CN214441459U - Compressed air blowing-off device for high-pressure gasoline direct-injection fuel injector - Google Patents
Compressed air blowing-off device for high-pressure gasoline direct-injection fuel injector Download PDFInfo
- Publication number
- CN214441459U CN214441459U CN202023191870.1U CN202023191870U CN214441459U CN 214441459 U CN214441459 U CN 214441459U CN 202023191870 U CN202023191870 U CN 202023191870U CN 214441459 U CN214441459 U CN 214441459U
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- Prior art keywords
- compressed air
- mist separator
- gasoline direct
- pressure
- pressure gasoline
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- 238000002347 injection Methods 0.000 title claims description 21
- 239000007924 injection Substances 0.000 title claims description 21
- 239000000446 fuel Substances 0.000 title claims description 6
- 239000003595 mist Substances 0.000 claims abstract description 45
- 238000007664 blowing Methods 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 10
- 229920005597 polymer membrane Polymers 0.000 claims description 9
- 229920000642 polymer Polymers 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 22
- 239000003921 oil Substances 0.000 description 22
- 229910052757 nitrogen Inorganic materials 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 6
- 239000000295 fuel oil Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to a compressed air blows clean device for high pressure gasoline directly spouts sprayer, the device's output and the high pressure gasoline directly spout the sprayer wait to blow clean the part and link to each other, blow clean device and include the compressed air supply, air cleaner, oil mist separator, first little fog separator, the desicator, relief pressure valve and the little fog separator of second, the compressed air supply, air cleaner, oil mist separator, first little fog separator, the desicator, relief pressure valve and the little fog separator of second link to each other in proper order, the output of the little fog separator of second links to each other with waiting to blow clean the part. Compared with the prior art, the utility model has the advantages of blow clean effectual, the security is high, the small investment, take effect soon etc.
Description
Technical Field
The utility model belongs to the technical field of high pressure gasoline direct injection fuel injector air blows clean technique and specifically relates to a compressed air blows clean device that is used for high pressure gasoline direct injection fuel injector.
Background
The high-pressure gasoline direct-injection oil injector is a core component in an automobile engine, and the working principle of the high-pressure gasoline direct-injection oil injector is similar to that of a one-way valve, and high-pressure fuel oil is injected into an engine cylinder body. The high-pressure oil injector can atomize the fuel oil into fuel oil particles with the diameter reaching the micron order, ensure the sufficient and uniform combustion of the fuel oil, provide powerful power for an engine and achieve the purposes of energy conservation and emission reduction. The excellent performance of the high-pressure oil sprayer can be realized only by precise assembly and matching of each part, each manufacturing link has very strict requirements, and if particulate matters enter the oil sprayer in the assembly process or the oil sprayer is deformed by external force impact, the oil sprayer cannot be normally opened or closed or the oil spraying performance does not reach the standard, and finally engine faults are caused.
In the manufacturing process of the oil sprayer, a process of completely blowing the interior of a part by nitrogen at a station and then installing a valve seat is carried out, but the currently used blowing technology adopts the process of directly blowing by using nitrogen, the structure of the technology is shown in figure 1, wherein A is a switch of a nitrogen source, B is a part to be completely blown, and the nitrogen source is directly input into the part to be completely blown to completely blow the interior of the part. The blowing-off technology has large consumption of nitrogen, and the nitrogen cost consumed in the blowing-off process is about 960000 yuan per year, so that the consumed cost is huge, and unnecessary waste is caused. And because of the problem of nitrogen supply, the large-scale shutdown of equipment is often caused by insufficient nitrogen supply, and the production efficiency is influenced.
Disclosure of Invention
The utility model aims at overcoming the defects existing in the prior art and providing a compressed air blowing device for a high-pressure gasoline direct injection fuel injector, which has good blowing effect, high safety, low investment and quick effect.
The purpose of the utility model can be realized through the following technical scheme:
a compressed air blowing-cleaning device for a high-pressure gasoline direct-injection oil injector is characterized in that the output end of the compressed air blowing-cleaning device is connected with a part to be blown-cleaned of the high-pressure gasoline direct-injection oil injector, and the blowing-cleaning device comprises a compressed air source, an air filter, an oil mist separator, a first micro-mist separator, a dryer, a pressure reducing valve and a second micro-mist separator; the compressed air source, the air filter, the oil mist separator, the first micro mist separator, the dryer, the pressure reducing valve and the second micro mist separator are connected in sequence; and the output end of the second micro-mist separator is connected with a part to be blown clean.
Preferably, the air filter is an air filter with the filtering precision of 5 u.
Preferably, the oil mist separator is an oil mist separator with the filtering precision of 0.03 u.
Preferably, the first micro-mist separator is a micro-mist separator with a filtering precision of 0.01 u.
Preferably, the dryer is a polymer membrane dryer.
More preferably, the number of the polymer membrane dryers is two, and the two polymer membrane dryers are connected in parallel.
More preferably, the polymer membrane dryer is a polymer membrane dryer with a reference dew point of-40 ℃.
Preferably, the blow-down device is provided with a switch valve on a pipeline between the dryer and the pressure reducing valve.
Preferably, the pressure reducing valve is a 70kPa pressure reducing valve.
Preferably, the second micro-mist separator is a micro-mist separator with a filtering precision of 0.01 u.
Compared with the prior art, the utility model discloses following beneficial effect has:
firstly, the blowing-off effect is good: the compressed air blowing device in the utility model processes the oil mist, micro mist and moisture of the compressed air and then operates the parts to be blown clean, thereby meeting the air purity requirement required by the parts to be blown clean; finally, compressed gas with the pressure of 70kPa is used for carrying out blowing operation on the parts to be blown clean, so that the blowing effect is guaranteed.
Secondly, the safety is high: the utility model provides a compressed air blows clean device is equipped with the relief pressure valve, with compressed gas's pressure drop to 70kPa, can guarantee to blow clean required pressure, can also guarantee simultaneously that high-pressure gas can not treat to blow clean the part and cause the damage.
Thirdly, the investment is less, the effect is fast: the utility model provides a compressed air blows clean device's investment is less, can reduce the running cost of enterprise, compares and uses nitrogen gas required 960000 yuan's nitrogen gas expense every year when blowing clean, the utility model provides a compressed air blows clean device can save 700000 yuan every year, reduces the investment of directly spouting the sprayer blow-clean technique to high-pressure gasoline greatly.
Drawings
FIG. 1 is a schematic diagram of a nitrogen purging technique used in the prior art;
fig. 2 is a schematic structural view of the middle blowing device of the present invention.
The reference numbers in the figures indicate:
A. b, switching on a nitrogen source, and blowing off parts to be cleaned;
1. the device comprises a compressed air source, 2, an air filter, 3, an oil mist separator, 4, a first micro mist separator, 5, a dryer, 6, a switch valve, 7, a pressure reducing valve, 8, a second micro mist separator and 9 and parts to be blown clean.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.
A compressed air blowing-off device for a high-pressure gasoline direct-injection injector is structurally shown in figure 2, the output end of the compressed air blowing-off device is connected with a part 9 to be blown off of the high-pressure gasoline direct-injection injector, and the blowing-off device comprises: the device comprises a compressed air source 1, an air filter 2, an oil mist separator 3, a first micro mist separator 4, a dryer 5, a pressure reducing valve 7 and a second micro mist separator 8, wherein the compressed air source 1, the air filter 2, the oil mist separator 3, the first micro mist separator 4, the dryer 5, the pressure reducing valve 7 and the second micro mist separator 8 are sequentially connected, and the output end of the second micro mist separator 8 is connected with a part 9 to be blown clean.
Example 1
The air filter 2 is an air filter having a filtering accuracy of 5 u.
Example 2
The oil mist separator 3 is an oil mist separator having a filtration accuracy of 0.03 u.
Example 3
The first fine mist separator 4 and the second fine mist separator 8 are each a fine mist separator having a filtration accuracy of 0.01 u.
Example 4
The dryer 5 is a high-molecular diaphragm dryer, the number of the high-molecular diaphragm dryers is two, and the two high-molecular diaphragm dryers are connected in parallel. The polymer membrane dryer is a polymer membrane dryer with a standard dew point of-40 ℃.
Example 5
The blow-down device is provided with a switch valve 6 on a pipeline between the dryer 5 and the pressure reducing valve 7.
Example 6
The pressure reducing valve 7 is a 70kPa pressure reducing valve and is used for preventing high-pressure gas from damaging the internal structure of the part to be blown clean.
The compressed air purity standards specified by ISO are shown in table 1.
TABLE 1 compressed air purity Standard
The blow-off device in this embodiment is before treating the blow-off part and blow off, and compressed gas's solid particle standard can reach level 1, and water pressure dew point standard can reach level 2, and total oil content can reach level 1, and gas pressure is 70kPa, satisfies the high-pressure gasoline and directly spouts the blow-off requirement of sprayer part to can also guarantee that the part can not damage because of gaseous high pressure.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A compressed air blowing device for a high-pressure gasoline direct-injection fuel injector is characterized in that the blowing device comprises a compressed air source (1), an air filter (2), an oil mist separator (3), a first micro mist separator (4), a dryer (5), a pressure reducing valve (7) and a second micro mist separator (8); the compressed air source (1), the air filter (2), the oil mist separator (3), the first micro mist separator (4), the dryer (5), the pressure reducing valve (7) and the second micro mist separator (8) are connected in sequence; the output end of the second micro-mist separator (8) is connected with a part (9) to be blown clean.
2. A compressed air blowing-off device for a high-pressure gasoline direct injection injector according to claim 1, characterized in that said air filter (2) is an air filter with a filtering accuracy of 5 u.
3. A compressed air blow-off device for a high-pressure gasoline direct injection injector according to claim 1, characterized in that said oil mist separator (3) is an oil mist separator having a filtering accuracy of 0.03 u.
4. A compressed air blowing-off device for a high pressure gasoline direct injection injector according to claim 1, characterized in that said first micro mist separator (4) is a micro mist separator with a filter accuracy of 0.01 u.
5. The compressed air blowing-off device for the high-pressure gasoline direct injection injector according to claim 1, characterized in that the dryer (5) is a polymeric diaphragm dryer.
6. The compressed air blowing-off device for the high-pressure gasoline direct injection injector according to claim 5, characterized in that the number of the high polymer diaphragm dryers is two, and the two high polymer diaphragm dryers are connected in parallel.
7. The compressed air blowing-off device for the high-pressure gasoline direct injection injector according to claim 5, characterized in that the polymer membrane dryer is a polymer membrane dryer with a reference dew point of-40 ℃.
8. A compressed air blowing-off device for a high-pressure gasoline direct injection injector according to claim 1, characterized in that the blowing-off device is provided with a switching valve (6) on a pipeline between the dryer (5) and the pressure reducing valve (7).
9. A compressed air blow-off device for a high pressure gasoline direct injection injector according to claim 1, characterized in that said pressure reducing valve (7) is a 70kPa pressure reducing valve.
10. A compressed air blowing-off device for a high pressure gasoline direct injection injector according to claim 1, characterized in that said second fine mist separator (8) is a fine mist separator with a filtering accuracy of 0.01 u.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023191870.1U CN214441459U (en) | 2020-12-27 | 2020-12-27 | Compressed air blowing-off device for high-pressure gasoline direct-injection fuel injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023191870.1U CN214441459U (en) | 2020-12-27 | 2020-12-27 | Compressed air blowing-off device for high-pressure gasoline direct-injection fuel injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214441459U true CN214441459U (en) | 2021-10-22 |
Family
ID=78193960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023191870.1U Active CN214441459U (en) | 2020-12-27 | 2020-12-27 | Compressed air blowing-off device for high-pressure gasoline direct-injection fuel injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214441459U (en) |
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2020
- 2020-12-27 CN CN202023191870.1U patent/CN214441459U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200131 No. 150 Xiya Road, Pudong New Area (Shanghai) pilot Free Trade Zone, Shanghai Patentee after: Bog Warner (Shanghai) Automotive Fuel System Co.,Ltd. Address before: 200131 No. 150 Xiya Road, Pudong New Area (Shanghai) pilot Free Trade Zone, Shanghai Patentee before: DELPHI SHANGHAI DYNAMICS AND PROPULSION SYSTEMS Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200131 No. 150 Xiya Road, Pudong New Area (Shanghai) pilot Free Trade Zone, Shanghai Patentee after: Fenia Delphi Automotive Systems (Shanghai) Co.,Ltd. Address before: 200131 No. 150 Xiya Road, Pudong New Area (Shanghai) pilot Free Trade Zone, Shanghai Patentee before: Bog Warner (Shanghai) Automotive Fuel System Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |