CN209469517U - A kind of heat-insulating and sealing structure between exhaust gas recirculation valve and resin intake manifold - Google Patents
A kind of heat-insulating and sealing structure between exhaust gas recirculation valve and resin intake manifold Download PDFInfo
- Publication number
- CN209469517U CN209469517U CN201822068261.3U CN201822068261U CN209469517U CN 209469517 U CN209469517 U CN 209469517U CN 201822068261 U CN201822068261 U CN 201822068261U CN 209469517 U CN209469517 U CN 209469517U
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- China
- Prior art keywords
- gas recirculation
- exhaust gas
- heat
- recirculation valve
- insulating
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Abstract
Stainless steel gasket and teflon gasket is arranged in a kind of heat-insulating and sealing structure between exhaust gas recirculation valve and resin intake manifold on diversion pipe；Heat-insulating and sealing structure is mounted between exhaust gas recirculation valve and inlet manifold, and exhaust gas recirculation valve is fixed on resin intake manifold using bolt.Exhaust ventilation passes through exhaust gas recirculation valve, enters in inlet manifold by diversion pipe.The material of exhaust gas recirculation valve, stainless steel gasket and diversion pipe is metal, thermal coefficient is high, and the material polytetrafluoroethylene (PTFE) of teflon gasket has the characteristics that heat-insulated and heatproof, long-term use temperature is up to 250 DEG C, and thermal coefficient is low, belong to thermal insulation material, the heat being transmitted in inlet manifold can be effectively reduced.The utility model structure is simple, it is ensured that gas recirculation system works normally, and No leakage phenomenon occurs, and is applied in gasoline automobile engine technical field.
Description
Technical field
The utility model relates to one of gasoline automobile engine technical field exhaust gas recirculation valve and resin air inlet discrimination
Heat-insulating and sealing structure between pipe.
Background technique
Currently, gas recirculation system be portion discharge exhaust gas is transmitted back to gas handling system, and with fresh fuel mixture
Body is again introduced into cylinder together, reduces the ignition temperature in cylinder, can not only reduce the discharge of nitrogen oxides, but also can reduce
Oil consumption belongs to and applies more extensive one of technology suitable for automobile engine.Show automobile engine to reduce part weight
Amount and cost, will use resin intake manifold.But the exhaust ventilation due to being introduced into gas handling system by exhaust gas recirculation valve is most
High-temperature is up to 250 DEG C, and for the inlet manifold for using resin material, long-term use temperature is only at 100 DEG C or so, exhaust
The heat of exhaust gas is transmitted to inlet manifold by the exhaust gas recirculation valve seat of metal material, and the resin material that will lead to connecting place produces
Heat deformation, causes exhaust ventilation to be let out, is unable to satisfy expected amount of exhaust gas recirculation, lacks gas recirculation system funtion part
It loses.Traditional metal gasket be heat good conductor, only can guarantee sealing, can not trap heat transmitting.Polytetrafluoroethylene material
Has the characteristics that heat-insulated and heatproof, long-term use temperature is up to 250 DEG C, and thermal coefficient is low, can conduct with trap heat.Cause
This, the heat-insulating and sealing structure developed between a kind of exhaust gas recirculation valve and resin intake manifold is always new class anxious to be resolved
Topic.
Utility model content
The purpose of this utility model is to provide the heat-insulating and sealing knots between a kind of exhaust gas recirculation valve and resin intake manifold
Structure, for the utility model by teflon gasket and draft tube structure, the heat for reducing exhaust ventilation is transmitted to inlet manifold
On, guarantee sealing, realizes the normal work of gas recirculation system.
Purpose of the utility model is realized as follows: heat-insulated close between a kind of exhaust gas recirculation valve and resin intake manifold
Stainless steel gasket and polytetrafluoro is arranged in seal structure, including teflon gasket, diversion pipe, stainless steel gasket on diversion pipe
Ethylene gasket；Heat-insulating and sealing structure is mounted between exhaust gas recirculation valve and inlet manifold, and is followed exhaust gas again using bolt
Ring valve is fixed on resin intake manifold.
