CN205117468U - Novel external diesel engine for automobile particulate matter discharges diagnosis device - Google Patents
Novel external diesel engine for automobile particulate matter discharges diagnosis device Download PDFInfo
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- CN205117468U CN205117468U CN201520942693.6U CN201520942693U CN205117468U CN 205117468 U CN205117468 U CN 205117468U CN 201520942693 U CN201520942693 U CN 201520942693U CN 205117468 U CN205117468 U CN 205117468U
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- pipe
- diesel engine
- ionized region
- particulate matter
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
The utility model discloses a novel external diesel engine for automobile particulate matter discharges diagnosis device, include the control unit (DCU) and the sensor unit who is connected with DCU, sensor unit is used for gathering the current value, and it includes the ionization utmost point and signal extremely, the ionization pole piece divides the parcel to have the ceramic pipe of nai high temperature insulation, the ceramic pipe of nai high temperature insulation part parcel has insulating seal to glue and has ordinary insulating ceramic pipe with the part parcel, ordinary ceramic pipe, the ionization utmost point and shield shell constitute the ionized region, the ionized region communicates with each other through ionized region entry and sampling channel, communicates with each other with the atmosphere through atmosphere communicating hole, the sampling channel communicates with each other with the blast pipe through the exhaust thief hatch. The utility model discloses avoided the influence of the adverse circumstances in the diesel engine blast pipe, simple structure, precision height, measuring range is big, can effectively diagnose and measure the particulate matter emission.
Description
Technical field
The utility model relates to the granular material discharged pollution control technology field of diesel motor exhaust, particularly relates to the granular material discharged diagnosis apparatus of a kind of Novel external diesel engine for automobile.
Background technique
Diesel engine has the features such as excellent power performance and the economy performance because of it and is used widely, but its tail gas pollution problem caused is day by day serious.The major pollutants of diesel emission have 2 kinds: nitrogen oxide (NOX) and particulate matter (PM).The particulate matter of diesel emission is the significant contributor of Particulate Pollution thing in atmosphere environment.Not only cause atmospheric pollution, but also because carcinogen can be sucked in a large number, health is worked the mischief.For this reason, various countries have all formulated strict Abgasgesetz, to limit the discharge of particulate matter.
At present, for the discharge of reduction diesel particulate, two kinds of modes are had: emission controls by improving combustion and external purification.Emission controls by improving combustion is the discharge realizing reducing diesel particulate by technology such as adjustment oil injection time, multi-injection etc. in engine combustion process; External purification utilizes the diesel particulate catcher (DieselParticulateFilter, DPF) be connected on outlet pipe to collect the particulate matter in being vented.No matter be emission controls by improving combustion or external purification (DPF after-treatment system), all need the granular material discharged numerical value of Diagnosis of Diesel whether to reach the emission standard of respective stage.
At present, the granular material discharged diagnostic form of research both at home and abroad has: electrochemical method, particulate matter thermophoresis characteristic and resistance characteristic, particulate matter optical characteristics etc.And the sampling of all devices and measure portion are all be directly installed in outlet pipe substantially, innerly usually adopt Venturi principle to form gas-particle flow to move.But the actual environment of Diesel Engine Exhaust Pipe is that temperature is high, flow velocity large, particle size tiny (major part is 20 ~ 30 ran), and be almost turbulent flow, particulate matter motion is very complicated.Therefore, measuring range can be caused little, and precision is low.
Therefore, in order to the discharge that the rugged environment in Diesel Engine Exhaust Pipe and efficient diagnosis can be avoided to measure particulate matter, need to take the granular material discharged diagnosis apparatus of a kind of Novel external diesel engine for automobile.
Summary of the invention
The purpose of this utility model is the technological deficiency for existing in prior art, and provides a kind of Novel external diesel engine for automobile granular material discharged diagnosis apparatus.
For realizing the purpose of this utility model, the technological scheme that the utility model adopts is: the granular material discharged diagnosis apparatus of a kind of Novel external diesel engine for automobile, the sensor unit comprising control unit (DCU) and be connected with DCU, described sensor unit is for gathering current value, it comprises ionization pole and pickup electrode, described ionization pole portion envelops has high-temperature insulation stoneware pipe, described high-temperature insulation stoneware pipe portion envelops has electric insulating sealant and portion envelops to have common insulating ceramics pipe, described conventional ceramic pipe, ionization pole and earth shield shell form ionized region, described ionized region is communicated with sampling channel by ionized region entrance, the hole communicated by air is communicated with air, described sampling channel is communicated with outlet pipe by exhaust thief hatch.
Wherein, described ionization pole built-in thermoelectric resistance and the even thermometric line of K.
Compared with prior art, the beneficial effects of the utility model are: the impact avoiding the rugged environment in Diesel Engine Exhaust Pipe, and structure is simple, precision is high, and measuring range is large, can measure granular material discharged by efficient diagnosis, automatically can also mark zero point and automatically cleaning in addition.
Accompanying drawing explanation
Figure 1 shows that the utility model structural representation;
Figure 2 shows that the utility model sensor unit structure schematic diagram;
In figure: 1-ionization pole, 2-high-temperature insulation stoneware pipe, 3-pickup electrode, 4-electric insulating sealant, the common insulating ceramics pipe of 5-, 6-earth shield shell, 7-is vented thief hatch, 8-sampling channel, the hole that 9-air communicates, 10-ionized region, 11-ionized region entrance, 12-outlet pipe, 13-control unit (DCU).
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Should be noted that, " connection " described in the application and the word for expressing " connection ", as " being connected ", " being connected " etc., it both can refer to a certain parts with another parts and directly be connected, and also can refer to a certain parts and was connected with another parts by miscellaneous part.
