CN212251645U - Flat pipe assembly of connection for EGR cooler - Google Patents
Flat pipe assembly of connection for EGR cooler Download PDFInfo
- Publication number
- CN212251645U CN212251645U CN202021871630.3U CN202021871630U CN212251645U CN 212251645 U CN212251645 U CN 212251645U CN 202021871630 U CN202021871630 U CN 202021871630U CN 212251645 U CN212251645 U CN 212251645U
- Authority
- CN
- China
- Prior art keywords
- tube section
- section
- clamping strip
- conical
- flat
- 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.)
- Active
Links
- 239000000725 suspension Substances 0.000 claims abstract description 22
- 239000007789 gas Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 238000004080 punching Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
Images
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The utility model relates to a flat tube assembly for EGR cooler, the flat tube assembly for EGR cooler comprises a left suspension component, a tube body and a right suspension component, the tube body comprises a left circular tube section, a left conical tube section, a flat tube section, a right conical tube section and a right circular tube section which are made of the same circular tube, the left conical tube section and the right conical tube section are flat conical sections, the cross sections of the small ends of the left conical tube section and the right conical tube section are the same as the cross sections of the flat tube section, the cross sections of the large ends of the left conical tube section and the right conical tube section are the same as the cross sections of the left circular tube section and the right circular tube section, so that the small ends of the left conical tube section and the small ends of the right conical tube section are respectively connected with the two ends of the flat tube section, the large end of the left conical tube section is connected with the left circular tube section, the large end of the right conical tube section is connected with the right circular tube section, the flat tube section is obliquely arranged between the, the right suspension assembly is disposed at the small end of the right tapered tube section.
Description
Technical Field
The utility model relates to a EGR cooler technical field, especially a flat tube assembly of connection for EGR cooler.
Background
The diesel engine has the characteristics of low oil consumption and high efficiency, and has good economical efficiency and dynamic property, experiments prove that the diesel engine saves 18 to 28 percent more energy than the gasoline engine, and the diesel engine can save 33 to 40 percent of fuel cost than the gasoline engine because the price of diesel oil is lower than that of gasoline; however, the research on diesel emission technology lags behind the fact that gasoline engines are also untrustworthy, and high NOx emissions have always been a bottleneck that hinders the diesel production of vehicles. In order to solve the problem of emission of nitrogen oxides, a great deal of research work is done by internal combustion engine workers at home and abroad from the perspective of in-house purification, and various control measures are proposed, such as the adoption of an Exhaust Gas Recirculation (EGR) technology; in the prior art, the cooling effect of the connecting flat tube for the EGR cooler is poor, and the EGR cooler is not easy to assemble.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a flat pipe assembly of connection for EGR cooler easy assembly, cooling effect are good.
In order to solve the technical problem, the flat tube connection assembly for the EGR cooler comprises a left suspension component, a tube body and a right suspension component, wherein the tube body comprises a left circular tube section, a left conical tube section, a flat tube section, a right conical tube section and a right circular tube section which are made of the same circular tube, the left conical tube section and the right conical tube section are flat conical sections, the sections of the small ends of the left conical tube section and the right conical tube section are the same as the sections of the flat tube section, the sections of the large ends of the left conical tube section and the right conical tube section are the same as the sections of the left circular tube section and the right circular tube section, so that the small ends of the left conical tube section and the small ends of the right conical tube section are respectively connected with the two ends of the flat tube section, the large end of the left conical tube section is connected with the left circular tube section, the large end of the right conical tube section is connected with the right circular tube section, the flat tube section is obliquely arranged between the left conical tube section and the, the right suspension assembly is arranged at the small end of the right conical pipe section and used for suspending and fixing the pipe body.
Furthermore, a left snap ring is arranged on the left circular pipe section in a protruding mode along the circumferential direction, and a right snap ring is arranged on the right circular pipe section in a protruding mode along the circumferential direction.
Further, the left suspension assembly comprises a first clamping strip, a second clamping strip and a screw rod assembly, the first clamping strip is L-shaped, the middle of the first clamping strip and the middle of the second clamping strip are provided with arc sections, so that the small end of the left conical pipe section is clamped by the closed arc sections after the first clamping strip and the second clamping strip are buckled, and the screw rod assembly comprises a screw rod and a nut and is used for fixing the first clamping strip and the second clamping strip.
Further, the right side hangs the subassembly and includes third card strip, fourth card strip and screw rod subassembly, the third card strip is L shape setting, the middle part of fourth card strip sets up semi-circular joint section to the tip that makes third card strip, fourth card strip lock back right side toper pipeline section carries out the centre gripping by semi-circular joint section and third card strip, and screw rod subassembly is used for fixed third card strip and fourth card strip.
The manufacturing method of the connecting flat tube assembly for the EGR cooler comprises the following steps:
A. according to the size of the pipe body, blanking a steel pipe to obtain the pipe body with length allowance at two ends, and bending the pipe body according to included angles between the left conical pipe section, the right conical pipe section and the flat pipe section;
B. flattening and expanding the bent pipe body to flatten the flat pipe section in the middle of the pipe body, wherein the cross section of the flat pipe section is in a runway shape, the large end of the left conical pipe section and the large end of the right conical pipe section at the two ends of the flat pipe section are expanded, the small end of the left conical pipe section and the small end of the right conical pipe section are flattened to make the left conical pipe section and the right conical pipe section tapered, and the inner diameters of the left circular pipe section outside the left conical pipe section and the right circular pipe section outside the right conical pipe section are expanded.
C. Cutting the flattened and expanded pipe body again to obtain a pipe body meeting the size requirement, and punching the inner sides of the left circular pipe section and the right circular pipe section along the radial direction to form a left clamping ring and a right clamping ring which are arranged in a protruding mode along the circumferential direction at the end portions of the left circular pipe section and the right circular pipe section;
D. cutting, bending and punching the steel plate according to the sizes of the left suspension assembly and the right suspension assembly to obtain corresponding first clamping strips, second clamping strips, third clamping strips and fourth clamping strips, and performing Dacromet coating;
E. the pipe body is cleaned, the small end of the left conical pipe section is fixed through the first clamping strip, the second clamping strip and the screw assembly, and the small end of the right conical pipe section is fixed through the third clamping strip, the fourth clamping strip and the screw assembly, so that final assembly is completed.
The technical effects of the utility model are that: (1) compared with the prior art, the connecting flat tube assembly for the EGR cooler has the advantages that the tube body is arranged into the flat tube section, the left conical tube section, the right conical tube section, the left circular tube section and the right circular tube section, so that the reducing arrangement is formed between the left circular tube section and the left conical tube section, between the left conical tube section and the flat tube section, between the flat tube section and the right conical tube section, between the right conical tube section and the right circular tube section, and gas in the tube body is changed by air pressure when passing through the reducing position, so that the gas conveying is facilitated; the flat pipe section is obliquely arranged, so that the joint of the flat pipe section, the left conical pipe section and the right conical pipe section forms a turn, the flow direction is changed during gas conveying, the gas conveying is facilitated, and the heat exchange efficiency is improved; (2) the arrangement of the left clamping ring and the right clamping ring facilitates the insertion assembly of the connecting flat tube assembly for the EGR cooler; (3) the left suspension component and the right suspension component are arranged, so that the connection flat tube assembly for the EGR cooler can be conveniently suspended and assembled.
Drawings
The invention will be described in further detail with reference to the accompanying drawings:
fig. 1 is a schematic perspective view of a flat tube connection assembly for an EGR cooler according to the present invention;
fig. 2 is a schematic plane structure diagram of the flat connecting tube assembly for the EGR cooler of the present invention;
fig. 3 is a schematic plane structure view of another angle of the flat connecting tube assembly for the EGR cooler of the present invention;
fig. 4 is an axial structural schematic view of the flat connecting tube assembly for the EGR cooler of the present invention;
in the figure: flat pipe section 11, left toper pipe section 12, right toper pipe section 13, left pipe section 14, right pipe section 15, left snap ring 16, right snap ring 17, left side hang subassembly 2, first calorie of strip 21, second card strip 22, screw rod assembly 23, hang hole 24, right side hang subassembly 3, third card strip 31, fourth card strip 32.