The utility model is characterized by its structure.Its operation principle and using method is that exhaust ventilation passes through exhaust gas
Recycle valve enters in inlet manifold by diversion pipe.The heat of this event exhaust exhaust gas passes through exhaust gas recirculation valve-
Stainless steel gasket-diversion pipe-teflon gasket is transmitted in inlet manifold.Exhaust gas recirculation valve, stainless steel gasket and
The material of diversion pipe is metal, and thermal coefficient is high, and the material polytetrafluoroethylene (PTFE) of teflon gasket is with heat-insulated and resistance to
Temperature feature, long-term use temperature is up to 250 DEG C, and thermal coefficient is low, belongs to thermal insulation material, can effectively reduce be transmitted into
Heat on gas manifold.PTFE has self-sealing simultaneously, ensures that enough leakproofness.Stainless steel gasket guarantees exhaust gas again
Leakproofness between circulating valve and diversion pipe.Utilize the thermal insulation and temperature tolerance of PTFE material and the sealing of common stainless steel gasket
Property, guarantee the sealing performance between exhaust gas recirculation valve and resin intake manifold, works normally gas recirculation system.
A kind of heat-insulating and sealing structure between exhaust gas recirculation valve and resin intake manifold compared with prior art, has structure
Simply, it is ensured that the advantages that gas recirculation system works normally, and No leakage phenomenon occurs will be widely used in gasoline vapour
In car engine technical field.
Detailed description of the invention
The utility model is described in detail with reference to the accompanying drawings and embodiments.
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the location drawing of the utility model in gas recirculation system.
Specific embodiment
Referring to attached drawing, a kind of heat-insulating and sealing structure between exhaust gas recirculation valve and resin intake manifold, including polytetrafluoroethyl-ne
Stainless steel gasket 3 and teflon gasket 1 is arranged in alkene gasket 1, diversion pipe 2, stainless steel gasket 3 on diversion pipe 2；It will be every
Heat seal structure is mounted between exhaust gas recirculation valve 5 and inlet manifold 6, and is fixed on exhaust gas recirculation valve 5 using bolt 4
On resin intake manifold 6.
The working principle and use of heat-insulating and sealing structure between a kind of described exhaust gas recirculation valve and resin intake manifold
Method is that exhaust ventilation passes through exhaust gas recirculation valve 5, is entered in inlet manifold 6 by diversion pipe 2.This event exhaust is useless
The heat of gas is transmitted to air inlet discrimination by 5-stainless steel gasket of exhaust gas recirculation valve, 3-diversion pipe, 2-teflon gasket 1
On pipe 6.The material of exhaust gas recirculation valve 5, stainless steel gasket 3 and diversion pipe 2 is metal, and thermal coefficient is high, and polytetrafluoroethyl-ne
The material polytetrafluoroethylene (PTFE) of alkene gasket 1 has the characteristics that heat-insulated and heatproof, and long-term use temperature is up to 250 DEG C, and thermal coefficient
It is low, belong to thermal insulation material, the heat being transmitted in inlet manifold 6 can be effectively reduced.PTFE has self-sealing simultaneously, and can
Guarantee enough leakproofness.Stainless steel gasket 3 guarantees leakproofness between exhaust gas recirculation valve 5 and diversion pipe 2.Utilize PTFE material
Thermal insulation and temperature tolerance and common stainless steel gasket leakproofness, guarantee between exhaust gas recirculation valve 5 and resin intake manifold 6
Sealing performance works normally gas recirculation system.
Claims (1)
1. the heat-insulating and sealing structure between a kind of exhaust gas recirculation valve and resin intake manifold, including teflon gasket, water conservancy diversion
Pipe, stainless steel gasket, it is characterised in that: stainless steel gasket and teflon gasket are set on diversion pipe；By heat-insulating and sealing
Structure is mounted between exhaust gas recirculation valve and inlet manifold, and exhaust gas recirculation valve is fixed on resin air inlet discrimination using bolt
Guan Shang.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822068261.3U CN209469517U (en) | 2018-12-11 | 2018-12-11 | A kind of heat-insulating and sealing structure between exhaust gas recirculation valve and resin intake manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822068261.3U CN209469517U (en) | 2018-12-11 | 2018-12-11 | A kind of heat-insulating and sealing structure between exhaust gas recirculation valve and resin intake manifold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209469517U true CN209469517U (en) | 2019-10-08 |
Family
ID=68089229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822068261.3U Active CN209469517U (en) | 2018-12-11 | 2018-12-11 | A kind of heat-insulating and sealing structure between exhaust gas recirculation valve and resin intake manifold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209469517U (en) |
-
2018
- 2018-12-11 CN CN201822068261.3U patent/CN209469517U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |