CN103925120A - EGR connection tube assembly of engine - Google Patents
EGR connection tube assembly of engine Download PDFInfo
- Publication number
- CN103925120A CN103925120A CN201410190216.9A CN201410190216A CN103925120A CN 103925120 A CN103925120 A CN 103925120A CN 201410190216 A CN201410190216 A CN 201410190216A CN 103925120 A CN103925120 A CN 103925120A
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- CN
- China
- Prior art keywords
- egr
- bellows segment
- motor
- connecting pipe
- pipe component
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- 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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- 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
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- Exhaust-Gas Circulating Devices (AREA)
Abstract
The invention discloses an EGR connection tube assembly of an engine. The assembly comprises a first corrugated section, a second corrugated section and a combined support, wherein one end of the first corrugated section is connected with an EGR valve of the engine through a first connection flange, one end of the second corrugated section is connected with an EGR cooler of the engine through a second connection flange, a straight tube section is disposed between the other end of the second corrugated section and the other end of the first corrugated section, and the combined support is used for fixing the straight tube section. A corrugated tube of the EGR connection tube assembly is divided into the two sections, the middle of the corrugated tube is the straight tube section, and accordingly decoupling performance is good. By means of the installation mode that the middle combined support is flexibly fixed and the two ends are fixed, the effects of adjusting errors and reducing vibration are achieved, and an EGR connection tube is prevented from being broken.
Description
Technical field
The present invention relates to motor, particularly a kind of EGR connecting pipe component of motor.
Background technique
In the egr system of available engine, EGR connecting tube one end is connected on EGR valve, one end is connected on cooler for recycled exhaust gas, general EGR connecting tube is the overall pipe fitting that 0.8mm is thick, because EGR connecting tube two ends are to connect different component, installation dimension is difficult to control, after installation, can cause producing vibration, and distant between EGR valve and cooler for recycled exhaust gas, the bellows segment of existing EGR connecting tube is thicker, ripple number is few, thereby make bellows harder, decoupling is poor, do not have the effect of eliminating alignment error, so, in the working procedure of motor, above-mentioned cooler vibration fierceness is also delivered on connecting tube, easily cause connecting tube vibration fierce, thereby break.
The information that is disclosed in this background technique part is only intended to increase the understanding to general background of the present invention, and should not be regarded as admitting or imply that in any form this information structure has been the known prior art of persons skilled in the art.
Summary of the invention
The object of the present invention is to provide a kind of EGR connecting pipe component of motor, by changing form and the composite design cribbing of connecting tube, make the decoupling of EGR connecting tube good, effectively reduce the vibrations of connecting tube, avoid EGR connecting tube to break.
For achieving the above object, the invention provides a kind of EGR connecting pipe component of motor, comprising: the first bellows segment, its one end is connected with the EGR valve of motor by the first adpting flange; The second bellows segment, its one end is connected with the cooler for recycled exhaust gas of motor by the second adpting flange, between the other end of the second bellows segment and the other end of the first bellows segment, is straight length; And modular support, it is used for fixing straight length position.
Preferably, modular support comprises semicircular plate and straight plate, the circular arc position front end of semicircular plate is provided with projection, the position, top of straight plate is provided with groove, the circular arc position of semicircular plate is fastened on a side of straight length, straight plate gear snaps in projection at opposite side and the groove of straight length, together with semicircular plate is bolted on the lower end of straight plate.
Preferably, the bottom part of straight plate is provided with bolt hole and is used for modular support to be fixed on the body of motor.
Preferably, the wall thickness of the first bellows segment and the second bellows segment is all 4mm.
Preferably, the spacing between the first bellows segment and the ripple of the second bellows segment is 4mm.
Compared with prior art, the present invention has following beneficial effect: the bellows of this EGR connecting pipe component is divided into two sections, centre is straight length, decoupling is good, by the flexible fixing and fixing mounting type in two ends of middle modular support, play regulating error, reduce the effect of vibrations, effectively avoid EGR connecting tube to break.
Brief description of the drawings
Fig. 1 is according to the structural representation of the EGR connecting pipe component of motor of the present invention;
Fig. 2 looks schematic diagram according to a left side for the EGR connecting pipe component of motor of the present invention;
Fig. 3 is according to the partial schematic diagram of the EGR connecting pipe component of motor of the present invention, and the distance between wall thickness and the ripple of bellows is shown;
Fig. 4 is according to the another partial schematic diagram of the EGR connecting pipe component of motor of the present invention, and the convex portion on semicircular plate is shown.
Main description of reference numerals:
1-the first bellows segment, 11-the first adpting flange, 2-the second bellows segment, 21-the second adpting flange, 3-straight length, 41-semicircular plate, the straight plate of 42-.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention is not subject to the restriction of embodiment.
Unless separately there is other clearly to represent, otherwise in whole specification and claims, term " comprises " or its conversion was stated being understood to include as " comprising " or " including " etc. element or constituent element, and do not get rid of other element or other constituent element.
As shown in Figure 1, according to the EGR connecting pipe component of the motor of the specific embodiment of the invention, comprise the first bellows segment 1, the second bellows segment 2 and modular support, modular support semicircular plate 41 and straight plate 42, one end of the first bellows segment 1 is connected with the EGR valve of motor by the first adpting flange 11, one end of the second bellows segment 2 is connected with the cooler for recycled exhaust gas of motor by the second adpting flange 21, between the other end of the second bellows segment 2 and the other end of the first bellows segment 1, is straight length 3.Modular support is used for fixing straight length position.Particularly, the first adpting flange 11 is installed fixing by 3 connecting bolts 12, and the second adpting flange 21 use connecting bolts 22 are connected and fixed with engine EGR cooler.
Wherein, the circular arc position front end of semicircular plate 41 is provided with projection 411, the position, top of straight plate 42 is provided with groove (not shown), the circular arc position of semicircular plate 41 is fastened on a side (referring to Fig. 2) of straight length 3, straight plate 42 keeps off at the opposite side of straight length 3 and groove and snaps in projection 411, and the lower end of semicircular plate 41 and straight plate 42 is fixed together by bolt 43.The bottom part of straight plate 42 is provided with bolt 44 and is used for modular support to be fixed on the body of motor.The wall thickness of the first bellows segment 1 and the second bellows segment 2 all can be designed as 4mm, and the spacing between the first bellows segment 1 and the ripple of the second bellows segment 2 is also 4mm, and decoupling is good.
To sum up, these EGR connecting pipe component two ends have fixing, centre has modular support flexible fixing, the bellows of EGR connecting pipe component is divided into two sections simultaneously, and the wall thickness of every section of ripple is 4mm, and the spacing between ripple is also 4mm, play regulating error, reduce the effect of vibrations, the modular support that semicircle template 41 and straight plate 42 form also plays the effect that regulates alignment error, reduces the effect of vibrations.
The aforementioned description to concrete exemplary of the present invention is in order to illustrate and the object of illustration.These descriptions not want the present invention to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.Exemplary embodiment is selected and the object described is to explain certain principles of the present invention and practical application thereof, thereby made those skilled in the art can realize and utilize various exemplary of the present invention and various selection and change.Scope of the present invention is intended to be limited by claims and equivalents thereof.
Claims (5)
1. an EGR connecting pipe component for motor, is characterized in that, comprising:
The first bellows segment, its one end is connected with the EGR valve of motor by the first adpting flange;
The second bellows segment, its one end is connected with the cooler for recycled exhaust gas of motor by the second adpting flange, between the other end of described the second bellows segment and the other end of described the first bellows segment, is straight length; And
Modular support, it is used for fixing described straight length position.
2. the EGR connecting pipe component of motor according to claim 1, it is characterized in that, described modular support comprises semicircular plate and straight plate, the circular arc position front end of described semicircular plate is provided with projection, the position, top of described straight plate is provided with groove, the circular arc position of described semicircular plate is fastened on a side of described straight length, and described straight plate gear snaps in described projection at opposite side and the described groove of described straight length, together with the lower end of described semicircular plate and described straight plate is bolted on.
3. the EGR connecting pipe component of motor according to claim 2, is characterized in that, the bottom part of described straight plate is provided with bolt hole and is used for described modular support to be fixed on the body of motor.
4. the EGR connecting pipe component of motor according to claim 1, is characterized in that, the wall thickness of described the first bellows segment and described the second bellows segment is all 4mm.
5. the EGR connecting pipe component of motor according to claim 4, is characterized in that, the spacing between described the first bellows segment and the ripple of described the second bellows segment is 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410190216.9A CN103925120B (en) | 2014-05-07 | 2014-05-07 | The EGR connecting pipe component of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410190216.9A CN103925120B (en) | 2014-05-07 | 2014-05-07 | The EGR connecting pipe component of motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103925120A true CN103925120A (en) | 2014-07-16 |
| CN103925120B CN103925120B (en) | 2016-04-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410190216.9A Active CN103925120B (en) | 2014-05-07 | 2014-05-07 | The EGR connecting pipe component of motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN103925120B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106198028A (en) * | 2016-08-29 | 2016-12-07 | 北京航天三发高科技有限公司 | A kind of block testing stand exhaust apparatus |
| CN108119713A (en) * | 2017-12-19 | 2018-06-05 | 浙江方圆机电设备制造有限公司 | A kind of combined type flexible Pressuretight sylphon bellows |
| CN111648883A (en) * | 2020-07-03 | 2020-09-11 | 安徽华菱汽车有限公司 | Air inlet pipeline system vibration/noise reduction device |
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| CN201106515Y (en) * | 2007-11-12 | 2008-08-27 | 西门子威迪欧亚太管理（上海）有限公司 | Fuel oil guideway assembly |
| CN202532096U (en) * | 2012-03-23 | 2012-11-14 | 十堰巨迪金属管业有限公司 | Connecting pipe for exhaust gas recirculation (EGR) system |
| WO2012177687A2 (en) * | 2011-06-21 | 2012-12-27 | Caterpillar Inc. | Egr flow control for large engines |
| JP2013053558A (en) * | 2011-09-05 | 2013-03-21 | Hino Motors Ltd | Anti-freezing device for egr device |
| CN203296965U (en) * | 2013-04-27 | 2013-11-20 | 东风朝阳朝柴动力有限公司 | Exhaust gas recirculation cooler support fixedly arranged on engine flywheel shell |
| CN203906126U (en) * | 2014-05-07 | 2014-10-29 | 广西玉柴机器股份有限公司 | Engine EGR (Exhaust Gas Recirculation) connecting pipe assembly |
-
2014
- 2014-05-07 CN CN201410190216.9A patent/CN103925120B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201106515Y (en) * | 2007-11-12 | 2008-08-27 | 西门子威迪欧亚太管理（上海）有限公司 | Fuel oil guideway assembly |
| WO2012177687A2 (en) * | 2011-06-21 | 2012-12-27 | Caterpillar Inc. | Egr flow control for large engines |
| JP2013053558A (en) * | 2011-09-05 | 2013-03-21 | Hino Motors Ltd | Anti-freezing device for egr device |
| CN202532096U (en) * | 2012-03-23 | 2012-11-14 | 十堰巨迪金属管业有限公司 | Connecting pipe for exhaust gas recirculation (EGR) system |
| CN203296965U (en) * | 2013-04-27 | 2013-11-20 | 东风朝阳朝柴动力有限公司 | Exhaust gas recirculation cooler support fixedly arranged on engine flywheel shell |
| CN203906126U (en) * | 2014-05-07 | 2014-10-29 | 广西玉柴机器股份有限公司 | Engine EGR (Exhaust Gas Recirculation) connecting pipe assembly |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106198028A (en) * | 2016-08-29 | 2016-12-07 | 北京航天三发高科技有限公司 | A kind of block testing stand exhaust apparatus |
| CN106198028B (en) * | 2016-08-29 | 2018-08-03 | 北京航天三发高科技有限公司 | A kind of block testing stand exhaust apparatus |
| CN108119713A (en) * | 2017-12-19 | 2018-06-05 | 浙江方圆机电设备制造有限公司 | A kind of combined type flexible Pressuretight sylphon bellows |
| CN111648883A (en) * | 2020-07-03 | 2020-09-11 | 安徽华菱汽车有限公司 | Air inlet pipeline system vibration/noise reduction device |
| CN111648883B (en) * | 2020-07-03 | 2024-06-25 | 安徽华菱汽车有限公司 | Shock-absorbing and noise-reducing device for air inlet pipeline system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103925120B (en) | 2016-04-27 |
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