CN101832201A - Connection structure of engine exhaust gas reclrculation pipe and plastic intake manifold - Google Patents
Connection structure of engine exhaust gas reclrculation pipe and plastic intake manifold Download PDFInfo
- Publication number
- CN101832201A CN101832201A CN201010160397A CN201010160397A CN101832201A CN 101832201 A CN101832201 A CN 101832201A CN 201010160397 A CN201010160397 A CN 201010160397A CN 201010160397 A CN201010160397 A CN 201010160397A CN 101832201 A CN101832201 A CN 101832201A
- Authority
- CN
- China
- Prior art keywords
- exhaust gas
- intake manifold
- thermal sleeve
- air intake
- gas recirculation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
- F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
- F02M26/18—Thermal insulation or heat protection
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10314—Materials for intake systems
- F02M35/10321—Plastics; Composites; Rubbers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The invention discloses a connection structure of an engine exhaust gas reclrculation pipe and a plastic inlet manifold, comprising an exhaust gas recirculation inlet pipe and a plastic inlet manifold, a thermal sleeve pipe is arranged on the connection part of the exhaust gas recirculation inlet pipe and the plastic inlet manifold, the thermal sleeve pipe is arranged in an entrance of a connection lug boss of the plastic inlet manifold, a connecting head of the exhaust gas recirculation inlet pipe is inserted into the thermal sleeve pipe, and the exhaust gas recirculation inlet pipe and the plastic inlet manifold are connected and mutually separated by the thermal sleeve pipe. The connection structure can avoid the direct contact of the exhaust gas recirculation inlet pipe and the plastic inlet manifold, directly conducts high temperature to the plastic inlet manifold, reduces the wall surface temperature of the inlet manifold of the connection of the EGR (Exhaust Gas Recirculation) pipe and the plastic inlet manifold, better protects the inlet manifold, and improves the reliability of the plastic inlet manifold with the EGR system.
Description
Technical field
The present invention relates to engine exhaust-gas recirculating system (Exhaust Gas Recirculation system).
Background technique
Engine exhaust-gas recirculating system can effectively reduce the discharging and the fuel consumption rate of motor, and exhaust gas recirculation (hereinafter to be referred as EGR) technology is used increasingly extensive on motor.Be reintroduced to gas handling system because this technology is the high-temp waste gas with motor, this just causes exhaust gas reclrculation pipe and intake manifold joint intake manifold material walls surface temperature very high.The temperature that general aluminum alloy air inlet manifold can allow is 250 degrees centigrade, and the temperature that plastic air intake manifold can allow is 130 degrees centigrade.Advantages such as plastic air intake manifold is little owing to its transmission of heat, wall is smooth, density is little have obtained increasingly extensive application in the engine intake manifold design.But its temperature that can allow is low, and the high-temperature gas that the EGR pipe is introduced is easy to plastic air intake manifold is ablated, melted, and therefore need explore new organization plan to the structure of engine exhaust gas reclrculation pipe and plastic air intake manifold joint.
Summary of the invention
The present invention proposes a kind of improved engine exhaust gas reclrculation pipe and plastic air intake manifold linkage structure, purpose is exactly in order to solve ablation, the thawing of engine EGR system high-temperature gas to plastic air intake manifold, and high temperature causes the low problem of plastic air intake manifold reliability.
In order to solve the problems of the technologies described above, technological scheme of the present invention is as follows:
A kind of engine exhaust gas reclrculation pipe and plastic air intake manifold linkage structure, it comprises exhaust gas recirculation inlet pipe and plastic air intake manifold, the access port place that connects the exhaust gas recirculation inlet pipe at plastic air intake manifold is provided with a connection boss.Improvement of the present invention is: between the connection part of exhaust gas recirculation inlet pipe and plastic air intake manifold thermal sleeve is set, described thermal sleeve is installed in the access port of connection boss of plastic air intake manifold, the access head of exhaust gas recirculation inlet pipe inserts in the thermal sleeve, and both connect by thermal sleeve and are spaced from each other.Adopt this structure, can avoid the exhaust gas recirculation inlet pipe high temperature directly to be passed to and lead to plastic air intake manifold with direct contact of plastic air intake manifold.
In order to guarantee that fully the exhaust gas recirculation inlet pipe does not take place directly to contact with plastic air intake manifold, preferably the Design of length with described thermal sleeve is to be longer than the degree of depth that the exhaust gas recirculation inlet pipe inserts plastic air intake manifold.
And, in order to reach more effectively effect of heat insulation, thermal sleeve is to be connected by the access head of two ends and exhaust gas recirculation inlet pipe up and down, reserving air layer between exhaust gas recirculation inlet pipe outer wall between the two ends and the thermal sleeve up and down, utilize the little characteristics of air thermal conductivity, the formation air is heat insulation, and the heat in the blocking-up EGR inlet pipe passes to plastic air intake manifold.
Further, have vent, and described vent to be exposed to and connect on the boss, can further the hot air in the air layer outwards be distributed like this, increase effect of heat insulation on described thermal sleeve top.
In addition, bottom outer wall that also can thermal sleeve is provided with the radiated rib of projection, in order to guarantee the thermal sleeve mounting stability, with described thermal sleeve by fixed support be connected boss realization relative fixed.
Improve by said structure, this linkage structure can reduce the intake manifold wall surface temperature of EGR pipe and plastic air intake manifold joint greatly, well protects intake manifold, improves the reliability that the egr system plastic air intake manifold is housed.
Description of drawings
Fig. 1 is the part position assembly structure schematic representation of this linkage structure.
Fig. 2 is the internal structure sectional view of the joint of this linkage structure.
Fig. 3 is the structural representation of thermal sleeve.
Fig. 4 is the section and the intake manifold inner wall position sectional view of thermal sleeve.
Among the figure: 1-exhaust gas recirculation inlet pipe 2-fixed plate 3-thermal sleeve 4-plastic air intake manifold 5-air layer 6-vent 7-radiated rib
Embodiment
Describe this linkage structure in detail below in conjunction with accompanying drawing:
Referring to Fig. 1 and Fig. 2, this linkage structure comprises exhaust gas recirculation inlet pipe 1 and plastic air intake manifold 4, is provided with one at the access port place that plastic air intake manifold 4 connects exhaust gas recirculation inlet pipe 1 and connects boss, and the connecting bolt hole is arranged on this boss.
Be provided with thermal sleeve 3 between the connection part of exhaust gas recirculation inlet pipe 1 and plastic air intake manifold 4, the thermal sleeve material is a stainless steel material, and wall thickness is not less than 2mm.Thermal sleeve 3 is installed in the installation base access port of plastic air intake manifold 4, and the access head of exhaust gas recirculation inlet pipe 1 inserts in the thermal sleeve 3, and both connect by thermal sleeve 3 and are spaced from each other.
The length of thermal sleeve 3 is longer than more than the degree of depth 10mm of exhaust gas recirculation inlet pipe access plastic air intake manifold.Thermal sleeve 3 is connected by the access head with exhaust gas recirculation inlet pipe 1 of two ends up and down, about reserving air layer 5 between exhaust gas recirculation inlet pipe outer wall between the two ends and the thermal sleeve, air layer 5 wants thickness to be not less than 5mm.Have a circle to be connected boss on exhaust gas recirculation inlet pipe 1 and joint, the thermal sleeve 3 upper end outer wall, be used for being connected with thermal sleeve 3, the boss minimum constructive height is not less than 15mm.
The technology that relies on thermal sleeve 3 outer wall and intake manifold 4 internal faces realizes fitting tightly, and guarantees sealing; Exhaust gas recirculation inlet pipe 1 also will be realized on the contact segment technology fitting tightly in intake manifold with thermal sleeve 3, guarantees sealing, causes engine load to lose control of to such an extent as to prevent intake manifold air-leaks.
Have the vent 6 that diameter is not less than 6mm referring to Fig. 3 and Fig. 4 on thermal sleeve 3 tops, and vent 6 to be exposed to and connect on the boss 4 (intake manifold), keep air layer 5 to communicate with ambient air.
Will be welded with fixed support 2 outside the thermal sleeve 3, support on the connection boss 4 of intake manifold, is used for fixing thermal sleeve by bolt.
Also be provided with the radiated rib 7 of projection on the bottom outer wall of thermal sleeve 3, the wide 2.5mm that is not less than in the bottom of radiated rib 7 is not less than 1.3mm deeply.
Claims (6)
1. engine exhaust gas reclrculation pipe and plastic air intake manifold linkage structure, it comprises exhaust gas recirculation inlet pipe and plastic air intake manifold, is provided with one at the access port place that plastic air intake manifold connects the exhaust gas recirculation inlet pipe and connects boss;
It is characterized in that: be provided with thermal sleeve between the connection part of exhaust gas recirculation inlet pipe and plastic air intake manifold, both connect by thermal sleeve and are spaced from each other; Described thermal sleeve is installed in the access port of connection boss of plastic air intake manifold, and the thermal sleeve outer wall is connected boss with intake manifold internal face fits tightly, and the access head of described exhaust gas recirculation inlet pipe inserts in the thermal sleeve.
2. engine exhaust gas reclrculation pipe according to claim 1 and plastic air intake manifold linkage structure is characterized in that: the length of described thermal sleeve is longer than the degree of depth that the exhaust gas recirculation inlet pipe inserts plastic air intake manifold.
3. engine exhaust gas reclrculation pipe according to claim 1 and 2 and plastic air intake manifold linkage structure, it is characterized in that: described thermal sleeve is connected by the access head with the exhaust gas recirculation inlet pipe of two ends up and down, about reserving air layer between exhaust gas recirculation inlet pipe outer wall between the two ends and the thermal sleeve.
4. engine exhaust gas reclrculation pipe according to claim 1 and 2 and plastic air intake manifold linkage structure is characterized in that: have vent on described thermal sleeve top, and described vent will be exposed on the connection boss.
5. engine exhaust gas reclrculation pipe according to claim 1 and 2 and plastic air intake manifold linkage structure is characterized in that: described thermal sleeve by fixed support be connected boss and realize relative fixed.
6. engine exhaust gas reclrculation pipe according to claim 1 and 2 and plastic air intake manifold linkage structure is characterized in that: the heat insulation fin that also is provided with projection on the bottom outer wall of described thermal sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101603972A CN101832201B (en) | 2010-04-29 | 2010-04-29 | Connection structure of engine exhaust gas recirculation pipe and plastic intake manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101603972A CN101832201B (en) | 2010-04-29 | 2010-04-29 | Connection structure of engine exhaust gas recirculation pipe and plastic intake manifold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101832201A true CN101832201A (en) | 2010-09-15 |
| CN101832201B CN101832201B (en) | 2012-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101603972A Active CN101832201B (en) | 2010-04-29 | 2010-04-29 | Connection structure of engine exhaust gas recirculation pipe and plastic intake manifold |
Country Status (1)
| Country | Link |
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| CN (1) | CN101832201B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146860A (en) * | 2011-04-20 | 2011-08-10 | 重庆长安汽车股份有限公司 | Connecting structure of plastic intake manifold and EGR (exhaust gas recirculation) pipe |
| CN102464052A (en) * | 2010-11-12 | 2012-05-23 | 光阳工业股份有限公司 | Air intake pipe combined structure for motorcycle engines |
| CN104265514A (en) * | 2014-09-24 | 2015-01-07 | 安徽江淮汽车股份有限公司 | EGR exhaust gas guide pipe and connection structure of EGR valve and plastic intake manifold |
| WO2016092217A1 (en) * | 2014-12-12 | 2016-06-16 | Valeo Systemes De Controle Moteur | Valve notably designed for a combustion engine |
| US9541044B2 (en) | 2015-01-27 | 2017-01-10 | Ford Global Technologies, Llc | Intake manifold secondary gas distribution via structural posts |
| CN107387932A (en) * | 2017-08-01 | 2017-11-24 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of vent method that can effectively suppress pipeline valve cavitation corrosion |
| CN111295505A (en) * | 2017-11-15 | 2020-06-16 | 雷诺股份公司 | Powertrain with improved contaminant removal system |
| CN113323775A (en) * | 2021-06-30 | 2021-08-31 | 中国第一汽车股份有限公司 | Exhaust gas recirculation air inlet unit |
Citations (4)
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| JPH09317579A (en) * | 1996-05-31 | 1997-12-09 | Suzuki Motor Corp | Intake device for internal combustion engine |
| JP2000018108A (en) * | 1998-07-02 | 2000-01-18 | Toyota Motor Corp | Intake system of internal combustion engine |
| JP2003035226A (en) * | 2001-07-24 | 2003-02-07 | Aisan Ind Co Ltd | Intake device for internal combustion engine |
| CN201671734U (en) * | 2010-04-29 | 2010-12-15 | 重庆长安汽车股份有限公司 | Connecting structure of engine exhaust gas recirculation pipe and plastic gas inlet manifold |
-
2010
- 2010-04-29 CN CN2010101603972A patent/CN101832201B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09317579A (en) * | 1996-05-31 | 1997-12-09 | Suzuki Motor Corp | Intake device for internal combustion engine |
| JP2000018108A (en) * | 1998-07-02 | 2000-01-18 | Toyota Motor Corp | Intake system of internal combustion engine |
| JP2003035226A (en) * | 2001-07-24 | 2003-02-07 | Aisan Ind Co Ltd | Intake device for internal combustion engine |
| CN201671734U (en) * | 2010-04-29 | 2010-12-15 | 重庆长安汽车股份有限公司 | Connecting structure of engine exhaust gas recirculation pipe and plastic gas inlet manifold |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102464052A (en) * | 2010-11-12 | 2012-05-23 | 光阳工业股份有限公司 | Air intake pipe combined structure for motorcycle engines |
| CN102464052B (en) * | 2010-11-12 | 2016-08-03 | 光阳工业股份有限公司 | Motor engine air inlet pipe combined structure |
| CN102146860A (en) * | 2011-04-20 | 2011-08-10 | 重庆长安汽车股份有限公司 | Connecting structure of plastic intake manifold and EGR (exhaust gas recirculation) pipe |
| CN104265514A (en) * | 2014-09-24 | 2015-01-07 | 安徽江淮汽车股份有限公司 | EGR exhaust gas guide pipe and connection structure of EGR valve and plastic intake manifold |
| CN104265514B (en) * | 2014-09-24 | 2016-06-15 | 安徽江淮汽车股份有限公司 | The attachment structure of EGR exhaust mozzle and EGR valve and plastic air intake manifold |
| WO2016092217A1 (en) * | 2014-12-12 | 2016-06-16 | Valeo Systemes De Controle Moteur | Valve notably designed for a combustion engine |
| FR3029987A1 (en) * | 2014-12-12 | 2016-06-17 | Valeo Systemes De Controle Moteur | VALVE NOTABLY AGENCED FOR A COMBUSTION ENGINE |
| US9541044B2 (en) | 2015-01-27 | 2017-01-10 | Ford Global Technologies, Llc | Intake manifold secondary gas distribution via structural posts |
| CN107387932A (en) * | 2017-08-01 | 2017-11-24 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of vent method that can effectively suppress pipeline valve cavitation corrosion |
| CN111295505A (en) * | 2017-11-15 | 2020-06-16 | 雷诺股份公司 | Powertrain with improved contaminant removal system |
| CN113323775A (en) * | 2021-06-30 | 2021-08-31 | 中国第一汽车股份有限公司 | Exhaust gas recirculation air inlet unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101832201B (en) | 2012-05-02 |
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