CN102536547B - A kind of engine intake manifold with EGR waste gas distribution structure - Google Patents
A kind of engine intake manifold with EGR waste gas distribution structure Download PDFInfo
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- CN102536547B CN102536547B CN201210039377.9A CN201210039377A CN102536547B CN 102536547 B CN102536547 B CN 102536547B CN 201210039377 A CN201210039377 A CN 201210039377A CN 102536547 B CN102536547 B CN 102536547B
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- waste gas
- intake manifold
- engine intake
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Abstract
The present invention discloses a kind of engine intake manifold with EGR waste gas distribution structure.Engine intake manifold is provided with the waste gas distribution structure of EGR, and this waste gas distribution structure is distributed passage, sealing gasket, cover plate and construction bolt by waste gas and is formed; One end that described waste gas distributes passage is connected with the intermediate location of engine intake manifold with voltage stabilizing cavity, and is communicated with each air flue on engine intake manifold by intercommunicating pore; The other end that described waste gas distributes passage is connected with cover plate by bolt, and is provided with sealing gasket at the other end of waste gas distribution passage and cover plate; Described cover plate is provided with waste gas and introduces interface.The present invention is communicated with separately by attachment hole with each air flue of engine intake manifold because the independence of each air flue air inlet of engine intake manifold and waste gas distribute passage, therefore, it is possible to realize waste gas to be evenly distributed in each cylinder of motor, make the burning of motor each cylinder balanced, thus reduce the vibration of motor, extend the working life of each component of motor.
Description
Technical field
The present invention relates to a kind of part of automobile engine, be specifically related to a kind of engine intake manifold with EGR waste gas distribution structure.
Background technique
Along with reinforcement and the more and more stricter emission regulation demands of the environmental consciousness of people, how purifying exhaust gas is a great problem of existing engine designs and manufacture.Gas recirculation system (EGR) is the previous comparatively ripe purifying exhaust gas technology of order, is widely used.Research in recent years finds, EGR not only also can reduce the pumping loss of motor by purifying exhaust gas simultaneously, reaches the effect improving power reduction oil consumption.Due to above reason, increasing EGR technology is applied in motor car engine.
The EGR major part of current domestic and international application is all be incorporated in the valve of EGR by metallic conduit by the waste gas at gas exhaust manifold place, finally by metallic conduit, the waste gas in valve is incorporated in intake manifold cavity again, final realizes charge (mixture of fresh air or fresh air and the gasoline) mixed gas of waste gas and motor to introduce uniformly in each cylinder of motor to reach the object improved and discharge and reduce the pumping loss under engine portion divided working status.Wherein the valve of EGR plays the effect (namely realizing controlling the object of ER EGR Rate) regulating the exhausted air quantity imported in intake manifold cavity.
The key technology of EGR in motor car engine in application process is exactly how to enable the waste gas of the EGR entered in intake manifold cavity be assigned to uniformly in each cylinder of motor.If can not the uniform distribution problem of the good waste gas of control EGR, the each cylinder of motor then will be caused to burn unbalanced, thus 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, a great problem how making the waste gas entered in intake manifold cavity be assigned to uniformly in each cylinder of motor to have become EGR and applied on petrol engine.In order to address this problem, traditional design is in close throttle body position by the interface arrangement of the EGR in intake manifold, waste gas is carried out Homogeneous phase mixing by a large amount of fresh airs entered by utilizing throttle body, and then utilize the effect of each cylinder air-intake negative-pressure to be assigned in each cylinder of motor by mixed gas, but which cannot realize the object that is assigned to by mixed gas uniform in each cylinder of motor.
Summary of the invention
The object of this invention is to provide a kind of engine intake manifold with EGR waste gas distribution structure, it can realize EGR waste gas in each cylinder uniform distribution of motor, make the burning of motor each cylinder balanced, reduce the vibration of motor, extend the working life of each component of motor.
A kind of engine intake manifold with EGR waste gas distribution structure of the present invention, comprise engine intake manifold, it is characterized in that: the waste gas distribution structure being provided with EGR on engine intake manifold, this waste gas distribution structure is distributed passage, sealing gasket, cover plate and construction bolt by waste gas and is formed;
One end that described waste gas distributes passage is connected with the intermediate location of engine intake manifold with voltage stabilizing cavity, and is communicated with each air flue on engine intake manifold by intercommunicating pore;
The other end that described waste gas distributes passage is connected with cover plate by bolt, and is provided with sealing gasket between the other end and cover plate of waste gas distribution passage; Described cover plate is provided with waste gas and introduces interface.
Further, described in set waste gas on the cover board to introduce interface for circular, the diameter of described intercommunicating pore is 1/2nd of waste gas introducing interface diameter.
Described a kind of engine intake manifold with EGR waste gas distribution structure, waste gas described in it is distributed passage and is integrated on engine intake manifold by casting or injection moulding.
When the present invention works, first waste gas introduced the interface waste gas entered on engine intake manifold by the waste gas on cover plate and distributed in passage, and waste gas distributes passage and plays the effect that stores waste gas temporarily.When each air flue of engine intake manifold is to cylinder air inlet, under the effect of air-intake negative-pressure, be stored in the waste gas waste gas distributed in passage distributes each air flue of passage and engine intake manifold intercommunicating pore by waste gas, be inhaled in each air flue of engine intake manifold, and with fresh charge Homogeneous phase mixing after enter in cylinder, now waste gas distributes passage and plays and distribute the effect of waste gas.
Beneficial effect of the present invention: be communicated with separately by attachment hole with each air flue of engine intake manifold because the independence of each air flue air inlet of engine intake manifold and waste gas distribute passage, therefore, it is possible to realize waste gas to be evenly distributed in each cylinder of motor, make the burning of motor each cylinder balanced, thus reduce the vibration of motor, extend 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.
Accompanying drawing explanation
Fig. 1 is exploded perspective view of the present invention;
Fig. 2 is the schematic diagram that waste gas distribution passage is integrated on engine intake manifold;
Fig. 3 is principle schematic of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
See the engine intake manifold with EGR waste gas distribution structure a kind of shown in Fig. 1 and Fig. 2, engine intake manifold 1 is provided with the waste gas distribution structure of EGR, this waste gas distribution structure is distributed passage 12, sealing gasket 2, cover plate 3 and construction bolt 4 by waste gas and is formed, and waste gas distributes passage 12 and is integrated on engine intake manifold 1 by casting (or injection moulding); One end that waste gas distributes passage 12 is connected with the intermediate location of engine intake manifold 1 with voltage stabilizing cavity 15, and is communicated with each air flue 14 on engine intake manifold 1 by intercommunicating pore 13; The other end that waste gas distributes passage 12 is connected with cover plate 3 by bolt 4, and is provided with sealing gasket 2 between the other end and cover plate 3 of waste gas distribution passage 12; Described cover plate 3 is provided with waste gas and introduces interface 31; It is circular that waste gas on cover plate introduces interface 31, and the diameter of intercommunicating pore 13 is that waste gas introduces 1/2nd of interface 31 diameter.
The working principle of structure of the present invention is shown in Figure 3: first waste gas introduced interface 31 waste gas entered on engine intake manifold 1 by the waste gas on cover plate 3 and distributed in passage 12 (as shown in Fig. 3 thin-line arrow), and waste gas distributes passage 12 and plays the effect that stores waste gas temporarily.When each air flue 14 on engine intake manifold 1 is to cylinder air inlet, under the effect of air-intake negative-pressure, being stored in the waste gas that waste gas distributes passage 12 is now inhaled in air flue on engine intake manifold 1 14 (as shown in Fig. 3 thin-line arrow) by intercommunicating pore 13, and with fresh charge (as shown in Fig. 3 thick-line arrow) Homogeneous phase mixing being entered air flue 14 by the voltage stabilizing cavity 15 on engine intake manifold 1 after enter in cylinder (as shown in Fig. 3 hollow arrow), now waste gas distributes passage 12 and plays the effect distributing waste gas.Be communicated with separately by intercommunicating pore 13 with each air flue 14 because each air flue 14 air inlet independence on engine intake manifold 1 and waste gas distribute passage 12, therefore can realize effect waste gas being evenly distributed to each cylinder of motor.
Claims (2)
1. the engine intake manifold with EGR waste gas distribution structure, comprise engine intake manifold (1), it is characterized in that: the waste gas distribution structure being provided with EGR on engine intake manifold (1), this waste gas distribution structure is distributed passage (12), sealing gasket (2), cover plate (3) and construction bolt (4) by waste gas and is formed;
One end that described waste gas distributes passage (12) is connected with the intermediate location of engine intake manifold (1) with voltage stabilizing cavity (15), and is communicated with each air flue (14) on engine intake manifold (1) by intercommunicating pore (13); The other end that described waste gas distributes passage (12) is connected with cover plate (3) by bolt (4), and is provided with sealing gasket (2) between the other end and cover plate (3) of waste gas distribution passage (12); Described cover plate (3) is provided with waste gas and introduces interface (31); The described waste gas be located on cover plate (3) introduces interface (31) for circular, and the diameter of described intercommunicating pore (13) is that waste gas introduces 1/2nd of interface (31) diameter.
2. a kind of engine intake manifold with EGR waste gas distribution structure according to claim 1, is characterized in that: described waste gas is distributed passage (12) and is integrated on engine intake manifold (1) by 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102536547A CN102536547A (en) | 2012-07-04 |
| CN102536547B true 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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Families Citing this family (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 |
| US9541044B2 (en) | 2015-01-27 | 2017-01-10 | Ford Global Technologies, Llc | Intake manifold secondary gas distribution via structural posts |
| CN106150769B (en) * | 2015-03-27 | 2020-03-03 | 长城汽车股份有限公司 | Engine assembly and vehicle with same |
| JP6313800B2 (en) * | 2016-03-31 | 2018-04-18 | 株式会社Ｓｕｂａｒｕ | Exhaust gas recirculation system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (3)
| 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 |
| JP5440344B2 (en) * | 2010-04-14 | 2014-03-12 | 株式会社デンソー | Intake manifold |
-
2012
- 2012-02-21 CN CN201210039377.9A patent/CN102536547B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN102536547A (en) | 2012-07-04 |
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