CN102808699A - Disconnecting and connecting shifter for two gas circuits - Google Patents
Disconnecting and connecting shifter for two gas circuits Download PDFInfo
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- CN102808699A CN102808699A CN2012102828192A CN201210282819A CN102808699A CN 102808699 A CN102808699 A CN 102808699A CN 2012102828192 A CN2012102828192 A CN 2012102828192A CN 201210282819 A CN201210282819 A CN 201210282819A CN 102808699 A CN102808699 A CN 102808699A
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Abstract
The invention discloses a disconnecting and connecting shifter for two gas circuits. The disconnecting and connecting shifter comprises a gas inlet tube, an engine, an exhaust pipe, a gas compressor, a turbine, a connecting tube, an accommodating cavity, a mobile body and an elastic part, wherein the connecting tube is communicated with the wall surface of the accommodating cavity; the mobile body is installed inside the accommodating cavity and is contacted with the inner wall surface of the accommodating cavity in a sealed manner; a through tube gets through left and right wall surfaces of the mobile body; and the two ends of the elastic part are respectively connected with the lower wall surfaces of the mobile body and the accommodating cavity. When the engine is at a medium-low speed working condition, the mobile body upwards moves in the accommodating cavity, so that the waste gas recirculation rate is large, the exhaust temperature of each cylinder of the engine is low, and the overall performance is excellent; when the engine is at a high-speed working condition, the mobile body downwards moves in the accommodating cavity, so that the waste gas recirculation rate is small, the dynamic performance of the engine is good, and the overall performance is excellent. The disconnecting and connecting shifter is rational in design and simple in structure, and is applicable to a waste gas recirculation system with a turbo-supercharger.
Description
Technical field
What the present invention relates to is a kind of gas recirculation system of field of internal combustion engine, and particularly a kind of two gas circuits that have turbosupercharger are cut off and the COMM communication that links to each other.
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.Gas recirculation 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 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.
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 ER EGR 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, provide a kind of two gas circuits to cut off and the COMM communication that links to each other, 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 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, run through pipe and the 4th connecting tube; 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 an end of cavity volume left side wall, the 4th connecting tube respectively, and the other end of the 4th connecting tube is connected with the compressor air inlet machine pipe, and the two ends of second connecting tube are connected with engine exhaust pipe, the right wall of cavity volume respectively; The two ends of the 3rd connecting tube are connected with engine air inlet tube, cavity volume upper wall surface respectively; Contact in the moving body mounting volume chamber and with the sealing of the internal face of cavity volume, run through manage run through moving body about two walls, the two ends of elastic member are connected with lower wall surface, the cavity volume lower 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 air inlet tube internal pressure is lower, and the cavity volume internal pressure of moving body top is also lower, and moving body moves up under the elastic reaction of elastic member; Thereby first connecting tube is connected with second connecting tube through 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, and the cavity volume internal pressure of moving body top is also higher, and moving body moves down 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; 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 present invention's two gas circuits partition with the COMM communication that links to each other;
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, elastic member, 18, first connecting tube; 19, second connecting tube, the 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 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, run through pipe the 21 and the 4th connecting tube 22; 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 are connected with an end of cavity volume left side wall, the 4th connecting tube respectively; 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 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 air inlet tube 3, cavity volume upper wall surface 10 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 lower wall surface, the cavity volume lower wall surface 11 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 air inlet tube 3 internal pressures are lower, and the cavity volume internal pressure of moving body 16 tops is also lower, and moving body 16 moves up 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; 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, and the cavity volume internal pressure of moving body 16 tops is also higher, and moving body 16 moves down 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; 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 (2)
1. a gas circuit is cut off and the COMM communication that links to each other; 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), run through pipe (21) and the 4th connecting tube (22); 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 an end of cavity volume left side wall (12), the 4th connecting tube (22) respectively; 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) 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 air inlet tube (3), cavity volume upper wall surface (10) 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 lower wall surface, the cavity volume lower wall surface (11) of moving body (16) respectively.
2. two gas circuits according to claim 1 are cut off and the COMM communication that links to each other; 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 |
|---|---|---|---|
| CN2012102828192A CN102808699A (en) | 2012-08-09 | 2012-08-09 | Disconnecting and connecting shifter for two gas circuits |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102828192A CN102808699A (en) | 2012-08-09 | 2012-08-09 | Disconnecting and connecting shifter for two gas circuits |
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| CN102808699A true CN102808699A (en) | 2012-12-05 |
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| CN2012102828192A Pending CN102808699A (en) | 2012-08-09 | 2012-08-09 | Disconnecting and connecting shifter for two gas circuits |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195615A (en) * | 2013-03-22 | 2013-07-10 | 上海交通大学 | Differential pressure type mechanical adjusting system |
| CN103291503A (en) * | 2013-05-24 | 2013-09-11 | 上海交通大学 | Rotary exhaust gas flow rate regulating system |
| CN103291469A (en) * | 2013-05-24 | 2013-09-11 | 上海交通大学 | Rotary gas valve control mechanism |
| CN103557097A (en) * | 2013-09-24 | 2014-02-05 | 上海交通大学 | Mechanical valve body lift control system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6295814B1 (en) * | 1997-04-23 | 2001-10-02 | Daimlerchrysler Ag | Internal-combustion engine with an exhaust gas turbocharger |
| JP2004245117A (en) * | 2003-02-13 | 2004-09-02 | Hino Motors Ltd | Internal combustion engine with supercharger |
| CN2924201Y (en) * | 2006-05-30 | 2007-07-18 | 宝山钢铁股份有限公司 | Automatic cutoff and pressure release plunger valve for pressure meter |
| US20100263371A1 (en) * | 2009-04-17 | 2010-10-21 | Jung-Chun Chen | Turbine intake pressure release structure |
| CN102562369A (en) * | 2012-02-07 | 2012-07-11 | 上海交通大学 | Exhaust recirculating system controlled by aid of air inlet pressure |
-
2012
- 2012-08-09 CN CN2012102828192A patent/CN102808699A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6295814B1 (en) * | 1997-04-23 | 2001-10-02 | Daimlerchrysler Ag | Internal-combustion engine with an exhaust gas turbocharger |
| JP2004245117A (en) * | 2003-02-13 | 2004-09-02 | Hino Motors Ltd | Internal combustion engine with supercharger |
| CN2924201Y (en) * | 2006-05-30 | 2007-07-18 | 宝山钢铁股份有限公司 | Automatic cutoff and pressure release plunger valve for pressure meter |
| US20100263371A1 (en) * | 2009-04-17 | 2010-10-21 | Jung-Chun Chen | Turbine intake pressure release structure |
| CN102562369A (en) * | 2012-02-07 | 2012-07-11 | 上海交通大学 | Exhaust recirculating system controlled by aid of air inlet pressure |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195615A (en) * | 2013-03-22 | 2013-07-10 | 上海交通大学 | Differential pressure type mechanical adjusting system |
| CN103291503A (en) * | 2013-05-24 | 2013-09-11 | 上海交通大学 | Rotary exhaust gas flow rate regulating system |
| CN103291469A (en) * | 2013-05-24 | 2013-09-11 | 上海交通大学 | Rotary gas valve control mechanism |
| CN103291469B (en) * | 2013-05-24 | 2015-10-28 | 上海交通大学 | Rotary air valve control mechanism |
| CN103291503B (en) * | 2013-05-24 | 2015-12-23 | 上海交通大学 | Rotary extraction flow regulating system |
| CN103557097A (en) * | 2013-09-24 | 2014-02-05 | 上海交通大学 | Mechanical valve body lift control system |
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Application publication date: 20121205 |