CN101100964A - Exhaust gas recirculation device of engine - Google Patents
Exhaust gas recirculation device of engine Download PDFInfo
- Publication number
- CN101100964A CN101100964A CNA2007100254737A CN200710025473A CN101100964A CN 101100964 A CN101100964 A CN 101100964A CN A2007100254737 A CNA2007100254737 A CN A2007100254737A CN 200710025473 A CN200710025473 A CN 200710025473A CN 101100964 A CN101100964 A CN 101100964A
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- Prior art keywords
- waste gas
- engine
- exhaust gas
- recirculation device
- inlet tube
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000002826 coolant Substances 0.000 claims abstract description 5
- 239000002912 waste gas Substances 0.000 claims description 140
- 239000007789 gas Substances 0.000 claims description 61
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
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Classifications
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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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- Exhaust-Gas Circulating Devices (AREA)
Abstract
This invention discloses engine exhaust gas recirculation device, which includes exhaust manifold, exhaust gas inlet pipe, exhaust gas distributing pipe and intake manifold. The said exhaust gas inlet pipe and exhaust gas distributing pipe are communicated through exhausting gas private channel. The said exhaust gas private channel is set in the water jacket of the engine cover. The external of exhaust gas private channel meets the cooling medium in the water jacket. This invention makes the structure compact and easy fixed. It also increases the working stability of engine cylinder. It is easy to assemble and repair.
Description
Technical field
The invention belongs to the technical field of automobile construction, relate to the motor car engine air exchange system, more particularly, the present invention relates to a kind of exhaust gas recirculation device of engine.
Background technique
Motor is not in the past almost considered the use Exhaust gas recirculation device.
At present, countries in the world are more and more stricter for the rules of motor vehicle emission; Energy supply and demand contradiction is increasingly sharpened.Facts of life forces Automobile Design teacher, especially engine design teacher, to the effulent of motor (as NO
X, CO, HC compound) and the oil consumption of motor extraordinarily pay close attention to.Various Exhaust gas recirculation device are arisen at the historic moment, and its objective is the inflammable matter in the waste gas is fully burnt.Described these Exhaust gas recirculation device can make a part of waste gas mix with new inflammable mixture again and enter the firing chamber; Minimizing can reduce the burning of gas temperature again simultaneously to the discharge amount of exhaust gas of atmosphere, reduces NO
X, CO and HC generation, reduce toxic emission; Make the sufficient mixing and burning of fuel oil energy, reduce oil consumption.In energy today in short supply day by day, especially show its significance.But,, still have some problems because this technology is in the firm development phase.The present employed Exhaust gas recirculation device of public technology, its structure is bigger, all be to use very long exhaust piping, utilize the air of car load front deck to come cooled exhaust air, cooling effect is poor, and the exhaust piping that temperature is very high causes life-span reduction, reliability to reduce to component on every side even causes component cisco unity malfunction on every side.Simultaneously very long exhaust piping is fixed also becomes a problem.
Relate to having of Exhaust gas recirculation device at present: China Patent No. is that the patent documentation of CN1637264 discloses a kind of gas recirculation system that is used for internal-combustion engine; China Patent No. is the patent documentation of CN1502801 Exhaust gas recirculation device of disclosing a kind of internal-combustion engine etc.But all have the problems referred to above in above-mentioned patented technology, its structure is bigger, and cooling effect is not good.
Summary of the invention
Problem to be solved by this invention provides a kind of exhaust gas recirculation device of engine, its objective is that to make this apparatus structure more compact and improve cooling effect.
To achieve these goals, the technological scheme that the present invention takes is: this exhaust gas recirculation device of engine that is provided, comprise gas exhaust manifold, waste gas inlet tube, waste gas distribution piping, intake manifold, between described waste gas inlet tube and the waste gas distribution piping, be communicated with by the waste gas designated lane, described waste gas designated lane is located in the water jacket that engine cylinder covers, and the periphery of waste gas designated lane contacts with cooling medium in the water jacket.
Described waste gas designated lane and engine cylinder cover are as a whole.
The present invention to the technological scheme that the waste gas inlet tube adopts is:
Described waste gas inlet tube is a waste gas inlet tube rigid section, and middle one section is waste gas inlet tube compliant section, and its structure is telescopic bellows.
Described waste gas inlet tube rigid section and waste gas inlet tube compliant section are resistant to elevated temperatures metallic material.
The inlet of described waste gas inlet tube is connected near the gas exhaust manifold outlet(discharge) flange of gas exhaust manifold.
The technological scheme that the present invention takes waste gas distribution piping and waste gas throttle orifice is:
Described waste gas distribution piping is arranged between intake manifold and the engine cylinder cover, establishes the waste gas throttle orifice at the mouth of pipe with intake manifold and engine cylinder cover joint of waste gas distribution piping, and the aperture of waste gas throttle orifice is less than the internal diameter of waste gas distribution piping.
The outlet of the intake manifold intake duct of described waste gas throttle orifice and intake manifold is all near the cylinder cap inlet mouth place of engine cylinder cover, and in the joint of intake manifold and intake manifold, forms the mixed airway that air inlet and waste gas mix mutually by the waste gas distribution piping.
EGR control valve is provided with the technological scheme of position and structure and is among the present invention:
Between described waste gas designated lane and the waste gas distribution piping, promptly EGR control valve is established in the outlet port of waste gas designated lane.
Described EGR control valve is provided with solenoid valve, the structure of described EGR control valve is a throttle valve, its spool is connected with the iron core of solenoid valve, and constitute the tapering valve port with valve seat, one end of valve port is the control valve exhaust gas entrance, the other end is the control valve waste gas outlet, and valve seat is installed in the valve body, and EGR control valve is fixed on the engine body by EGR control valve mounting hole and fastening screw trip bolt.
The control circuit of described solenoid valve is connected with engine electric-controlled unit.
The present invention adopts technique scheme, makes part egr conduit and cylinder cap integrate, and structure is compact more and be easy to fix; Cooling liquid cooled exhaust air with in the cylinder cap water jacket has improved cooling effect; Reduced amount of parts, little to the heat affecting of component around the egr conduit; Realization makes it adapt to the needs of air inlet to the control of EGR gas flow; The part of egr conduit adopts flexible conduit, reduces flow perturbation and expands with heat and contract with cold to the influence of air inlet gas circuit, has improved the stability of engine air cylinder working; Because the exhaust gas recirculation pipeline is shorter, and setting is more reasonable, so be easy for installation and maintenance.
Description of drawings
Below expressed content of each width of cloth accompanying drawing of this specification and the mark among the figure are made brief description:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of the waste gas inlet tube among the present invention;
Fig. 3 is the left view of structure shown in Figure 2;
Fig. 4 is the structural representation of EGR control valve involved in the present invention;
Fig. 5 is the schematic representation of the junction surface of intake manifold involved in the present invention and engine cylinder cover;
Fig. 6 is the sectional view of intake manifold, intake duct and waste gas distribution piping joint involved in the present invention.
Be labeled as among the figure: 1, engine body, 2, air outlet flue, 3, gas exhaust manifold, 4, the waste gas inlet tube, 5, the waste gas designated lane, 6, cooling medium, 7, the waste gas distribution piping, 8, EGR control valve, 9, the waste gas throttle orifice, 10, intake manifold, 11, the intake manifold intake duct, 12, the gas exhaust manifold attachment hole, 13, the gas exhaust manifold outlet(discharge) flange, 14, waste gas inlet tube compliant section, 15, waste gas inlet tube rigid section, 16, waste gas inlet tube adpting flange, 17, waste gas inlet tube mounting hole, 18, the EGR control valve mounting hole, 19, valve seat, 20, spool, 21, solenoid valve, 22, the control valve exhaust gas entrance, 23, valve body, 24, the control valve waste gas outlet, 25, waste gas distribution piping mounting hole, 26, waste gas distribution piping inlet, 27, waste gas distribution piping passage, 28, waste gas distribution piping mounting hole, 29, mixed airway, 30, engine cylinder cover, 31, water jacket, 32, the cylinder cap intake duct.
Embodiment
Contrast accompanying drawing below, by description to embodiment, to the effect of the mutual alignment between the shape of the specific embodiment of the present invention such as related each member, structure, the each several part and annexation, each several part and working principle etc., be described in further detail, inventive concept of the present invention, technological scheme had more complete, accurate and deep understanding to help those skilled in the art.
The of the present invention structure expressed as Fig. 1 to Fig. 6, the present invention is a kind of exhaust gas recirculation device of engine, its public technology generally comprises gas exhaust manifold 3, waste gas inlet tube 4, waste gas distribution piping 7, intake manifold 10, connect successively, form waste gas returns intake manifold 10 from gas exhaust manifold 3 gas circuit, make a part of unburned completely waste gas return the air inlet gas circuit again, and mix with new inflammable mixture and enter the firing chamber, rekindle acting, fuel saving and minimizing are to the toxic emission of atmosphere.In the middle of the gas exhaust manifold 3 is air outlet flue 3, by air outlet flue 3 with the waste gas in the cylinder by sending into gas exhaust manifold outlet(discharge) flange 13, send into exhaust manifold, and enter atmosphere.Some waste gas returns the air inlet gas circuit by above-mentioned path in addition.Gas exhaust manifold 3 is connected with engine body 1 by the gas exhaust manifold attachment hole 12 on the gas exhaust manifold outlet(discharge) flange 13, and its link is generally threaded fastener.Waste gas inlet tube 4 can adopt welding or bolton ways of connecting to be connected with gas exhaust manifold 3.Intake manifold intake duct 11 in the intake manifold 10 is sent the waste gas of the gas sent here among the intake manifold and recirculation to cylinder and is carried out work.
Problem for the existence that solves the exhaust gas recirculation device of engine that uses at the described present public technology of this specification background technique part, realization makes this apparatus structure more compact and improve the purpose of cooling effect, the technological scheme that the present invention takes is: as shown in Figure 1, this exhaust gas recirculation device of engine that is provided, between described waste gas inlet tube 4 and the waste gas distribution piping 7, be communicated with by waste gas designated lane 5, described waste gas designated lane 5 is located in the water jacket 31 on the engine cylinder cover 30, and the periphery of waste gas designated lane 5 contacts with cooling medium 6 in the water jacket 31.
On the waste gas inlet tube 4 with engine body 1 on waste gas designated lane 5 joints establish waste gas inlet tube adpting flange 16, have several waste gas inlet tube mounting holes 17 on waste gas inlet tube adpting flange 16, waste gas inlet tube adpting flange 16 can be fixed on the engine cylinder cover 30 by a plurality of waste gas inlet tube mounting holes 17 with fastening piece.Also can adopt the method for welding.
Technique scheme integrates part egr conduit and engine cylinder cover 30, and structure is compact more and be easy to fix; Cooling liquid cooled exhaust air with in the cylinder cap water jacket has improved cooling effect; Reduced amount of parts, reduced temperatures involved, avoided the reduction in its life-span and premature damage component around the egr conduit.Because pipeline is shorter, and setting is more reasonable, so be easy for installation and maintenance.
Because after egr conduit adopts such scheme, its shorten length, the disturbance of waste gas in egr conduit and the aggravation of the situation of expanding with heat and contract with cold can appear, so the present invention is further perfect such scheme, as shown in Figures 2 and 3, described waste gas inlet tube 4 is a waste gas inlet tube rigid section 15, and middle one section is waste gas inlet tube compliant section 14, and its structure is telescopic bellows.The part of exhaust piping adopts flexible conduit, reduces flow perturbation and expands with heat and contract with cold to the influence of air inlet gas circuit, has improved the stability of engine air cylinder working.Can change the length of waste gas inlet tube 4 according to the working condition requirement of motor at any time,, also be easy for installation and maintenance simultaneously to eliminate internal stress.Described waste gas inlet tube rigid section 15 and waste gas inlet tube compliant section 14 are resistant to elevated temperatures metallic material.Can satisfy the resistance to high temperature of metallic material, intensity and fatigue life the comparison bad working environment of motor.
As shown in Figure 5 and Figure 6, described waste gas distribution piping 7 is arranged between intake manifold 10 and the engine cylinder cover 30, the mouth of pipe with intake manifold 10 and engine cylinder cover 30 joints at waste gas distribution piping 7 is established waste gas throttle orifice 9, and the aperture of waste gas throttle orifice 9 is less than the internal diameter of waste gas distribution piping 7.Intake duct intake manifold intake duct 11 outlet of waste gas throttle orifice 9 and intake manifold 10 is all near the inlet mouth place of engine cylinder cover
Waste gas distribution piping 7 and waste gas throttle orifice 9 can be integrated on the part by casting and mach mode, are fixed on the engine cylinder cover 30 with bolt or other fastening piece then.
As shown in Figure 5 and Figure 6, intake manifold intake duct 11 outlet of described waste gas throttle orifice 9 and intake manifold 10 is all near cylinder cap intake duct 32 ingress of engine cylinder cover 30, and, form the mixed airway 29 that air inlet and waste gas mix mutually by waste gas distribution piping 7 in the joint of intake manifold 10 and intake manifold 10.
Waste gas distribution piping 7 can interconnect with intake manifold 10 and engine cylinder cover 30 usefulness fastening pieces.Fresh air mixes at air flue mixed airway 29 with the waste gas that waste gas throttle orifice from waste gas distribution piping 79 flows out from intake manifold intake duct 11, enters the cylinder cap intake duct 32 in the engine cylinder cover 30 jointly.
As shown in Figure 5, waste gas distribution piping 7 is provided with waste gas distribution piping mounting hole 25, waste gas distribution piping inlet 26, waste gas distribution piping passage 27, waste gas distribution piping mounting hole 28 and above-mentioned waste gas throttle orifice 9, also has above-mentioned 2 mixed airway 29.Waste gas distribution piping 7 can be connected on engine cylinder cover 30 and the EGR control valve described below 8 by waste gas distribution piping mounting hole 25, waste gas distribution piping mounting hole 28 with fastening piece; Waste gas through waste gas distribution piping passage 27, enters mixed airway 29 through waste gas throttle orifice 9 from waste gas distribution piping inlet 26 again, and enters cylinder work after fresh air that intake manifold 10 is sent here mixes.
As shown in Figure 4, between described waste gas designated lane 5 and the waste gas distribution piping 7, promptly EGR control valve 8 is established in the outlet port of waste gas designated lane 5.EGR control valve 8 can be controlled the flow of waste gas at any time according to the working condition requirement of motor.
Described EGR control valve 8 is provided with solenoid valve 21, the structure of described EGR control valve 8 is a throttle valve, its spool 20 is connected with the iron core of solenoid valve 21, and constitute the tapering valve ports with valve seat 19, one end of valve port is a control valve exhaust gas entrance 22, the other end is a control valve waste gas outlet 24, and valve seat 19 is installed in the valve body 23, and EGR control valve 8 is fixed on the engine body 1 by EGR control valve mounting hole 18 and fastening screw trip bolt.EGR control valve (8) can be fixed on the cylinder cap with fastening pieces such as bolts.
The control circuit of described solenoid valve 21 is connected with engine electric-controlled unit.Solenoid valve 21 is accepted the control signal that engine electric-controlled unit sends according to engine operating condition, the size of the valve port of control EGR control valve 8, that is the size of exhaust gas flow.
For temperature, the disturbance of waste gas that cylinder is discharged reduces the influence of waste gas inlet tube 4 as far as possible, the inlet of described waste gas inlet tube 4 is connected near the gas exhaust manifold outlet(discharge) flange 13 of gas exhaust manifold 3, i.e. the joint of the outlet of gas exhaust manifold 3 and exhaust manifold.
Described waste gas designated lane 5 is as a whole with engine cylinder cover 30.Compact structure and structure obtain simplifying.Waste gas designated lane 5 in the engine cylinder cover 30 can be realized with casting or mach method.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technological scheme carry out; or design of the present invention and technological scheme are directly applied to other occasion without improving, all within protection scope of the present invention.
Claims (10)
1, a kind of exhaust gas recirculation device of engine, comprise gas exhaust manifold (3), waste gas inlet tube (4), waste gas distribution piping (7), intake manifold (10), it is characterized in that: between described waste gas inlet tube (4) and the waste gas distribution piping (7), be communicated with by waste gas designated lane (5), described waste gas designated lane (5) is located in the water jacket (31) on the engine cylinder cover (30), and the periphery of waste gas designated lane (5) contacts with cooling medium (6) in the water jacket (31).
2, according to the described exhaust gas recirculation device of engine of claim 1, it is characterized in that: described waste gas inlet tube (4) is a waste gas inlet tube rigid section (15), and middle one section is waste gas inlet tube compliant section (14), and its structure is telescopic bellows.
3, according to claim 1 or 2 described exhaust gas recirculation device of engine, it is characterized in that: described waste gas distribution piping (7) is arranged between intake manifold (10) and the engine cylinder cover (30), the mouth of pipe with intake manifold (10) and engine cylinder cover (30) joint at waste gas distribution piping (7) is established waste gas throttle orifice (9), and the aperture of waste gas throttle orifice (9) is less than the internal diameter of waste gas distribution piping (7).
4, according to the described exhaust gas recirculation device of engine of claim 3, it is characterized in that: the outlet of the intake manifold intake duct (11) of described waste gas throttle orifice (9) and intake manifold (10) is all near cylinder cap intake duct (32) ingress of engine cylinder cover (30), and, form the mixed airway (29) that air inlet and waste gas mix mutually by waste gas distribution piping (7) in the joint of intake manifold (10) and intake manifold (10).
5, according to claim 1 or 2 or 4 described exhaust gas recirculation device of engine, it is characterized in that: between described waste gas designated lane (5) and the waste gas distribution piping (7), promptly EGR control valve (8) is established in the outlet port of waste gas designated lane (5).
6, according to the described exhaust gas recirculation device of engine of claim 5, it is characterized in that: described EGR control valve (8) is provided with solenoid valve (21), the structure of described EGR control valve (8) is a throttle valve, its spool (20) is connected with the iron core of solenoid valve (21), and constitute the tapering valve port with valve seat (19), one end of valve port is control valve exhaust gas entrance (22), the other end is control valve waste gas outlet (24), valve seat (19) is installed in the valve body (23), and EGR control valve (8) is fixed on the engine body (1) by EGR control valve mounting hole (18) and fastening screw trip bolt.
7, according to the described exhaust gas recirculation device of engine of claim 6, it is characterized in that: the control circuit of described solenoid valve (21) is connected with engine electric-controlled unit.
8, according to claim 1 or 2 or 4 or 6 or 7 described exhaust gas recirculation device of engine, it is characterized in that: the inlet of described waste gas inlet tube (4) is connected near the gas exhaust manifold outlet(discharge) flange (13) of gas exhaust manifold (3).
9, according to claim 1 or 2 or 4 or 6 or 7 described exhaust gas recirculation device of engine, it is characterized in that: described waste gas designated lane (5) is as a whole with engine cylinder cover (30).
10, according to the described exhaust gas recirculation device of engine of claim 2, it is characterized in that: described waste gas inlet tube rigid section (15) and waste gas inlet tube compliant section (14) are resistant to elevated temperatures metallic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100254737A CN100520043C (en) | 2007-07-28 | 2007-07-28 | Exhaust gas recirculation device of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100254737A CN100520043C (en) | 2007-07-28 | 2007-07-28 | Exhaust gas recirculation device of engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101100964A true CN101100964A (en) | 2008-01-09 |
| CN100520043C CN100520043C (en) | 2009-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100254737A Active CN100520043C (en) | 2007-07-28 | 2007-07-28 | Exhaust gas recirculation device of engine |
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| CN (1) | CN100520043C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493896A (en) * | 2011-12-14 | 2012-06-13 | 重庆长安汽车股份有限公司 | Exhaust manifold for exhaust gas recirculation (EGR) engine |
| CN101892926B (en) * | 2009-05-21 | 2012-09-05 | 浙江福爱电子有限公司 | Exhaust gas recirculation system for spark ignition engine |
| CN102893012A (en) * | 2010-05-17 | 2013-01-23 | 丰田自动车株式会社 | Cylinder head having egr gas cooling structure, and method for manufacturing same |
| CN103114916A (en) * | 2013-02-28 | 2013-05-22 | 长城汽车股份有限公司 | EGR (exhaust gas recirculation) control system |
| CN105134419A (en) * | 2015-09-24 | 2015-12-09 | 重庆小康工业集团股份有限公司 | Engine exhaust gas recirculation system |
| CN105829674A (en) * | 2013-12-13 | 2016-08-03 | 双叶产业株式会社 | Catalytic converter |
| CN107605622A (en) * | 2017-10-20 | 2018-01-19 | 奇瑞汽车股份有限公司 | Highly integrated EGR system |
| CN109790801A (en) * | 2016-09-19 | 2019-05-21 | 康明斯有限公司 | The cast type EGR cross pipe with integral venturi for flow measurement |
-
2007
- 2007-07-28 CN CNB2007100254737A patent/CN100520043C/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892926B (en) * | 2009-05-21 | 2012-09-05 | 浙江福爱电子有限公司 | Exhaust gas recirculation system for spark ignition engine |
| CN102893012A (en) * | 2010-05-17 | 2013-01-23 | 丰田自动车株式会社 | Cylinder head having egr gas cooling structure, and method for manufacturing same |
| CN102893012B (en) * | 2010-05-17 | 2015-03-18 | 丰田自动车株式会社 | Cylinder head having egr gas cooling structure, and method for manufacturing same |
| CN102493896A (en) * | 2011-12-14 | 2012-06-13 | 重庆长安汽车股份有限公司 | Exhaust manifold for exhaust gas recirculation (EGR) engine |
| CN103114916A (en) * | 2013-02-28 | 2013-05-22 | 长城汽车股份有限公司 | EGR (exhaust gas recirculation) control system |
| CN105829674A (en) * | 2013-12-13 | 2016-08-03 | 双叶产业株式会社 | Catalytic converter |
| CN105134419A (en) * | 2015-09-24 | 2015-12-09 | 重庆小康工业集团股份有限公司 | Engine exhaust gas recirculation system |
| CN109790801A (en) * | 2016-09-19 | 2019-05-21 | 康明斯有限公司 | The cast type EGR cross pipe with integral venturi for flow measurement |
| CN107605622A (en) * | 2017-10-20 | 2018-01-19 | 奇瑞汽车股份有限公司 | Highly integrated EGR system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100520043C (en) | 2009-07-29 |
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