CN101829477B - Electronic control air drier - Google Patents
Electronic control air drier Download PDFInfo
- Publication number
- CN101829477B CN101829477B CN 201010193182 CN201010193182A CN101829477B CN 101829477 B CN101829477 B CN 101829477B CN 201010193182 CN201010193182 CN 201010193182 CN 201010193182 A CN201010193182 A CN 201010193182A CN 101829477 B CN101829477 B CN 101829477B
- Authority
- CN
- China
- Prior art keywords
- drier
- electronic control
- air
- valve
- communicated
- 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
Images
Landscapes
- Valves And Accessory Devices For Braking Systems (AREA)
- Drying Of Gases (AREA)
Abstract
The invention relates to an electronic control air drier for the drying treatment of compressed air of a vehicle brake system. The electronic control air drier comprises a drying cylinder assembly and a drier main body, wherein desiccant is arranged in the drying cylinder; a filter is arranged below the desiccant; and an annular channel is arranged between the periphery of the desiccant and the drying cylinder. A multifunctional electronic control performing device is communicated at the rear side of a one-way valve, and the multifunctional electronic control performing device is sealed by a cover. A power plug is arranged on the cover. An electronic control system comprises an ECU (Electronic Control Unit) general control device, a heating device, a pressure reading device, an alarming system and the multifunctional electronic control performing device, and is connected with the ECU general control device. Electromagnetic valves are used for realizing the functions of flow returning and pressure regulation. The heating device and the pressure reading device are arranged on the drier main body. The flow returning electromagnetic valve is communicated with a flow returning channel. The exhaust electromagnetic valve is communicated with the air inlet electromagnetic valve, an exhaust valve and a draining port. The heating device is arranged at the side of the draining port.
Description
Technical field
The present invention relates to a kind of device, particularly a kind of electronic control air drier that is used for for the processing of motor vehicle braking system compressed air drying with compressed air adsorption dry.
Background technology
In vehicle compressed-air power control system, produce compressed air with air compressor as high-pressure air source and act on work system realizing the control action of regulation, because the compressed air that produces contains the moisture and the minute impurities that can not filter out through general filter; And the mist of oil drop brought in through the transfer pipeline process in compression process neutralization of compressed air; The impurity that makes the pneumatic system of vehicle be easy to sneaked into stops up, and the minute impurities in the compressed air, oil droplet and moisture not only pollute pneumatic system pipeline, and it is rotten to make the components and parts of system produce corrosion; Reduce the service life of pneumatic means; Even more serious is that when pneumatic system was used under cold conditions, the moisture in the compressed air can condense in the passage; Blocking pipeline and the action of retardance element; Cause system works malfunctioning, reduce the reliability of atmospheric control, cause the accident.
In order to address the above problem, the technical staff is provided with air dryer in compressed air system, impurity such as drips to remove the moisture, micronic dust, the mist of oil that wherein comprise.General air dryer has drying and drier body; Be equipped with screen pack, and the drying of molecular sieve be installed on the drier body; Drier body internal drainage valve, pressure regulating valve device and the corresponding connection of each air flue; The water-vapo(u)r saturation of adopting the recoil regeneration to solve molecular sieve, the service life of prolongation air dryer.This design at work, when gas consumption was higher, the drier pressure unloading did not reach the setting pressure of pressure regulating valve device, the molecular sieve regeneration that can not recoil makes the functions/drying premature failure of molecular sieve.For this reason, the technical staff improves existing compressed-air drier, substitutes pressure regulator valve adjustment pressure through automatically controlled mode, makes the regeneration that can recoil of molecular sieve in the drying, the service life of prolongation molecular sieve, the work that the assurance pneumatic system can normal reliable.Publication number: CN 101648106A; Denomination of invention: Intelligentized air dryer; The application for a patent for invention open file disclosed a kind of technical scheme of electronic control air drier; This design mainly comprises drying assembly and drier body assembly two large divisions, and wherein the drying assembly has drier, filter, circular passage; The drier body assembly has drier valve body, heater, exhaust apparatus and electric-control system; Electric-control system has pressure reading device, automatically controlled actuating unit and ECU master control device.Owing to adopted automatically controlled actuating unit, ECU master control device and three parts of pressure reading device to substitute traditional pressure regulating valve device, avoided compressed air system because of assisting with gas or the higher molecular sieve recoil regeneration difficulty that causes of normal gas consumption; Secondly, joint cover and gland through screw automatically controlled actuating unit, ECU (electronic control unit) are always controlled device and the drier valve body connects, and makes the Intelligentized air dryer compact conformation.This technical scheme is designed to two outlets in the dry air exit; A delivery outlet is communicated with pneumatic element; Another delivery outlet connection one regeneration gas receiver, and from regeneration gas receiver connection regeneration air inlet, with the usefulness as regeneration that the molecular sieve in the drying is recoiled; And its heater needs power supply separately, though this design makes progress than the compressed-air drier of tradition through return valve device and pressure regulating valve device, still fails to make compressed-air drier to accomplish that volume is little, design is succinct, reliable operation, easy to use.
Summary of the invention
In order to solve the technological deficiency that prior art exists, the object of the present invention is to provide a kind of electronic control air drier, it can be accomplished, and the compressed-air drier volume is little, design is succinct, reliable operation, easy to use.
To achieve these goals, the technical scheme of electronic control air drier of the present invention is:
Electronic control air drier comprises drying assembly and drier body, and the drying assembly is installed on drier body top, has drier in the drying, and the drier bottom has filter, has the circular passage between drier periphery and the drying; Drier body has air inlet, delivery outlet; The air inlet below is communicated with air bleeding valve; The passage of drier body central authorities is communicated with delivery outlet through check valve; The check valve rear side is communicated with multi-functional automatically controlled actuating unit, and wherein: case is loaded on the drier body whole multi-functional automatically controlled actuating unit is sealed, and attaching plug is arranged on the case; Electric-control system is made up of ECU master control device, heater assembly, pressure reading device, warning system, multi-functional automatically controlled actuating unit; Heater assembly, pressure reading device, warning system, the multi-functional automatically controlled actuating unit of being made up of magnetic valve link to each other with ECU master control device, utilize magnetic valve to realize refluxing and voltage regulation function; Heater and pressure reading device are directly installed on the drier body; Return flow solenoid valve is communicated with the return flow line; Exhaust solenoid valve is communicated with air inlet magnetic valve, air bleeding valve and evacuation port, and the emptying oral-lateral is provided with heater.
The pressure reading device has at least one piezo-resistance formula baroceptor.
Have four stitch on the piezo-resistance formula baroceptor, be respectively output signal anode, negative terminal, electrode line, negative line.
Warning system has the LED alarm lamp, is arranged on the case.
Case is connected with drier body through screw.
Heater has at least one electrical bar, its rated voltage 24V, rated output power 100W.
Electronic control air drier; Comprise drying assembly (2) and drier body (8), drying assembly (2) is installed on drier body (8) top, has drier (3) in the drying; Drier (3) bottom has filter (5), has circular passage (4) between drier (3) periphery and the drying; Drier body (8) has air inlet (6) and delivery outlet (11), and the air inlet below is communicated with air bleeding valve, and the centre gangway (7) of drier body (8) is communicated with delivery outlet (11) through check valve (10), and check valve (10) rear side is communicated with multi-functional automatically controlled actuating unit, wherein:
The drier body (8) that is loaded on case (22) goes up whole multi-functional automatically controlled actuating unit sealing, and attaching plug (16) is arranged on the case (22);
Electric-control system is made up of ECU master control device (19) and heater assembly (21) and pressure reading device (12) and warning system (15) and multi-functional automatically controlled actuating unit; Heater (21) links to each other with ECU master control device (19) with the multi-functional automatically controlled actuating unit of being made up of magnetic valve with warning system (15) with pressure reading device (12), utilizes magnetic valve to realize refluxing and voltage regulation function;
Heater (21) and pressure reading device (12) are directly installed on the drier body (8);
Gas circuit (24) is communicated with return flow line (13) to centre gangway (7) through return flow solenoid valve (14);
Gas circuit (24) divides work two branch roads behind air inlet magnetic valve (17); Wherein a branch road is communicated with the valve pocket of air bleeding valve (9); Another branch road is communicated with evacuation port (23) through exhaust solenoid valve (20), and exhaust solenoid valve is communicated with air inlet magnetic valve, air bleeding valve and evacuation port, and evacuation port (23) side is provided with heater (21).
Pressure reading device (12) has at least one piezo-resistance formula baroceptor.
Have four stitch on the piezo-resistance formula baroceptor, be respectively output signal anode, negative terminal, electrode line, negative line.
Warning system (15) has the LED alarm lamp, is arranged on the case (22).
Case (22) is connected with drier body (8) through screw.
Heater (21) has at least one electrical bar, its rated voltage 24V, rated output power 100W.
Because after adopting such scheme; The present invention in use detects the air dryer pressure inside through ECU master control device, works through electric-control system driving execution device; Replace the bigeminy magnetic valve that prior art is used with one three magnetic valve; Accomplish the control off-load, the recoil regeneration that refluxes, air feed function again, the gas of recoil has been cancelled the gas receiver that prior art is used from after the delivery outlet check valve; Effective compressed air to entering carries out dried and the recoil of drier is regenerated, and realizes utilizing magnetic valve to reach and refluxes and voltage regulation function.Directly be loaded on pressure sensor on the valve body; The stitch of pressure sensor directly links to each other with the ECU wiring board, and no outside line connects, and heater is directly through the power supply of ECU master control device; The attaching plug centrally connected power supply is set on case, and volume is little, design is succinct, reliable operation, easy to use.Case gets up ECU master control device, magnetic valve, pressure reading device and heater housing, and through the gasket seal water proof and dust proof, appearance has only a plug, outside nothing coiling.And the warning LED light is set on case realizes failure warning.
Description of drawings
Fig. 1 is an electronic control air drier cutaway view of the present invention;
Fig. 2 is an electronic control air drier operation principle sketch of the present invention.
Label in the accompanying drawing:
1. space on the drying, 2. drying assembly, 3. drier, 4. circular passage, 5. filter, 6. air inlet; 7. centre gangway, 8. drier body, 9. air bleeding valve, 10. check valve, 11. delivery outlets, 12. pressure reading devices; 13. the return flow line, 14. return flow solenoid valves, 15. warning systems, 16. attaching plugs, 17. air inlet magnetic valves, 18.LED indicator lamp; 19.ECU the master control device, 20. exhaust solenoid valves, 21. heaters, 22. cases, 23. evacuation ports, 24. gas circuits.
The specific embodiment
Be further described below in conjunction with the specific embodiment of Figure of description electronic control air drier of the present invention.
Electronic control air drier of the present invention as depicted in figs. 1 and 2; Comprise drying assembly 2 and drier body 8, drying assembly 2 is installed on drier body 8 tops, and drying assembly 2 internal upper parts have drier 3; Drier 3 can use molecular sieve; Drier 3 tops have drying upper space 1, and drier 3 lower periphery have filter 5, have circular passage 4 between drier 3 peripheries and the drying.Drier body 8 has air inlet 6, and air inlet 6 belows are communicated with air bleeding valve 9, and drier body 8 centre gangwaies 7 are communicated with delivery outlet 11 through check valve 10,
Check valve 10 rear sides of delivery outlet 11 are communicated with return flow solenoid valve 14 and air inlet magnetic valve 17, and delivery outlet 11 passages are through return flow solenoid valve 14 connection return flow line 13 to centre gangwaies 7.Check valve 10 rear sides of delivery outlet 11 are provided with pressure reading device 12; Pressure reading device 12 is servicing units of ECU master control device 19; Be installed on the drier body 8; Read the air pressure at delivery outlet 11 places in real time, and convert the air pressure numerical value that reads to voltage and feed back to ECU master controller 19, pressure reading device 12 can adopt at least one piezo-resistance formula baroceptor; Have four stitch on the piezo-resistance formula baroceptor, be respectively signal output plus terminal, negative terminal, electrode line, negative line.
ECU master control device 19 has circuit board, single-chip microcomputer, cooling system, warning system 15, is the control core of electronic control air drier, and wherein, warning system 15 can adopt LED light 18, is installed on the case 22.
Electric-control system comprises return flow solenoid valve 14, air inlet magnetic valve 17, exhaust solenoid valve 20, and electric-control system is connected with ECU master control device 19.
Electronic control air drier in use; The vehicle entry into service of electronic control air drier is installed, and the engine drives air compressor is the gas receiver inflation of vehicle, is got into drier body 8 by the air compressor air compressed through air inlet 6; Condensed water in the compressed air drops on the drier body 8 lower bank air valves 9; Compressed air goes upward to drying 2, filters out wherein mist of oil and fine impurity through filter 5, and compressed air gets into space 1 on the drying through circular passage 4; Pass drier 3 absorption then and fall wherein contained humidity, dry compressed air is pushed check valve 10 open from delivery outlet 11 outputs.
Be installed in the 12 detection delivery outlets of the pressure reading device behind the check valve 10,11 place's air pressure on the drier body 8; Convert detected output pressure to voltage and feed back to ECU master controller 19; The break-make of return flow solenoid valve 14 through logical program s operation control electric-control system of ECU controller 19, air inlet magnetic valve 17, exhaust solenoid valve 20; When detected pressures during, promote air bleeding valve 9 from the dried compressed air of delivery outlet 11, simultaneously greater than preset cut-out pressure; Carry out drier 3 recoil regeneration through return flow line 13 entering centre gangwaies 7, drier 3, circular passage 4; When the air pressure of delivery outlet 11 is lower than preset value, ECU master controller 19 control exhaust solenoid valves 20 with compressed air through evacuation port 23 rows to atmosphere, accomplish the off-load of automatically controlled compressed-air drier, the recoil regeneration that refluxes, air feed function again.
Whole electronic-controlled installation and ECU controller 19 and heater 21 are sealed in the case 22, guarantee not lost efficacy by external environmental interference, and water resistance is good; And, system power supply mode is integrated, be connected on the attaching plug 16 on the case 22; Make structure compact, easy to use more.The LED light 18 of warning system 15 also is arranged on the case 22, and fault that can suggestion device guarantees safe handling.
Electronic control air drier of the present invention can use in the air compression system of vehicle, also can need carry out the occasion use of dry decontamination to compressed air in the other technologies field.
Claims (6)
1. electronic control air drier; Comprise drying assembly (2) and drier body (8), drying assembly (2) is installed on drier body (8) top, has drier (3) in the drying; Drier (3) bottom has filter (5), has circular passage (4) between drier (3) periphery and the drying; Drier body (8) has air inlet (6) and delivery outlet (11); The air inlet below is communicated with air bleeding valve; The centre gangway (7) of drier body (8) is communicated with delivery outlet (11) through check valve (10), and check valve (10) rear side is communicated with multi-functional automatically controlled actuating unit, it is characterized in that:
The drier body (8) that is loaded on case (22) goes up whole multi-functional automatically controlled actuating unit sealing, and attaching plug (16) is arranged on the case (22);
Electric-control system is made up of ECU master control device (19) and heater assembly (21) and pressure reading device (12) and warning system (15) and multi-functional automatically controlled actuating unit; Heater (21) links to each other with ECU master control device (19) with the multi-functional automatically controlled actuating unit of being made up of magnetic valve with warning system (15) with pressure reading device (12), utilizes magnetic valve to realize refluxing and voltage regulation function;
Heater (21) and pressure reading device (12) are directly installed on the drier body (8);
Gas circuit (24) is communicated with return flow line (13) to centre gangway (7) through return flow solenoid valve (14);
Gas circuit (24) divides work two branch roads behind air inlet magnetic valve (17); Wherein a branch road is communicated with the valve pocket of air bleeding valve (9); Another branch road is communicated with evacuation port (23) through exhaust solenoid valve (20), and exhaust solenoid valve is communicated with air inlet magnetic valve, air bleeding valve and evacuation port, and evacuation port (23) side is provided with heater (21).
2. electronic control air drier as claimed in claim 1 is characterized in that: pressure reading device (12) has at least one piezo-resistance formula baroceptor.
3. electronic control air drier as claimed in claim 2 is characterized in that: have four stitch on the piezo-resistance formula baroceptor, be respectively output signal anode, negative terminal, electrode line, negative line.
4. electronic control air drier as claimed in claim 1 is characterized in that: warning system (15) has the LED alarm lamp, is arranged on the case (22).
5. electronic control air drier as claimed in claim 1 is characterized in that: case (22) is connected with drier body (8) through screw.
6. electronic control air drier as claimed in claim 1 is characterized in that: heater (21) has at least one electrical bar, its rated voltage 24V, rated output power 100W.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010193182 CN101829477B (en) | 2010-06-07 | 2010-06-07 | Electronic control air drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010193182 CN101829477B (en) | 2010-06-07 | 2010-06-07 | Electronic control air drier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101829477A CN101829477A (en) | 2010-09-15 |
| CN101829477B true CN101829477B (en) | 2012-09-12 |
Family
ID=42713787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010193182 Active CN101829477B (en) | 2010-06-07 | 2010-06-07 | Electronic control air drier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101829477B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102247745B (en) * | 2011-07-19 | 2013-08-07 | 瑞立集团瑞安汽车零部件有限公司 | Mechanically/electrically driven air dryer, vehicle air pressure braking system and vehicle |
| CN103335533B (en) * | 2013-07-04 | 2015-04-08 | 瑞立集团瑞安汽车零部件有限公司 | Electronic control condenser with heating device |
| BE1022637A9 (en) * | 2014-12-16 | 2016-10-06 | Atlas Copco Airpower Nv | DRYER FOR COMPRESSED GAS COMPRESSOR INSTALLATION EQUIPPED WITH DRYER AND METHOD FOR DRYING GAS |
| CN106512669B (en) * | 2016-08-29 | 2022-11-01 | 浙江万安科技股份有限公司 | Electric control dryer assembly with ECU controller and control method |
| CN106178853A (en) * | 2016-08-31 | 2016-12-07 | 瑞立集团瑞安汽车零部件有限公司 | A kind of automatically controlled air treatment system |
| CN107051131A (en) * | 2016-12-27 | 2017-08-18 | 高玉秀 | Automatically controlled drier |
| CN107685725B (en) * | 2017-07-25 | 2019-12-03 | 湖北航天技术研究院特种车辆技术中心 | A kind of air supply system on hybrid power chassis |
| CN107776564A (en) * | 2017-11-13 | 2018-03-09 | 浙江德翰制动系统有限公司 | Automobile integral air processing system |
| CN111802783B (en) * | 2020-07-17 | 2023-11-21 | 杭州语诺科技有限公司 | Lifting type public blower based on energy conservation and safety |
| CN111759070B (en) * | 2020-07-17 | 2023-11-17 | 杭州语诺科技有限公司 | Wall-hanging self-service hair dryer with blowing head free of electric shock risk |
| CN114682057A (en) * | 2020-12-28 | 2022-07-01 | 克诺尔商用车系统（重庆）有限公司 | air dryer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2246605Y (en) * | 1996-01-10 | 1997-02-05 | 中国重型汽车集团公司技术发展中心 | Vehicle brake air dryer |
| CN2300556Y (en) * | 1997-05-16 | 1998-12-16 | 张峰 | Air dehumidifier |
| CN1662409A (en) * | 2002-07-03 | 2005-08-31 | 沃布科汽车（英国）有限公司 | Vehicle air supply system |
| CN200951378Y (en) * | 2006-09-13 | 2007-09-26 | 重庆卡福汽车制动转向系统有限公司 | Double cylinder air dryer |
| CN101648106A (en) * | 2009-09-14 | 2010-02-17 | 瑞立集团瑞安汽车零部件有限公司 | Intelligentized air dryer |
| CN201669042U (en) * | 2010-06-07 | 2010-12-15 | 瑞立集团瑞安汽车零部件有限公司 | Electric control air drier |
-
2010
- 2010-06-07 CN CN 201010193182 patent/CN101829477B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2246605Y (en) * | 1996-01-10 | 1997-02-05 | 中国重型汽车集团公司技术发展中心 | Vehicle brake air dryer |
| CN2300556Y (en) * | 1997-05-16 | 1998-12-16 | 张峰 | Air dehumidifier |
| CN1662409A (en) * | 2002-07-03 | 2005-08-31 | 沃布科汽车（英国）有限公司 | Vehicle air supply system |
| CN200951378Y (en) * | 2006-09-13 | 2007-09-26 | 重庆卡福汽车制动转向系统有限公司 | Double cylinder air dryer |
| CN101648106A (en) * | 2009-09-14 | 2010-02-17 | 瑞立集团瑞安汽车零部件有限公司 | Intelligentized air dryer |
| CN201669042U (en) * | 2010-06-07 | 2010-12-15 | 瑞立集团瑞安汽车零部件有限公司 | Electric control air drier |
Non-Patent Citations (4)
| Title |
|---|
| KGQ-8型车用空气干燥器;赵联芳;《汽车与配件》(第13期);18-19 * |
| 解思立.进口法国机车车辆的压缩空气干燥技术――SECAL222型空气干燥器结构、原理与试验.《铁道车辆》.1989,(第05期), |
| 赵联芳.KGQ-8型车用空气干燥器.《汽车与配件》.(第13期), |
| 进口法国机车车辆的压缩空气干燥技术――SECAL222型空气干燥器结构、原理与试验;解思立;《铁道车辆》;19890525(第05期);18-25 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101829477A (en) | 2010-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101829477B (en) | Electronic control air drier | |
| CN101648106B (en) | Intelligentized air dryer | |
| US4631073A (en) | Method and apparatus for theadsorptive fractionation of gases | |
| CN102159435B (en) | Method for operating parking brake module in event of defects and parking brake module suitable for performing method | |
| CN104122834B (en) | A kind of control method and device without heat absorption dried-air drier | |
| CN104083995B (en) | Heatless absorption air drying method of air compressor and module type air dryer | |
| US4559065A (en) | Twin tower gas fractionation apparatus | |
| CN201669042U (en) | Electric control air drier | |
| RU83712U1 (en) | DEVICE FOR DRYING COMPRESSED AIR | |
| CN103100285B (en) | Modular integrated compressed air purification device | |
| CN205683813U (en) | A kind of vehicle-mounted compressed air purifying drying device | |
| CN208340443U (en) | A kind of interaction switch type compressed air purifier | |
| CN202438249U (en) | Electric-control air treatment unit for vehicles | |
| WO1987004946A1 (en) | A gas concentrating method and plant | |
| CN113635936B (en) | Parking brake control module for railway vehicle | |
| CN202876596U (en) | Modular integrated compressed air purifying device | |
| CN205700068U (en) | A kind of automatically controlled drier | |
| CN206660901U (en) | A kind of automatically controlled air treatment system | |
| CN110920592A (en) | Intelligent gas circuit management system and control method thereof | |
| CN208526202U (en) | A kind of inside-admission outside-exit type compressed air dry cartridge filter refrigerating | |
| CN201482404U (en) | Intellectualized air dryer | |
| CN106314412A (en) | Electronic control air handling unit with the function of C A N | |
| CN212594891U (en) | Adsorption type double-tower air dryer | |
| CN202427329U (en) | Double-tower heatless regeneration dryer for urban rail cars and metro cars | |
| RU2008139194A (en) | DEVICE FOR DRYING COMPRESSED AIR AND OTHER GAS MEDIA, AND ALSO WAY OF OPERATION OF SUCH DEVICE |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Electronic control air drier Effective date of registration: 20200603 Granted publication date: 20120912 Pledgee: China Minsheng Banking Corp Wenzhou branch Pledgor: Ruili Group Ruian Auto Parts Co.,Ltd. Registration number: Y2020330000292 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |