CN109058617A - A kind of engine EGR system high temperature pipeline - Google Patents
A kind of engine EGR system high temperature pipeline Download PDFInfo
- Publication number
- CN109058617A CN109058617A CN201810950360.6A CN201810950360A CN109058617A CN 109058617 A CN109058617 A CN 109058617A CN 201810950360 A CN201810950360 A CN 201810950360A CN 109058617 A CN109058617 A CN 109058617A
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- Prior art keywords
- connecting tube
- high temperature
- egr system
- system high
- engine egr
- 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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- 238000005452 bending Methods 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 6
- 230000001154 acute effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 241000233855 Orchidaceae Species 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000001629 suppression Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 12
- 238000002485 combustion reaction Methods 0.000 description 5
- 238000013016 damping Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/14—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
- F16L11/15—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics corrugated
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L43/00—Bends; Siphons
- F16L43/001—Bends; Siphons made of metal
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The present invention discloses a kind of engine EGR system high temperature pipeline, is related to engine exhaust technical field, and this application provides a kind of engine EGR system high temperature pipelines comprising: bellows, flange, horn mouth, the first connecting tube, the second connecting tube；Wherein, one end of the bellows is connected to horn mouth by the first connecting tube, and the other end is connected to flange by the second connecting tube.By being equipped with a connecting hole in the side of flange, it is capable of providing strong lateral support in connection, improves the reliability of flanged joint.The bellows has preferable effectiveness in vibration suppression.In addition, entire engine EGR system high temperature pipeline structure is simple, lower production costs.
Description
Technical field
The present invention relates to engine exhaust technical field more particularly to a kind of engine EGR system high temperature pipelines.
Background technique
Engine is used to provide power for automobile, and usually internal combustion engine, can be divided into diesel engine, petrol engine；Often
The gasoline engine and diesel engine seen belong to reciprocating piston internal combustion engine, are the machinery for converting the chemical energy of fuel to piston motion
Can and external output power.During internal combustion engine provides power, the high-temp waste gas that will be generated is needed to be discharged.
The exhaust gas that engine EGR system high temperature pipeline is used to that engine to be guided to be discharged.Since engine exhaust gas temperature is high, tool
It is corrosive, it is therefore desirable to which exhaust pipe of engine needs are heat-resisting, corrosion-resistant.In addition, the exhaust gas of discharge tends to cause to be vented
Tube vibration.
To sum up, the exhaust pipe of engine needs high temperature resistant, corrosion-resistant, and needs to have the function of vibration damping and noise reduction.Engine
Exhaust pipe long-term work is easy to appear various problems under severe operating condition.
Summary of the invention
Technical problem to be solved by the present invention lies in propose a kind of engine EGR for the above-mentioned deficiency of the prior art
System high temperature pipeline, to overcome severe operating condition, work steady in a long-term.
The engine EGR system high temperature pipeline includes: bellows, flange, horn mouth, the first connecting tube, the second connection
Pipe；Wherein, one end of the bellows is connected to horn mouth by the first connecting tube, and the other end is connected to by the second connecting tube
Flange；
The horn mouth be it is horn-like, the lesser one end of diameter is fixed in the first connecting tube, and in the outer of the other end
Edge has a notch；
The flange includes a ring flange, and is equipped with an interconnecting piece in the side of one end close to the second connecting tube, described
The surface of interconnecting piece and the side of ring flange are generally aligned in the same plane, the interconnecting piece have one perpendicular to the plane connection
Hole；At least two connecting holes are equipped in the end face of the ring flange.
Optionally, first connecting tube and the second connecting tube are bending, and the bending angle of first connecting tube is
The bending angle of acute angle, second connecting tube is right angle, and the first connecting tube is different from the bending direction of the second connecting tube；Institute
The thickness for stating the second connecting tube is greater than the thickness of the first connecting tube.
Optionally, the ring flange has a center opening, and the center opening is identical as the internal diameter of the second connecting tube, and
It is conducted with the internal diameter of the second connecting tube；There is a chamfering in the exit of the center opening.
Optionally, two connecting holes are symmetrically arranged with along ring flange center in the end face of the ring flange.
Optionally, described lesser one end of bell-mouthed diameter is socketed in the first connecting tube.
Optionally, the engine EGR system high temperature pipeline is made of stainless steel material.
Optionally, the bellows is that water rises bellows.
Optionally, the bellows is double-ply bellows.
Optionally, the both ends of the bellows use laser welding, connect with the first connecting tube, the second connecting tube.
Optionally, second connecting tube and flange are integrally formed.
This application provides a kind of engine EGR system high temperature pipelines comprising: bellows, flange, horn mouth, first
Connecting tube, the second connecting tube；Wherein, one end of the bellows is connected to horn mouth by the first connecting tube, and the other end passes through
Second connecting tube is connected to flange.By being equipped with a connecting hole in the side of flange, it is capable of providing in connection strong lateral
Support, improves the reliability of flanged joint.The bellows has preferable effectiveness in vibration suppression.In addition, entire engine EGR system
High temperature conduit structure is simple, lower production costs.
The bellows in addition, the application can also be risen using Double-layer water can be played good with obtaining good elasticity and toughness
Damping effect, and water rise molding pipe consistency and entirety mechanical performance it is all very outstanding.
In addition, the application can also use continuous laser welding to take over generation soldering, it is further ensured that the elastic and tough of bellows
Property.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of engine EGR system high temperature pipeline shown according to an exemplary embodiment.
Fig. 2 is that the structure of the other direction of engine EGR system high temperature pipeline shown according to an exemplary embodiment is shown
It is intended to.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.In the following description, the specific detail of such as specific configuration and component is provided
Just for the sake of helping comprehensive understanding embodiments herein.It therefore, it will be apparent to those skilled in the art that can be to retouching here
The embodiment stated makes various changes and modifications without departing from the scope and spirit of the present application.In addition, for clarity and brevity, saving
The description to known function and construction is omited.
In the embodiment of the present application, engine EGR system high temperature pipeline application is in automobile engine, the automobile engine
It can be internal combustion engine.The engine EGR system high temperature pipeline is used for the exhaust of internal combustion engine.
Fig. 1 is the structural schematic diagram of engine EGR system high temperature pipeline shown according to an exemplary embodiment.With reference to figure
1, the engine EGR system high temperature pipeline includes: bellows 1, flange 2, horn mouth 3, the first connecting tube 4, the second connecting tube
5；Wherein, one end of the bellows 1 is connected to horn mouth 3 by the first connecting tube 4, and the other end is connected by the second connecting tube 5
It is connected to flange 2.
In the embodiment of the present application, engine EGR system high temperature pipeline has bellows 1, and bellows 1 carries out during installation
It is irregular turning, flexible, so that gas exhaust piping adaptability with higher during installation.In addition, the exhaust gas tool of engine discharge
There is higher temperature, entire pipeline is caused to be easy to happen deformation, bellows 1 can absorb these deformation.
It in addition, the surface of the bellows 1 and the contact surface of air are larger, can radiate, be started with reducing faster
The temperature of machine egr system high temperature conduit.In addition, the bellows 1 has good elasticity and toughness, there is preferable vibration damping effect
Fruit.
In the embodiment of the present application, the bellows 1 is that water rises bellows.The bellows 1 can be risen ripple using water
Pipe can play good damping effect to obtain good elasticity and toughness, and water rises molding pipe consistency and entirety
Mechanical performance it is all very outstanding.
In the embodiment of the present application, the bellows 1 is double-ply bellows, to further increase effectiveness in vibration suppression.
In the embodiment of the present application, the both ends of the bellows 1 use laser welding, connect with the first connecting tube 4, second
Pipe 5 connects, and takes over generation soldering by using continuous laser welding, is further ensured that the elasticity and toughness of bellows 1；Laser welding exists
There is good switching performance under the operating condition of high temperature.
In the embodiment of the present application, first connecting tube 4 and the second connecting tube 5 are bending, first connecting tube 4
Bending angle be acute angle, the bending angle of second connecting tube 5 is right angle, and the first connecting tube 4 and the second connecting tube 5
Bending direction is different；The thickness of second connecting tube 5 is greater than the thickness of the first connecting tube 4；
First connecting tube 4 and the second connecting tube 5 are bending, are conducive to entire engine EGR system high temperature pipeline
Installation, since various components are distributed in engine environment, bending is easier to install.Specifically, first connecting tube 4
Bending angle be acute angle, the bending angle of second connecting tube 5 is right angle, and the first connecting tube 4 and the second connecting tube 5
Bending direction is different, which is bent distribution in space.Due to engine EGR system high temperature pipe
The bending distribution on road can also improve the length of pipeline, be conducive to radiate.
Further, the thickness of second connecting tube 5 is greater than the thickness of the first connecting tube 4.The exhaust gas of engine can be from
Flange 2 enters, and successively passes through the second connecting tube 5, bellows 1, the first connecting tube 4, horn mouth 3.Since exhaust gas enters from flange 2
When, exhaust gas temperature with higher and speed, the second connecting tube 5 can preferably bear the impact of exhaust gas with higher caliper,
By bellows 1, the temperature and speed of exhaust gas decrease, and the first connecting tube 4 can have relatively low thickness.By fine
Setting the first connecting tube 4 and the second connecting tube 5 thickness, can not only meet the needs of gas exhaust piping, additionally it is possible to appropriate drop
The thick bottom of low first connecting tube 4, to reduce production cost.
In the embodiment of the present application, the horn mouth 3 is horn-like, and the lesser one end of diameter is fixed in the first connecting tube
On 4, and there is a notch 31 in the outer rim of the other end.The diameter of first connecting tube 4 is immutable, can be connected by horn mouth 3
The pipeline of different-diameter is conducive to the adaptability for increasing engine EGR system high temperature pipeline, applies the automobile in different model
On.
Further, since pipeline is usually spatial form, notch 31 is conducive to unified setting angle, guarantees the one of automobile product
Cause property, i.e., so that it is all identical that other pipelines and horn mouth 3, which connect rear direction,.
In the embodiment of the present application, lesser one end of diameter of the horn mouth 3 is socketed in the first connecting tube 4.
With continued reference to Fig. 2, the flange 2 includes a ring flange 21, and is set in the side of one end close to the second connecting tube 5
There is an interconnecting piece 22, the surface 221 of the interconnecting piece 22 is generally aligned in the same plane with the side 211 of ring flange 21, the interconnecting piece
22 with one perpendicular to the plane connecting hole 222；At least two connecting holes are equipped in the end face 215 of the ring flange 21
212。
In the embodiment of the present application, by the side of flange 2 be equipped with a connecting hole 222, and using the connecting hole 222 into
Row connection is capable of providing strong lateral support in connection, improves the reliability of flanged joint.
In the embodiment of the present application, the ring flange 21 has a center opening 213, the center opening 231 and second
The internal diameter of connecting tube 5 is identical, and is conducted with the internal diameter of the second connecting tube 5；Have one in the exit of the center opening 213
Chamfering 214.The chamfering 214 is conducive to guide exhaust gas.
In the embodiment of the present application, two connections are symmetrically arranged with along ring flange center in the end face 215 of the ring flange 21
Hole 212.Connecting hole 212 is symmetrical arranged to be conducive to be supported between two junctions and be uniformly distributed, and is conducive to improve flanged joint
Stability and durability.
In the embodiment of the present application, the engine EGR system high temperature pipeline is made of stainless steel material.Stainless steel material
Without plating, heat resistance, good corrosion resistance is conducive to the work steady in a long-term of engine EGR system high temperature pipeline
In the embodiment of the present application, second connecting tube 5 and flange 2 are integrally formed.Integrated molding eliminates flange 2
And second connect between connecting tube 5, increases the reliability of engine EGR system high temperature pipeline.
In addition, entire engine EGR system high temperature pipeline structure is simple, lower production costs.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (10)
1. a kind of engine EGR system high temperature pipeline, which is characterized in that the engine EGR system high temperature pipeline includes: ripple
Pipe, flange, horn mouth, the first connecting tube, the second connecting tube；Wherein, one end of the bellows is connected by the first connecting tube
To horn mouth, the other end is connected to flange by the second connecting tube；
The horn mouth be it is horn-like, the lesser one end of diameter is fixed in the first connecting tube, and the outer rim of the other end have
There is a notch；
The flange includes a ring flange, and is equipped with an interconnecting piece, the connection in the side of one end close to the second connecting tube
The surface in portion and the side of ring flange are generally aligned in the same plane, the interconnecting piece have one perpendicular to the plane connecting hole；?
The end face of the ring flange is equipped at least two connecting holes.
2. engine EGR system high temperature pipeline according to claim 1, which is characterized in that first connecting tube and the
Two connecting tubes are bending, and the bending angle of first connecting tube is acute angle, and the bending angle of second connecting tube is straight
Angle, and the first connecting tube is different from the bending direction of the second connecting tube；The thickness of second connecting tube is greater than the first connecting tube
Thickness.
3. engine EGR system high temperature pipeline according to claim 1, which is characterized in that the ring flange has in one
Heart aperture, the center opening is identical as the internal diameter of the second connecting tube, and is conducted with the internal diameter of the second connecting tube；In described
The exit of heart aperture has a chamfering.
4. engine EGR system high temperature pipeline according to claim 1, which is characterized in that in the end face of the ring flange
Two connecting holes are symmetrically arranged with along ring flange center.
5. engine EGR system high temperature pipeline according to claim 1, which is characterized in that the bell-mouthed diameter compared with
Small one end is socketed in the first connecting tube.
6. engine EGR system high temperature pipeline according to claim 1, which is characterized in that the engine EGR system is high
Warm pipeline is made of stainless steel material.
7. engine EGR system high temperature pipeline according to claim 1, which is characterized in that the bellows is that water rises wave
Line pipe.
8. engine EGR system high temperature pipeline according to claim 7, which is characterized in that the bellows is the double-deck wave
Line pipe.
9. engine EGR system high temperature pipeline according to claim 1, which is characterized in that adopt at the both ends of the bellows
With laser welding, it is connect with the first connecting tube, the second connecting tube.
10. engine EGR system high temperature pipeline according to claim 1, which is characterized in that second connecting tube and method
Orchid is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810950360.6A CN109058617A (en) | 2018-08-20 | 2018-08-20 | A kind of engine EGR system high temperature pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810950360.6A CN109058617A (en) | 2018-08-20 | 2018-08-20 | A kind of engine EGR system high temperature pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109058617A true CN109058617A (en) | 2018-12-21 |
Family
ID=64687594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810950360.6A Pending CN109058617A (en) | 2018-08-20 | 2018-08-20 | A kind of engine EGR system high temperature pipeline |
Country Status (1)
| Country | Link |
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| CN (1) | CN109058617A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10319451A1 (en) * | 2003-04-30 | 2004-11-25 | Iwka Balg- Und Kompensatoren-Technologie Gmbh | Piping for recycling of exhaust gas recirculation in an internal combustion engines, like in motor vehicles, comprises at least one section with at least two solid layers with smooth surfaces |
| CN202431400U (en) * | 2011-10-30 | 2012-09-12 | 临海市伟达汽车部件有限公司 | Assembly part of exhaust air inlet pipe |
| CN203906128U (en) * | 2014-06-10 | 2014-10-29 | 安徽江淮汽车股份有限公司 | Engine exhaust gas recirculation pipe and engine exhaust gas recirculation assembly |
| CN204573350U (en) * | 2015-01-30 | 2015-08-19 | 天津市鹤鼎工贸有限公司 | Internal-combustion engine connecting tube |
| CN204921804U (en) * | 2015-08-28 | 2015-12-30 | 宁波好格电器有限公司 | Engine cylinder suspension inner frame |
| CN208900875U (en) * | 2018-08-20 | 2019-05-24 | 宁波泰尔汽车部件有限公司 | A kind of engine EGR system high temperature pipeline |
-
2018
- 2018-08-20 CN CN201810950360.6A patent/CN109058617A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10319451A1 (en) * | 2003-04-30 | 2004-11-25 | Iwka Balg- Und Kompensatoren-Technologie Gmbh | Piping for recycling of exhaust gas recirculation in an internal combustion engines, like in motor vehicles, comprises at least one section with at least two solid layers with smooth surfaces |
| CN202431400U (en) * | 2011-10-30 | 2012-09-12 | 临海市伟达汽车部件有限公司 | Assembly part of exhaust air inlet pipe |
| CN203906128U (en) * | 2014-06-10 | 2014-10-29 | 安徽江淮汽车股份有限公司 | Engine exhaust gas recirculation pipe and engine exhaust gas recirculation assembly |
| CN204573350U (en) * | 2015-01-30 | 2015-08-19 | 天津市鹤鼎工贸有限公司 | Internal-combustion engine connecting tube |
| CN204921804U (en) * | 2015-08-28 | 2015-12-30 | 宁波好格电器有限公司 | Engine cylinder suspension inner frame |
| CN208900875U (en) * | 2018-08-20 | 2019-05-24 | 宁波泰尔汽车部件有限公司 | A kind of engine EGR system high temperature pipeline |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181221 |
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| RJ01 | Rejection of invention patent application after publication |