CN103541835A - Turbocharged engine with cooling exhaust recirculation technology - Google Patents
Turbocharged engine with cooling exhaust recirculation technology Download PDFInfo
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- CN103541835A CN103541835A CN201310470967.1A CN201310470967A CN103541835A CN 103541835 A CN103541835 A CN 103541835A CN 201310470967 A CN201310470967 A CN 201310470967A CN 103541835 A CN103541835 A CN 103541835A
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- air inlet
- exhaust
- air
- intercooler
- egr
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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 turbocharged engine with a cooling exhaust recirculation technology. An air inlet in the vortex end of a turbocharger is connected with an exhaust manifold, an air outlet is connected with atmosphere through an exhaust pipe, an air inlet of the compression end of the turbocharger is connected with an air filter through a first air inlet pipe, and the air outlet is connected with a throttle body communicated with an air inlet manifold through a second air inlet pipe. A three-way catalytic converter is arranged in the middle of the exhaust pipe, an engine intercooler is arranged in the middle of the second air inlet pipe, the exhaust port end of the exhaust pipe is further connected with the first air inlet pipe through a bypass pipeline composed of an EGR intercooler and an EGR valve, an air inlet of the EGR intercooler is connected to the exhaust port end of the exhaust pipe, the air outlet is connected with an air inlet of the EGR valve, and an air outlet of the EGR valve is connected to the first air inlet pipe. Due to the fact that the exhaust pipe is communicated with the first air inlet pipe through the bypass pipeline, a certain amount of exhaust is added into inlet air, anti-explosion and anti-vibration properties are improved, the compression ratio is improved, oil consumption and NOx emission are reduced, and the structure is simple and compact.
Description
Technical field
The present invention relates to a kind of auto turbo-supercharged engine, particularly relate to a kind of turbosupercharged engine with cooled exhaust gas recirculation technology.
Background technique
At present, supercharged engine technology has occupied critical role in market, and will develop into gradually leading position.Along with the increasingly stringent of national energy-saving reduction of discharging rules, engine performance also needs to carry out the potential development of the degree of depth, with more outstanding fuel consumption and emission reply future market.Increasing cylinder compression ratio is a kind of simple and effective raising engine combustion efficiency, reduce oil consumption measure, but because being subject to the restriction of engine combustion pinking, compression ratio can not infinitely increase, and this has greatly limited the development of supercharged engine technology.
Summary of the invention
The object of the invention is to overcome the deficiency existing in above-mentioned technology, provide a kind of simple in structure, reasonable in design, can effectively suppress combustion knock tendency and increase the turbosupercharged engine with cooled exhaust gas recirculation technology of compression ratio.
In order to achieve the above object, the technical solution used in the present invention is: comprise engine cylinder cap, intake manifold, gas exhaust manifold, turbosupercharger, the suction port of turbosupercharger whirlpool end is connected with gas exhaust manifold, air outlet is connected with atmosphere by outlet pipe, the suction port of turbosupercharger pressure side is connected with air-strainer by the first suction tude, air outlet is connected with the throttle body being communicated with intake manifold by the second suction tude, the middle part of outlet pipe is provided with ternary catalyzing unit, the middle part of the second suction tude is provided with engine intercooler, the exhaust port side of described outlet pipe is also connected with the first suction tude by bypass line, described bypass line is comprised of EGR intercooler and EGR valve, the suction port of described EGR intercooler is connected to the exhaust port side of outlet pipe, the air outlet of EGR intercooler is connected with the suction port of EGR valve, the air outlet of described EGR valve is connected to the first suction tude.
Advantage of the present invention is:
1, simple and compact for structure, reasonable in design, low cost of manufacture;
2, utilize bypass line that outlet pipe and the first suction tude are communicated with, make certain air displacement join in air inlet and participate in final burning, reduced in-cylinder combustion temperature, improved knock resistance, thereby increased the compression ratio of motor, promote the combustion efficiency of motor, finally reached good fuel economy;
3, a certain amount of exhaust rejoins in air inlet through bypass line, has reduced the discharge of the harmful gases such as NOx, is conducive to promote the realization of energy-saving and emission-reduction.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in further detail.
As shown in Figure 1, the present invention includes engine cylinder cap 2, intake manifold 1, gas exhaust manifold 3, turbosupercharger 4, the suction port of turbosupercharger 4 whirlpool ends is connected with gas exhaust manifold 3, air outlet is connected with atmosphere by outlet pipe 5, the suction port of turbosupercharger 4 pressure sides is connected with air-strainer 11 by the first suction tude 10, air outlet is connected with the throttle body 14 being communicated with intake manifold 1 by the second suction tude 12, the middle part of outlet pipe 5 is provided with ternary catalyzing unit 6, the middle part of the second suction tude 12 is provided with engine intercooler 13, the exhaust port side of described outlet pipe 5 is also connected with the first suction tude 10 by bypass line 7, described bypass line 7 is comprised of EGR intercooler 8 and EGR valve 9, the suction port of described EGR intercooler 8 is connected to the exhaust port side of outlet pipe 5, the air outlet of EGR intercooler 8 is connected with the suction port of EGR valve 9, the air outlet of described EGR valve 9 is connected to the first suction tude 10.
A kind of turbosupercharged engine with cooled exhaust gas recirculation technology of the present invention is mainly comprised of engine cylinder cap 2, intake manifold 1, gas exhaust manifold 3, turbosupercharger 4 and bypass line 7, and wherein bypass line 7 comprises EGR intercooler 8 and EGR valve 9.In engine work process, the exhaust that engine combustion produces enters turbosupercharger 4 whirlpool ends through gas exhaust manifold 3, the burning and gas-exhausting of high temperature, high pressure promotes the wheel rotation of turbo machine, and drives the compressor impeller of turbosupercharger 4 pressure sides to rotate, and realizes the compression to inlet air.High-temperature exhaust air flows out whirlpool end, after ternary catalyzing unit 6 reprocessings, most of high-temperature exhaust air enters atmosphere through outlet pipe 5, another part exhaust flows into EGR intercooler 8 in bypass line 7 and by after its cooling, through EGR valve 9, enter the first suction tude 10, together with after mixing with fresh air from air-strainer 11 again, enter the pressure side of turbosupercharger 4, by gas compressor, carry out supercharging, finally by the second suction tude 12, be located at the engine intercooler 13 at the second suction tude 12 middle parts, throttle body 14 and intake manifold 1 enter the cylinder of motor, again participate in burning.EGR intercooler 8 is for controlling the temperature of backflow vent, after making it to reach uniform temperature, mix with fresh air again, the internal mechanism of EGR valve 9 is a kind of choke valve structure of flow-controllable, aperture is subject to electronic control system (ECU) regulation and control, for accurately controlling the exhaust gas recirculation amount that is back to gas handling system.
A kind of turbosupercharged engine with cooled exhaust gas recirculation technology of the present invention utilizes bypass line that outlet pipe and the first suction tude are communicated with, make certain air displacement join in air inlet and participate in final burning, reduced the discharge of the harmful gases such as in-cylinder combustion temperature and NOx, improved knock resistance, increased the compression ratio of motor, and promoted the combustion efficiency of motor, finally reach good fuel economy; In addition, the present invention is simple and compact for structure, reasonable in design, low cost of manufacture.
Claims (1)
1. the turbosupercharged engine with cooled exhaust gas recirculation technology, comprise engine cylinder cap (2), intake manifold (1), gas exhaust manifold (3), turbosupercharger (4), the suction port of turbosupercharger (4) whirlpool end is connected with gas exhaust manifold (3), air outlet is connected with atmosphere by outlet pipe (5), the suction port of turbosupercharger (4) pressure side is connected with air-strainer (11) by the first suction tude (10), air outlet is connected with the throttle body (14) being communicated with intake manifold (1) by the second suction tude (12), the middle part of outlet pipe (5) is provided with ternary catalyzing unit (6), the middle part of the second suction tude (12) is provided with engine intercooler (13), it is characterized in that: the exhaust port side of described outlet pipe (5) is also connected with the first suction tude (10) by bypass line (7), described bypass line (7) is comprised of EGR intercooler (8) and EGR valve (9), the suction port of described EGR intercooler (8) is connected to the exhaust port side of outlet pipe (5), the air outlet of EGR intercooler (8) is connected with the suction port of EGR valve (9), the air outlet of described EGR valve (9) is connected to the first suction tude (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310470967.1A CN103541835A (en) | 2013-09-30 | 2013-09-30 | Turbocharged engine with cooling exhaust recirculation technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310470967.1A CN103541835A (en) | 2013-09-30 | 2013-09-30 | Turbocharged engine with cooling exhaust recirculation technology |
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| Publication Number | Publication Date |
|---|---|
| CN103541835A true CN103541835A (en) | 2014-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310470967.1A Pending CN103541835A (en) | 2013-09-30 | 2013-09-30 | Turbocharged engine with cooling exhaust recirculation technology |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791147A (en) * | 2015-03-18 | 2015-07-22 | 上海交通大学 | Particulate matter removing device of marine heavy-duty diesel engine EGR system |
| CN106523198A (en) * | 2016-11-30 | 2017-03-22 | 天津大学 | Compulsory waste gas ejecting system capable of inhibiting preignition and detonation |
| CN107795412A (en) * | 2017-11-02 | 2018-03-13 | 广西玉柴机器股份有限公司 | The low pressure cold end egr system of engine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1094789A (en) * | 1993-02-03 | 1994-11-09 | 马自达汽车株式会社 | The internal-combustion engine of band pressurized machine |
| US20060086080A1 (en) * | 2004-10-27 | 2006-04-27 | Hitachi Ltd. | Engine exhaust gas cleaning method and system |
| DE60314360T2 (en) * | 2002-12-19 | 2008-02-21 | Caterpillar Inc., Peoria | Emission control system for increasing the performance of a selective catalytic reduction |
| CN101960108A (en) * | 2008-02-29 | 2011-01-26 | 珀金斯发动机有限公司 | Be used to control the system of exhaust after-treatment |
-
2013
- 2013-09-30 CN CN201310470967.1A patent/CN103541835A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1094789A (en) * | 1993-02-03 | 1994-11-09 | 马自达汽车株式会社 | The internal-combustion engine of band pressurized machine |
| DE60314360T2 (en) * | 2002-12-19 | 2008-02-21 | Caterpillar Inc., Peoria | Emission control system for increasing the performance of a selective catalytic reduction |
| US20060086080A1 (en) * | 2004-10-27 | 2006-04-27 | Hitachi Ltd. | Engine exhaust gas cleaning method and system |
| CN101960108A (en) * | 2008-02-29 | 2011-01-26 | 珀金斯发动机有限公司 | Be used to control the system of exhaust after-treatment |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791147A (en) * | 2015-03-18 | 2015-07-22 | 上海交通大学 | Particulate matter removing device of marine heavy-duty diesel engine EGR system |
| CN106523198A (en) * | 2016-11-30 | 2017-03-22 | 天津大学 | Compulsory waste gas ejecting system capable of inhibiting preignition and detonation |
| CN106523198B (en) * | 2016-11-30 | 2020-05-08 | 天津大学 | Forced exhaust gas injection system for inhibiting pre-ignition and detonation |
| CN107795412A (en) * | 2017-11-02 | 2018-03-13 | 广西玉柴机器股份有限公司 | The low pressure cold end egr system of engine |
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Application publication date: 20140129 |