CN102294166B - Integrated air drying cylinder, compressed air braking system and vehicle - Google Patents
Integrated air drying cylinder, compressed air braking system and vehicle Download PDFInfo
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- CN102294166B CN102294166B CN201110191260.8A CN201110191260A CN102294166B CN 102294166 B CN102294166 B CN 102294166B CN 201110191260 A CN201110191260 A CN 201110191260A CN 102294166 B CN102294166 B CN 102294166B
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- filter
- air drying
- integrated air
- cylindrical container
- moisture
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- 238000007605 air drying Methods 0.000 title claims abstract description 47
- 239000004519 grease Substances 0.000 claims abstract description 36
- 238000001035 drying Methods 0.000 claims abstract description 18
- 239000000356 contaminant Substances 0.000 claims description 37
- 238000001179 sorption measurement Methods 0.000 claims description 16
- 239000002245 particle Substances 0.000 claims description 13
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 4
- 241001466460 Alveolata Species 0.000 claims description 3
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 claims description 3
- 239000012535 impurity Substances 0.000 abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 9
- 239000010721 machine oil Substances 0.000 description 4
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 241000446313 Lamella Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Valves And Accessory Devices For Braking Systems (AREA)
- Drying Of Gases (AREA)
- Compressor (AREA)
Abstract
The invention relates to an integrated air drying cylinder, a compressed air braking system and a vehicle. The integrated air drying cylinder comprises a drying cylinder pedestal (1), a moisture filter (5), an inlet (6), an outlet (7), an impurity filter (2), a cylindrical container (3) and a grease filter (4). Compressed air output from a compressor enters the annular impurity filter (2) by the inlet, and the impurity filtered air then enters a spiral channel (8). At that time, as the compressed air flows for a long time in ring ways, the temperature falls, and part of cooled grease and moisture drop to the edge of the impurity filter. Then the cooled air enters the grease filter (4) and the moisture filter (5) for removing oil and water. And finally, dried clean air is output through the outlet (7) to the vehicle braking system.
Description
Technical field
The present invention relates to the compressed air drying filter plant in automobile air brake system, especially a kind of integrated air drying, and adopt the vehicle compressed air brake system of this integrated air drying, also relate to the vehicle adopting this pneumatic braking system.
Background technology
Current oversize vehicle, as the vehicle such as truck, motorbus uses pneumatic braking system mostly, in vehicle air brakes, gas needed for braking is provided by air compressor usually, air after pressurization is input to air accumulator by air compressor, during automobile brake, driver tramples brake pedal, above-mentioned compressed air just from air accumulator by pipeline connection to wheel drag.Because compressor constantly carries out mechanical reciprocation, the Compressed Gas temperature that it provides higher and in air containing a large amount of machine oil and because of fricting movement produce impurity, for this reason, traditional Pneumatic braking system is provided with longer copper pipe for cooled compressed gas at air compressor delivery outlet usually, but because Compressed Gas can produce condensed water by High-temperature cooling to chilling process, and condensed water and machine oil, hardware corrosion in brakes can be caused again after impurity mixing, rubber seal chaps, lubricating grease decomposes, pipeline blockage, the problems such as valve element attonity, so traditional Pneumatic braking system has usually set up again in-line filter and oil water separator to process the impurity in brakes at copper pipe rear, machine oil and moisture, but cause again system layout and air valve product to install too numerous and diverse, take up room larger, because shaking easy inefficacy in vehicle operation.
Brakes compressed air drier of the prior art more and more can not meet the demand of present brakes performance, such as application number is the Chinese utility model patent of 200720074978.8, can only filter moisture and oil, structure is too simple, filters insufficient; If application number is the Chinese utility model patent of 03237422.4, feather valve, pressure regulator valve and regeneration gas tank are integrated on drier, although there is certain integrated level, functionally Compressed Gas are dehumidified, can not filter well for machine oil and impurity; And for example publication number is the patent of invention of CN1973960A, can not carry out effective separating and filtering to the impurity being mixed into Compressed Gas.
Summary of the invention
The object of this invention is to provide a kind of integrated air drying, the condensation that vehicle air brakes should be able to be possessed, slagging-off, oil removing, to be integrated except water function, integrated level is high, can use with each drying base engagement of automobile, dismounting is easy to maintenance, improve the System's composition of car brakeing, improve system works reliability.
In order to realize above-mentioned purpose of design, the scheme that the present invention adopts is as follows:
Integrated air drying, comprises drying base, moisture filter, input port, delivery outlet, contaminant filter, cylindrical container, grease filter, shell.
Preferably, described contaminant filter is arranged on the top of described input port, and described contaminant filter is ring-type.Set up contaminant filter at input port place and first the compressed air that compressor inputs can be carried out contaminant filter, also can avoid other filters in impurity effect air drying cylinder simultaneously.
Preferably, the height of described contaminant filter is a bit larger tham the height of described input port, making the gas entering input port fully can carry out contaminant filter, not affecting under compressed-air actuated normal flow, effectively the impurity in air is blocked in outside contaminant filter.
Preferably, described cylindrical container is arranged on the top of described contaminant filter, described cylindrical container outer side-lower, be close to contaminant filter place and be provided with helical duct.High-temperature gas through contaminant filter can be extended flow distance through helical duct by this helical duct, can effectively be cooled by high-temperature gas, and cooled amount of grease, moisture are due to own wt simultaneously, will drop to contaminant filter edge along circuit.
Preferably, described cylindrical container is ladder barrel shape, and namely uppermost partial radius is maximum, and the mid portion radius of helical duct described in arranged outside is less, and nethermost partial radius is minimum.Such cylindrical container structure makes all parts configuration of whole integration air drying rationally, overall appearance.
Preferably, ring tubbiness passage is provided with between described cylindrical container upper radius largest portion and shell.Being arranged so that can be imported fast by the compressed air of helical duct of ring tubbiness passage next filters link, realizes circulating fast.
Preferably, described grease filter is arranged on the top in described cylindrical container, and described grease filter is multilayer chip structure.This structure can grease repeatedly, fully again up hill and dale in filtering compressed air.
Preferably, the rounded sheet of each lamellar structure of described grease filter, and identical with the inner radial of described cylindrical container topmost.Can make like this each lamella of grease filter can with cylindrical container in keep away and combine closely, prevent careless omission, fully can remove the grease of Compressed Gas.
Preferably, described moisture filter is arranged in described cylindrical container, and in the below of described grease filter, makes the compressed air through contaminant filter, oil removal treatment and then enter topmost moisture filter.
Preferably, in described moisture filter, fill up adsorption particle, in alveolate texture, fully, effectively can remove the moisture in air.
Preferably, described moisture filter adopts physical adsorption way, and moisture in adsorption particle or fill up between adsorption particle, and can be discharged adsorption particle by moisture absorption by it.During moisture filter is forward flowed by air, by the moisture absorption in air, also by the moisture in moisture filter being blown out external in the process of Air Reverse direction flowing.
Preferably, described equipped at outlet port is provided with screw thread, for connecting the drying base of different model, and is kept apart in described input port and described delivery outlet.
Preferably, above outside described integrated air drying, be provided with hex nut, various common instrument dismounting easy to use integrated air drying of the present invention.
Preferably, between the downside of described hex nut and described cylindrical container top, helical spring is provided with, for regulating air drying cylinder.
Preferably, described drying base comprises left channel and right channel, for fixed air drying in motor vehicle braking system, and air drying cylinder is effectively connected in the fluid circuit of vehicle air brakes.
Preferably, the left end of the left channel of described drying base is communicated with Vehicular system compressor delivery outlet, and upper end is communicated with described input port, ensures that the compressed gas physical efficiency exported from compressor is reliably input to air drying cylinder of the present invention.
Preferably, the right-hand member of right channel of described drying base is communicated with the air accumulator of Vehicular system, upper end is communicated with described delivery outlet, makes reliably to be outputted in vehicle air brake systems by the pure compressed gas physical efficiency of integrated air drying removal impurity of the present invention, grease, moisture.
Present invention also offers a kind of vehicle compressed air brake system, comprise the integrated air drying with at least one feature above-mentioned.
Present invention also offers a kind of vehicle, it is equipped with the above-mentioned pneumatic braking system with air drying cylinder.
Beneficial effect of the present invention is:
Device integrated level is high, the condensation that vehicle air brakes should be able to be possessed, slagging-off, oil removing, is integrated except water function; Strong adaptability, integrated air drying of the present invention can use with the drying base engagement of various vehicle different model; Dismounting is easy to maintenance, is provided with hex nut above outside integrated air drying of the present invention, various common this device of instrument dismounting easy to use; Improve layout and the installation of motor vehicle braking system, improve environment for use and the service life of each parts in motor vehicle braking system, thus greatly improve the safety and stablization of motor vehicle braking system; Reduce production cost, because integrated level is high, a device is equivalent to the multiple function device of original system, decreases brakes parts number, and convenient installation, reduces costs.
Accompanying drawing explanation
Fig. 1 is the internal structure schematic diagram of the preferred embodiment according to integrated air drying of the present invention;
Fig. 2 is the mounting seat schematic diagram of the preferred embodiment according to integrated air drying of the present invention;
Fig. 3 is the schematic diagram of the top hex nut A of a preferred embodiment according to integrated air drying of the present invention.
Reference numeral in figure is: drying base 1, contaminant filter 2, cylindrical container 3, grease filter 4, moisture filter 5, input port 6, delivery outlet 7, helical duct 8, adsorption particle 9, screw thread 10, hex nut A, helical spring 11, left channel 12, right channel 13, ring tubbiness passage 14, shell 15.
Detailed description of the invention
Be described content of the present invention below in conjunction with accompanying drawing, following description is only exemplary and indicative, should not have any restriction to protection scope of the present invention.
The invention provides a kind of integrated air drying, as shown in Figure 1 and Figure 2, comprise drying base 1, moisture filter 5, input port 6, delivery outlet 7, contaminant filter 2, cylindrical container 3, grease filter 4 and shell 15.
Input port 6 is communicated with the compressor of motor vehicle braking system, for inputting the Compressed Gas from air compressor.Delivery outlet 7 for export to the air accumulator of motor vehicle braking system through slagging-off, condensation, oil removing, dewater after the air of dry cleansing.Delivery outlet 7 place is provided with screw thread 10, for connecting the drying base 1 of different model, input port 6 and delivery outlet 7 can also be kept apart, making it separate.
Contaminant filter 2 is arranged on the top of input port 6, and contaminant filter 2 is ring-type, and the height of contaminant filter 2 is a bit larger tham the height of input port 6, makes the gas entering input port 6 fully can carry out contaminant filter.This contaminant filter is never out of shape under high temperature, high pressure, not affecting under compressed-air actuated normal flow, effectively can also be blocked in outside contaminant filter 2 by the impurity in air simultaneously.
Cylindrical container 3 is arranged on the top of contaminant filter 2, cylindrical container 3 outer side-lower, be close to contaminant filter 2 place and be provided with helical duct 8, high-temperature gas from contaminant filter can be extended flow distance through helical duct 8 by this helical duct 8, effectively high-temperature gas can be cooled, cooled amount of grease, moisture are due to own wt simultaneously, will drop to contaminant filter 2 edge along circuit.Cylindrical container 3 is in ladder barrel shape, and namely uppermost partial radius is maximum, and described in arranged outside, the mid portion radius of helical duct 8 is less, and nethermost partial radius is minimum.Be provided with ring tubbiness passage 14 between cylindrical container 3 upper radius largest portion and shell 15, the gas through helical duct 8 can be flowed rapidly in cylindrical container 3.
Grease filter 4 is arranged on the top in cylindrical container 3, and grease filter 4 is in multilayer chip structure.The rounded sheet of each lamellar structure of grease filter 4, and identical with the inner radial of described cylindrical container 3 topmost, both combine closely, and fully can remove the grease in Compressed Gas.This grease filter 4 has oil suction, oil extraction function, can in air forward flows, fat absorption in air by the grease blowout filter in filter in the flowing of Air Reverse direction, under ensureing grease filter 4 prerequisite in service life, can effectively can be removed again the grease in air again.
Moisture filter 5 is arranged in cylindrical container 3, and in the below of grease filter 4.Fill up adsorption particle 9 in this moisture filter 5, in alveolate texture, moisture filter 5 adopts physical adsorption way, and moisture in adsorption particle 9 or fill up between adsorption particle 9, and can be discharged adsorption particle 9 by moisture absorption by it.The main implementation of moisture filter 5 is in forward being flowed by air, by the moisture absorption in air, again by blowing out external by the moisture in moisture filter 5 in the flowing of Air Reverse direction, under ensureing moisture filter 5 prerequisite in service life, the moisture in air effectively can be removed again.
Hex nut A is provided with above outside integrated air drying of the present invention, as shown in Figure 3, various common instrument dismounting easy to use integrated air drying of the present invention.Helical spring 11 is provided with between the downside of hex nut A and described cylindrical container 3 top.
Drying base 1 comprises left channel 12 and right channel 13, and wherein, the left end of left channel 12 is communicated with Vehicular system compressor delivery outlet, and upper end is communicated with described input port 6; The right-hand member of right channel 13 is communicated with the air accumulator of Vehicular system, and upper end is communicated with described delivery outlet 7.
Present invention also offers a kind of vehicle compressed air brake system, comprise the integrated air drying with at least one feature above-mentioned.
Present invention also offers a kind of vehicle, it is equipped with described above with the pneumatic braking system of air drying cylinder.
The course of work:
A. forward (normal filtration) is flowed:
Input port 6 connects source of the gas air compressor, after vehicle start-up or normal to exercise, the compressed air exported from air compressor machine enters contaminant filter 2 by input port 6, because impurity is blocked in outside it by contaminant filter 2, air now after contaminant filter enters helical duct 8 again, at this moment because compressed air is longer around circuit flowing time, temperature declines, cooled amount of grease, moisture is due to own wt, contaminant filter edge will be dropped to along circuit, now enter grease filter 4 again through cooled air, moisture filter 5 carries out oil removing and dewaters, the air of dry cleansing is exported to motor vehicle braking system finally by delivery outlet 7.
B. reverse flow (device regeneration):
After integrated air drying of the present invention connects with drying base, delivery outlet 7 can also be utilized to input gas, make moisture filter 5, grease filter 4, the moisture in contaminant filter 2 edge and outside, grease, impurity by forward gas flow paths, enter air in the other direction.
Those skilled in the art are not difficult to find out, each part forming integrated air drying of the present invention is all prior art, in order to make description simple and clear, here each details in these known parts is not given to the description of all matters, big and small, because this is unnecessary to those skilled in the art.Those skilled in the art are not difficult to find out equally, and these prior aries combined and form entirety of the present invention, this is but the crystallization that inventor studies for many years and tests, and is creative work outstanding achievement.Embodiment recited above is only be described the preferred embodiment of the present invention; not the scope of the invention is limited; do not departing under the present invention designs spiritual prerequisite; the various distortion that the common engineers and technicians in this area make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determine.
Claims (14)
1. an integrated air drying, comprise drying base (1), moisture filter (5), input port (6), delivery outlet (7), shell (15), it is characterized in that, also comprise contaminant filter (2), cylindrical container (3), grease filter (4), input port (6) is communicated with the compressor of motor vehicle braking system, the Compressed Gas from compressor inputted from input port (6) is successively by contaminant filter (2), grease filter (4) and moisture filter (5) carry out three-stage filtration, described contaminant filter (2) is arranged on the top of described input port (6), and described contaminant filter (2) is ring-type, described cylindrical container (3) is arranged on the top of described contaminant filter (2), at the outer side-lower of described cylindrical container (3), be close to contaminant filter (2) place and be provided with helical duct (8) from bottom to top, described cylindrical container (3) is cylindric in inverted steps, namely uppermost partial radius is maximum, the mid portion radius of helical duct described in arranged outside (8) is less, nethermost partial radius is minimum, ring tubbiness passage (14) is provided with between described cylindrical container (3) upper radius largest portion and shell (15), described moisture filter (5) is arranged in described cylindrical container (3), and in the below of described grease filter (4).
2. integrated air drying as claimed in claim 1, it is characterized in that, the height of described contaminant filter (2) is a bit larger tham the height of described input port (6).
3. integrated air drying as claimed in claim 1, it is characterized in that, described grease filter (4) is arranged on the top in described cylindrical container (3), and described grease filter (4) is in multilayer chip structure.
4. integrated air drying as claimed in claim 3, is characterized in that, the rounded sheet of each lamellar structure of described grease filter (4), and identical with the inner radial of described cylindrical container (3) topmost.
5. integrated air drying as claimed in claim 1, is characterized in that, fill up adsorption particle (9), in alveolate texture in described moisture filter (5).
6. integrated air drying as claimed in claim 5, it is characterized in that, described moisture filter (5) adopts physical adsorption way, moisture in adsorption particle (9) or fill up between adsorption particle (9), and can be discharged adsorption particle (9) by moisture absorption by it.
7. integrated air drying as claimed in claim 1, it is characterized in that, described delivery outlet (7) place is provided with screw thread (10), for connecting the drying base (1) of different model, and described input port (6) and described delivery outlet (7) are kept apart.
8. integrated air drying as claimed in claim 1, is characterized in that, be provided with hex nut (A) above outside described integrated air drying.
9. integrated air drying as claimed in claim 8, is characterized in that, be provided with helical spring (11) between the downside of described hex nut (A) and described cylindrical container (3) top.
10. integrated air drying as claimed in claim 7, it is characterized in that, described drying base (1) comprises left channel (12) and right channel (13).
11. integrated air dryings as claimed in claim 10, it is characterized in that, the left end of the left channel (12) of described drying base (1) is communicated with Vehicular system compressor delivery outlet, and upper end is communicated with described input port (6).
12. integrated air dryings as claimed in claim 10, it is characterized in that, the right-hand member of the right channel (13) of described drying base (1) is communicated with the air accumulator of Vehicular system, and upper end is communicated with described delivery outlet (7).
13. 1 kinds of vehicle compressed air brake systems, is characterized in that, it adopts the integrated air drying of in claim 1 to 12 at least one.
14. vehicles, is characterized in that, are equipped with as claimed in claim 13 with the pneumatic braking system of air drying cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110191260.8A CN102294166B (en) | 2011-07-08 | 2011-07-08 | Integrated air drying cylinder, compressed air braking system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110191260.8A CN102294166B (en) | 2011-07-08 | 2011-07-08 | Integrated air drying cylinder, compressed air braking system and vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102294166A CN102294166A (en) | 2011-12-28 |
| CN102294166B true CN102294166B (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110191260.8A Active CN102294166B (en) | 2011-07-08 | 2011-07-08 | Integrated air drying cylinder, compressed air braking system and vehicle |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108499331A (en) * | 2018-05-23 | 2018-09-07 | 北京光宇之勋科技有限公司 | A kind of automobile air drier |
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|---|---|---|---|---|
| US20060123743A1 (en) * | 2004-12-10 | 2006-06-15 | Haldex Brake Products Gmbh | Cartridge for cleaning compressed air in compressed air supply systems of motor vehicles |
| US20070144350A1 (en) * | 2003-05-19 | 2007-06-28 | Wabco Automotive Uk Limited | Air dryer cartridge |
| CN101092952A (en) * | 2007-07-05 | 2007-12-26 | 张文建 | Compressed air cleaner in use for vehicle |
| US20080289505A1 (en) * | 2005-05-16 | 2008-11-27 | Wabco Automotive Uk Limited | Air Dryer Cartridge |
| US20090038476A1 (en) * | 2004-11-04 | 2009-02-12 | Wabco Automotive Uk Limited | Air Dryer |
| CN201334006Y (en) * | 2008-12-31 | 2009-10-28 | 浙江万安科技股份有限公司 | Automobile drying tank assembly |
| CN101632893A (en) * | 2009-08-12 | 2010-01-27 | 瑞立集团瑞安汽车零部件有限公司 | Multifunctional air drying cylinder |
| CN201880469U (en) * | 2010-06-22 | 2011-06-29 | 陈晓波 | Air dryer |
| CN202129015U (en) * | 2011-07-08 | 2012-02-01 | 瑞立集团瑞安汽车零部件有限公司 | Integrated air drying cylinder, compressed air brake system and vehicle |
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2011
- 2011-07-08 CN CN201110191260.8A patent/CN102294166B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070144350A1 (en) * | 2003-05-19 | 2007-06-28 | Wabco Automotive Uk Limited | Air dryer cartridge |
| US20090038476A1 (en) * | 2004-11-04 | 2009-02-12 | Wabco Automotive Uk Limited | Air Dryer |
| US20060123743A1 (en) * | 2004-12-10 | 2006-06-15 | Haldex Brake Products Gmbh | Cartridge for cleaning compressed air in compressed air supply systems of motor vehicles |
| US20080289505A1 (en) * | 2005-05-16 | 2008-11-27 | Wabco Automotive Uk Limited | Air Dryer Cartridge |
| CN101092952A (en) * | 2007-07-05 | 2007-12-26 | 张文建 | Compressed air cleaner in use for vehicle |
| CN201334006Y (en) * | 2008-12-31 | 2009-10-28 | 浙江万安科技股份有限公司 | Automobile drying tank assembly |
| CN101632893A (en) * | 2009-08-12 | 2010-01-27 | 瑞立集团瑞安汽车零部件有限公司 | Multifunctional air drying cylinder |
| CN201880469U (en) * | 2010-06-22 | 2011-06-29 | 陈晓波 | Air dryer |
| CN202129015U (en) * | 2011-07-08 | 2012-02-01 | 瑞立集团瑞安汽车零部件有限公司 | Integrated air drying cylinder, compressed air brake system and vehicle |
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| Publication number | Publication date |
|---|---|
| CN102294166A (en) | 2011-12-28 |
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| SE01 | Entry into force of request for substantive examination | ||
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Denomination of invention: Integrated air drying cylinder, compressed air braking system and vehicles Granted publication date: 20150708 Pledgee: China Minsheng Banking Corp Wenzhou branch Pledgor: RUILI GROUP RUIAN AUTO PARTS Co.,Ltd. Registration number: Y2024980012628 |