CN202746036U - Engine EGR pipe assembly - Google Patents
Engine EGR pipe assembly Download PDFInfo
- Publication number
- CN202746036U CN202746036U CN2012204427252U CN201220442725U CN202746036U CN 202746036 U CN202746036 U CN 202746036U CN 2012204427252 U CN2012204427252 U CN 2012204427252U CN 201220442725 U CN201220442725 U CN 201220442725U CN 202746036 U CN202746036 U CN 202746036U
- Authority
- CN
- China
- Prior art keywords
- egr pipe
- pipeline
- pipe assembly
- engine
- intake manifold
- 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.)
- Expired - Fee Related
Links
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 16
- 239000007769 metal material Substances 0.000 abstract description 4
- 238000013016 damping Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 239000002912 waste gas Substances 0.000 description 11
- 239000007789 gas Substances 0.000 description 9
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 5
- 238000007599 discharging Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010943 off-gassing Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The utility model relates to an engine EGR (Exhaust Gas Recirculation) pipe assembly which comprises a pipeline. One end of the pipeline is connected with an engine exhaust pipe by a flange; the other end of the pipeline is connected with a gas outlet joint by a connecting flange; the gas outlet joint is connected to the inside of an intake manifold; the open direction of the gas outlet joint is opposite to the direction along which clean air enters the intake manifold; the middle of the pipeline is sleeved with a bracket; the bracket is connected with an intake manifold shell; and one section of the pipeline is a bellows. Compared with the prior art, the engine EGR pipe assembly has god use performance and can fulfill the purpose of reducing nitric oxide in exhausted gas as long as the open direction of the gas outlet joint is kept opposite to the clean air inlet direction in the installing process; the engine EGR pipe assembly is safe and reliable; the shape of an EGR pipe can be flexibly designed according to the installation position on a vehicle; the engine EGR pipe assembly is applicable to different vehicle types; the EGR pipe is made of a temperature-resistant and pressure-resistant metal material; the integral vibration is reduced by utilizing the damping effect of the bellows and the EGR pipe is connected by a bolt so as to realize the operating reliability of the EGR pipe.
Description
Technical field
The utility model relates to the vehicle engine exhaust gas circulation means, especially relates to a kind of engine EGR pipe assembly.
Background technique
EGR, i.e. technology that air inlet side once again burn it isolated and imported to exhaust gas recirculatioon (Exhaust Gas Recirculation) with the part of Exhaust Gas with compact internal combustion engine for automobile after burning.Main purpose can improve the rate of fuel consumption rate for the nitrogen oxide (NOx) that reduces in the Exhaust Gas when sharing sub load.
Now, in order to reduce automobile emission, the EGR technology obtains general application at automobile, and it is the recycling to waste gas, reaches the purpose that reduces discharged nitrous oxides.The EGR pipe is that part waste gas is reintroduced in the cylinder, changes mixture combustion environment in the cylinder.The EGR tubular construction mainly designs according to performance requirement, emission request and the mounting point of motor.
The EGR pipe of installing at automobile at present, the opening direction of its air outlet adapter is mostly the direction that waste gas enters intake manifold is identical with the flow direction of cleaned air, or the flow direction of waste gas becomes 90 ° with airintake direction, so that part waste gas can not well mix with fresh air, enter into the distribution that the waste gas of every cylinder can not be average, affect the performance of motor and the discharging of waste gas.
The model utility content
The purpose of this utility model be exactly provide in order to overcome the defective that above-mentioned prior art exists a kind of simple in structure, usability good, safe and reliable engine EGR pipe assembly.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of engine EGR pipe assembly, comprise pipeline, one end of pipeline is by flange connecting engine outlet pipe, this engine EGR pipe assembly also comprises adpting flange, air outlet adapter and support, the other end of described pipeline connects air outlet adapter by adpting flange, described air outlet adapter is connected in the intake manifold, the opening direction of described air outlet adapter and cleaned air enter the opposite direction of intake manifold, the middle part of described pipeline is arranged with support, this support is connected with the intake manifold housing, described pipeline wherein one section be bellows.
Described pipeline, adpting flange and air outlet adapter are welded to connect and are integrated.
Described support is provided with two.
Described support is connected with the intake manifold housing by bolt and nut.
Described EGR pipe adopts the metallic material of heat resisting and pressure resisting to make.
The pipeline of described EGR pipe has one section to adopt bellows-shaped for damping.
