CN102562370A - Exhaust recirculating system controlled by intake pressure - Google Patents
Exhaust recirculating system controlled by intake pressure Download PDFInfo
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- CN102562370A CN102562370A CN2012100266491A CN201210026649A CN102562370A CN 102562370 A CN102562370 A CN 102562370A CN 2012100266491 A CN2012100266491 A CN 2012100266491A CN 201210026649 A CN201210026649 A CN 201210026649A CN 102562370 A CN102562370 A CN 102562370A
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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
An exhaust recirculating system controlled by intake pressure belongs to the technical field of internal combustion engines and comprises a gas inlet pipe, an engine, an exhaust pipe, a gas compressor, a turbine, a connecting pipe, a cavity, a movable part and an elastic component. A third connecting pipe is mounted between a main exhaust pipe and the upper wall surface of the cavity, the cross section of the cavity is rectangular, and the movable part mounted in the cavity hermetically contacts with the inner wall surface of the cavity and is connected with the upper wall surface of the cavity through the elastic component. When the engine is in a medium-speed running state, the movable part moves upwards in the cavity, the exhaust recirculating rate is higher, exhaust temperature is lower, and the integral performance of the engine is excellent. When the engine is in a high-speed running state, the movable part moves downwards in the cavity, the exhaust recirculating rate is lower, the dynamic property of the engine is better, and the integral performance of the engine is excellent. The exhaust recirculating system controlled by intake pressure is reasonable in design and simple in structure and applicable to exhaust recirculating systems with turbochargers.
Description
Technical field
What the present invention relates to is a kind of exhaust gas recycling system of field of internal combustion engine, particularly a kind of exhaust gas recycling system of utilizing suction pressure to regulate that has turbosupercharger.
Background technique
The noxious emission of motor is a main source that causes pollution of atmosphere, along with the significance of environmental protection problem increases day by day, reduces the important directions that this target of Engine's Harmful Emission becomes motor development in the world today.Along with the consumption of world oil goods rises year by year, international oil price is high, and the Economy of diesel-oil vehicle is outstanding day by day, this make diesel engine in power train in vehicle application in occupation of more and more important position.So carry out the research of harmful emission of diesel engine thing controlling method, be the top priority of being engaged in the diesel engine artificer.Exhaust gas recycling system is to send the sub-fraction of the waste gas of diesel engine generation back to cylinder again.EGR gas since have inertia will the retarded combustion process, thereby that is to say that velocity of combustion will slow down the pressure forming process that causes in the firing chamber and slow down, main cause that oxynitrides can reduce that Here it is.In addition, improve ER EGR Rate total extraction flow is reduced, so total pollutant output quantity will reduce relatively in the toxic emission.When the middling speed operating mode, motor needs bigger exhaust gas recirculation rate, to reduce row's temperature, reduces to pollute; When high-speed working condition, motor needs less exhaust gas recirculation rate, to improve the power character of motor.
Retrieval through to the existing technology document is found; Chinese patent ZL200410063439.5; Patent name: electronic EGR gas control system, this patented technology provide a kind of device of controlling the engine exhaust recirculation rate, can take into account preferably motor in high rotating speed operating mode; But its exhaust gas recirculation rate variation be to realize through special control structure, thereby the more complicated that control system is become.
Summary of the invention
The present invention is directed to the deficiency of above-mentioned existing technology; A kind of exhaust gas recycling system of utilizing suction pressure to regulate is provided, has made its exhaust gas recirculation rate can self-control, take into account preferably motor in high rotating speed operating mode; And simple in structure, do not need special control mechanism.
The present invention realizes through following technological scheme; The present invention includes: suction tude, gas compressor, coupling shaft, gas compressor steam outlet pipe, intercooler, intake manifold, motor, exhaust manifold, turbine, outlet pipe, first connecting tube, second connecting tube, cavity volume, cavity volume upper wall surface, cavity volume lower wall surface, cavity volume left side wall, the right wall of cavity volume, cavity volume front face, cavity volume rear surface, elastic member, moving body and the 3rd connecting tube; The air outlet of suction tude is connected with the suction port of gas compressor; The air outlet of gas compressor is connected with the suction port of gas compressor steam outlet pipe; The air outlet of gas compressor steam outlet pipe is connected with the suction port of intercooler, and the air outlet of intercooler is connected with intake manifold's suction port, and intake manifold's air outlet is connected with the suction port of motor; The air outlet of motor is connected with the suction port of exhaust manifold; The air outlet of exhaust manifold is connected with the suction port of turbine, and the air outlet of turbine is connected with the suction port of outlet pipe, and gas compressor is connected with turbine through coupling shaft; It is characterized in that also comprising; Cavity volume upper wall surface, cavity volume lower wall surface, cavity volume left side wall, the right wall of cavity volume, cavity volume front face, cavity volume rear surface fix as one, and first connecting tube is installed between suction tude and the cavity volume left side wall, and second connecting tube is installed between outlet pipe and the right wall of cavity volume; The 3rd connecting tube is installed between intake manifold and the cavity volume upper wall surface; The cross section of cavity volume is a rectangular, and moving body is installed in the cavity volume and with the internal face sealing of cavity volume and contacts, and moving body is connected with the cavity volume upper wall surface through elastic member.Elastic member is a spring.
In working procedure of the present invention, moving body can move up and down in cavity volume.When motor was in the middling speed operating mode, the suction pressure in the intake manifold was lower, and moving body moves up under the effect of elastic member, and exhaust gas recirculation rate increases, and row's temperature drop is low, and motor complete machine performance is more excellent; When motor was in high-speed working condition, the suction pressure in the intake manifold was higher, thereby moving body is moved down after overcoming the elastic force of elastic member, and exhaust gas recirculation rate reduces, and engine power performance is better, and motor complete machine performance is more excellent.
Compared with prior art; The present invention has following beneficial effect: the present invention is reasonable in design; Simple in structure; Be applicable to the exhaust gas recycling system that has turbosupercharger, can take into account motor in high rotating speed operating mode, can make exhaust gas recycling system not need special exhaust gas recirculation rate control mechanism again.
Description of drawings
Fig. 1 utilizes the structural representation of the exhaust gas recycling system of suction pressure adjusting for the present invention;
Fig. 2 is the structural representation of A-A section among Fig. 1;
Wherein: 1, suction tude, 2, gas compressor, 3, coupling shaft, 4, the gas compressor steam outlet pipe, 5, intercooler, 6, the intake manifold; 7, motor, 8, exhaust manifold, 9, turbine, 10, outlet pipe, 11, first connecting tube, 12, second connecting tube; 13, cavity volume, 14, the cavity volume upper wall surface, 15, the cavity volume lower wall surface, 16, cavity volume left side wall, 17, the right wall of cavity volume; 18, cavity volume front face, 19, the cavity volume rear surface, 20, elastic member, 21, moving body, the 22, the 3rd connecting tube.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, present embodiment is a prerequisite with technological scheme of the present invention, provided detailed mode of execution and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment
As depicted in figs. 1 and 2; The present invention includes: suction tude 1, gas compressor 2, coupling shaft 3, gas compressor steam outlet pipe 4, intercooler 5, intake manifold 6, motor 7, exhaust manifold 8, turbine 9, outlet pipe 10, first connecting tube 11, second connecting tube 12, cavity volume 13, cavity volume upper wall surface 14, cavity volume lower wall surface 15, cavity volume left side wall 16, the right wall 17 of cavity volume, cavity volume front face 18, cavity volume rear surface 19, elastic member 20, moving body 21 and the 3rd connecting tube 22; The air outlet of suction tude 1 is connected with the suction port of gas compressor 2; The air outlet of gas compressor 2 is connected with the suction port of gas compressor steam outlet pipe 4; The air outlet of gas compressor steam outlet pipe 4 is connected with the suction port of intercooler 5; The air outlet of intercooler 5 is connected with intake manifold 6 suction port; Intake manifold 6 air outlet is connected with the suction port of motor 7, and the air outlet of motor 7 is connected with the suction port of exhaust manifold 8, and the air outlet of exhaust manifold 8 is connected with the suction port of turbine 9; The air outlet of turbine 9 is connected with the suction port of outlet pipe 10; Gas compressor 2 is connected with turbine 9 through coupling shaft 3, and cavity volume upper wall surface 14, cavity volume lower wall surface 15, cavity volume left side wall 16, the right wall 17 of cavity volume, cavity volume front face 18, cavity volume rear surface 19 fix as one, and first connecting tube 11 is installed between suction tude 1 and the cavity volume left side wall 16; Second connecting tube 12 is installed between outlet pipe 10 and the right wall 17 of cavity volume; The 3rd connecting tube 22 is installed between intake manifold 6 and the cavity volume upper wall surface 14, and the cross section of cavity volume 13 is a rectangular, and moving body 21 is installed in the cavity volume 13 and with the internal face sealing of cavity volume 13 and contacts; Moving body 21 is connected with cavity volume upper wall surface 14 through elastic member 20, and elastic member 20 is a spring.
In working procedure of the present invention, moving body 21 can move up and down in cavity volume 13.When motor was in the middling speed operating mode, the suction pressure in the intake manifold 6 was lower, and moving body 21 moves up under the effect of elastic member 20, and exhaust gas recirculation rate increases, and row's temperature drop is low, and motor complete machine performance is more excellent; When motor was in high-speed working condition, the suction pressure in the intake manifold 6 was higher, thereby moving body 21 is moved down after the elastic force that overcomes elastic member 20, and exhaust gas recirculation rate reduces, and engine power performance is better, and motor complete machine performance is more excellent.Therefore, the present invention can take into account preferably motor in high rotating speed operating mode.
Claims (2)
1. exhaust gas recycling system of utilizing suction pressure to regulate; Comprise suction tude (1), gas compressor (2), coupling shaft (3), gas compressor steam outlet pipe (4), intercooler (5), intake manifold (6), motor (7), exhaust manifold (8), turbine (9) and outlet pipe (10); The air outlet of suction tude (1) is connected with the suction port of gas compressor (2); The air outlet of gas compressor (2) is connected with the suction port of gas compressor steam outlet pipe (4); The air outlet of gas compressor steam outlet pipe (4) is connected with the suction port of intercooler (5); The air outlet of intercooler (5) is connected with intake manifold's (6) suction port; Intake manifold's (6) air outlet is connected with the suction port of motor (7); The air outlet of motor (7) is connected with the suction port of exhaust manifold (8); The air outlet of exhaust manifold (8) is connected with the suction port of turbine (9), and the air outlet of turbine (9) is connected with the suction port of outlet pipe (10), and gas compressor (2) is connected with turbine (9) through coupling shaft (3); It is characterized in that also comprising first connecting tube (11), second connecting tube (12), cavity volume (13), cavity volume upper wall surface (14), cavity volume lower wall surface (15), cavity volume left side wall (16), the right wall (17) of cavity volume, cavity volume front face (18), cavity volume rear surface (19), elastic member (20), moving body (21) and the 3rd connecting tube (22); Cavity volume upper wall surface (14), cavity volume lower wall surface (15), cavity volume left side wall (16), the right wall (17) of cavity volume, cavity volume front face (18), cavity volume rear surface (19) fix as one, and first connecting tube (11) is installed between suction tude (1) and the cavity volume left side wall (16), and second connecting tube (12) is installed between outlet pipe (10) and the right wall of cavity volume (17); The 3rd connecting tube (22) is installed between intake manifold (6) and the cavity volume upper wall surface (14); The cross section of cavity volume (13) is a rectangular, and moving body (21) is installed in the cavity volume (13) and with the internal face sealing of cavity volume (13) and contacts, and moving body (21) is connected with cavity volume upper wall surface (14) through elastic member (20).
2. the exhaust gas recycling system of utilizing suction pressure to regulate according to claim 1 is characterized in that said elastic member (20) is a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100266491A CN102562370A (en) | 2012-02-07 | 2012-02-07 | Exhaust recirculating system controlled by intake pressure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100266491A CN102562370A (en) | 2012-02-07 | 2012-02-07 | Exhaust recirculating system controlled by intake pressure |
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| CN102562370A true CN102562370A (en) | 2012-07-11 |
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| CN2012100266491A Pending CN102562370A (en) | 2012-02-07 | 2012-02-07 | Exhaust recirculating system controlled by intake pressure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767449A (en) * | 2012-07-31 | 2012-11-07 | 上海交通大学 | Cross gas intake and exhaust system |
| CN103195615A (en) * | 2013-03-22 | 2013-07-10 | 上海交通大学 | Differential pressure type mechanical adjusting system |
| CN103670812A (en) * | 2013-11-27 | 2014-03-26 | 上海交通大学 | Intake pressure regulating type valve rotating mechanism |
| CN105020060A (en) * | 2015-07-17 | 2015-11-04 | 上海交通大学 | Throttling maximum temperature adjusting device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5379744A (en) * | 1992-11-26 | 1995-01-10 | Audi Ag | Method and apparatus for controlling the amount of exhaust gas recycled in an internal combustion engine |
| JPH1162721A (en) * | 1997-08-07 | 1999-03-05 | Isuzu Motors Ltd | Exhaust gas recirculation device |
| CN201318227Y (en) * | 2008-11-13 | 2009-09-30 | 山东大学 | Mechanical control type waste gas recycling device |
| JP2010127114A (en) * | 2008-11-25 | 2010-06-10 | Mitsubishi Heavy Ind Ltd | Exhaust gas recirculation device |
| CN101960132A (en) * | 2008-01-03 | 2011-01-26 | 法雷奥电机控制系统公司 | Motor vehicle internal combustion engine egr loop |
-
2012
- 2012-02-07 CN CN2012100266491A patent/CN102562370A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5379744A (en) * | 1992-11-26 | 1995-01-10 | Audi Ag | Method and apparatus for controlling the amount of exhaust gas recycled in an internal combustion engine |
| JPH1162721A (en) * | 1997-08-07 | 1999-03-05 | Isuzu Motors Ltd | Exhaust gas recirculation device |
| CN101960132A (en) * | 2008-01-03 | 2011-01-26 | 法雷奥电机控制系统公司 | Motor vehicle internal combustion engine egr loop |
| CN201318227Y (en) * | 2008-11-13 | 2009-09-30 | 山东大学 | Mechanical control type waste gas recycling device |
| JP2010127114A (en) * | 2008-11-25 | 2010-06-10 | Mitsubishi Heavy Ind Ltd | Exhaust gas recirculation device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767449A (en) * | 2012-07-31 | 2012-11-07 | 上海交通大学 | Cross gas intake and exhaust system |
| CN103195615A (en) * | 2013-03-22 | 2013-07-10 | 上海交通大学 | Differential pressure type mechanical adjusting system |
| CN103670812A (en) * | 2013-11-27 | 2014-03-26 | 上海交通大学 | Intake pressure regulating type valve rotating mechanism |
| CN105020060A (en) * | 2015-07-17 | 2015-11-04 | 上海交通大学 | Throttling maximum temperature adjusting device |
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Application publication date: 20120711 |
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