CN202391559U - Single-vortex double-pressure turbocharging system with low pressure exhaust recirculation - Google Patents
Single-vortex double-pressure turbocharging system with low pressure exhaust recirculation Download PDFInfo
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- CN202391559U CN202391559U CN2011204315873U CN201120431587U CN202391559U CN 202391559 U CN202391559 U CN 202391559U CN 2011204315873 U CN2011204315873 U CN 2011204315873U CN 201120431587 U CN201120431587 U CN 201120431587U CN 202391559 U CN202391559 U CN 202391559U
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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
Abstract
The utility model discloses a single-vortex double-pressure turbocharging system with low pressure exhaust recirculation in the technical field of internal combustion engine. The system comprises a gas intake pipe, an intake manifold, an engine, an exhaust pipe, an exhaust manifold, a turbine, a first gas compressor, a second gas compressor, a connecting shaft, a connecting pipe and control valves, wherein the first gas compressor, the second gas compressor and the turbine are coaxially connected through the connecting shaft, a first control valve is installed on the gas intake pipe of the first gas compressor, a second control valve is installed on the gas intake pipe of the second gas compressor, a third control valve is installed on the connecting pipe, a fourth control valve is installed on the exhaust pipe of the first gas compressor, and a low pressure control valve is installed on a low pressure connecting pipe. Different control valves are controlled to open and close to realize three working modes of single gas compressor, double gas compressors connected in parallel and double gas compressors connected in series and exhaust recirculation under the three working modes. The system disclosed by the utility model has reasonable design and simple control strategy, so that the system is fit for turbocharging systems with various cylinder numbers.
Description
Technical field
The utility model relates to a kind of turbo charge system of field of internal combustion engine, the particularly a kind of two turbo charge systems of pressing in the single whirlpool that has low pressure exhaust recirculation that can realize gas compressor series parallel connection work.
Background technique
In the face of severe day by day environment and energy crisis, improve specific power, reduce oil consumption and reduce the main direction that discharging becomes internal combustion engine development.The effective means of strengthening internal-combustion engine is not only in turbosupercharging, and realizes reducing oil consumption and the purpose that reduces discharging simultaneously, has become indispensable technological means of modern ic machine technology.But, receive the influence of turbocharger air compressor flow characteristic, for the single pressing system in traditional single whirlpool, gas compressor can only limit the popularization on a large scale of turbocharging technology in narrow high efficient area work.If motor need move the high pressure ratio operating mode, single stage turbocharger system also is difficult to meet the demands, and often need realize through the two-step supercharging system of complicacy.
Retrieval through to the existing technology document is found; One Chinese patent application numbers 200510025774.0; Patent name: the adjustable high-pressure system of big or small turbosupercharging series parallel connection, this patented technology are realized single-stage turbocharging through bypass in specific embodiments; Sequential turbocharging and two turbocharging make the excursion of turbine equivalent circulation area wider; But the range of flow of gas compressor just is restricted.One Chinese patent application numbers 200710144757.8, patent name: adjustable consecutive load turbo charge system, this patented technology is in specific embodiments; Realize the separate unit turbosupercharging through the bypass method; Two parallel turbine superchargings, the turbosupercharging of intake and exhaust bypass, high operating mode venting turbosupercharging; Enlarge the range of operation of turbo-charged diesel, improved the turbo-diesel's performance in the full operating mode scope; But this invention also can't be regulated the matching relationship between turbine and the gas compressor.
Summary of the invention
The utility model is to the deficiency of above-mentioned existing technology; A kind of two turbo charge systems of pressing in single whirlpool that have low pressure exhaust recirculation are provided; Make it not only can regulate the range of flow of gas compressor; Can also realize single gas compressor, dual-air compressor parallel connection, three kinds of mode of operations of dual-air compressor series connection, and the exhaust gas recirculatioon under these three kinds of mode of operations.
The utility model is realized through following technological scheme; The utility model comprises: suction tude, intercooler, intake manifold, motor, exhaust manifold, turbine, outlet pipe, the first compressor air inlet machine pipe, the second compressor air inlet machine pipe, first gas compressor, second gas compressor, coupling shaft, the first gas compressor steam outlet pipe, the second gas compressor steam outlet pipe, connecting tube, first control valve, second control valve, the 3rd control valve, the 4th control valve, low-pressure connection tube, low-pressure control valve and low pressure intercooler; Intercooler is installed on the intake manifold; Intake manifold's air outlet links to each other with the suction port of motor; The air outlet of motor links to each other with the suction port of exhaust manifold; The air outlet of exhaust manifold links to each other with the suction port of turbine; The air outlet of turbine links to each other with the suction port of outlet pipe, and the suction port of the suction port of the first compressor air inlet machine pipe, the second compressor air inlet machine pipe all links to each other with the air outlet of suction tude, and the air inlet/outlet of first gas compressor links to each other with the air outlet of the first compressor air inlet machine pipe, the suction port of the first gas compressor steam outlet pipe respectively; The air inlet/outlet of second gas compressor links to each other with the air outlet of the second compressor air inlet machine pipe, the suction port of the second gas compressor steam outlet pipe respectively; The air outlet of the air outlet of the first gas compressor steam outlet pipe, the second gas compressor steam outlet pipe all links to each other with intake manifold's suction port, and first gas compressor, second gas compressor, turbine link to each other through coupling shaft is coaxial, and connecting tube is installed between the first gas compressor steam outlet pipe and the second compressor air inlet machine pipe; First control valve is installed on the first compressor air inlet machine pipe; Second control valve is installed on the second compressor air inlet machine pipe, and the 3rd control valve is installed on the connecting tube, and the 4th control valve is installed on the first gas compressor steam outlet pipe; Low-pressure connection tube is installed between suction tude and the outlet pipe, and low-pressure control valve and low pressure intercooler are installed on the low-pressure connection tube.
In the working procedure of the utility model, through regulating the opening and closing of different control valves, can realize single gas compressor, dual-air compressor parallel connection, three kinds of mode of operations of dual-air compressor series connection, and the exhaust gas recirculatioon under these three kinds of mode of operations.Close simultaneously when first control valve, the 3rd control valve and the 4th control valve, when second control valve is opened, can realize working independently of second gas compressor; Open simultaneously when first control valve, second control valve and the 4th control valve, when the 3rd control valve is closed, can realize the parallel operation of first gas compressor and second gas compressor; Close simultaneously when second control valve and the 4th control valve, when first control valve and the 3rd control valve are opened simultaneously, can realize the series operation of first gas compressor and second gas compressor.Under these three kinds of mode of operations, all can realize exhaust gas recirculatioon:, can regulate exhaust gas recirculation rate through regulating the aperture of low-pressure control valve; When low-pressure control valve is all opened, have the exhaust of maximum flow to pass through in the low-pressure connection tube, exhaust gas recirculation rate is maximum.Can realize the cooling of engine charge can realizing the cooling of exhaust gas recirculatioon gas through the low pressure intercooler through intercooler.
Compared with prior art; The utlity model has following beneficial effect is: the utility model is reasonable in design; Control strategy is simple, is applicable to the turbo charge system of various cylinder number, can regulate the range of flow of gas compressor; Can realize single gas compressor, dual-air compressor parallel connection, three kinds of mode of operations of dual-air compressor series connection again, and the exhaust gas recirculatioon under these three kinds of mode of operations.Gas compressor was operated in high efficient area when single gas compressor work can ensure low discharge, prevented that surge from taking place; The dual-air compressor parallel operation can ensure that gas compressor is operated in high efficient area when high flow capacity, prevent obstruction; The dual-air compressor series operation can ensure the demand of motor to high pressure ratio, effectively improves engine power performance.Through exhaust gas recirculatioon, can further reduce the oxynitrides in the exhaust.
Description of drawings
Fig. 1 has the two structural representations of pressing turbo charge system in single whirlpool of low pressure exhaust recirculation for the utility model;
Wherein: 1, suction tude, 2, the first compressor air inlet machine pipe, 3, the second compressor air inlet machine pipe, 4, first gas compressor, 5, second gas compressor; 6, turbine, 7, coupling shaft, 8, the first gas compressor steam outlet pipe, 9, the second gas compressor steam outlet pipe, 10, intercooler; 11, intake manifold, 12, motor, 13, exhaust manifold, 14, outlet pipe; 15, connecting tube, 16, first control valve, 17, second control valve, the 18, the 3rd control valve; 19, the 4th control valve, 20, low-pressure connection tube, 21, low-pressure control valve, 22, the low pressure intercooler.
Embodiment
Embodiment to the utility model elaborates below in conjunction with accompanying drawing, and present embodiment is a prerequisite with the utility model technological scheme, provided detailed mode of execution and concrete operating process, but the protection domain of the utility model is not limited to following embodiment.
Embodiment
As shown in Figure 1; The utility model comprises: suction tude 1, intercooler 10, intake manifold 11, motor 12, exhaust manifold 13, turbine 6, outlet pipe 14, the first compressor air inlet machine pipe 2, the second compressor air inlet machine pipe 3, first gas compressor 4, second gas compressor 5, coupling shaft 7, the first gas compressor steam outlet pipe 8, the second gas compressor steam outlet pipe 9, connecting tube 15, first control valve 16, second control valve 17, the 3rd control valve 18, the 4th control valve 19, low-pressure connection tube 20, low-pressure control valve 21 and low pressure intercooler 22; Intercooler 10 is installed on the intake manifold 11; Intake manifold 11 air outlet links to each other with the suction port of motor 12; The air outlet of motor 12 links to each other with the suction port of exhaust manifold 13; The air outlet of exhaust manifold 13 links to each other with the suction port of turbine 6; The air outlet of turbine 6 links to each other with the suction port of outlet pipe 14; The suction port of the suction port of the first compressor air inlet machine pipe 2, the second compressor air inlet machine pipe 3 all links to each other with the air outlet of suction tude 1; The air inlet/outlet of first gas compressor 4 links to each other with the air outlet of the first compressor air inlet machine pipe 2, the suction port of the first gas compressor steam outlet pipe 8 respectively, and the air inlet/outlet of second gas compressor 5 links to each other with the air outlet of the second compressor air inlet machine pipe 3, the suction port of the second gas compressor steam outlet pipe 9 respectively, and the air outlet of the air outlet of the first gas compressor steam outlet pipe 8, the second gas compressor steam outlet pipe 9 all links to each other with intake manifold 11 suction port; First gas compressor 4, second gas compressor 5, turbine 6 are through 7 coaxial linking to each other of coupling shaft; Connecting tube 15 is installed between the first gas compressor steam outlet pipe 8 and the second compressor air inlet machine pipe 3, and first control valve 16 is installed on the first compressor air inlet machine pipe 2, and second control valve 17 is installed on the second compressor air inlet machine pipe 3; The 3rd control valve 18 is installed on the connecting tube 15; The 4th control valve 19 is installed on the first gas compressor steam outlet pipe 8, and low-pressure connection tube 20 is installed between suction tude 1 and the outlet pipe 14, and low-pressure control valve 21 is installed on the low-pressure connection tube 20 with low pressure intercooler 22.
In the working procedure of the utility model, through regulating the opening and closing of different control valves, can realize single gas compressor, dual-air compressor parallel connection, three kinds of mode of operations of dual-air compressor series connection, and the exhaust gas recirculatioon under these three kinds of mode of operations.Close simultaneously when first control valve 16, the 3rd control valve 18 and the 4th control valve 19, when second control valve 17 is opened, can realize working independently of second gas compressor 5; Open simultaneously when first control valve 16, second control valve 17 and the 4th control valve 19, when the 3rd control valve 18 is closed, can realize the parallel operation of first gas compressor 4 and second gas compressor 5; Close simultaneously when second control valve 17 and the 4th control valve 19, when first control valve 16 and the 3rd control valve 18 are opened simultaneously, can realize the series operation of first gas compressor 4 and second gas compressor 5.Under these three kinds of mode of operations, all can realize exhaust gas recirculatioon:, can regulate exhaust gas recirculation rate through regulating the aperture of low-pressure control valve 21; When low-pressure control valve 21 is all opened, have the exhaust of maximum flow to pass through in the low-pressure connection tube 20, exhaust gas recirculation rate is maximum.Can realize the cooling of engine charge can realizing the cooling of exhaust gas recirculatioon gas through low pressure intercooler 22 through intercooler 10.
Claims (1)
1. two turbo charge systems of pressing in the single whirlpool that has low pressure exhaust recirculation; Comprise: suction tude (1), intercooler (10), intake manifold (11), motor (12), exhaust manifold (13), turbine (6) and outlet pipe (14); Intercooler (10) is installed on the intake manifold (11); Intake manifold's (11) air outlet links to each other with the suction port of motor (12); The air outlet of motor (12) links to each other with the suction port of exhaust manifold (13); The air outlet of exhaust manifold (13) links to each other with the suction port of turbine (6); The air outlet of turbine (6) links to each other with the suction port of outlet pipe (14); It is characterized in that also comprising the first compressor air inlet machine pipe (2), the second compressor air inlet machine pipe (3), first gas compressor (4), second gas compressor (5), coupling shaft (7), the first gas compressor steam outlet pipe (8), the second gas compressor steam outlet pipe (9), connecting tube (15), first control valve (16), second control valve (17), the 3rd control valve (18), the 4th control valve (19), low-pressure connection tube (20), low-pressure control valve (21) and low pressure intercooler (22); The suction port of the suction port of the first compressor air inlet machine pipe (2), the second compressor air inlet machine pipe (3) all links to each other with the air outlet of suction tude (1); The air inlet/outlet of first gas compressor (4) links to each other with the air outlet of the first compressor air inlet machine pipe (2), the suction port of the first gas compressor steam outlet pipe (8) respectively; The air inlet/outlet of second gas compressor (5) links to each other with the air outlet of the second compressor air inlet machine pipe (3), the suction port of the second gas compressor steam outlet pipe (9) respectively; The air outlet of the air outlet of the first gas compressor steam outlet pipe (8), the second gas compressor steam outlet pipe (9) all links to each other with intake manifold's (11) suction port, and first gas compressor (4), second gas compressor (5), turbine (6) link to each other through coupling shaft (7) is coaxial, and connecting tube (15) is installed between the first gas compressor steam outlet pipe (8) and the second compressor air inlet machine pipe (3); First control valve (16) is installed on the first compressor air inlet machine pipe (2); Second control valve (17) is installed on the second compressor air inlet machine pipe (3), and the 3rd control valve (18) is installed on the connecting tube (15), and the 4th control valve (19) is installed on the first gas compressor steam outlet pipe (8); Low-pressure connection tube (20) is installed between suction tude (1) and the outlet pipe (14), and low-pressure control valve (21) and low pressure intercooler (22) are installed on the low-pressure connection tube (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204315873U CN202391559U (en) | 2011-11-03 | 2011-11-03 | Single-vortex double-pressure turbocharging system with low pressure exhaust recirculation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204315873U CN202391559U (en) | 2011-11-03 | 2011-11-03 | Single-vortex double-pressure turbocharging system with low pressure exhaust recirculation |
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| Publication Number | Publication Date |
|---|---|
| CN202391559U true CN202391559U (en) | 2012-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204315873U Expired - Fee Related CN202391559U (en) | 2011-11-03 | 2011-11-03 | Single-vortex double-pressure turbocharging system with low pressure exhaust recirculation |
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| CN (1) | CN202391559U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317534A (en) * | 2015-11-12 | 2016-02-10 | 哈尔滨工程大学 | Turbocharger structure capable of achieving single-stage supercharging and two-stage supercharging |
-
2011
- 2011-11-03 CN CN2011204315873U patent/CN202391559U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317534A (en) * | 2015-11-12 | 2016-02-10 | 哈尔滨工程大学 | Turbocharger structure capable of achieving single-stage supercharging and two-stage supercharging |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20121103 |