CN2715159Y - Tail gas detector for light-duty gasoline motor car under short transient operating mode - Google Patents
Tail gas detector for light-duty gasoline motor car under short transient operating mode Download PDFInfo
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- CN2715159Y CN2715159Y CN 03265941 CN03265941U CN2715159Y CN 2715159 Y CN2715159 Y CN 2715159Y CN 03265941 CN03265941 CN 03265941 CN 03265941 U CN03265941 U CN 03265941U CN 2715159 Y CN2715159 Y CN 2715159Y
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- tail gas
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Abstract
The utility model relates to a tail gas detector for a light-duty gasoline motor car under a short transient operating mode, which comprises a main control computer, a driver coadjutor, a printer, a chassis dynamometer and a tail gas quality analysis system. The chassis dynamometer is a German MAHAASMP type chassis dynamometer; the tail gas quality analysis system is a US Sensors VMAS motor car tail gas quality analysis system, and the tail gas quality analysis system comprises a gas analyzer, a flow meter and an engine tachometer; the main control computer outputs instructions through the driver coadjutor, and outputs the detecting data to the printer. Compared with the prior art, the utility model has the advantages that included detecting operating modes are more comprehensive, detecting methods are more scientific, and an effective detector is provided for accurately detecting the true condition of tail gas pollutants under an actual operating mode in order to obtain the requirement of a contaminant exhaust detection standard of China under the short transient operating mode.
Description
Technical field
The utility model relates to measurement mechanism, is specifically related to a kind of Light-Duty Gasoline Vehicle simple transient behavior tail gas pick-up unit.
Background technology
At present, the vehicle exhaust pick-up unit adopts usually as idling method pick-up unit and ASM stable state loading condition pick-up unit.
Vehicle no-load when the outstanding drawback that the idling method detects is detection, only under idling operation, finish, therefore can only detect CO and HC, can not reflect the discharging of NOX, the car that some dischargings reach Europe 1 or Europe 2 only more than 20,000 kilometer the vehicle that travelled, loaded Working condition detecting method shows that its discharging exceeds standard, but CO and HC result that idling detects are often very low, and discharging can be up to standard.In addition, the idling method is cheating easily also, some drivers, car owner before annual test carburetor idling screw, air throttle screw to the rare partially direction adjustment of combination gas, depart from normal idling and add the rich mixture design point, after annual test is passed through, for not making the vehicle launch difficulty, again the carburetor adjustment is returned to previous status.
It is a kind of operating mode detection method that load is arranged that ASM stable state loading condition detects, and can detect the discharging of CO, HC and NOX, but two cruising modes are only arranged, and this can not reflect the actual condition of automobile when travels down comprehensively.
In addition, the result that the idling method detects and ASM stable state loading condition detects carries out at automobile exhaust pollution thing concentration of emission.Judge that with automobile exhaust pollution substrate concentration result whether motor vehicle emission exceeds standard not is scientific methods, this is because do not consider the volumetric flow rate of vehicular discharge.Influence to atmospheric pollution is the pollutant quality of vehicular discharge, and controlling elements should be the gram numbers of every kilometer discharging of each pollutant.The volumetric flow rate of the vehicular discharge that engine displacement is little is less, the volumetric flow rate of the vehicular discharge that engine displacement is big is more, the pollutant levels of the vehicular discharge that possible engine displacement is little are higher, but the pollutant of every kilometer discharging gram number is less, and the pollutant levels of the big vehicular discharge of engine displacement are lower, but the pollutant of every kilometer discharging gram number is more.The automobile of big discharge capacity should be the vehicle that exceeds standard under the normal condition, but if judge with concentration results, then might occur being judged to be adverse consequences up to standard for a short time because of an automobile with small output volume concentration is judged to be the big discharge capacity vehicle concentration that exceeds standard greatly, thereby this method is unscientific.
In sum, the domestic light-duty vehicle tail gas pick-up unit that China's simple transient behavior pollutant emission examination criteria requires that meets that does not still have independent development, it is a technological gap.
The utility model content
The purpose of this utility model is to overcome the various defectives of prior art, make tail-gas from gasoline automobiles detect the requirement that reaches China's simple transient behavior pollutant emission examination criteria, the test operating mode that is contained more comprehensively, measuring method science more, the truth of exhaust pollutant discharging provides a kind of Light-Duty Gasoline Vehicle simple transient behavior pick-up unit when travelling under actual condition for detecting automobile exactly.
For achieving the above object, the utility model Light-Duty Gasoline Vehicle simple transient behavior tail gas pick-up unit, comprise main control computer and the swamper's instrument and the printer that link to each other respectively with main control computer, also comprise the chassis dynamometer and the tail-gas quality analytic system that link to each other with main control computer, chassis dynamometer is German MAHA ASM P type chassis dynamometer, its absorption maximum power is 200kW, the highest test speed of a motor vehicle is 200km/h, mechanical rotation inertia is 907kg, the test axle heavily is 2.7 tons, drive motor power is 2.5kW, and diameter of cylinder is 217mm; The tail-gas quality analytic system is a U.S. Sensors VMAS vehicle exhaust quality analysis system; The tail-gas quality analytic system comprises gas analyzer, the flowmeter that links to each other with gas analyzer and engine speed meter; Gas analyzer have through flexible pipe coupled, can prolong the probe that places detected tailstock tracheae; Flowmeter have through the dilution blower fan coupled, can prolong near the dilution flexible pipe that places the tested vehicle offgas duct; The engine speed meter has the speed probe that is contained on the tested vehicle engine ignition circuit; The main control computer output order is to swamper's instrument, and exports the data of testing result to printer.
The utility model Light-Duty Gasoline Vehicle simple transient behavior tail gas pick-up unit, wherein speed probe is induction speed probe.
The utility model Light-Duty Gasoline Vehicle simple transient behavior tail gas pick-up unit, wherein the dead ahead of tested vehicle is provided with cooling blower.
The utility model Light-Duty Gasoline Vehicle simple transient behavior tail gas pick-up unit advantage is with good effect: compare with existing vehicle exhaust pick-up unit such as idling method pick-up unit, ASM stable state loading condition pick-up unit, the test operating mode that is contained more comprehensively, comprise acceleration, deceleration, at the uniform velocity with various operating modes such as idling; Measuring method is science more, and surveyingpin is not only to be concentration to the quality of exhaust pollutant.The truth of exhaust pollutant discharging reaches the requirement of China's simple transient behavior pollutant emission examination criteria when travelling under actual condition for detecting automobile exactly, and a kind of effective pick-up unit is provided.
Description of drawings
Below in conjunction with drawings and Examples the technical solution of the utility model is elaborated.
Fig. 1 is the structural representation of the utility model Light-Duty Gasoline Vehicle simple transient behavior tail gas pick-up unit;
Fig. 2 is the structural drawing (front view) of German MAHA ASM P type chassis dynamometer;
Fig. 3 is the structural drawing (vertical view) of German MAHA ASM P type chassis dynamometer;
Fig. 4 is the pneumatic diagram of five gas analyzers in the U.S. Sensors VMAS system;
Fig. 5 is the structure principle chart of flowmeter in the U.S. Sensors VMAS system;
Fig. 6 is the utility model Light-Duty Gasoline Vehicle simple transient behavior tail gas pick-up unit computer control block diagram one;
Fig. 7 is the utility model Light-Duty Gasoline Vehicle simple transient behavior tail gas pick-up unit computer control block diagram two;
Fig. 8 is the utility model Light-Duty Gasoline Vehicle simple transient behavior tail gas pick-up unit computer control block diagram three.
Embodiment
For convenience's sake, list as follows earlier: 1. dilute blower fan, 2. five gas analyzers, 3. dilution flexible pipe to the mark of accompanying drawing, 4. air compressor, 5.MAHA ASM P type chassis dynamometer, 7. cooling blower, 8. swamper's instrument, 9. tested automobile, 10. printer, 11. main control computer, 12. engine speed meters, 13. flowmeters, 14.Sensors VMAS vehicle exhaust quality analysis system, 15. position-limited wheel holes, 16. left master rotors, 17. driving motor, 18. left and right sides master rotor shaft couplings, 19 lifting jacks, 20. right master rotor, 21. shaft couplings, 22. eddy current absorption dynamometers, 23. flywheel, 24. major-minor drum belt gearings, 25. right auxiliary cylinders, 26. the direct motor drive shaft coupling, 27. left auxiliary cylinders, 28. speed probes, 29. position-limited wheel, 30. scaffolds, 31. inter panels, 32. coupling bolt, 33. sample gas inlet, 34. threeways, 35. filter cleaner, 36. unwatering pumps, 37. drain outlets, 38. vacuum pressure switch, 39. threeways, 40. aspiration pumps, 41. two-position three way magnetic valve, 42. filter cleaners, 43.O
2Sensor, 44. threeways, the outlet of 45. sample gas, the outlet of 46. sample gas, 47.NO sensor, 48. pressure transducers, 49. threeways, 50.CO, CO
2With the HC sensor, 51. high standard fixed end mouths, the 52. low ports of demarcating, 53. zero gas is demarcated port, 54. ambient air inlet, 55. filter cleaners, 56. two-position three way magnetic valve, 57. two-position three way magnetic valves, 58. two-position three way magnetic valves, 59. two-position three way magnetic valve, 60. threeways, 61. condensers, 62. threeway, 63. moisture traps, 64. flowmeter airflow lines, 65. flow sensor piezoelectric crystal (transmitter and receiver), 66. the flow-disturbing bar, 67. air-flow stopple coupons, 68. sampling air chambers, 69. zirconia sensor, 70. gas circuit, 71. temperature sensors, 72. pressure transducers, 73. microprocessor unit, the 74.RS-232 communication interface.
Referring to Fig. 1, Light-Duty Gasoline Vehicle simple transient behavior tail gas pick-up unit, comprise main control computer 11 with its swamper's instrument 8 that links to each other respectively and printer 10, also comprise coupled chassis dynamometer 5 and tail-gas quality analytic system 14.In detection, cooling blower 7 is positioned at the dead ahead of tested vehicle 9, and swamper's instrument 8 is positioned at the front upper place of tested vehicle 9.
Chassis dynamometer 5 is German MAHA ASM P type chassis dynamometer, and its absorption maximum power is 200kW, and the highest test speed of a motor vehicle is 200km/h, and mechanical rotation inertia is 907kg, and the test axle heavily is 2.7 tons, and drive motor power is 2.5kW, and diameter of cylinder is 217mm.
Tail-gas quality analytic system 14 is a U.S. Sensors VMAS vehicle exhaust quality analysis system.Tail-gas quality analytic system 14 comprises gas analyzer 2, coupled flowmeter 13 and engine speed meter 12.Gas analyzer 2 have through flexible pipe coupled, can prolong the probe that places detected tailstock tracheae.Flowmeter 13 have through dilution blower fan 1 coupled, can prolong near the dilution flexible pipe 3 that places the tested vehicle offgas duct.Engine speed meter 12 has the speed probe that is contained on the tested vehicle engine ignition circuit.Speed probe is induction speed probe.
Referring to Fig. 2 and Fig. 3, the major and minor cylinder 16,20,25 and 27 of chassis dynamometer 5 by bearings on framework 30, left and right master rotor 16 and 20 connects together by shaft coupling 21, auxiliary cylinder 25 and 27 connects together by drive motor 17 and shaft coupling 26, major and minor cylinder links by belt transmission 24, eddy current absorption dynamometer 22 links by shaft coupling 21 and master rotor, speed probe 28 is installed in the outer end of master rotor 16, framework 30 both sides respectively have 5 holes 15, are used to install position-limited wheel 29.When tested vehicle moves, need overcome the braking power that applies by eddy current absorption dynamometer 22 on cylinder, measure the speed of cylinder by speed probe 28.
Referring to Fig. 4, when measuring the exhaust pollutant concentration of emission, tail gas sample gas enters moisture trap 63 from sample gas inlet 33, enters CO, CO by aspiration pump 40 suctions through two-position three way magnetic valve 59 and 41, threeway 62,60 and 39, condenser 61, filter cleaner 42
2Measure these three kinds of pollutant levels with HC sensor 50, behind threeway 49 and 44, enter O respectively again
2Sensor 43 and NO sensor 47 are measured O
2With the concentration of NO, the sample gas of measured mistake outside exporting 45 and 46 discharge machines, unwatering pump 36 runnings simultaneously, isolated water through threeway 34, filter cleaner 35 with export outside the 37 discharge machines.High range standard gas timing signal, solenoid valve 56,57,58 and 59 powers on, connected the gas circuit of high standard fixed end mouth 51 with each sensor, high range standard gas enters from high standard fixed end mouth 51, demarcates through the concentration that aspiration pump 40, solenoid valve 41 and filter cleaner 42 successively enter CO, CO2 and HC sensor 50, O2 sensor 43 and NO sensor 47 couples of CO, CO2, HC, NO and O2.Lower range standard gas timing signal, solenoid valve 56,57 and 59 powers on, connected the gas circuit of low demarcation port 52 and each sensor, lower range standard gas enters the concentration that successively enters CO, CO2 and HC sensor 50, O2 sensor 43 and NO sensor 47 couples of CO, CO2, HC, NO and O2 through aspiration pump 40, solenoid valve 41 and filter cleaner 42 from low demarcation port 52 and demarcates.Zero standard gas timing signal, solenoid valve 56 and 59 powers on, and has connected the gas circuit of zero gas demarcation mouth 53 and each sensor, and zero standard gas enters through aspiration pump 40, solenoid valve 41 and filter cleaner 42 priorities from demarcation mouth 53 and enters CO, CO
2With HC sensor 50, O
247 pairs of zero gas of sensor 43 and NO sensor are demarcated.During the surrounding air measurement, solenoid valve 59 powers on, and has connected the gas circuit of surrounding air measurement mouth 54 with each sensor, and surrounding air enters through aspiration pump 40, solenoid valve 41, filter cleaner 42 and 55 priorities from measurement mouth 54 and enters CO, CO
2With HC sensor 50, O
2Sensor 43 and NO sensor 47 couples of CO, CO
2, HC, O
2Measure with the concentration of NO.
Referring to Fig. 5, enter into flowmeter airflow line 64 by dilution blower fan 1 through the diluents of dilution flexible pipe 3 suction, form stable dilution air flow, dilution air flow is subjected to the interference of flow-disturbing bar 66, alternately produce two from flow-disturbing bar 66 both sides and show regular vortex, vortex frequency is converted to the voltage pulse signal that is directly proportional with flow by flow sensor piezoelectric crystal 65, record instantaneous actual flow, simultaneous temperature sensor 71 measures the temperature of diluents, pressure transducer 72 measures the pressure of diluents, be used for basis of calculation gas flow, zirconia sensor 69 is by air-flow stopple coupon 67, sampling air chamber 68 and gas circuit 70 measure O in the diluents
2Concentration.
In the utility model Light-Duty Gasoline Vehicle simple transient behavior tail gas pick-up unit embodiment, main control computer 11 output orders are to swamper's instrument 8, and export the data of testing result to printer 10.Main control computer 11 has the RS232 serial communication interface.
The following describes testing process: referring to Fig. 6-Fig. 8, the Lifter Raised of main control computer 11 instruction chassis dynamometers, tested vehicle reaches chassis dynamometer, falls lifting jack.In information of vehicles input interface typing tested vehicle information,, determine the braking power and the emission limit of the eddy current absorption dynamometer of chassis dynamometer according to tested vehicle information.Tested vehicle moves on chassis dynamometer with the 195s simple transient behavior, and main control computer 11 is gathered dynamometer machine moment, the speed of a motor vehicle, time, vehicle exhaust flow, CO, CO in real time
2, HC, NO and O
2Original concentration, dilution O
2Concentration, environment O
2Concentration, engine speed, automobile dilute data such as exhaust temperature and pressure, finally obtain the discharging gross mass of each pollutant.To each device talk situation, continuous 3 seconds of the speed of a motor vehicle is overproof, and speed of a motor vehicle accumulative total 15 seconds is overproof, load continuous 3 seconds overproof, it is overproof to load accumulative total 15 seconds, to gasoline vehicle CO+CO
2＜6%, to other fuel vehicle CO+CO
2＜4%, crude sampling system low discharge, dilution natural gas gathering system low discharge, dilution ratio is low excessively, the working condition measurement time, the tested vehicle duty, tested vehicle utilization situation etc. is monitored in real time.If the discontented sufficient requirement of arbitrary monitoring project, simple transient behavior is zero setting again, image data not, and test restarts, and detects requirement condition until satisfying the 195s simple transient behavior.The test of 195s simple transient behavior is finished, and shows the discharging gross mass of each pollutant, judges and provides testing result according to emission limit to be " qualified " or " defective ", and print examining report, NO, CO, CO
2With 4 concentration curves of HC and 4 figure-of-merit curves, original O
2With dilution O
2Lifting jack is risen in 12 test curve playback such as concentration curve, actual vehicle speed curve, air-fuel ratio curve and printing, and tested vehicle withdraws from chassis dynamometer.
Claims (3)
1. Light-Duty Gasoline Vehicle simple transient behavior tail gas pick-up unit, comprise main control computer (11) and the swamper's instrument (8) and the printer (10) that link to each other respectively with described main control computer (11), it is characterized in that: also comprise the chassis dynamometer (5) and the tail-gas quality analytic system (14) that link to each other with described main control computer (11), described chassis dynamometer (5) is German MAHAASM P type chassis dynamometer, its absorption maximum power is 200kW, the highest test speed of a motor vehicle is 200km/h, mechanical rotation inertia is 907kg, the test axle heavily is 2.7 tons, drive motor power is 2.5kW, and diameter of cylinder is 217mm; Described tail-gas quality analytic system (14) is a U.S. SensorsVMAS vehicle exhaust quality analysis system; Described tail-gas quality analytic system (14) comprises gas analyzer (2), the flowmeter (13) that links to each other with described gas analyzer (2) and engine speed meter (12); Described gas analyzer (2) have through flexible pipe coupled, can prolong the probe that places detected tailstock tracheae; Described flowmeter (13) have through dilution blower fan (1) coupled, can prolong near the dilution flexible pipe (3) that places the tested vehicle offgas duct; Described engine speed meter (12) has the speed probe that is contained on the tested vehicle engine ignition circuit; Described main control computer (11) output order is described swamper's instrument (8) extremely, and exports the data of testing result to described printer (10).
2. Light-Duty Gasoline Vehicle simple transient behavior tail gas pick-up unit according to claim 1, it is characterized in that: described speed probe is induction speed probe.
3. Light-Duty Gasoline Vehicle simple transient behavior tail gas pick-up unit according to claim 1 and 2, it is characterized in that: the dead ahead of tested vehicle is provided with cooling blower (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03265941 CN2715159Y (en) | 2003-06-10 | 2003-06-10 | Tail gas detector for light-duty gasoline motor car under short transient operating mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03265941 CN2715159Y (en) | 2003-06-10 | 2003-06-10 | Tail gas detector for light-duty gasoline motor car under short transient operating mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2715159Y true CN2715159Y (en) | 2005-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03265941 Expired - Lifetime CN2715159Y (en) | 2003-06-10 | 2003-06-10 | Tail gas detector for light-duty gasoline motor car under short transient operating mode |
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| Country | Link |
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| CN (1) | CN2715159Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100456012C (en) * | 2007-04-02 | 2009-01-28 | 吉林大学 | Portable detecting device for detecting automobile oil-consumption quantity and tail-gas quality and exhaust quantity |
| CN101868708B (en) * | 2007-11-20 | 2012-01-04 | 株式会社明电舍 | Open/close device for pit cover |
-
2003
- 2003-06-10 CN CN 03265941 patent/CN2715159Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100456012C (en) * | 2007-04-02 | 2009-01-28 | 吉林大学 | Portable detecting device for detecting automobile oil-consumption quantity and tail-gas quality and exhaust quantity |
| CN101868708B (en) * | 2007-11-20 | 2012-01-04 | 株式会社明电舍 | Open/close device for pit cover |
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Patentee address after: The Three River Road 100037 Beijing city Haidian District No. 15 building A room 7008 Beijing jinkaixing science and Technology Co Ltd Patentee address before: 100044, 3 floor, building 5, Xiyuan Hotel, Three Mile River Road, 1, Beijing, Haidian District |
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Owner name: JIADAO TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: BEIJING JINKAIXING SCIENCE AND TECHNOLOGY CO., LTD. Effective date: 20100528 |
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Free format text: CORRECT: ADDRESS; FROM: 100037 ROOM 7008, BLOCK A, ZHONGJIAN BUILDING, NO.15, SANLIHE ROAD, HAIDIANDISTRICT, BEIJING BEIJING JINKAIXING SCIENCE AND TECHNOLOGY CO., LTD. TO: 101111 ROOM 1510, BUILDING 1, NO.99, KECHUANGSHISI STREET, BEIJING ECONOMIC DEVELOPMENT ZONE, BEIJING |
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Effective date of registration: 20100528 Address after: Branch of Beijing Economic Development Zone Beijing City fourteen street 101111 No. 99 Building No. 1 room 1510 Patentee after: JIADAO SCIENCE & TECHNOLOGY Co.,Ltd. Address before: The Three River Road 100037 Beijing city Haidian District No. 15 building A room 7008 Beijing jinkaixing science and Technology Co Ltd Patentee before: Beijing Jinkaixing Technology Co.,Ltd. |
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Owner name: JINKAIXING SCIENCE + TECHNOLOGY CO., LTD., BEIJING Free format text: FORMER OWNER: ROAD LEADER TECHNOLOGY CO., LTD. Effective date: 20121123 Owner name: ROAD LEADER (SHANDONG) TESTING TECHNOLOGY CO., LTD Free format text: FORMER OWNER: JINKAIXING SCIENCE + TECHNOLOGY CO., LTD., BEIJING Effective date: 20121123 |
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Free format text: CORRECT: ADDRESS; FROM: 100873 HAIDIAN, BEIJING TO: 250101 JINAN, SHANDONG PROVINCE Free format text: CORRECT: ADDRESS; FROM: 101111 TONGZHOU, BEIJING TO: 100873 HAIDIAN, BEIJING |
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Effective date of registration: 20121123 Address after: 250101, office building two, East Building, 211 floor, Ji'nan export processing zone, Ji'nan hi tech Zone, Shandong, China Patentee after: DRIVEWAY (SHANDONG) DETECTION TECHNOLOGY CO.,LTD. Address before: 100873 Friendship Hotel Beijing, 64132 South Avenue, Beijing, Haidian District, room number, room number two, Zhongguancun Patentee before: Beijing Jinkaixing Technology Co.,Ltd. Effective date of registration: 20121123 Address after: 100873 Friendship Hotel Beijing, 64132 South Avenue, Beijing, Haidian District, room number, room number two, Zhongguancun Patentee after: Beijing Jinkaixing Technology Co.,Ltd. Address before: Branch of Beijing Economic Development Zone Beijing City fourteen street 101111 No. 99 Building No. 1 room 1510 Patentee before: JIADAO SCIENCE & TECHNOLOGY Co.,Ltd. |
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Owner name: ROAD LEADER (SHANDONG) TESTING TECHNOLOGY CO., LTD Free format text: FORMER OWNER: JINKAIXING SCIENCE + TECHNOLOGY CO., LTD., BEIJING Effective date: 20121220 Owner name: JINKAIXING SCIENCE + TECHNOLOGY CO., LTD., BEIJING Free format text: FORMER OWNER: JIADAO TECHNOLOGY CO., LTD. Effective date: 20121220 |
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Free format text: CORRECT: ADDRESS; FROM: 100873 HAIDIAN, BEIJING TO: 250101 JINAN, SHANDONG PROVINCE Free format text: CORRECT: ADDRESS; FROM: 101111 TONGZHOU, BEIJING TO: 100873 HAIDIAN, BEIJING |
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Effective date of registration: 20121220 Address after: 250101, office building two, East Building, 211 floor, Ji'nan export processing zone, Ji'nan hi tech Zone, Shandong, China Patentee after: DRIVEWAY (SHANDONG) DETECTION TECHNOLOGY CO.,LTD. Address before: 100873 Friendship Hotel Beijing, 64132 South Avenue, Beijing, Haidian District, room number, room number two, Zhongguancun Patentee before: Beijing Jinkaixing Technology Co.,Ltd. Effective date of registration: 20121220 Address after: 100873 Friendship Hotel Beijing, 64132 South Avenue, Beijing, Haidian District, room number, room number two, Zhongguancun Patentee after: Beijing Jinkaixing Technology Co.,Ltd. Address before: Branch of Beijing Economic Development Zone Beijing City fourteen street 101111 No. 99 Building No. 1 room 1510 Patentee before: JIADAO SCIENCE & TECHNOLOGY Co.,Ltd. |
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Expiration termination date: 20130613 Granted publication date: 20050803 |