CN103195615A - Differential pressure type mechanical adjusting system - Google Patents
Differential pressure type mechanical adjusting system Download PDFInfo
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- CN103195615A CN103195615A CN2013100952611A CN201310095261A CN103195615A CN 103195615 A CN103195615 A CN 103195615A CN 2013100952611 A CN2013100952611 A CN 2013100952611A CN 201310095261 A CN201310095261 A CN 201310095261A CN 103195615 A CN103195615 A CN 103195615A
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- cavity volume
- connecting tube
- moving body
- pipe
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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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- Supercharger (AREA)
Abstract
The invention belongs to the technical field of mechanical design and discloses a differential pressure type mechanical adjusting system. The differential pressure type mechanical adjusting system comprises an air inlet pipe, an engine, an air exhaust pipe, a compressor, a turbine, a connecting pipe, a volume chamber, a moving body and a spring, wherein the connecting pipe is communicated with the wall face of the volume chamber, the moving body is installed inside the volume chamber and contacts with the inner wall face of the volume chamber in a sealing mode, a penetrating pipe penetrates through the left wall face and the right wall face of the moving body, and two ends of the spring are connected with an upper wall face of the moving body and an upper wall face of the volume chamber respectively. When the engine is kept under the intermediate and low speed working conditions, the moving body moves upwards inside the volume chamber, the waste gas recirculation rate is high, exhaust temperatures of all cylinders of the engine are low, the whole machine performance is good; and when the engine is kept under the high speed working condition, the moving body moves downwards inside the volume chamber, the waste gas recirculation rate is low, the dynamic performance of the engine is good, and the whole machine performance is good. The system is reasonable in design, simple in structure and applicable to waste gas recirculation systems with turbochargers.
Description
Technical field
What the present invention relates to is a kind of gas recirculation system of mechanical design field, particularly a kind of differential mechanical control system 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, it is the top priority of being engaged in the diesel engine artificer.Gas recirculation system is to send the sub-fraction of the waste gas of diesel engine generation back to cylinder again.Exhaust gas recirculation 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 middle low speed operating mode, motor needs bigger ER EGR Rate, to reduce row's temperature, reduces to pollute; When high-speed working condition, motor needs less ER EGR Rate, to improve the power character of motor.
Find through the retrieval to the prior art document, China Patent No. 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 ER EGR Rate variation be to realize by special control structure, thereby the more complicated that control system is become.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, a kind of differential mechanical control system is provided, make its ER EGR Rate can self-control, take into account each rotating speed operating mode of motor preferably, and simple in structure, do not need special control mechanism.
The present invention is achieved through the following technical solutions, the present invention includes: the compressor air inlet machine pipe, gas compressor, engine air inlet tube, motor, engine exhaust pipe, turbine, turbine exhaust pipe, coupling shaft, cavity volume, the cavity volume upper wall surface, the cavity volume lower wall surface, cavity volume left side wall, the right wall of cavity volume, the cavity volume front face, the cavity volume rear surface, moving body, spring, first connecting tube, second connecting tube, the 3rd connecting tube, run through pipe and the 4th connecting tube, the air inlet/outlet of gas compressor respectively with the air outlet of compressor air inlet machine pipe, the suction port of engine air inlet tube is connected, the air inlet/outlet of motor respectively with the air outlet of engine air inlet tube, the suction port of engine exhaust pipe is connected, the air inlet/outlet of turbine respectively with the air outlet of engine exhaust pipe, the suction port of turbine exhaust pipe is connected, gas compressor is connected with turbine by coupling shaft, the cross section of cavity volume is rectangular, the cavity volume upper wall surface, the cavity volume lower wall surface, cavity volume left side wall, the right wall of cavity volume, the cavity volume front face, the cavity volume rear surface is fixed to be one, the two ends of first connecting tube respectively with cavity volume left side wall, one end of the 4th connecting tube is connected, the other end of the 4th connecting tube is connected with the compressor air inlet machine pipe, the two ends of second connecting tube respectively with engine exhaust pipe, the right wall of cavity volume is connected, the two ends of the 3rd connecting tube respectively with engine air inlet tube, the cavity volume upper wall surface is connected, first connecting tube, second connecting tube, run through that pipe is straight pipe and internal diameter is 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, moving body is installed in the cavity volume and with the internal face sealing of cavity volume and is contacted, run through pipe run through moving body about two walls, the two ends of spring respectively with the upper wall surface of moving body, the cavity volume upper wall surface is connected.
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 air inlet tube internal pressure is lower, the cavity volume internal pressure of moving body top is also lower, moving body moves up under the stretching action of spring, thereby first connecting tube is connected with second connecting tube by running through pipe, ER EGR 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 air inlet tube internal pressure is higher, the cavity volume internal pressure of moving body top is also higher, moving body moves down after overcoming the elastic force of spring and extension spring, thereby first connecting tube and second connecting tube are cut off mutually, ER EGR 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 gas recirculation system that has turbosupercharger, can take into account each rotating speed operating mode of motor, can make gas recirculation system not need special ER EGR Rate control mechanism again.
Description of drawings
Fig. 1 is the structural representation of the differential mechanical control system of 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, 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, cavity volume rear surface, 16, moving body, 17, spring, 18, first connecting tube, 19, second connecting tube, 20, the 3rd connecting tube, 21, run through pipe, the 22, the 4th connecting tube.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, present embodiment is prerequisite with the technical solution 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, spring 17, first connecting tube 18, second connecting tube 19, the 3rd connecting tube 20, run through pipe the 21 and the 4th connecting tube 22, the air inlet/outlet of gas compressor 2 respectively with the air outlet of compressor air inlet machine pipe 1, the suction port of engine air inlet tube 3 is connected, the air inlet/outlet of motor 4 respectively with the air outlet of engine air inlet tube 3, the suction port of engine exhaust pipe 5 is connected, the air inlet/outlet of turbine 6 respectively with the air outlet of engine exhaust pipe 5, the suction port of turbine exhaust pipe 7 is connected, gas compressor 2 is connected with turbine 6 by coupling shaft 8, the cross section of cavity volume 9 is 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 is fixed to be one, the two ends of first connecting tube respectively with cavity volume left side wall, one end of the 4th connecting tube is connected, the other end of the 4th connecting tube 22 is connected with compressor air inlet machine pipe 1, the two ends of second connecting tube 19 respectively with engine exhaust pipe 5, the right wall 13 of cavity volume is connected, the two ends of the 3rd connecting tube 20 respectively with engine air inlet tube 3, cavity volume upper wall surface 10 is connected, first connecting tube 18, second connecting tube 19, run through the pipe 21 be straight pipe and internal diameter 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, moving body 16 is installed in the cavity volume 9 and with the internal face sealing of cavity volume 9 and is contacted, run through pipe 21 run through moving body 16 about two walls, the two ends of spring 17 respectively with the upper wall surface of moving body 16, cavity volume upper wall surface 10 is connected.
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 air inlet tube 3 internal pressures are lower, the cavity volume internal pressure of moving body 16 tops is also lower, moving body 16 moves up under the stretching action of spring 17, thereby first connecting tube 18 is connected with second connecting tube 19 by running through pipe 21, ER EGR 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 air inlet tube 3 internal pressures are higher, the cavity volume internal pressure of moving body 16 tops is also higher, moving body 16 moves down after the elastic force that overcomes spring 17 and extension spring 17, thereby first connecting tube 18 and second connecting tube 19 are cut off mutually, ER EGR 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 (1)
1. differential mechanical control system, 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) respectively with the air outlet of compressor air inlet machine pipe (1), the suction port of engine air inlet tube (3) is connected, the air inlet/outlet of motor (4) respectively with the air outlet of engine air inlet tube (3), the suction port of engine exhaust pipe (5) is connected, the air inlet/outlet of turbine (6) respectively with the air outlet of engine exhaust pipe (5), the suction port of turbine exhaust pipe (7) is connected, gas compressor (2) is connected with turbine (6) by coupling shaft (8), it is characterized in that, also comprise 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), spring (17), first connecting tube (18), second connecting tube (19), the 3rd connecting tube (20), run through pipe (21) and the 4th connecting tube (22), the cross section of cavity volume (9) is 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) is fixed to be one, the two ends of first connecting tube (18) respectively with cavity volume left side wall (12), one end of the 4th connecting tube (22) is connected, the other end of the 4th connecting tube (22) is connected with compressor air inlet machine pipe (1), the two ends of second connecting tube (19) respectively with engine exhaust pipe (5), the right wall of cavity volume (13) is connected, the two ends of the 3rd connecting tube (20) respectively with engine air inlet tube (3), cavity volume upper wall surface (10) is connected, 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, moving body (16) is installed in the cavity volume (9) and with the internal face sealing of cavity volume (9) and is contacted, run through pipe (21) run through moving body (16) about two walls, the two ends of spring (17) respectively with the upper wall surface of moving body (16), cavity volume upper wall surface (10) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100952611A CN103195615A (en) | 2013-03-22 | 2013-03-22 | Differential pressure type mechanical adjusting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100952611A CN103195615A (en) | 2013-03-22 | 2013-03-22 | Differential pressure type mechanical adjusting system |
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| CN103195615A true CN103195615A (en) | 2013-07-10 |
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| CN2013100952611A Pending CN103195615A (en) | 2013-03-22 | 2013-03-22 | Differential pressure type mechanical adjusting system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791083A (en) * | 2015-03-30 | 2015-07-22 | 上海交通大学 | Pressure coordination control device |
| CN104791081A (en) * | 2015-03-30 | 2015-07-22 | 上海交通大学 | Pressure comparison adjustment system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536524A (en) * | 2012-02-07 | 2012-07-04 | 上海交通大学 | Exhaust-pressure regulated exhaust-gas recirculating system |
| CN102562370A (en) * | 2012-02-07 | 2012-07-11 | 上海交通大学 | Exhaust recirculating system controlled by intake pressure |
| CN102787948A (en) * | 2012-07-12 | 2012-11-21 | 上海交通大学 | Exhaust recycling device |
| CN102808699A (en) * | 2012-08-09 | 2012-12-05 | 上海交通大学 | Disconnecting and connecting shifter for two gas circuits |
-
2013
- 2013-03-22 CN CN2013100952611A patent/CN103195615A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536524A (en) * | 2012-02-07 | 2012-07-04 | 上海交通大学 | Exhaust-pressure regulated exhaust-gas recirculating system |
| CN102562370A (en) * | 2012-02-07 | 2012-07-11 | 上海交通大学 | Exhaust recirculating system controlled by intake pressure |
| CN102787948A (en) * | 2012-07-12 | 2012-11-21 | 上海交通大学 | Exhaust recycling device |
| CN102808699A (en) * | 2012-08-09 | 2012-12-05 | 上海交通大学 | Disconnecting and connecting shifter for two gas circuits |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791083A (en) * | 2015-03-30 | 2015-07-22 | 上海交通大学 | Pressure coordination control device |
| CN104791081A (en) * | 2015-03-30 | 2015-07-22 | 上海交通大学 | Pressure comparison adjustment system |
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Application publication date: 20130710 |