CN102536547A - Engine intake manifold with exhaust gas recirculation (EGR) exhaust gas distribution structure - Google Patents
Engine intake manifold with exhaust gas recirculation (EGR) exhaust gas distribution structure Download PDFInfo
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- CN102536547A CN102536547A CN2012100393779A CN201210039377A CN102536547A CN 102536547 A CN102536547 A CN 102536547A CN 2012100393779 A CN2012100393779 A CN 2012100393779A CN 201210039377 A CN201210039377 A CN 201210039377A CN 102536547 A CN102536547 A CN 102536547A
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- waste gas
- intake manifold
- engine intake
- exhaust gas
- gas distribution
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Abstract
The invention discloses an engine intake manifold with an exhaust gas recirculation (EGR) exhaust gas distribution structure. The EGR exhaust gas distribution structure is arranged on the engine intake manifold and consists of an exhaust gas distribution channel, a sealing gasket, a cover plate and a mounting bolt, wherein one end of the exhaust gas distribution channel is connected with a transition part of the engine intake manifold and a pressure stabilizing cavity and is communicated with each gas channel on the engine intake manifold through a communicating hole; the other end of the exhaust gas distribution channel is connected with the cover plate through the bolt; the sealing gasket is arranged between the other end of the exhaust gas distribution channel and the cover plate; and an exhaust gas introduction interface is formed on the cover plate. Each gas channel of the engine intake manifold has gas intake independence, and the exhaust gas distribution channel is independently communicated with each gas channel of the engine intake manifold through the communicating hole, so that exhaust gas can be uniformly distributed to each cylinder of an engine, and each cylinder of the engine performs balanced combustion; and therefore, the vibration of the engine is reduced, and the service life of each part of the engine is prolonged.
Description
Technical field
The present invention relates to a kind of motor car engine component, be specifically related to a kind of engine intake manifold of the EGR of having waste gas distribution structure.
Background technique
The reinforcement of the environmental consciousness of Along with people's and more and more stricter emission regulation demands, how purifying exhaust gas is present engine design and a great problem of making.Gas recirculation system (EGR) is the previous comparatively ripe purifying exhaust gas technology of order, has obtained using widely.In recent years discover that EGR not only can also can reduce the pumping loss of motor the purifying exhaust gas while, reaches and improves the effect that power reduces oil consumption.Owing to above reason, increasing EGR technology is applied on the motor car engine.
The EGR major part of domestic and international application all is to be incorporated in the valve of EGR through the waste gas of metallic conduit with the gas exhaust manifold place at present; Through metallic conduit the waste gas in the valve is incorporated in the intake manifold cavity more at last, the final realization introduced the purpose that reaches the improvement discharging in each cylinder of motor and reduce the pumping loss under the engine section operating mode uniformly with charge (mixture of fresh air or fresh air and the gasoline) mixed gas of waste gas and motor.Wherein the valve of EGR plays the effect (promptly realizing the purpose of control ER EGR Rate) that imports the exhausted air quantity in the intake manifold cavity of regulating.
EGR key technology in the application process on motor car engine is exactly that the waste gas that gets into the EGR in the intake manifold cavity can be assigned in each cylinder of motor uniformly.If the uniform distribution problem of waste gas that can not better controlled EGR; Then will cause each cylinder burning of motor unbalanced; Thereby increase the vibration of motor, reduce the working life of each component of motor, also can cause power, the moment of torsion anomaly of motor simultaneously.Therefore, the waste gas that gets in the intake manifold cavity is assigned in each cylinder of motor uniformly and has become a great problem that EGR uses on petrol engine.In order to address this problem; Traditional design is near the throttle body position with the interface arrangement of the EGR on the intake manifold; A large amount of fresh airs through utilizing throttle body to get into evenly mix waste gas; And then utilize the effect of each cylinder air-intake negative-pressure that mixed gas is assigned in each cylinder of motor, but this mode can't realize mixed gas is evenly distributed to the purpose in each cylinder of motor.
Summary of the invention
The engine intake manifold that the purpose of this invention is to provide a kind of EGR of having waste gas distribution structure; It can realize that EGR waste gas is in each cylinder uniform distribution of motor; Make each cylinder burning of motor balanced, reduce the vibration of motor, prolong the working life of each component of motor.
A kind of engine intake manifold that has EGR waste gas distribution structure of the present invention; Comprise engine intake manifold; It is characterized in that: on engine intake manifold, be provided with the waste gas distribution structure of EGR, this waste gas distribution structure distributes passage, sealing gasket, cover plate and construction bolt to form by waste gas;
Said waste gas distributes an end of passage to be connected with the intermediate location of engine intake manifold with the voltage stabilizing cavity, and passes through intercommunicating pore and be communicated with each air flue on the engine intake manifold;
Said waste gas distributes the other end of passage to be connected with cover plate through bolt, and between the other end of waste gas distribution passage and cover plate, is provided with sealing gasket; On said cover plate, be provided with waste gas and introduce interface.
Further, the said waste gas that is located on the cover plate is introduced interface for circular, and the diameter of said intercommunicating pore is 1/2nd of a waste gas introducing interface diameter.
Described a kind of engine intake manifold that has EGR waste gas distribution structure, its said waste gas distributes passage to be integrated on the engine intake manifold through casting or injection moulding.
When the present invention worked, waste gas was at first introduced interface through the waste gas on the cover plate and is entered in the waste gas distribution passage on the engine intake manifold, and waste gas distributes passage to play an effect that stores waste gas temporarily.When each air flue of engine intake manifold during to the cylinder air inlet; Under the effect of air-intake negative-pressure; Being stored in waste gas distributes the waste gas in the passage to pass through the intercommunicating pore that waste gas distributes each air flue of passage and engine intake manifold; Be inhaled in each air flue of engine intake manifold, and evenly mix the back with fresh charge and get in the cylinder, this moment, waste gas distributed passage to play the effect that distributes waste gas.
Beneficial effect of the present invention: because the independence of each air flue air inlet of engine intake manifold and waste gas distribute passage to be communicated with separately through attachment hole with each air flue of engine intake manifold; Therefore can realize waste gas is evenly distributed in each cylinder of motor; Make each cylinder burning of motor balanced; Thereby reduce the vibration of motor, prolong the working life of each component of motor; Simple for structure, production technology is simple, and is easy to dismounting and changes, and using scope is wider.
Description of drawings
Fig. 1 is an exploded perspective view of the present invention;
Fig. 2 is that waste gas distributes passage to be integrated in the schematic representation on the engine intake manifold;
Fig. 3 is a principle schematic of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is described further.
Referring to a kind of engine intake manifold that has EGR waste gas distribution structure illustrated in figures 1 and 2; On engine intake manifold 1, be provided with the waste gas distribution structure of EGR; This waste gas distribution structure distributes passage 12, sealing gasket 2, cover plate 3 and construction bolt 4 to form by waste gas, and waste gas distributes passage 12 to be integrated on the engine intake manifold 1 through casting (or injection moulding); Waste gas distributes an end of passage 12 to be connected with the intermediate location of engine intake manifold 1 with voltage stabilizing cavity 15, and passes through intercommunicating pore 13 and be communicated with each air flue 14 on the engine intake manifold 1; Waste gas distributes the other end of passage 12 to be connected with cover plate 3 through bolt 4, and between the other end of waste gas distribution passage 12 and cover plate 3, is provided with sealing gasket 2; On said cover plate 3, be provided with waste gas and introduce interface 31; It is circular that waste gas on the cover plate is introduced interface 31, and the diameter of intercommunicating pore 13 is 1/2nd of waste gas introducing interface 31 diameters.
The working principle of structure of the present invention is referring to shown in Figure 3: waste gas is at first introduced interface 31 through the waste gas on the cover plate 3 and is entered in the waste gas distribution passage 12 on the engine intake manifold 1 (shown in Fig. 3 thin-line arrow), and waste gas distributes passage 12 to play an effect that stores waste gas temporarily.When each air flue 14 on the engine intake manifold 1 during to the cylinder air inlet; Under the effect of air-intake negative-pressure; Being stored in waste gas distributes the waste gas of passage 12 to be inhaled in the air flue 14 on the engine intake manifold 1 (shown in Fig. 3 thin-line arrow) through intercommunicating pore 13 this moment; And evenly mixes the back with the fresh charge (shown in Fig. 3 thick-line arrow) that gets into air flues 14 through the voltage stabilizing cavity on the engine intake manifold 1 15 and get in the cylinder (shown in Fig. 3 hollow arrow), this moment, waste gas distributed passage 12 to play the effect of distribution waste gas.Because each air flue 14 air inlet independence on the engine intake manifold 1 and waste gas distribute passage 12 to be communicated with separately through intercommunicating pore 13 with each air flue 14, therefore can realize waste gas is evenly distributed to the effect of each cylinder of motor.
Claims (3)
1. engine intake manifold that has EGR waste gas distribution structure; Comprise engine intake manifold (1); It is characterized in that: on engine intake manifold (1), be provided with the waste gas distribution structure of EGR, this waste gas distribution structure distributes passage (12), sealing gasket (2), cover plate (3) and construction bolt (4) to form by waste gas;
Said waste gas distributes an end of passage (12) to be connected with the intermediate location of engine intake manifold (1) with voltage stabilizing cavity (15), and passes through intercommunicating pore (13) and be communicated with each air flue (14) on the engine intake manifold (1);
Said waste gas distributes the other end of passage (12) to be connected with cover plate (3) through bolt (4), and between the other end of waste gas distribution passage (12) and cover plate (3), is provided with sealing gasket (2); On said cover plate (3), be provided with waste gas and introduce interface (31).
2. a kind of engine intake manifold that has EGR waste gas distribution structure according to claim 1; It is characterized in that: the said waste gas that is located on the cover plate (3) is introduced interface (31) for circular, and the diameter of said intercommunicating pore (13) is 1/2nd of waste gas introducing interface (a 31) diameter.
3. a kind of engine intake manifold that has EGR waste gas distribution structure according to claim 1 and 2 is characterized in that: said waste gas distributes passage (12) to be integrated on the engine intake manifold (1) through casting or injection moulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210039377.9A CN102536547B (en) | 2012-02-21 | 2012-02-21 | A kind of engine intake manifold with EGR waste gas distribution structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210039377.9A CN102536547B (en) | 2012-02-21 | 2012-02-21 | A kind of engine intake manifold with EGR waste gas distribution structure |
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| Publication Number | Publication Date |
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| CN102536547A true CN102536547A (en) | 2012-07-04 |
| CN102536547B CN102536547B (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210039377.9A Active CN102536547B (en) | 2012-02-21 | 2012-02-21 | A kind of engine intake manifold with EGR waste gas distribution structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061927A (en) * | 2013-01-11 | 2013-04-24 | 中国兵器工业集团第七〇研究所 | Uniform gas inlet pipe for gas engine |
| CN106150769A (en) * | 2015-03-27 | 2016-11-23 | 长城汽车股份有限公司 | Engine pack and there is its vehicle |
| US9541044B2 (en) | 2015-01-27 | 2017-01-10 | Ford Global Technologies, Llc | Intake manifold secondary gas distribution via structural posts |
| CN107269428A (en) * | 2016-03-31 | 2017-10-20 | 株式会社斯巴鲁 | exhaust gas recirculation device |
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| JP2001123901A (en) * | 1999-10-21 | 2001-05-08 | Hitachi Chem Co Ltd | Intake manifold and method of manufacturing it |
| JP2001289126A (en) * | 2000-04-07 | 2001-10-19 | Hino Motors Ltd | Egr device |
| US6945237B1 (en) * | 2004-03-15 | 2005-09-20 | Deere & Company | Intake manifold with EGR/air mixing |
| CN201891528U (en) * | 2010-07-29 | 2011-07-06 | 长城汽车股份有限公司 | Engine waste gas recirculating system |
| CN201925063U (en) * | 2010-12-15 | 2011-08-10 | 中国汽车工程研究院股份有限公司 | Intake manifold for heavy gas engine |
| JP2011220299A (en) * | 2010-04-14 | 2011-11-04 | Denso Corp | Intake manifold |
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2012
- 2012-02-21 CN CN201210039377.9A patent/CN102536547B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001123901A (en) * | 1999-10-21 | 2001-05-08 | Hitachi Chem Co Ltd | Intake manifold and method of manufacturing it |
| JP2001289126A (en) * | 2000-04-07 | 2001-10-19 | Hino Motors Ltd | Egr device |
| US6945237B1 (en) * | 2004-03-15 | 2005-09-20 | Deere & Company | Intake manifold with EGR/air mixing |
| JP2011220299A (en) * | 2010-04-14 | 2011-11-04 | Denso Corp | Intake manifold |
| CN201891528U (en) * | 2010-07-29 | 2011-07-06 | 长城汽车股份有限公司 | Engine waste gas recirculating system |
| CN201925063U (en) * | 2010-12-15 | 2011-08-10 | 中国汽车工程研究院股份有限公司 | Intake manifold for heavy gas engine |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061927A (en) * | 2013-01-11 | 2013-04-24 | 中国兵器工业集团第七〇研究所 | Uniform gas inlet pipe for gas engine |
| US9541044B2 (en) | 2015-01-27 | 2017-01-10 | Ford Global Technologies, Llc | Intake manifold secondary gas distribution via structural posts |
| CN106150769A (en) * | 2015-03-27 | 2016-11-23 | 长城汽车股份有限公司 | Engine pack and there is its vehicle |
| CN106150769B (en) * | 2015-03-27 | 2020-03-03 | 长城汽车股份有限公司 | Engine assembly and vehicle with same |
| CN107269428A (en) * | 2016-03-31 | 2017-10-20 | 株式会社斯巴鲁 | exhaust gas recirculation device |
| CN107269428B (en) * | 2016-03-31 | 2019-03-08 | 株式会社斯巴鲁 | Exhaust gas recirculation device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102536547B (en) | 2015-12-09 |
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