The opening direction of described air outlet adapter keeps entering the opposite direction of intake manifold with cleaned air, so that the outgassing direction of waste gas is opposite with the cleaned air airintake direction, dirty air and cleaned air can well mix, and mean allocation reduces the nitrogen oxides of exhaust gas discharging in every cylinder.The waste gas of introducing can reduce the in-cylinder combustion temperature to a certain extent, makes oxygen concentration reduction in the mixed gas, thereby suppresses the generation of nitrogen oxide, reduces discharging, makes automobile emissions standards up to standard.
The shape of described EGR pipe can be according to the mounting point flexible design, as long as keep the opening direction of air outlet adapter.
Compared with prior art, the utlity model has following advantage and beneficial effect:
(1) usability is good: as long as keep the opening direction of air outlet adapter opposite with the cleaned air airintake direction when installing, dirty air and cleaned air are well mixed, mean allocation reaches the purpose that reduces nox in exhaust in every cylinder.
(2) safe and reliable: the shape of EGR pipe can be applicable to different vehicles according to mounting point flexible design onboard, and the EGR pipe adopts the metallic material of heat resisting and pressure resisting; Utilize the cushioning effect of bellows to reduce whole vibrations, and be bolted, realize that the EGR plumber makes reliability.
Description of drawings
Fig. 1 is the structural representation of the utility model EGR pipe.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Embodiment
A kind of engine EGR pipe assembly, structure as shown in Figure 1, comprise pipeline 4, one end of pipeline 4 is by flange 5 connecting engine outlet pipes, this engine EGR pipe assembly also comprises adpting flange 2, air outlet adapter 1 and support 3, the other end of pipeline 4 connects air outlet adapter 1 by adpting flange 2, air outlet adapter 1 is connected in the intake manifold, the opening direction of air outlet adapter 1 and cleaned air enter the opposite direction of intake manifold, the middle part of pipeline 4 is arranged with two supports 3, and these two supports 3 are connected with the intake manifold housing by bolt and nut, keeps the opening direction of air outlet adapter 1 to maintain static, pipeline 4 wherein one section be bellows 41, bellows 41 is set for damping.Wherein, pipeline 4, adpting flange 2 and air outlet adapter 1 are welded to connect and are integrated.The EGR pipe adopts the metallic material of heat resisting and pressure resisting to make.
The opening direction of air outlet adapter 1 keeps entering the opposite direction of intake manifold with cleaned air, so that the outgassing direction of waste gas is opposite with the cleaned air airintake direction, dirty air and cleaned air can well mix, and mean allocation reduces the nitrogen oxides of exhaust gas discharging in every cylinder.The waste gas of introducing can reduce the in-cylinder combustion temperature to a certain extent, makes oxygen concentration reduction in the mixed gas, thereby suppresses the generation of nitrogen oxide, reduces discharging, makes automobile emissions standards up to standard.The shape of EGR pipe can be according to the mounting point flexible design, as long as keep the opening direction of air outlet adapter 1.
Claims (4)
1. engine EGR pipe assembly, comprise pipeline (4), one end of pipeline (4) is by flange (5) connecting engine outlet pipe, it is characterized in that, this engine EGR pipe assembly also comprises adpting flange (2), air outlet adapter (1) and support (3), the other end of described pipeline (4) connects air outlet adapter (1) by adpting flange (2), described air outlet adapter (1) is connected in the intake manifold, the opposite direction that the opening direction of described air outlet adapter (1) and cleaned air enter intake manifold, the middle part of described pipeline (4) is arranged with support (3), this support (3) is connected with the intake manifold housing, described pipeline (4) wherein one section be bellows (41).
2. a kind of engine EGR pipe assembly according to claim 1 is characterized in that, described pipeline (4), adpting flange (2) and air outlet adapter (1) are welded to connect and are integrated.
3. a kind of engine EGR pipe assembly according to claim 1 is characterized in that, described support (3) is provided with two.
4. a kind of engine EGR pipe assembly according to claim 1 is characterized in that, described support (3) is connected with the intake manifold housing by bolt and nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204427252U CN202746036U (en) | 2012-08-31 | 2012-08-31 | Engine EGR pipe assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204427252U CN202746036U (en) | 2012-08-31 | 2012-08-31 | Engine EGR pipe assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202746036U true CN202746036U (en) | 2013-02-20 |
Family
ID=47705441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204427252U Expired - Fee Related CN202746036U (en) | 2012-08-31 | 2012-08-31 | Engine EGR pipe assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202746036U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533667A (en) * | 2014-12-18 | 2015-04-22 | 重庆小康工业集团股份有限公司 | Damping valve body support |
-
2012
- 2012-08-31 CN CN2012204427252U patent/CN202746036U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533667A (en) * | 2014-12-18 | 2015-04-22 | 重庆小康工业集团股份有限公司 | Damping valve body support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20210831 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |