CN1680689A - Electric heater of exhausting purifier for IC engine - Google Patents
Electric heater of exhausting purifier for IC engine Download PDFInfo
- Publication number
- CN1680689A CN1680689A CNA2004100299749A CN200410029974A CN1680689A CN 1680689 A CN1680689 A CN 1680689A CN A2004100299749 A CNA2004100299749 A CN A2004100299749A CN 200410029974 A CN200410029974 A CN 200410029974A CN 1680689 A CN1680689 A CN 1680689A
- Authority
- CN
- China
- Prior art keywords
- electric heater
- shell
- heater
- metal tape
- metal
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Processes For Solid Components From Exhaust (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
This invention is an electric heater for the exhaust cleaning of internal-combustion engine. The power to the heater is the power on the car. The heater could quickly increase the temperature of particles collector or catalytic cleanser and of long life time. The heater comprises a bar electrode, a metal beehive body, a shell and shell electrode. The four parts are welded together. The metal beehive is made by a metal (Fe-Cr-Al stainless steel) belt wrapped to a center electrode. The metal belt is a flat foil and a crinkle foil welded together. Between the belts have insulation materials. The heater's electric resistance could be adjusted by the thickness, length, width and number of the belt for an expected power.
Description
Technical field
The present invention relates to a kind of electric heater that is used for exhaust gas purifier for internal combustion engine.
Technical background
Purification of IC Exhaustive Gas comprises that diesel exhaust gas purifies and the petrol engine exhaust gas purification, contained particulate matter is the pollutant of emphasis control in the diesel exhaust gas, generally be that particulate filter (Diesel Particulate Filter is installed in the diesel exhaust gas pipeline, hereinafter to be referred as DPF), capture the particulate matter in the exhaust, realize exhaust gas purification.When the particulate matter accumulating amount acquires a certain degree on the filter, will influence the engine running performance, regularly burn the particulate matter of piling up on the filter, can recover its strainability.The particulate matter kindling temperature can be reduced to 400-450 ℃ at 550-600 ℃ under the effect of catalyzer.But the delivery temperature of most diesel oil machine, particularly LD-diesel is lower than this temperature.Improve delivery temperature by electric heater is installed, can make the particulate matter burning of capture, realize filter regeneration.Domesticly reported a kind of metal mesh shaped electric heater that is used for particulate matter burning, this electric heating is positioned at the upstream side and the downstream side of ceramic fiber filter.But above-mentioned metal net shaped heater is unwell to and is used for wall-flow type amplifier case and foam filter.
The operating temperature of petrol engine exhaust catalyst is generally about 300-500 ℃, and when delivery temperature was low, the pollutant transformation efficiency was low or can not transform.For example, when engine cold-start, the pollutant that produces in preceding two minutes of engine running accounts for the about 80% of engine emission pollutant, because the low catalytic converter cisco unity malfunction of delivery temperature is directly discharged above-mentioned pollutant, causes pollution of atmosphere.If an electric heater is set the exhaust of engine cold-start period is heated at the catalyzer upstream side, be elevated to the operating temperature of catalyzer at exhaust system temperature after, catalytic converter can be in normal operative condition, effectively conversion pollutant.Domestic having appeared in the newspapers has electric heating bar type and resistance wire formula electric heater.Above-mentioned heater is inhomogeneous to the air-flow heating, and electrical bar and resistance wire heating element intensity and life-span are limited simultaneously.
Summary of the invention:
The objective of the invention is in order to overcome exhaust gas purifier for internal combustion engine existing the problems referred to above with heater, a kind of novel electric heater that is used for exhaust gas purifier for internal combustion engine is provided, this novel electric heater uses vehicle power, it is a kind of compact structure, the intensity long-life is long, heating evenly can improve the metallic honeycomb bodies electric heater of delivery temperature rapidly.When this metal beehive body heater and diesel engine particulate thing filter are used, can improve the temperature of filter rapidly, make the particulate matter rapid combustion that has captured, real filter regeneration; When being used, can improve the temperature of catalyzer rapidly, the transformation efficiency of pollutant when improving engine cold-start with the automobile exhaust three-way catalyst.In addition, the metal beehive heating unit also can be simultaneously as exhaust catalytic purification agent matrix, supported catalyst in its surface, but constitute an electric heating catalyzer (Electrically HeatableCatalyst).
The present invention relates to a kind of electric heater that is used for exhaust gas purifier for internal combustion engine.This heater is made of bar-shaped centre electrode, metallic honeycomb bodies, shell and bar-shaped shell electrode.
Bar-shaped centre electrode is made by stainless steel;
Metallic honeycomb bodies is to be made for center of circle coiled coil with the centre electrode by metal tape, has bigger interior surface area and is beneficial to dispersing of heat.Every strip metal band comprises flat paillon foil and corrugated foil, and material is the Fe-Cr-Al stainless steel of high temperature resistant, corrosion-resistant and high conductivity, adopts between two paillon foils to be welded to connect, and the welding part can be whole Line of contact or the equally spaced part Line of contact between two paillon foils.The number of thickness, length, width and metal tape that can be by adjusting paillon foil changes the resistance of heater, thereby obtains the heating power of expection.Form dielectric film by surface treatment at surfaces of metallic strip, when needing metallic honeycomb bodies to have the function of catalyst matrix simultaneously, can apply the catalytic activity composition at surfaces of metallic strip;
Shell is a stainless steel cylinder, and the tight bundle of these parts makes its one-tenth discoid in the periphery of metallic honeycomb bodies;
Bar-shaped shell electrode is made by stainless steel.
Above-mentioned each parts are welded to connect, and the solder joint place has excellent conducting performance.When power supply, lead and electric heater formed the loop, metallic honeycomb bodies was rapidly heated, and the heat of generation passes to catalyzer or the filter that is positioned at its downstream by the mode of convection current and radiation, improves its temperature.
Description of drawings:
The schematic representation of Fig. 1 electric heater of the present invention.
Fig. 2 metallic strip structures schematic representation
Fig. 3 metallic honeycomb bodies and centre electrode combination schematic representation
Fig. 4 comprises the diesel engine particulate thing filtrating equipment sectional drawing of electric heater of the present invention
Embodiment:
Below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated.
As shown in Figure 1, metal beehive electric heater 10 is made of bar-shaped centre electrode 11, the metallic honeycomb bodies 12 that coils twist in the centre electrode periphery, shell 13 and shell electrode 14.
As shown in Figure 2, the fundamental structural unit metal tape 20 of metallic honeycomb bodies comprises a corrugated foil 21a and a flat paillon foil 21b, relies on solder joint 22 to engage (all the other solder joints are not shown) between the two.The metal foil material is high temperature resistant, corrosion resistant Fe-Cr-Al stainless steel, and wherein the content of aluminium is greater than 5%.Corrugated foil 1 peaceful paillon foil 2 width, length is identical and the thickness difference, and the ratio of thickness equals the spread length and the flat paillon foil length ratio of corrugated foil.Each bar Line of contact between two paillon foils is carried out the soldering welding.In order to guarantee mutually insulated between the metal, under high temperature condition, make its surface form patina.
As shown in Figure 3,11 is centre electrode, and 20 is metal tape.The metal tape and the centre electrode of several equal length are welded together, and what a long limit of metal tape was opposite with the electrode band nose end one holds level with both hands together.Then metal tape is packed into behind centre electrode helical disk coiled horizontal plate shape in the shell, the height of shell is identical with the width of metal tape, then the contacting part of each metal tape free end and shell is welded with soldering.In the shell outside by the substantially horizontal shell electrode of burn-oning.
An electric heater of making by above-mentioned mode of execution is carried out performance to be tested.This electric heater has following parameter: the material of tinsel is the Fe-Cr-Al stainless steel, and wherein Al content 5.75%, and the paillon foil width is 22.5mm, flat foil thickness 50 μ m, corrugated foil thickness 70 μ m.Metallic honeycomb bodies comprises 6 metal tapes parallel with one another.Electric heater design heating power 2Kw.
As shown in Figure 4, diesel exhaust gas purifying device 40 is by above-mentioned metal beehive heater 10, the filter (DPF) 41 in heater 10 downstream sides, and received the metal outer cylinder 42 of electric heater 10 and filter 41 and constitute.Heater center electrode band nose end passes insulator 44 and stretches out urceolus 42 along the metal bar 43 that the heater radial direction connects, and shell electrode 14 directly stretches out urceolus 42 via insulator 45.Power supply (vehicular power-bottle, 12V) 11 1 utmost points (for example anodal) link to each other with metal bar 43 by switch 46, and another utmost point (for example negative pole) links to each other with shell electrode 14, constitutes heater circuit.After connecting power supply, the heat that electric heater 10 produces improves the temperature of downstream side filter 41 rapidly by convection current and radiation.
Replace the original catalytic cleaner of Jetta diesel-powered car with diesel exhaust gas purifying device shown in Figure 4, carry out the electric heating experiment.The filter of using 41 is the wall flow type ceramic honeycomb ceramics, two minutes heating times, the voltage change of temperature T and vehicular power-bottle in the mensuration filter.The result shows that the filter temperature is more than 650 ℃, and the battery voltage loss is lower than 0.5V.
Under common urban road operating conditions, use the Jetta diesel-powered car that diesel exhaust gas purifying device shown in Figure 4 is housed, to examining the working life of electric heater.After heating 130 times, electric heater is proper functioning still, does not find scorification, ruptures, opens circuit or phenomenon such as short circuit.
Claims (5)
1, a kind of electric heater that is used for exhaust gas purifier for internal combustion engine is characterized in that: this electric heater can use vehicle power that I. C. engine exhaust catalytic cleaner or particulate matter catcher are heated.
2, electric heater according to claim 1 is characterized in that: electric heater is made of bar-shaped centre electrode, metallic honeycomb bodies, shell and shell electrode.
