CN102536523A - Exhaust-gas recirculating system with volume cavity - Google Patents
Exhaust-gas recirculating system with volume cavity Download PDFInfo
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- CN102536523A CN102536523A CN201210026635XA CN201210026635A CN102536523A CN 102536523 A CN102536523 A CN 102536523A CN 201210026635X A CN201210026635X A CN 201210026635XA CN 201210026635 A CN201210026635 A CN 201210026635A CN 102536523 A CN102536523 A CN 102536523A
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- cavity volume
- exhaust
- moving body
- volume cavity
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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 an exhaust-gas recirculating system with a volume cavity in the technical field of internal-combustion engines, which comprises an air-inlet pipe, an engine, an exhaust pipe, a connecting pipe, the volume cavity, a moving body and an elastic part, wherein the cross section of the volume cavity is rectangular, the moving body is installed in the volume cavity and is hermetically contacted with the inner wall surface of the volume cavity, and the moving body is connected with the upper wall surface of the volume cavity through the elastic part. When the engine is under a high-speed working condition, the moving body upwards moves in the volume cavity, the exhaust-gas recirculating rate is larger, the exhaust temperature is lower, and the overall performance of the engine is more excellent; and when the engine is under a low-speed working condition, the moving body downwards moves in the volume cavity, the exhaust-gas recirculating rate is smaller, the air-inlet quantity is larger, and the overall performance of the engine is more excellent. The exhaust-gas recirculating system has a reasonable design and a simple structure and is applicable to the exhaust-gas recirculating system of the engine.
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 that has cavity volume.
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.
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 the high and low rotating speed operating mode of motor preferably; 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 that has cavity volume is provided, has made its exhaust gas recirculation rate can self-control, taken into account the high and low 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: comprise suction tude, motor, 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 and moving body; The air outlet of suction tude is connected with the suction port of motor; The air outlet of motor is connected with the suction port of outlet pipe; 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; 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, and the cross section of cavity volume is a rectangular; 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 high-speed working condition, exhaust pressure was higher in the outlet pipe, and moving body upwards moves in cavity volume, and elastic member is compressed, 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 the low speed operating mode, exhaust pressure was lower in the outlet pipe, and under the elastic reaction of elastic member, moving body moves down in cavity volume, and exhaust gas recirculation rate reduces, and air input of engine by air increases, 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, and is simple in structure, is applicable to the exhaust gas recycling system of motor; Can take into account the high and low 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 has the structural representation of the exhaust gas recycling system of cavity volume for the present invention;
Fig. 2 is the structural representation of A-A section among Fig. 1;
Wherein: 1, suction tude, 2, motor, 3, outlet pipe, 4, first connecting tube; 5, second connecting tube, 6, cavity volume, 7, the cavity volume upper wall surface, 8, the cavity volume lower wall surface; 9, cavity volume left side wall, 10, the right wall of cavity volume, 11, the cavity volume front face; 12, cavity volume rear surface, 13, elastic member, 14, moving body.
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, motor 2, outlet pipe 3, first connecting tube 4, second connecting tube 5, cavity volume 6, cavity volume upper wall surface 7, cavity volume lower wall surface 8, cavity volume left side wall 9, the right wall 10 of cavity volume, cavity volume front face 11, cavity volume rear surface 12, elastic member 13 and moving body 14; The air outlet of suction tude 1 is connected with the suction port of motor 2; The air outlet of motor 2 is connected with the suction port of outlet pipe 3; Cavity volume upper wall surface 7, cavity volume lower wall surface 8, cavity volume left side wall 9, the right wall 10 of cavity volume, cavity volume front face 11, cavity volume rear surface 12 fix as one; First connecting tube 4 is installed between suction tude 1 and the cavity volume left side wall 9; Second connecting tube 5 is installed between outlet pipe 3 and the right wall 10 of cavity volume, and the cross section of cavity volume 6 is a rectangular, and moving body 14 is installed in the cavity volume 6 and with the internal face sealing of cavity volume 6 and contacts; Moving body 14 is connected with cavity volume upper wall surface 7 through elastic member 13, and elastic member 13 is a spring.
In working procedure of the present invention, moving body 14 can move up and down in cavity volume 6.When motor was in high-speed working condition, exhaust pressure was higher in the outlet pipe 3, and moving body 14 upwards moves in cavity volume 6, and elastic member 13 is compressed, 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 the low speed operating mode, exhaust pressure was lower in the outlet pipe 3, and under the elastic reaction of elastic member 13, moving body 14 moves down in cavity volume 6, and exhaust gas recirculation rate reduces, and air input of engine by air increases, and motor complete machine performance is more excellent.Therefore, the present invention can take into account the high and low rotating speed operating mode of motor preferably.
Claims (2)
1. exhaust gas recycling system that has cavity volume; Comprise suction tude (1), motor (2) and outlet pipe (3); The air outlet of suction tude (1) is connected with the suction port of motor (2); The air outlet of motor (2) is connected with the suction port of outlet pipe (3); It is characterized in that also comprising first connecting tube (4), second connecting tube (5), cavity volume (6), cavity volume upper wall surface (7), cavity volume lower wall surface (8), cavity volume left side wall (9), the right wall (10) of cavity volume, cavity volume front face (11), cavity volume rear surface (12), elastic member (13) and moving body (14); Cavity volume upper wall surface (7), cavity volume lower wall surface (8), cavity volume left side wall (9), the right wall (10) of cavity volume, cavity volume front face (11), cavity volume rear surface (12) fix as one; First connecting tube (4) is installed between suction tude (1) and the cavity volume left side wall (9), and second connecting tube (5) is installed between outlet pipe (3) and the right wall of cavity volume (10), and the cross section of cavity volume (6) is a rectangular; Moving body (14) is installed in the cavity volume (6) and with the internal face sealing of cavity volume (6) and contacts, and moving body (14) is connected with cavity volume upper wall surface (7) through elastic member (13).
2. the exhaust gas recycling system that has cavity volume according to claim 1 is characterized in that said elastic member (13) is a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210026635XA CN102536523A (en) | 2012-02-07 | 2012-02-07 | Exhaust-gas recirculating system with volume cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210026635XA CN102536523A (en) | 2012-02-07 | 2012-02-07 | Exhaust-gas recirculating system with volume cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102536523A true CN102536523A (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210026635XA Pending CN102536523A (en) | 2012-02-07 | 2012-02-07 | Exhaust-gas recirculating system with volume cavity |
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| CN (1) | CN102536523A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145417A (en) * | 2019-06-28 | 2019-08-20 | 潍柴动力股份有限公司 | It is a kind of for promoting the pressurizing device of EGR rate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2727158A1 (en) * | 1994-11-17 | 1996-05-24 | Sagem Allumage | Control valve for selective recycling of IC engine exhaust gas |
| KR20020031671A (en) * | 2000-10-23 | 2002-05-03 | 이계안 | Exhast pipe apparatus |
| JP2008267151A (en) * | 2007-04-16 | 2008-11-06 | Nissan Diesel Motor Co Ltd | Valve structure |
| CN201318227Y (en) * | 2008-11-13 | 2009-09-30 | 山东大学 | Mechanical control type waste gas recycling device |
-
2012
- 2012-02-07 CN CN201210026635XA patent/CN102536523A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2727158A1 (en) * | 1994-11-17 | 1996-05-24 | Sagem Allumage | Control valve for selective recycling of IC engine exhaust gas |
| KR20020031671A (en) * | 2000-10-23 | 2002-05-03 | 이계안 | Exhast pipe apparatus |
| JP2008267151A (en) * | 2007-04-16 | 2008-11-06 | Nissan Diesel Motor Co Ltd | Valve structure |
| CN201318227Y (en) * | 2008-11-13 | 2009-09-30 | 山东大学 | Mechanical control type waste gas recycling device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145417A (en) * | 2019-06-28 | 2019-08-20 | 潍柴动力股份有限公司 | It is a kind of for promoting the pressurizing device of EGR rate |
| CN110145417B (en) * | 2019-06-28 | 2023-12-15 | 潍柴动力股份有限公司 | Pressurizing device for improving EGR rate |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120704 |