger |
| CN202338390U (en) * | 2010-06-09 | 2012-07-18 | 曼柴油机和涡轮机欧洲股份公司 | Internal combustion engine |
| CN102606285A (en) * | 2012-04-07 | 2012-07-25 | 潍坊富源增压器有限公司 | Turbocharger with two-stage supercharging function |
| CN203098039U (en) * | 2012-12-20 | 2013-07-31 | 无锡康明斯涡轮增压技术有限公司 | Two-stage turbocharger applicable to heavy-duty diesel engine |
-
2012
- 2012-12-20 CN CN2012105555939A patent/CN102979616A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1791739A (en) * | 2003-05-15 | 2006-06-21 | 沃尔沃拉斯特瓦格纳公司 | Turbo compressor system for internal combustion engine comprising two serially placed turbo units with their rotation axes essentially concentric |
| CN101171408A (en) * | 2005-05-10 | 2008-04-30 | 博格华纳公司 | Valve regulation for turbocharger |
| CN202338390U (en) * | 2010-06-09 | 2012-07-18 | 曼柴油机和涡轮机欧洲股份公司 | Internal combustion engine |
| CN102606285A (en) * | 2012-04-07 | 2012-07-25 | 潍坊富源增压器有限公司 | Turbocharger with two-stage supercharging function |
| CN203098039U (en) * | 2012-12-20 | 2013-07-31 | 无锡康明斯涡轮增压技术有限公司 | Two-stage turbocharger applicable to heavy-duty diesel engine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806343A (en) * | 2015-05-07 | 2015-07-29 | 长春富奥石川岛增压器有限公司 | Two-stage pressurizer |
| CN108019244A (en) * | 2017-12-05 | 2018-05-11 | 重庆小康工业集团股份有限公司 | The detent mechanism precisely aligned suitable for volute inlet |
| US11448118B2 (en) | 2018-09-04 | 2022-09-20 | Caterpillar Motoren Gmbh & Co. Kg | Two-stage turbocharged internal combustion engine |
| JP7415068B2 (en) | 2022-03-02 | 2024-01-16 | ヤンマーパワーテクノロジー株式会社 | engine equipment |
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Application publication date: 20130320 |