As Fig. 1, shown in Fig. 2, the utility model embodiments provides the granular material discharged diagnosis apparatus of a kind of Novel external diesel engine for automobile, the sensor unit comprising control unit (DCU) 13 and be connected with DCU, described sensor unit is for gathering current value, it comprises ionization pole 1 and pickup electrode 3, described ionization pole portion envelops has high-temperature insulation stoneware pipe 2, described high-temperature insulation stoneware pipe 2 portion envelops has electric insulating sealant 4 and portion envelops to have common insulating ceramics pipe 5, described conventional ceramic pipe 5, ionization pole 1 and earth shield shell 6 form ionized region 10, described ionized region 10 is communicated with sampling channel 8 by ionized region entrance 11, the hole 9 communicated by air is communicated with air, described sampling channel 8 is communicated with outlet pipe 12 by exhaust thief hatch 7.
During use, under the pressure difference effect of engine exhaust between outlet pipe 12 with ambient air (hole 9 that air communicates), enter sampling channel 8 by the exhaust thief hatch 7 of measuring device; Particulate matter in exhaust flow velocity in passage reduces gradually, utilizes the interaction of particulate matter-particulate matter and particulate matter-collide with sampling channel 8 inwall of ground connection simultaneously, makes it self-contained electric charge and eliminate; Then particulate matter enters the electrostatic ionized region 10 of measuring device by ionized region entrance 9 and charged, thus static discharge current is reduced, the current value of this reduction is gathered by ECU (Electrical Control Unit) (DCU) 13 by pickup electrode 3, then it is inquired about corresponding particle concentration value to the ratio of initial drain and export in the MAP of having demarcated.
In a preferred embodiment, described ionization pole 1 built-in thermoelectric resistance and the even thermometric line of K.
After measuring device work certain hour, its ionization pole 1 and pickup electrode 3 can deposit one deck particulate matter, in order to ensure measuring accuracy and normal work, the thermal resistor electrified regulation that ionization pole 3 is built-in, temperature is monitored by the even thermometric line of K can reach 600-800 degree, Deposited particulate matter is made to be oxidized to carbon dioxide by heat conduction and thermal radiation, the self-cleaning function of implement device.
In a preferred embodiment, before each diesel-oil vehicle starts, measuring device, because communicating in real time with ambient air (hole 9 that air communicates), can realize without the zero point calibration function under exhaust particulate condition that (initial drain ensures that measured value effectively and stable accuracy.
The above is only preferred implementation of the present utility model; it should be noted that; for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (2)
1. the granular material discharged diagnosis apparatus of Novel external diesel engine for automobile, it is characterized in that, the sensor unit comprising control unit (DCU) and be connected with DCU, described sensor unit is for gathering current value, it comprises ionization pole and pickup electrode, described ionization pole portion envelops has high-temperature insulation stoneware pipe, described high-temperature insulation stoneware pipe portion envelops has electric insulating sealant and portion envelops to have common insulating ceramics pipe, described conventional ceramic pipe, ionization pole and earth shield shell form ionized region, described ionized region is communicated with sampling channel by ionized region entrance, the hole communicated by air is communicated with air, described sampling channel is communicated with outlet pipe by exhaust thief hatch.
2. the granular material discharged diagnosis apparatus of Novel external diesel engine for automobile according to claim 1, is characterized in that, described ionization pole built-in thermoelectric resistance and the even thermometric line of K.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520942693.6U CN205117468U (en) | 2015-11-23 | 2015-11-23 | Novel external diesel engine for automobile particulate matter discharges diagnosis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520942693.6U CN205117468U (en) | 2015-11-23 | 2015-11-23 | Novel external diesel engine for automobile particulate matter discharges diagnosis device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205117468U true CN205117468U (en) | 2016-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520942693.6U Expired - Fee Related CN205117468U (en) | 2015-11-23 | 2015-11-23 | Novel external diesel engine for automobile particulate matter discharges diagnosis device |
Country Status (1)
| Country | Link |
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| CN (1) | CN205117468U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298608A (en) * | 2015-11-23 | 2016-02-03 | 中国人民解放军军事交通学院 | Diagnostic method and device for particulate matter discharging for novel external automotive diesel engine |
| CN111537412A (en) * | 2020-05-08 | 2020-08-14 | 重庆超力高科技股份有限公司 | Emission monitoring device, system and method |
-
2015
- 2015-11-23 CN CN201520942693.6U patent/CN205117468U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298608A (en) * | 2015-11-23 | 2016-02-03 | 中国人民解放军军事交通学院 | Diagnostic method and device for particulate matter discharging for novel external automotive diesel engine |
| CN111537412A (en) * | 2020-05-08 | 2020-08-14 | 重庆超力高科技股份有限公司 | Emission monitoring device, system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Hongtao Inventor after: Yu Weiming Inventor after: Pang Hailong Inventor after: Zi Xinyun Inventor after: Deng Chenglin Inventor after: Yao Guangtao Inventor after: Xu Zhengfei Inventor after: Yu Yan Inventor after: Zhang Weifeng Inventor after: Zhang Yingfeng Inventor before: Pang Hailong Inventor before: Yu Weiming Inventor before: Zi Xinyun Inventor before: Deng Chenglin Inventor before: Yao Guangtao Inventor before: Xu Zhengfei Inventor before: Yu Yan Inventor before: Zhang Weifeng Inventor before: Zhang Yingfeng Inventor before: Wang Hongtao |
|
| COR | Change of bibliographic data | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 Termination date: 20171123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |