CN201314914Y - Device for measuring exhaust pollutant from light automobile and engine thereof - Google Patents
Device for measuring exhaust pollutant from light automobile and engine thereof Download PDFInfo
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- CN201314914Y CN201314914Y CNU2008201430030U CN200820143003U CN201314914Y CN 201314914 Y CN201314914 Y CN 201314914Y CN U2008201430030 U CNU2008201430030 U CN U2008201430030U CN 200820143003 U CN200820143003 U CN 200820143003U CN 201314914 Y CN201314914 Y CN 201314914Y
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- 239000003344 environmental pollutant Substances 0.000 title claims abstract description 12
- 231100000719 pollutant Toxicity 0.000 title claims abstract description 12
- 238000005070 sampling Methods 0.000 claims abstract description 65
- 238000001914 filtration Methods 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims description 41
- 239000000203 mixture Substances 0.000 claims description 29
- 239000007789 gas Substances 0.000 claims description 28
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 21
- 238000010790 dilution Methods 0.000 claims description 19
- 239000012895 dilution Substances 0.000 claims description 19
- 238000005259 measurement Methods 0.000 claims description 14
- 239000004215 Carbon black (E152) Substances 0.000 claims description 13
- 229930195733 hydrocarbon Natural products 0.000 claims description 13
- 150000002430 hydrocarbons Chemical class 0.000 claims description 13
- 239000000356 contaminant Substances 0.000 claims description 11
- 238000004458 analytical method Methods 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 229960003753 nitric oxide Drugs 0.000 claims description 7
- 235000019391 nitrogen oxide Nutrition 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000000446 fuel Substances 0.000 claims description 6
- 239000000470 constituent Substances 0.000 claims description 5
- 230000008676 import Effects 0.000 claims description 5
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract 4
- 238000007865 diluting Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 4
- 239000000284 extract Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
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- 230000005540 biological transmission Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000013028 emission testing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000001745 non-dispersive infrared spectroscopy Methods 0.000 description 1
- 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 description 1
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Abstract
The utility model discloses a device for measuring the exhaust pollutant from a light automobile and the engine thereof, comprising a first air filter, a second air filter, a main mixed gas pipe, a mixed gas diluting channel, a particulate sampling unit, a sampling bag unit, a heating type filter, a heating type pump, an analyzer unit and a computer control unit. The first air filter and the second air filter are used for filtering air; the particulate sampling unit is used for sampling particulates in the mixed gas diluting channel; the heating type pump is connected with the heating type filter; and the computer control unit is used for receiving signals from all the units so as to calculate the amount of exhaust pollutant from the engine of the light automobile. The device has completely domestic and international standard performance, obviously higher cost-performance ratio than domestic similar products, practical and improved technical service measures, rapid service response speed and low maintenance cost for users.
Description
Technical field
The utility model relates to a kind of power machine discharge measuring device, is specifically related to the exhaust contaminant measurement mechanism of a kind of light-duty vehicle and engine.
Background technology
Clean atmosphere is that the mankind rely in one of necessary condition of surviving.The mankind also cause a large amount of objectionable impuritiess to be discharged in the air in the progress of exploitation material, have changed the normal composition of air, and air quality is degenerated, and have destroyed existent environment of people.
The turnout and the recoverable amount of China's automobile and engine increase year by year, and its exhaust pollution amount has caused havoc to environmental quality.For this reason, country has taked more and more stricter limit value rules to the discharging of automobile and engine, carries out the detection standard of automobile exhaust contaminant pattern demonstration and conformity of production inspection and sees (GB18352.3-2005, GB17691-2005, GB14762-2002 and GB14762-2008).
For this reason, need the relevant automobile and the measuring equipment of engine exhaust pollutant (operating condition method).This kind equipment all is import at present, cost an arm and a leg, similar home equipment still belongs to blank, domestic automobile and engine production enterprise, research and development testing agency etc. also press for domestic independent development and produce the equipment that the exhaust contaminant (operating condition method) of light-duty vehicle and engine is measured except that need are purchased this type of external measurement mechanism.
Summary of the invention
The purpose of the utility model device is, fill up the product blank of domestic light-duty vehicle and engine exhaust pollutant (operating condition method) measuring equipment, a kind of same class standard of national standard and Europe, the United States that satisfies is provided, reliable and practical, easy operating, cheap light-duty vehicle is also taken into account the device of similar engine exhaust pollutant measurement.
The technical solution of the utility model is:
The exhaust contaminant measurement mechanism of a kind of light-duty vehicle of the present utility model and engine, it comprises:
(1) air cleaner that first, second filtered air is used, the clean air sampling outlet of described two air cleaner links to each other by the import of the 9th, ten pipelines and the 3rd sampling pump respectively;
(2) main mixture pipelines, the inlet of this main mixture pipeline is connected with the outlet of described first air cleaner, the outlet of gasoline automobile tail gas respectively, and the sampling that is disposed with first butterfly valve, flow and is 5L/min and 10L/min on the main mixture pipeline is 6m with first, second Venturi tube, thermometer, pressure gauge, flow
3/ min, 9m
3/ min or flow are 12m
3The main Venturi tube of the metering main mixture piping flow of/min, the outlet of this combination gas pipeline links to each other with the inlet of a blower fan, and the outlet and the atmosphere of this blower fan are connected;
(3) dilution tunnels that are disposed with sampling interface and particle sampling outlet on it, the entrance point of this dilution tunnel is connected with second air cleaner and the outlet of diesel engine automobile tail gas, and combination gas filtrator, the described main venturi plumber of control that bulky grain is used in the filtration combination gas makes the temperature control heat exchanger of temperature to described dilution tunnel endpiece, the gas exhaust piping of second butterfly valve is connected with described main mixture pipeline by being equipped with successively on it;
(4) particle sampling units that are used for the particle sampling of described air-fuel mixture enleanment passage, this particle sampling unit comprises and is disposed with adjustable sampling pump on it, the metering pipeline of particle sampling flow measurement controller, the inlet of described metering pipeline, outlet respectively with described air-fuel mixture enleanment passage on particle sampling outlet, the inlet of particle sampling unit is connected, in described particle sampling unit, be provided with three groups of particles that are arranged in parallel and gather the filter paper frame, gather on filter paper frame at described each particle and to lay filter paper, the inlet end that described three groups of particles are gathered the filter paper frame is connected with the inlet of described particle sampling unit and it exports and is connected with atmosphere or is connected with return-air mouth on being arranged on described dilution tunnel;
(5) hot type hydrocarbon measuring instruments, the inlet of this hot type hydrocarbon measuring instrument and the sampling interface that is located at dilution tunnel are connected;
(6) sampler bag unit that are provided with diluted exhaust sampler bag and cleaned air sampler bag, the inlet of this diluted exhaust sampler bag links to each other with first, second sampling delivery side of pump by first, second pipeline that it is provided with first, second operation valve respectively, the inlet of described first, second sampling pump is connected with described main mixture pipeline by the 4th, the 5th pipeline respectively, and described the 3rd sampling delivery side of pump links to each other with described cleaned air sampler bag by the 3rd pipeline that it is provided with the 3rd operation valve;
(7) hot type filtrators, the population of this hot type filtrator links to each other with the outlet of a waste pipe on threst stand;
(8) hot type pumps, the inlet of this hot type pump links to each other with the outlet of described hot type filtrator;
(9) analytical instrument unit, described analytical instrument unit comprises the hot type hydrocarbon measuring instrument, the hot type nitrogen-oxide analyzer,, oxygen analyser, carbonyl analyzer and capnograph that its air intake opening links to each other with the outlet of a condenser respectively, the inlet of described condenser, the hot type hydrocarbon measuring instrument, the hot type nitrogen-oxide analyzer,, the inlet of oxygen analyser is respectively arranged with the 4th through on it, the 5th, the 6th operation valve, first, two, the 6th of three aspiration pumps, the 7th, the 8th pipeline and described diluted exhaust sampler bag link to each other respectively with outlet with the cleaned air sampler bag, and perhaps the heat pump of directly adopting in the pipeline by the 11 pipeline and engine exhaust links to each other;
When the signal that (10) computer control units, described computer control unit receive the constituent concentration of each analytical instrument output in described thermometer and manometric temperature and pressure signal, the instrumental analysis unit is measured the engine exhaust pollutant on threst stand acceptance from the power on the threst stand, tach signal to calculate the engine exhaust pollutant discharge amount.
The utility model device changes the situation that this type of measurement mechanism relies on external import fully, brings to help the domestic technique development and promote the useful competition that the external product price reduces.
The utility model device is owing to rely on domestic technique and industrial strength, thus price far below external imported product, and performance reaches the requirement of home and abroad standard fully, the ratio of performance to price is apparently higher than external like product; And the technical service measure gears to actual circumstances and is perfect, and service response is very fast, and user's maintenance cost is very low.
Description of drawings
Accompanying drawing is the structural representation of the exhaust contaminant measurement mechanism of a kind of light-duty vehicle of the present utility model and engine.
Embodiment
Below by specific embodiment, in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
The exhaust contaminant measurement mechanism of a kind of light-duty vehicle of the present utility model as shown in drawings and engine, comprise the gasoline automobile mixed cell of filtered air diluted exhaust, the diesel engine automobile unit, hybrid channel of filtered air diluted exhaust, constant volume diluted exhaust sampling unit (CVS) and analytical instrument unit 18 link successively.Computer control unit 11 links to each other with said units respectively.
This concrete device comprises: first air cleaner 1 that (1) filtered air is used and the clean air sampling outlet of second air cleaner, 12, two air cleaner link to each other by the inlet of the 9th, ten pipelines and the 3rd sampling pump 6-3 respectively; (2) main mixture pipelines 2, the inlet of this main mixture pipeline 2 is connected with the outlet of described first air strainer 1, the outlet of gasoline engine tail gas respectively, and the sampling that is disposed with first butterfly valve 9, flow and is 5L/min and 10L/min on main mixture pipeline 2 is 6m with first, second Venturi tube, thermometer, pressure gauge, flow
3/ min and 9m
3The main Venturi tube 4 (CFV is applicable to gasoline automobile) or the flow of the metering main mixture piping flow of/min are 12m
3The 3rd main Venturi tube 4 (CFV is applicable to diesel engine automobile) of the metering main mixture piping flow of/min, the outlet of this mixed pipe line links to each other with the inlet of a blower fan 5, and the outlet and the atmosphere of this blower fan 5 are connected; (3) dilution tunnels 13 that are disposed with sampling interface and particle sampling outlet on it, the size design of this dilution tunnel should guarantee that Reynolds number is greater than 4000, this dilution tunnel endpiece connects to be equipped with successively and filters combination gas filtrator 14, the described main venturi plumber of control that bulky grain is used in the combination gas and make the temperature control heat exchanger 7 of temperature, the gas exhaust piping of second butterfly valve 10, and the endpiece of described gas exhaust piping is connected with described main mixture pipeline; It is the discharge measuring of doing gasoline automobile or diesel engine automobile that first butterfly valve 9 or second butterfly valve 10 are used to control; (4) particle sampling units 15 that are used for the particle sampling of described air-fuel mixture enleanment passage 13, this particle sampling unit comprises the metering pipeline that is disposed with adjustable sampling pump, particle sampling flow measurement controller on it, the inlet of described metering pipeline, outlet are connected with particle sampling outlet, the inlet of particle sampling unit 15 on the described air-fuel mixture enleanment passage 13 respectively, and the particle that is provided with three groups of parallel connections in described particle sampling unit 15 is gathered the filter paper frame; Lay filter paper on described each particle collection filter paper frame, the inlet end that described three groups of particles are gathered the filter paper frame is connected with the inlet of described particle sampling unit and its outlet is connected with atmosphere or also can return the return-air mouth that is located on the dilution tunnel; The principle of work of described particle sampling unit 15 is: the part sample gas of dilution tunnel is gathered filter paper on the filter paper frame by three groups of particles, particle in the diluted exhaust is stayed on the filter paper by filter paper filtering, after work a period of time, its filter core pulled down to weigh obtain the weight of particle, then gravimetric value is imported computer control unit 11; (5) hot type hydrocarbon measuring instruments 16, the inlet of this hot type hydrocarbon measuring instrument 16 and be located at dilution tunnel 13 sampling interfaces and be connected; (6) sampler bag unit 8 that are provided with diluted exhaust sampler bag and cleaned air sampler bag, the inlet of this diluted exhaust sampler bag links to each other with the outlet of first, second sampling pump 6-1,6-2 by first, second pipeline that it is provided with first and second operation valve respectively, and the inlet of described first, second sampling pump 6-1,6-2 is connected with described main mixture pipeline 2 by the 4th, the 5th pipeline respectively; The outlet of described the 3rd sampling pump 6-3 links to each other with described cleaned air sampler bag by its 3rd pipeline that is provided with the 3rd operation valve and its import is communicated with first or second air cleaner respectively and is used to gather cleaned air sample gas; (7) hot type filtrators 17, the inlet of this hot type filtrator links to each other with the outlet of a waste pipe on threst stand; (8) hot type pumps 3, the inlet of this hot type pump 3 links to each other with the outlet of described hot type filtrator 17; (9) analytical instrument unit 18, described analytical instrument unit 18 comprises the hot type hydrocarbon measuring instrument, the hot type nitrogen-oxide analyzer,, oxygen analyser, carbonyl analyzer and capnograph that its air intake opening links to each other with the outlet of a condenser respectively, the inlet of described condenser, the hot type hydrocarbon measuring instrument, the hot type nitrogen-oxide analyzer,, the inlet of oxygen analyser is respectively arranged with the 4th through on it, the 5th, the 6th operation valve, first, two, the 6th of three aspiration pumps, the 7th, the 8th pipeline and described diluted exhaust sampler bag link to each other respectively with outlet with the cleaned air sampler bag; Perhaps link to each other with heat pump 3 mistakes the 11 pipeline that engine exhaust is directly adopted in the pipeline; Automobile is after test is finished, and the aspiration pump in the analytical instrument unit 18 extracts diluted exhaust sample gas and cleaned air by operation valve from sampler bag unit 8, carry out the constituent concentration analysis of exhaust sample gas and cleaned air; When engine emissions testing, be to utilize heat pump 3 directly to adopt the exhaust of engine and by hot type filtrator 17 the analytical instrument unit is sent in exhaust and carried out the composition concentration analysis.Described each analyser of selecting for use can be selected the product of U.S. CAI company or Britain Singal company for use.Measure HC with hot type hydrocarbon measuring instrument (FID), with hot type nitrogen-oxide analyzer, (CLD) measuring N O
X, use carbonyl analyzer and capnograph (NDIR) measure CO, CO
2, measure O with oxygen analyser (PMA)
2Owing to will take into account the straight gas production attitude constituent analysis in the engine rig test, so FID and CLD all adopt the hot type analytical instrument.(10) computer control units 11 are used to control the orderly function that this device each several part is formed, and comprise the signal of constituent concentration etc. of each analytical instrument output of the flow, pressure, temperature and the instrumental analysis unit 18 that receive the CVS unit; Also will accept signals (measurement of these signals does not belong to this device scope) such as power, rotating speed when on threst stand, measuring the engine exhaust pollutant, stipulate to calculate the engine exhaust amount of pollutant according to GB again from engine pedestal.
Be example with the gasoline automobile below, measuring process is described.
On chassis dynamometer, press the automobile of national standard (or the same class standard of Europe, the United States) standardized operation, the tail gas of its engine enters gasoline engine air filtration mixed cell, after being mixed into the diluted exhaust combination gas with cleaned air, aspirated by blower fan 5, force by being discharged to atmosphere after the main Venturi tube (CFV) 4.Accurately measure the volumetric flow rate (m of exhaustion dilution combination gas by main Venturi tube (CFV) 4
3/ min).
In the main mixed pipe line 2 of gas, two first, second Venturi tubes of sampling are set simultaneously by main Venturi tube (CFV) 4.The exhaustion dilution combination gas (two pipe flows are 5L/min or 10L/min) that extracts through first or second Venturi tube by first, second sampling pump 6-1,6-2 enters sampler bag unit 8, to guarantee the sample gas constant flow and to sample in proportion with main Venturi tube (CFV) 4.By the 3rd sampling pump 6-3, from first or second air cleaner, extract cleaned air and send in the cleaned air sampler bag of sampler bag unit 8.
After sampling finishes, sample pneumatic transmission in the sampler bag unit 8 is gone into analytical instrument unit 18, measure exhaust gaseous contaminant (CO, CO respectively
2, NO
X, HC) and the concentration of cleaned air composition, represent with ppm.
Mileage number (km), main Venturi tube (CFV) 4 flow (m according to the chassis dynamometer measurement
3/ min), each exhaust gaseous contaminant (CO, CO
2, NO
X, HC) and the concentration (ppm) of cleaned air composition, and other environmental parameters according to the formula that GB provides, can calculate the discharge capacity (g/km) of each exhaust gaseous contaminant respectively.
For diesel engine automobile, its motor exhaust is to introduce exhaustion dilution hybrid channel 13 through second air cleaner 12, and process subsequently is similar to gasoline automobile, but will increase the sampling and the analysis of particle.
The control mode of full industrial local network has been adopted in the computer control of this device, the signal of all instrument, sensor, analytical instrument all passes through the numerical information that the A/D module converts becomes to follow RS232 agreement or RS-485 bus, and host computer procedure is by the industrial local network visit and control all checkout equipments and executive component.Pressing the professional software of function weaving can be automatically or the manual repertoire of control and management devices, and the user can finish standard testings such as GB, Europe III and beautiful EPA.
Claims (1)
1. the exhaust contaminant measurement mechanism of light-duty vehicle and engine is characterized in that it comprises:
(1) air cleaner that first, second filtered air is used, the clean air sampling outlet of described two air cleaner links to each other by the import of the 9th, ten pipelines and the 3rd sampling pump respectively;
(2) main mixture pipelines, the inlet of this main mixture pipeline is connected with the outlet of described first air cleaner, the outlet of gasoline automobile tail gas respectively, and the sampling that is disposed with first butterfly valve, flow and is 5L/min and 10L/min on the main mixture pipeline is 6m with first, second Venturi tube, thermometer, pressure gauge, flow
3/ min, 9m
3/ min or flow are 12m
3The main Venturi tube of the metering main mixture piping flow of/min, the outlet of this combination gas pipeline links to each other with the inlet of a blower fan, and the outlet and the atmosphere of this blower fan are connected;
(3) dilution tunnels that are disposed with sampling interface and particle sampling outlet on it, the entrance point of this dilution tunnel is connected with second air cleaner and the outlet of diesel engine automobile tail gas, and combination gas filtrator, the described main venturi plumber of control that bulky grain is used in the filtration combination gas makes the temperature control heat exchanger of temperature to described dilution tunnel endpiece, the gas exhaust piping of second butterfly valve is connected with described main mixture pipeline by being equipped with successively on it;
(4) particle sampling units that are used for the particle sampling of described air-fuel mixture enleanment passage, this particle sampling unit comprises and is disposed with adjustable sampling pump on it, the metering pipeline of particle sampling flow measurement controller, the inlet of described metering pipeline, outlet respectively with described air-fuel mixture enleanment passage on particle sampling outlet, the inlet of particle sampling unit is connected, in described particle sampling unit, be provided with three groups of particles that are arranged in parallel and gather the filter paper frame, gather on filter paper frame at described each particle and to lay filter paper, the inlet end that described three groups of particles are gathered the filter paper frame is connected with the inlet of described particle sampling unit and it exports and is connected with atmosphere or is connected with return-air mouth on being arranged on described dilution tunnel;
(5) hot type hydrocarbon measuring instruments, the inlet of this hot type hydrocarbon measuring instrument and the sampling interface that is located at dilution tunnel are connected;
(6) sampler bag unit that are provided with diluted exhaust sampler bag and cleaned air sampler bag, the inlet of this diluted exhaust sampler bag links to each other with first, second sampling delivery side of pump by first, second pipeline that it is provided with first, second operation valve respectively, the inlet of described first, second sampling pump is connected with described main mixture pipeline by the 4th, the 5th pipeline respectively, and described the 3rd sampling delivery side of pump links to each other with described cleaned air sampler bag by the 3rd pipeline that it is provided with the 3rd operation valve;
(7) hot type filtrators, the inlet of this hot type filtrator links to each other with the outlet of a waste pipe on threst stand;
(8) hot type pumps, the inlet of this hot type pump links to each other with the outlet of described hot type filtrator;
(9) analytical instrument unit, described analytical instrument unit comprises the hot type hydrocarbon measuring instrument, the hot type nitrogen-oxide analyzer,, oxygen analyser, carbonyl analyzer and capnograph that its air intake opening links to each other with the outlet of a condenser respectively, the inlet of described condenser, the hot type hydrocarbon measuring instrument, the hot type nitrogen-oxide analyzer,, the inlet of oxygen analyser is respectively arranged with the 4th through on it, the 5th, the 6th operation valve, first, two, the 6th of three aspiration pumps, the 7th, the 8th pipeline and described diluted exhaust sampler bag link to each other respectively with outlet with the cleaned air sampler bag, and perhaps the heat pump of directly adopting in the pipeline by the 11 pipeline and engine exhaust links to each other;
When the signal that (10) computer control units, described computer control unit receive the constituent concentration of each analytical instrument output in described thermometer and manometric temperature and pressure signal, the instrumental analysis unit is measured the engine exhaust pollutant on threst stand acceptance from the power on the threst stand, tach signal to calculate the engine exhaust pollutant discharge amount.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201430030U CN201314914Y (en) | 2008-11-11 | 2008-11-11 | Device for measuring exhaust pollutant from light automobile and engine thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201430030U CN201314914Y (en) | 2008-11-11 | 2008-11-11 | Device for measuring exhaust pollutant from light automobile and engine thereof |
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| CN201314914Y true CN201314914Y (en) | 2009-09-23 |
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| CNU2008201430030U Expired - Fee Related CN201314914Y (en) | 2008-11-11 | 2008-11-11 | Device for measuring exhaust pollutant from light automobile and engine thereof |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062705A (en) * | 2010-10-29 | 2011-05-18 | 北京工业大学 | Combined tail gas collection system for multi-cylinder engine and control method thereof |
| CN102735799A (en) * | 2012-06-19 | 2012-10-17 | 北京雪迪龙科技股份有限公司 | Engine exhaust monitoring system |
| CN103048966A (en) * | 2012-12-17 | 2013-04-17 | 浙江达峰汽车技术有限公司 | Remote control system of automobile exhaust purifier testing equipment |
| CN103134688A (en) * | 2011-11-24 | 2013-06-05 | 北汽福田汽车股份有限公司 | Whole-flow emission testing system and diesel engine testing system |
| CN103175714A (en) * | 2013-03-27 | 2013-06-26 | 昆山市佰奥自动化设备科技有限公司 | Trolley structure for automobile exhaust detection sampling |
| CN103616521A (en) * | 2013-10-21 | 2014-03-05 | 天津世纪动力科技发展有限公司 | Exhaust pollutant measuring system for in-use vehicle |
| CN104034561A (en) * | 2013-03-07 | 2014-09-10 | 株式会社堀场制作所 | Exhaust gas sampling apparatus |
| CN104075911A (en) * | 2013-03-29 | 2014-10-01 | 株式会社堀场制作所 | Exhaust gas sampling apparatus and exhaust gas sampling method |
| CN105277397A (en) * | 2015-11-27 | 2016-01-27 | 堀场仪器（上海）有限公司 | Vehicle tail gas collection device as well as vehicle tail gas detection system and method |
| CN105443368A (en) * | 2015-11-03 | 2016-03-30 | 北京航科发动机控制系统科技有限公司 | Pollution test injection system for pump regulator |
| CN106289805A (en) * | 2016-08-23 | 2017-01-04 | 苏州华业检测技术服务有限公司 | A kind of vehicle exhaust flow measurement control system and detection method |
| CN106896078A (en) * | 2017-02-15 | 2017-06-27 | 武汉启呈环保技术有限公司 | A kind of diesel engine vent gas denitration the escaping of ammonia test device |
| CN108254506A (en) * | 2018-01-18 | 2018-07-06 | 天津世纪动力科技发展有限公司 | A kind of offline exhaust contaminant transient behavior method measuring device of gasoline car |
| CN108572078A (en) * | 2018-06-28 | 2018-09-25 | 无锡沃尔福汽车技术有限公司 | A full-flow exhaust gas dilution system with dual engine benches |
| CN114216687A (en) * | 2020-12-04 | 2022-03-22 | 襄阳达安汽车检测中心有限公司 | Device and method for national VI emission certification of automobile engine |
| CN114964790A (en) * | 2022-06-02 | 2022-08-30 | 重庆磐谷动力技术有限公司 | Movable engine test control cabinet |
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- 2008-11-11 CN CNU2008201430030U patent/CN201314914Y/en not_active Expired - Fee Related
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| CN102062705B (en) * | 2010-10-29 | 2012-08-15 | 北京工业大学 | Combined tail gas collection system for multi-cylinder engine and control method thereof |
| CN102062705A (en) * | 2010-10-29 | 2011-05-18 | 北京工业大学 | Combined tail gas collection system for multi-cylinder engine and control method thereof |
| CN103134688A (en) * | 2011-11-24 | 2013-06-05 | 北汽福田汽车股份有限公司 | Whole-flow emission testing system and diesel engine testing system |
| CN103134688B (en) * | 2011-11-24 | 2016-03-16 | 北汽福田汽车股份有限公司 | Full stream emission testing system and diesel motor pilot system |
| CN102735799B (en) * | 2012-06-19 | 2015-11-04 | 北京雪迪龙科技股份有限公司 | A kind of motor exhaust monitoring system |
| CN102735799A (en) * | 2012-06-19 | 2012-10-17 | 北京雪迪龙科技股份有限公司 | Engine exhaust monitoring system |
| CN103048966A (en) * | 2012-12-17 | 2013-04-17 | 浙江达峰汽车技术有限公司 | Remote control system of automobile exhaust purifier testing equipment |
| CN104034561A (en) * | 2013-03-07 | 2014-09-10 | 株式会社堀场制作所 | Exhaust gas sampling apparatus |
| CN104034561B (en) * | 2013-03-07 | 2018-01-09 | 株式会社堀场制作所 | Exhaust gas sampling device |
| CN103175714A (en) * | 2013-03-27 | 2013-06-26 | 昆山市佰奥自动化设备科技有限公司 | Trolley structure for automobile exhaust detection sampling |
| CN104075911A (en) * | 2013-03-29 | 2014-10-01 | 株式会社堀场制作所 | Exhaust gas sampling apparatus and exhaust gas sampling method |
| CN104075911B (en) * | 2013-03-29 | 2018-11-06 | 株式会社堀场制作所 | Gas-exhausting sampling device and exhaust gas sampling method |
| CN103616521A (en) * | 2013-10-21 | 2014-03-05 | 天津世纪动力科技发展有限公司 | Exhaust pollutant measuring system for in-use vehicle |
| CN105443368B (en) * | 2015-11-03 | 2017-09-29 | 中国航发北京航科发动机控制系统科技有限公司 | A kind of pump control mechanism test for contamination injected system |
| CN105443368A (en) * | 2015-11-03 | 2016-03-30 | 北京航科发动机控制系统科技有限公司 | Pollution test injection system for pump regulator |
| CN105277397A (en) * | 2015-11-27 | 2016-01-27 | 堀场仪器（上海）有限公司 | Vehicle tail gas collection device as well as vehicle tail gas detection system and method |
| CN106289805A (en) * | 2016-08-23 | 2017-01-04 | 苏州华业检测技术服务有限公司 | A kind of vehicle exhaust flow measurement control system and detection method |
| CN106896078A (en) * | 2017-02-15 | 2017-06-27 | 武汉启呈环保技术有限公司 | A kind of diesel engine vent gas denitration the escaping of ammonia test device |
| CN108254506A (en) * | 2018-01-18 | 2018-07-06 | 天津世纪动力科技发展有限公司 | A kind of offline exhaust contaminant transient behavior method measuring device of gasoline car |
| CN108572078A (en) * | 2018-06-28 | 2018-09-25 | 无锡沃尔福汽车技术有限公司 | A full-flow exhaust gas dilution system with dual engine benches |
| CN114216687A (en) * | 2020-12-04 | 2022-03-22 | 襄阳达安汽车检测中心有限公司 | Device and method for national VI emission certification of automobile engine |
| CN114216687B (en) * | 2020-12-04 | 2022-11-04 | 襄阳达安汽车检测中心有限公司 | Device and method for national VI emission certification of automobile engine |
| CN114964790A (en) * | 2022-06-02 | 2022-08-30 | 重庆磐谷动力技术有限公司 | Movable engine test control cabinet |
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