Detailed Description
Example 1
As shown in fig. 1 to 4, the flat tube connection assembly for an EGR cooler of this embodiment includes a left suspension component 2, a tube body 1, and a right suspension component 3, wherein the tube body 1 includes a left circular tube section 14, a left tapered tube section 12, a flat tube section 11, a right tapered tube section 13, and a right circular tube section 15, which are made of the same circular tube, the left tapered tube section 12 and the right tapered tube 13 are flat tapered sections, the cross sections of the small ends of the left tapered tube section 12 and the right tapered tube section 14 are the same as the cross section of the flat tube section 11, the cross sections of the large ends of the left tapered tube section 12 and the right tapered tube section 13 are the same as the cross sections of the left circular tube section 14 and the right circular tube section 15, so that the small ends of the left tapered tube section 12 and the small ends of the right tapered tube section 13 are respectively connected to the two ends of the flat tube section 11, the large end of the left tapered tube section 12 is connected to the left circular tube section 14, the large end of the right tapered tube section 13 is, a left snap ring 16 is arranged on the left circular pipe section 14 in a protruding mode along the circumferential direction, and a right snap ring 17 is arranged on the right circular pipe section 15 in a protruding mode along the circumferential direction; the left suspension component 2 comprises a first clamping strip 21, a second clamping strip 22 and a screw rod component 23, the first clamping strip 21 is arranged in an L shape, the middle parts of the first clamping strip 21 and the second clamping strip 22 are provided with arc sections, so that the small end of the left conical pipe section 12 is clamped by the closed arc sections after the first clamping strip 21 and the second clamping strip 22 are buckled, the screw rod component 23 comprises a screw rod and a nut, through holes suitable for the screw rod to pass through are formed in the first clamping strip 21 and the second clamping strip 22, the first clamping strip 21 and the second clamping strip 22 are fixed by matching the screw rod, the through holes and the nut, the right suspension component 3 comprises a third clamping strip 31, a fourth clamping strip 32 and the screw rod component 23, the third clamping strip 31 is arranged in an L shape, the middle part of the fourth clamping strip 32 is provided with a semicircular clamping section, so that the small end of the right conical pipe section 13 is clamped by the semicircular clamping section and the third clamping strip 31 after the third clamping strip 31 and the fourth clamping strip 32 are buckled, the screw assembly 23 comprises a screw and a nut, through holes suitable for the screw to pass through are formed in the third clamping strip 31 and the fourth clamping strip 32, and the third clamping strip 31 and the fourth clamping strip 32 are fixed through the cooperation of the screw, the through holes and the nut; hanging holes 24 are formed at the top ends of the first clamping strip 21 and the third clamping strip 31 and used for installing the left hanging assembly 2 and the right hanging assembly 3.
Example 2
The manufacturing method of the connecting flat tube assembly for the EGR cooler comprises the following steps:
A. according to the size of the pipe body, blanking a steel pipe to obtain the pipe body 1 with length allowance at two ends, and bending the pipe body 1 according to included angles among the left conical pipe section 12, the right conical pipe section 13 and the flat pipe section 11;
B. flattening and expanding the bent pipe body 1 to flatten the flat pipe section 11 in the middle of the pipe body 1, wherein the cross section of the flat pipe section is in a track shape, the large ends of the left conical pipe section 12 and the right conical pipe section 13 at the two ends of the flat pipe section 11 are expanded, the small ends of the left conical pipe section 12 and the right conical pipe section 13 are flattened to form a cone shape for the left conical pipe section 12 and the right conical pipe section 13, and the inner diameters of the left round pipe section 14 outside the left conical pipe section 12 and the right round pipe section 16 outside the right conical pipe section 13 are expanded.
C. Cutting the flattened and expanded pipe body 1 again to obtain the pipe body 1 meeting the size requirement, and punching the inner sides of the left circular pipe section 14 and the right circular pipe section 15 along the radial direction to form a left snap ring 16 and a right snap ring 17 which are arranged in a protruding mode along the circumferential direction at the end parts of the left circular pipe section 14 and the right circular pipe section 15;
D. cutting, bending and punching the steel plate according to the sizes of the left suspension assembly 2 and the right suspension assembly 3 to obtain corresponding first clamping strips 21, second clamping strips 22, third clamping strips 31 and fourth clamping strips 32, and performing Dacromet coating;
E. the pipe body is cleaned, the small end of the left conical pipe section 12 is fixed through the first clamping strip 21, the second clamping strip 22 and the screw assembly 23, and the small end of the right conical pipe section 13 is fixed through the third clamping strip 31, the fourth clamping strip 32 and the screw assembly 23, so that final assembly is completed.
It should be understood that the above examples are only for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And that obvious changes and modifications may be made without departing from the spirit of the invention.
Claims (4)
1. A flat tube connecting assembly for an EGR cooler is characterized by comprising a left suspension component, a tube body and a right suspension component, wherein the tube body comprises a left circular tube section, a left conical tube section, a flat tube section, a right conical tube section and a right circular tube section which are made of the same circular tube, the left conical tube section and the right conical tube section are flat conical sections, the sections of the small ends of the left conical tube section and the right conical tube section are the same as the sections of the flat tube sections, the sections of the large ends of the left conical tube section and the right conical tube section are the same as the sections of the left circular tube section and the right circular tube section, so that the small ends of the left conical tube section and the small ends of the right conical tube section are respectively connected with the two ends of the flat tube sections, the large end of the left conical tube section is connected with the left circular tube section, the large end of the right conical tube section is connected with the right circular tube section, the flat tube section is obliquely arranged between the left conical tube section and the, the right suspension assembly is arranged at the small end of the right conical pipe section and used for suspending and fixing the pipe body.
2. The flat connecting pipe assembly for the EGR cooler according to claim 1, wherein a left snap ring is circumferentially and convexly provided on the left circular pipe section, and a right snap ring is circumferentially and convexly provided on the right circular pipe section.
3. The flat tube assembly for connecting of EGR cooler of claim 2, characterized in that, the left suspension component comprises a first clamping strip, a second clamping strip and a screw component, the first clamping strip is arranged in L shape, and the middle part of the first clamping strip and the second clamping strip is provided with an arc section, so that the small end of the left conical tube section is clamped by the closed arc section after the first clamping strip and the second clamping strip are buckled, and the screw component comprises a screw and a nut for fixing the first clamping strip and the second clamping strip.
4. The flat tube assembly for connecting of EGR cooler according to claim 3, wherein the right suspension component comprises a third clamping strip, a fourth clamping strip and a screw component, the third clamping strip is L-shaped, a semicircular clamping section is arranged in the middle of the fourth clamping strip, so that the small end of the right tapered tube section is clamped by the semicircular clamping section and the third clamping strip after the third clamping strip and the fourth clamping strip are fastened, and the screw component is used for fixing the third clamping strip and the fourth clamping strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021871630.3U CN212251645U (en) | 2020-08-31 | 2020-08-31 | Flat pipe assembly of connection for EGR cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021871630.3U CN212251645U (en) | 2020-08-31 | 2020-08-31 | Flat pipe assembly of connection for EGR cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212251645U true CN212251645U (en) | 2020-12-29 |
Family
ID=73981279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021871630.3U Active CN212251645U (en) | 2020-08-31 | 2020-08-31 | Flat pipe assembly of connection for EGR cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212251645U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911732A (en) * | 2020-08-31 | 2020-11-10 | 常州良旭车辆配件有限公司 | Connecting flat tube assembly for EGR cooler and manufacturing method thereof |
-
2020
- 2020-08-31 CN CN202021871630.3U patent/CN212251645U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911732A (en) * | 2020-08-31 | 2020-11-10 | 常州良旭车辆配件有限公司 | Connecting flat tube assembly for EGR cooler and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212251645U (en) | Flat pipe assembly of connection for EGR cooler | |
| CN111911732A (en) | Connecting flat tube assembly for EGR cooler and manufacturing method thereof | |
| CN101408125B (en) | Exhaust manifold assembly | |
| CN1462333A (en) | Exhaust manifold collecting part connection structure of multi-cylinder internal combustion engine | |
| CN211174397U (en) | Air inlet corrugated pipe of EGR cooler | |
| CN209938255U (en) | High-efficient vehicle air conditioning system | |
| CN204007237U (en) | A kind of cold and hot exchange coaxitron | |
| CN202176392U (en) | Energy-saving carbon-reducing environment-friendly oil economizer | |
| CN217029076U (en) | Structure for sealing high-temperature waste gas by utilizing gas ring | |
| CN210948846U (en) | Shell structure of automobile particle catcher | |
| CN214789613U (en) | Flange pipe capable of avoiding air flow direct blowing welding seam | |
| CN211623536U (en) | Pipeline connecting structure of internal combustion engine automobile power system and air intake and exhaust system | |
| CN202468065U (en) | Connecting pipe of EGR valve | |
| US6687996B2 (en) | Method of making an exhaust gas collector | |
| CN202596850U (en) | Tail gas purification device for internal-combustion engine | |
| CN222184952U (en) | Engine exhaust gas recirculation system and engine assembly | |
| CN220769576U (en) | Exhaust pipe assembly for national six-fold card | |
| CN218564377U (en) | Self-tightening type metal sealing ring with J-shaped cross section | |
| CN218914166U (en) | Stainless steel silencer with corrugated section | |
| CN213450656U (en) | Configuration structure of double-spark plug engine | |
| CN212177259U (en) | Engine tail gas waste heat recovery heat exchanger | |
| CN210599180U (en) | Quick-insertion type connecting pipe for automobile turbocharging | |
| CN206874394U (en) | A kind of cooler for recycled exhaust gas with corrugated spiral heat-exchange tube | |
| CN212870240U (en) | Low-nitrogen-emission gas internal combustion boiler furnace structure | |
| CN216554075U (en) | Automobile exhaust pipe capable of reducing temperature |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |