CN203906128U - Engine exhaust gas recirculation pipe and engine exhaust gas recirculation assembly - Google Patents
Engine exhaust gas recirculation pipe and engine exhaust gas recirculation assembly Download PDFInfo
- Publication number
- CN203906128U CN203906128U CN201420306498.XU CN201420306498U CN203906128U CN 203906128 U CN203906128 U CN 203906128U CN 201420306498 U CN201420306498 U CN 201420306498U CN 203906128 U CN203906128 U CN 203906128U
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- Prior art keywords
- pipe
- exhaust gas
- flange
- engine exhaust
- section
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- Expired - Fee Related
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- 238000009434 installation Methods 0.000 abstract description 7
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 26
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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)
- Exhaust Silencers (AREA)
Abstract
The utility model provides an engine exhaust gas recirculation pipe and an engine exhaust gas recirculation assembly. The engine exhaust gas recirculation pipe comprises a corrugated pipe, a first pipe, a second pipe, a first flange and a second flange, wherein the first flange is fixedly connected to the first pipe, and the second flange is fixedly connected to the second flange. Two first installation holes are formed in the first flange. The second flange comprises a horizontal section, a vertical section and a harness section, wherein the vertical section is fixedly connected with the horizontal section, and the harness section is fixedly connected with the vertical section. Two EGR valve installation holes and a pipe fixing hole are formed in the horizontal section. A kidney-shaped second installation hole is formed in the vertical section. A harness passing hole is formed in the harness section. According to the engine exhaust gas recirculation pipe, the engine exhaust gas recirculation pipe is fixed into an engine through the second installation hole in the vertical section, a harness is restrained and located through the harness passing hole formed in the harness section, and therefore the situation that because the support is arranged on the corrugated pipe, interference between the support and the peripheral harness is caused is avoided; the second flange is assembled with an EGR valve, the horizontal section can also support the EGR valve, an extra support used for fixing the EGR valve is not needed, and therefore installation is convenient.
Description
Technical field
The utility model relates to automobile dynamic system, particularly a kind of engine exhaust gas reclrculation pipe and assembly.
Background technique
Along with the aggravation of pollution of atmosphere and the continuous consumption of the energy, there has been stricter requirement in country to the oil consumption of automobile and discharge.EGR (EGR) technology is a kind of technological means of effective reduction motor vehicle emission in recent years, by engine exhaust gas reclrculation pipe and the EGR valve of controlling exhausted air quantity, a part of waste gas being introduced to intake manifold fully mixes rear reallocation with fresh air and burns to each cylinder, reduce velocity of combustion and reduce combustion temperature, and then reduced the discharge of oxynitrides, and reduced to a certain extent the oil consumption of motor, improved the fuel economy of motor.
As shown in Figure 1, existing engine exhaust gas reclrculation pipe by bellows 1 ', with bellows 1 ' the steel pipe 2 that is connected of two ends ', and be arranged at steel pipe 2 ' free-ended flange 3 ' composition, bellows 1 ' on be also provided with for engine exhaust gas reclrculation pipe is fixed on in-engine support 4 '.But existing engine exhaust gas reclrculation pipe is when mounted by support 4 ' be fixed on engine cylinder to cover, the wire harness interference of support 4 ' easily and periphery, comparatively inconvenient during installation.
Model utility content
The technical problems to be solved in the utility model be to provide a kind of not with engine exhaust gas reclrculation pipe and the assembly of periphery wire harness interference.
For solving the problems of the technologies described above, the engine exhaust gas reclrculation pipe that the utility model provides comprises bellows, manage with the first pipe and second that the two ends of described bellows are connected, and the first flange being connected with the free end of described the first pipe, the second flange being connected with the free end of described the second pipe, two the first mounting holes are set on described the first flange, described the second flange comprises horizontal segment, be connected with described horizontal segment vertical section and with the described vertical section wire harness section being connected, on described horizontal segment, be provided with two circular EGR valve mounting holes and a pipe fixed hole, on described vertical section, be provided with the second mounting hole of a kidney-shaped, in described wire harness section, be provided with the wire harness passing-hole of a kidney-shaped.
Preferably, the length of described the first pipe is greater than the length of described the second pipe.
Preferably, the free end of described the second pipe is lower than the end face 1.5mm～2mm of described pipe fixed hole.
Preferably, the thickness of described horizontal segment, vertical section and wire harness section reduces successively, and the thickness difference of adjacent segment is less than 1.5mm.
Preferably, the ripple quantity of described bellows is 9～15.
The utility model also provides a kind of engines exhaust gas recirculation assembly, and it comprises above-mentioned engine exhaust gas reclrculation pipe and the EGR valve being connected with described the second flange bolt.
More preferably, on the end face of the contiguous described EGR valve of described the second flange, be provided with rubber sheet gasket.
More preferably, on the end face of the contiguous rubber sheet gasket of described the second flange, be provided with annular slot.
The utility model is fixed on engine exhaust gas reclrculation pipe in motor by the second mounting hole on vertical section, and by the wire harness passing-hole in wire harness section, wire harness is retrained to location, avoided causing and the interference of periphery wire harness because support is set on bellows, and second flange with EGR valve assembling in, horizontal segment also can carry out support to EGR valve, thereby do not need fixedly EGR valve of extra support, install more convenient.
Accompanying drawing explanation
Fig. 1 is the structural representation of available engine exhaust gas reclrculation pipe;
Fig. 2 is the utility model engine exhaust gas reclrculation pipe embodiment's structural representation;
Fig. 3 is the utility model engine exhaust gas reclrculation pipe embodiment's partial schematic diagram;
Fig. 4 is the second flange embodiment's of the utility model engine exhaust gas reclrculation pipe structural representation;
Fig. 5 is the utility model engines exhaust gas recirculation assembly embodiment's structural representation.
In figure, indicate as follows:
Bellows-1 ', steel pipe-2 ', flange-3 ', support-4 ', engine exhaust gas reclrculation pipe-1, bellows-11, first pipe the-12, second pipe-13, the first flange-14, the first mounting hole-141, the second flange-15, horizontal segment-151, EGR valve mounting hole-1511, pipe fixed hole-1512, vertical section-152, the second mounting hole-1521, wire harness section-153, wire harness passing-hole-1531, EGR valve-2, bolt-3.
Embodiment
For above-mentioned purpose, the feature and advantage of model utility can be become apparent more, below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
A lot of details have been set forth in the following description so that fully understand the utility model, but the utility model can also adopt other to be different from alternate manner described here and implement, those skilled in the art can do similar popularization without prejudice to the utility model intension in the situation that, so the utility model is not subject to the restriction of following public specific embodiment.
Described in Fig. 2 to Fig. 4, the engine exhaust gas reclrculation pipe 1 that the utility model provides, comprise bellows 11, first pipe the 12 and second pipe 13 being connected with the two ends of described bellows 11, and the first flange 14 being connected with described the first pipe free end of 12, the second flange 15 being connected with described the second pipe free end of 13, two the first mounting holes 141 are set on described the first flange 14, the first flange 14 assembles with suction port by the first mounting hole 141, described the second flange 15 comprises horizontal segment 151, be connected with described horizontal segment 151 vertical section 152 and with the described vertical section 152 wire harness section 153 being connected, horizontal segment 151 is with vertically section 152 is perpendicular, wire harness section 153 can with vertical section 152 be arranged in parallel, or by arrangement space demand towards setting, on described horizontal segment 151, be provided with two circular EGR valve mounting holes 1511 and a pipe fixed hole 1512, EGR valve can be installed by EGR valve mounting hole 1511, the second pipe 13 is by horizontal segment 151 assemblings of pipe fixed hole 1512 and the second flange 15, on described vertical section 152, be provided with the second mounting hole 1521 of a kidney-shaped, engine exhaust gas reclrculation pipe 1 is fixed in motor by the second mounting hole 1521, the second mounting hole 1521 of kidney-shaped is conducive to conveniently choose the mounting point of engine exhaust gas reclrculation pipe 1, avoid bellows 11 to shorten because excessive distortion causes working life, in described wire harness section 153, be provided with the wire harness passing-hole 1531 of a kidney-shaped, wire harness can be by wiring harness fastener and wire harness passing-hole 1531 coordinate to retrain location.Above-mentioned being connected can be realized by welding or the one-body molded or mode such as be threaded, and those skilled in the art can select suitable mode as required.
The utility model is fixed on engine exhaust gas reclrculation pipe 1 in motor by the second mounting hole 1521 on vertical section 152, and by 1531 pairs of wire harness constraint location of the wire harness passing-hole in wire harness section 153, avoided causing and the interference of periphery wire harness because support is set on bellows 11, and second flange 15 with EGR valve assembling in, its horizontal segment 151 also can carry out support to EGR valve, thereby do not need fixedly EGR valve of extra support, install more convenient.
For the convenient fixed position of arranging the second flange 15, the length of described the first pipe 12 is greater than the length of described the second pipe 13, like this, the second flange 15 being connected with the second pipe 13 because of from bellows 11 compared with close to there is larger activity space, can make the installation of engine exhaust gas reclrculation pipe 1 more convenient.
For the tightness that guarantees that the second flange 15 is installed, the free end of described the second pipe 13 is lower than the end face 1.5mm～2mm of described pipe fixed hole 1512, be that d in Fig. 3 is 1.5mm～2mm, EGR valve is when installing with the second flange 15, the suction port of EGR valve can partly enter in pipe fixed hole 1512, avoids the urgent not in place or gas leakage that bolt tension causes of when installing bolt.
For loss of weight and save cost, described horizontal segment 151, vertically the thickness of section 152 and wire harness section 153 reduces successively, and the thickness difference of adjacent segment is less than 1.5mm, and a in Fig. 4 and the difference between b are less than 1.5mm, and the difference between b and c is less than 1.5mm.In the concrete process of implementing, also can do thickening in the joint of horizontal segment 151 and vertical section 152 and process, so that the second flange 15 is more durable.
For production control cost, the ripple quantity of described bellows 11 is 9～15.
As shown in Figure 5, the utility model also provides a kind of engines exhaust gas recirculation assembly, it comprise above-mentioned engine exhaust gas reclrculation pipe 1 and with the bolted EGR valve 2 of described the second flange 15, on the end face of the second flange 15, also can be provided with project-welding nut to facilitate the fixing of bolt 3, the second flange 15 can play the effect to EGR valve support, like this, EGR valve 2 no longer needs extra support to fix, thereby larger space is provided to the layout of wire harness.
In order to guarantee the tightness between engine exhaust gas reclrculation pipe 1 and EGR valve, on the end face of described the second flange 15 contiguous described EGR valves 2, be provided with rubber sheet gasket (not shown), shape and the size of rubber sheet gasket arrange according to the actual requirements.Further, in order to prevent that rubber sheet gasket, because extrusion-deformation causes sealing effect bad, is provided with annular slot (not shown) on the end face of described the second flange 15 contiguous rubber sheet gaskets, like this, rubber sheet gasket has the space that can hold deformation, is difficult for because of extruding perk in use.
Although the utility model is described in conjunction with above embodiment, but the utility model is not defined to above-described embodiment, and be only subject to the restriction of claims, those of ordinary skills can easily modify to it and change, but do not leave essence design of the present utility model and scope.
Claims (8)
1. an engine exhaust gas reclrculation pipe, comprise bellows, manage with the first pipe and second that the two ends of described bellows are connected, and the first flange being connected with the free end of described the first pipe, the second flange being connected with the free end of described the second pipe, two the first mounting holes are set on described the first flange, it is characterized in that, described the second flange comprises horizontal segment, be connected with described horizontal segment vertical section and with the described vertical section wire harness section being connected, on described horizontal segment, be provided with two circular EGR valve mounting holes and a pipe fixed hole, on described vertical section, be provided with the second mounting hole of a kidney-shaped, in described wire harness section, be provided with the wire harness passing-hole of a kidney-shaped.
2. engine exhaust gas reclrculation pipe according to claim 1, is characterized in that, the length of described the first pipe is greater than the length of described the second pipe.
3. engine exhaust gas reclrculation pipe according to claim 1, is characterized in that, the free end of described the second pipe is lower than the end face 1.5mm～2mm of described pipe fixed hole.
4. engine exhaust gas reclrculation pipe according to claim 1, is characterized in that, the thickness of described horizontal segment, vertical section and wire harness section reduces successively, and the thickness difference of adjacent segment is less than 1.5mm.
5. engine exhaust gas reclrculation pipe according to claim 1, is characterized in that, the ripple quantity of described bellows is 9～15.
6. an engines exhaust gas recirculation assembly, is characterized in that, comprises the engine exhaust gas reclrculation pipe described in claim 1 to 5 any one and the EGR valve being connected with described the second flange bolt.
7. engines exhaust gas recirculation assembly according to claim 6, is characterized in that, on the end face of the contiguous described EGR valve of described the second flange, is provided with rubber sheet gasket.
8. engines exhaust gas recirculation assembly according to claim 7, is characterized in that, on the end face of the contiguous rubber sheet gasket of described the second flange, is provided with annular slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420306498.XU CN203906128U (en) | 2014-06-10 | 2014-06-10 | Engine exhaust gas recirculation pipe and engine exhaust gas recirculation assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420306498.XU CN203906128U (en) | 2014-06-10 | 2014-06-10 | Engine exhaust gas recirculation pipe and engine exhaust gas recirculation assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906128U true CN203906128U (en) | 2014-10-29 |
Family
ID=51780416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420306498.XU Expired - Fee Related CN203906128U (en) | 2014-06-10 | 2014-06-10 | Engine exhaust gas recirculation pipe and engine exhaust gas recirculation assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906128U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368856A (en) * | 2016-11-30 | 2017-02-01 | 安徽江淮汽车集团股份有限公司 | EGR flow guiding pipe structure |
| CN106401806A (en) * | 2016-11-30 | 2017-02-15 | 安徽江淮汽车集团股份有限公司 | EGR flow guiding pipe structure |
| CN109058617A (en) * | 2018-08-20 | 2018-12-21 | 宁波泰尔汽车部件有限公司 | A kind of engine EGR system high temperature pipeline |
-
2014
- 2014-06-10 CN CN201420306498.XU patent/CN203906128U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368856A (en) * | 2016-11-30 | 2017-02-01 | 安徽江淮汽车集团股份有限公司 | EGR flow guiding pipe structure |
| CN106401806A (en) * | 2016-11-30 | 2017-02-15 | 安徽江淮汽车集团股份有限公司 | EGR flow guiding pipe structure |
| CN106401806B (en) * | 2016-11-30 | 2018-09-25 | 安徽江淮汽车集团股份有限公司 | A kind of EGR draft tube structures |
| CN106368856B (en) * | 2016-11-30 | 2018-09-25 | 安徽江淮汽车集团股份有限公司 | A kind of EGR draft tube structures |
| CN109058617A (en) * | 2018-08-20 | 2018-12-21 | 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20190610 |