CN102767438A - High-pressure stage loop device using exhaust gas as gas source - Google Patents
High-pressure stage loop device using exhaust gas as gas source Download PDFInfo
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- CN102767438A CN102767438A CN2012102548492A CN201210254849A CN102767438A CN 102767438 A CN102767438 A CN 102767438A CN 2012102548492 A CN2012102548492 A CN 2012102548492A CN 201210254849 A CN201210254849 A CN 201210254849A CN 102767438 A CN102767438 A CN 102767438A
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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 high-pressure stage loop device using an exhaust gas as a gas source in the technical field of internal combustion engines. The high-pressure stage loop device comprises a gas inlet pipe, an engine, an exhaust pipe, a gas compressor, a turbine, a connecting pipe, a capacity cavity, a moving body and an elastic component, wherein the connecting pipe is communicated with the wall surface of the capacity cavity; the moving body is arranged in the capacity cavity and is in sealed contact with the inner wall surface of the capacity cavity; a through pipe penetrates through the left wall surface and the right wall surface of the moving body; and two ends of the elastic component are respectively connected with the upper wall surface of the moving body and the upper wall surface of the capacity cavity. When the engine is under a medium-low speed working condition, the moving body moves downwards in the capacity cavity, the exhaust recycling rate is large, the exhaust temperature of each cylinder of the engine is low, and the performance of the entire engine is excellent; and when the engine is under a high-speed working condition, the moving body moves upwards in the capacity cavity, the exhaust recycling rate is small, the dynamic property of the engine is good, and the performance of the entire engine is excellent. The high-pressure stage loop device is reasonable in design and simple in structure, and is suitable for an exhaust recycling system provided with a turbocharger.
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 have a turbosupercharger utilize the high pressure stage loop apparatus of exhaust as source of the gas.
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 exhaust gas recirculation rate total extraction flow is reduced, so total pollutant output quantity will reduce relatively in the toxic emission.When middle low 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 high pressure stage loop apparatus that utilizes exhaust as source of the gas is provided, has made its exhaust gas recirculation rate can self-control, taken into account each rotating speed operating mode of motor preferably; And simple in structure, do not need special control mechanism.
The present invention realizes through following technological scheme; The present invention includes: compressor air inlet machine pipe, gas compressor, engine air inlet tube, motor, engine exhaust pipe, turbine, turbine exhaust pipe, coupling shaft, cavity volume, cavity volume upper wall surface, cavity volume lower wall surface, cavity volume left side wall, cavity volume right wall, cavity volume front face, cavity volume rear surface, moving body, elastic member, first connecting tube, second connecting tube, the 3rd connecting tube and run through pipe; The air inlet/outlet of gas compressor is connected with the air outlet of compressor air inlet machine pipe, the suction port of engine air inlet tube respectively; The air inlet/outlet of motor is connected with the air outlet of engine air inlet tube, the suction port of engine exhaust pipe respectively; The air inlet/outlet of turbine is connected with the air outlet of engine exhaust pipe, the suction port of turbine exhaust pipe respectively; Gas compressor is connected with turbine through coupling shaft; The cross section of cavity volume is a rectangular; Cavity volume upper wall surface, cavity volume lower wall surface, cavity volume left side wall, cavity volume right wall, cavity volume front face, the cavity volume rear surface is fixed is one; The two ends of first connecting tube are connected with engine air inlet tube, cavity volume left side wall respectively; The two ends of second connecting tube are connected with engine exhaust pipe, the right wall of cavity volume respectively, and the two ends of the 3rd connecting tube are connected with engine exhaust pipe, cavity volume lower wall surface respectively, contact in the moving body mounting volume chamber and with the internal face sealing of cavity volume; Run through the pipe run through moving body about two walls, the two ends of elastic member are connected with upper wall surface, the cavity volume upper wall surface of moving body respectively.
Further; In the present invention, elastic member is a spring, first connecting tube, second connecting tube, run through the pipe be straight pipe and internal diameter identical; The dead in line of the axis of first connecting tube and second connecting tube, the axis of first connecting tube and the axis that runs through pipe are at grade.
In working procedure of the present invention, moving body can move up and down in cavity volume.In motor is in during the low speed operating mode; The engine exhaust pipe internal pressure is lower, and the cavity volume internal pressure of moving body below is also lower, and moving body moves down under the elastic reaction of elastic member; Thereby first connecting tube is connected with second connecting tube through running through pipe; Exhaust gas recirculation rate increases, and each cylinder row temperature drop of motor is low, and the complete machine performance is more excellent; When motor is in high-speed working condition; The engine exhaust pipe internal pressure is higher, and the cavity volume internal pressure of moving body below is also higher, and moving body moves up after overcoming the elastic force of elastic member and the pressure elasticity parts; Thereby first connecting tube is cut off mutually with second connecting tube; Exhaust gas recirculation rate reduces, and engine power performance is better, and the 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 each rotating speed operating mode of motor, 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 exhaust as the high pressure stage loop apparatus of source of the gas for the present invention;
Fig. 2 is the structural representation of A-A section among Fig. 1;
Wherein: 1, compressor air inlet machine pipe, 2, gas compressor, 3, engine air inlet tube, 4, motor, 5, engine exhaust pipe, 6, turbine; 7, turbine exhaust pipe, 8, coupling shaft, 9, cavity volume, 10, the cavity volume upper wall surface, 11, the cavity volume lower wall surface; 12, cavity volume left side wall, 13, the right wall of cavity volume, 14, the cavity volume front face, 15, the cavity volume rear surface, 16, moving body; 17, elastic member, 18, first connecting tube, 19, second connecting tube, the 20, the 3rd connecting tube, 21, run through pipe.
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: compressor air inlet machine pipe 1, gas compressor 2, engine air inlet tube 3, motor 4, engine exhaust pipe 5, turbine 6, turbine exhaust pipe 7, coupling shaft 8, cavity volume 9, cavity volume upper wall surface 10, cavity volume lower wall surface 11, cavity volume left side wall 12, the right wall 13 of cavity volume, cavity volume front face 14, cavity volume rear surface 15, moving body 16, elastic member 17, first connecting tube 18, second connecting tube 19, the 3rd connecting tube 20 and run through pipe 21; The air inlet/outlet of gas compressor 2 is connected with the air outlet of compressor air inlet machine pipe 1, the suction port of engine air inlet tube 3 respectively; The air inlet/outlet of motor 4 is connected with the air outlet of engine air inlet tube 3, the suction port of engine exhaust pipe 5 respectively; The air inlet/outlet of turbine 6 is connected with the air outlet of engine exhaust pipe 5, the suction port of turbine exhaust pipe 7 respectively; Gas compressor 2 is connected with turbine 6 through coupling shaft 8; The cross section of cavity volume 9 is a rectangular; Cavity volume upper wall surface 10, cavity volume lower wall surface 11, cavity volume left side wall 12, the right wall 13 of cavity volume, cavity volume front face 14, cavity volume rear surface 15 are fixed to be one; The two ends of first connecting tube 18 are connected with engine air inlet tube 3, cavity volume left side wall 12 respectively; The two ends of second connecting tube 19 are connected with engine exhaust pipe 5, the right wall 13 of cavity volume respectively, and the two ends of the 3rd connecting tube 20 are connected with engine exhaust pipe 5, cavity volume lower wall surface 11 respectively, contact in the moving body 16 mounting volume chambeies 9 and with the internal face sealing of cavity volume 9; Run through the pipe 21 run through moving body 16 about two walls; The two ends of elastic member 17 are connected with upper wall surface, the cavity volume upper wall surface 10 of moving body 16 respectively, and elastic member 17 is a spring, first connecting tube 18, second connecting tube 19, run through that pipe 21 is straight pipe and internal diameter is identical; The dead in line of the axis of first connecting tube 18 and second connecting tube 19, the axis of first connecting tube 18 with run through pipe 21 axis at grade.
In working procedure of the present invention, moving body 16 can move up and down in cavity volume 9.In motor 4 is in during the low speed operating mode; Engine exhaust pipe 5 internal pressures are lower, and the cavity volume internal pressure of moving body 16 belows is also lower, and moving body 16 moves down under the elastic reaction of elastic member 17; Thereby first connecting tube 18 is connected with second connecting tube 19 through running through pipe 21; Exhaust gas recirculation rate increases, and each cylinder row temperature drop of motor 4 is low, and the complete machine performance is more excellent; When motor is in high-speed working condition; Engine exhaust pipe 5 internal pressures are higher, and the cavity volume internal pressure of moving body 16 belows is also higher, and moving body 16 moves up after the elastic force that overcomes elastic member 17 and pressure elasticity parts 17; Thereby first connecting tube 18 is cut off mutually with second connecting tube 19; Exhaust gas recirculation rate reduces, and the power character of motor 4 is better, and the complete machine performance is more excellent.Therefore, the present invention can take into account each rotating speed operating mode of motor 4 preferably.
Claims (2)
1. high pressure stage loop apparatus that utilizes exhaust as source of the gas; Comprise compressor air inlet machine pipe (1), gas compressor (2), engine air inlet tube (3), motor (4), engine exhaust pipe (5), turbine (6), turbine exhaust pipe (7) and coupling shaft (8); The air inlet/outlet of gas compressor (2) is connected with the air outlet of compressor air inlet machine pipe (1), the suction port of engine air inlet tube (3) respectively; The air inlet/outlet of motor (4) is connected with the air outlet of engine air inlet tube (3), the suction port of engine exhaust pipe (5) respectively; The air inlet/outlet of turbine (6) is connected with the air outlet of engine exhaust pipe (5), the suction port of turbine exhaust pipe (7) respectively; Gas compressor (2) is connected with turbine (6) through coupling shaft (8); It is characterized in that also comprising cavity volume (9), cavity volume upper wall surface (10), cavity volume lower wall surface (11), cavity volume left side wall (12), cavity volume right wall (13), cavity volume front face (14), cavity volume rear surface (15), moving body (16), elastic member (17), first connecting tube (18), second connecting tube (19), the 3rd connecting tube (20) and run through pipe (21); The cross section of cavity volume (9) is a rectangular; Cavity volume upper wall surface (10), cavity volume lower wall surface (11), cavity volume left side wall (12), cavity volume right wall (13), cavity volume front face (14), cavity volume rear surface (15) is fixed is one; The two ends of first connecting tube (18) are connected with engine air inlet tube (3), cavity volume left side wall (12) respectively; The two ends of second connecting tube (19) are connected with engine exhaust pipe (5), the right wall of cavity volume (13) respectively; The two ends of the 3rd connecting tube (20) are connected with engine exhaust pipe (5), cavity volume lower wall surface (11) respectively; Contact in moving body (16) the mounting volume chamber (9) and with the internal face sealing of cavity volume (9); Run through pipe (21) run through moving body (16) about two walls, the two ends of elastic member (17) are connected with upper wall surface, the cavity volume upper wall surface (10) of moving body (16) respectively.
2. the high pressure stage loop apparatus that utilizes exhaust as source of the gas according to claim 1; It is characterized in that said elastic member (17) is a spring; Said first connecting tube (18), second connecting tube (19), run through that pipe (21) is straight pipe and internal diameter is identical; The dead in line of the axis of first connecting tube (18) and second connecting tube (19), the axis of first connecting tube (18) and the axis that runs through pipe (21) are at grade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102548492A CN102767438A (en) | 2012-07-23 | 2012-07-23 | High-pressure stage loop device using exhaust gas as gas source |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012102548492A CN102767438A (en) | 2012-07-23 | 2012-07-23 | High-pressure stage loop device using exhaust gas as gas source |
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| CN102767438A true CN102767438A (en) | 2012-11-07 |
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| CN2012102548492A Pending CN102767438A (en) | 2012-07-23 | 2012-07-23 | High-pressure stage loop device using exhaust gas as gas source |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541824A (en) * | 2013-09-24 | 2014-01-29 | 上海交通大学 | Pressure unbalanced type valve body lifting adjusting mechanism |
| CN103541823A (en) * | 2013-09-24 | 2014-01-29 | 上海交通大学 | Annular shaft-valve simultaneous rotation system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3307265A1 (en) * | 1983-03-02 | 1984-09-06 | Volkswagenwerk Ag, 3180 Wolfsburg | Control device for injection pumps |
| CN1107203A (en) * | 1994-08-17 | 1995-08-23 | 周玉梅 | Inner combustion engine energy-saving device with automatically adjustable heat-exchanging and pressure-increasing |
| US20080029054A1 (en) * | 2006-08-02 | 2008-02-07 | Frederico Lancioni | Variable-geometry intake manifold for an internal-combustion engine |
| CN102536524A (en) * | 2012-02-07 | 2012-07-04 | 上海交通大学 | Exhaust-pressure regulated exhaust-gas recirculating system |
| CN102588152A (en) * | 2012-02-07 | 2012-07-18 | 上海交通大学 | Self-adjusting exhaust gas recycling system |
-
2012
- 2012-07-23 CN CN2012102548492A patent/CN102767438A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3307265A1 (en) * | 1983-03-02 | 1984-09-06 | Volkswagenwerk Ag, 3180 Wolfsburg | Control device for injection pumps |
| CN1107203A (en) * | 1994-08-17 | 1995-08-23 | 周玉梅 | Inner combustion engine energy-saving device with automatically adjustable heat-exchanging and pressure-increasing |
| US20080029054A1 (en) * | 2006-08-02 | 2008-02-07 | Frederico Lancioni | Variable-geometry intake manifold for an internal-combustion engine |
| CN102536524A (en) * | 2012-02-07 | 2012-07-04 | 上海交通大学 | Exhaust-pressure regulated exhaust-gas recirculating system |
| CN102588152A (en) * | 2012-02-07 | 2012-07-18 | 上海交通大学 | Self-adjusting exhaust gas recycling system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541824A (en) * | 2013-09-24 | 2014-01-29 | 上海交通大学 | Pressure unbalanced type valve body lifting adjusting mechanism |
| CN103541823A (en) * | 2013-09-24 | 2014-01-29 | 上海交通大学 | Annular shaft-valve simultaneous rotation system |
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Application publication date: 20121107 |