3, according to claim 1 and 2 described a kind of electric heaters, it is characterized in that: the material of making metallic honeycomb bodies be high temperature resistant, corrosion-resistant and Al content greater than 5% Fe-Cr-Al stainless steel.Metallic honeycomb bodies comprises one or more metal tape, and every strip metal band comprises flat paillon foil and corrugated foil, and the thickness of flat paillon foil and corrugated foil is different, and the thickness ratio equals the ratio of its spread length.Weld with laser beam welding or soldering between two.Insulation processing will be carried out in the surface of metal tape, can the employing method comprise growth patina or coated with ceramic film.
4, according to claim 1 and 2 described a kind of electric heaters, it is characterized in that: centre electrode is a stainless steel bar.Aliging with the centre electrode lower end in metal tape one long limit, is welded on the centre electrode evenly and at intervals.
5, according to claim 1 and 2 described a kind of electric heaters, it is characterized in that: the electric heater shell is a stainless steel, and height is identical with the width of metal tape, the inwall soldering welding of the free end of each metal tape and shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100299749A CN1680689A (en) | 2004-04-08 | 2004-04-08 | Electric heater of exhausting purifier for IC engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100299749A CN1680689A (en) | 2004-04-08 | 2004-04-08 | Electric heater of exhausting purifier for IC engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1680689A true CN1680689A (en) | 2005-10-12 |
Family
ID=35067401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100299749A Pending CN1680689A (en) | 2004-04-08 | 2004-04-08 | Electric heater of exhausting purifier for IC engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1680689A (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102414409A (en) * | 2009-04-22 | 2012-04-11 | 排放技术有限公司 | Honeycomb body heatable in multiple stages |
| CN102628389A (en) * | 2012-05-14 | 2012-08-08 | 无锡威孚力达催化净化器有限责任公司 | Electric energy heating carbon particle combustion device |
| CN102628388A (en) * | 2012-05-14 | 2012-08-08 | 无锡威孚力达催化净化器有限责任公司 | Heater of electric energy heating carbon particle combustion device |
| CN101725425B (en) * | 2008-10-30 | 2013-02-27 | 通用汽车环球科技运作公司 | System and method for determining the oxygen sensor heater resistance |
| CN103347611A (en) * | 2011-02-10 | 2013-10-09 | 丰田自动车株式会社 | Electric heating catalyst |
| CN103347610A (en) * | 2011-02-08 | 2013-10-09 | 丰田自动车株式会社 | Electric heating catalyst |
| CN103442788A (en) * | 2011-03-09 | 2013-12-11 | 丰田自动车株式会社 | Electrically heated catalyst |
| CN103917752A (en) * | 2011-11-02 | 2014-07-09 | 丰田自动车株式会社 | Device for controlling electrically heated catalyst |
| CN103967563A (en) * | 2013-01-31 | 2014-08-06 | 本田技研工业株式会社 | Exhaust gas purifying catalytic apparatus for small-sized internal combustion engine |
| CN104364483B (en) * | 2012-04-05 | 2016-11-23 | 排放技术有限公司 | Electrical connection of a plurality of sheet metal layers of an electrically heatable honeycomb body and corresponding honeycomb body |
| CN104395576B (en) * | 2012-03-30 | 2017-07-18 | 日本碍子株式会社 | The heating method of honeycomb structured body |
| CN108661762A (en) * | 2018-05-09 | 2018-10-16 | 单利 | It can be used for electrically heated metallic carrier and preparation method thereof |
| CN111686822A (en) * | 2019-03-15 | 2020-09-22 | 日本碍子株式会社 | Electric heating carrier, exhaust gas purification device, method for producing electric heating carrier, joined body, and method for producing joined body |
| CN111691952A (en) * | 2019-03-15 | 2020-09-22 | 日本碍子株式会社 | Electric heating carrier, exhaust gas purifying device, and method for manufacturing electric heating carrier |
| WO2021104936A1 (en) * | 2019-11-27 | 2021-06-03 | Vitesco Technologies GmbH | Exhaust gas aftertreatment device |
| CN114087052A (en) * | 2021-11-13 | 2022-02-25 | 艾蓝腾新材料科技(上海)有限公司 | Electric heating catalytic device applied to engine tail gas treatment |
| CN116133745A (en) * | 2020-07-20 | 2023-05-16 | 株式会社 科特拉 | Exhaust gas purifying catalyst system |
-
2004
- 2004-04-08 CN CNA2004100299749A patent/CN1680689A/en active Pending
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725425B (en) * | 2008-10-30 | 2013-02-27 | 通用汽车环球科技运作公司 | System and method for determining the oxygen sensor heater resistance |
| CN102414409A (en) * | 2009-04-22 | 2012-04-11 | 排放技术有限公司 | Honeycomb body heatable in multiple stages |
| CN102414409B (en) * | 2009-04-22 | 2014-06-25 | 排放技术有限公司 | Honeycomb body heatable in multiple stages |
| CN103347610A (en) * | 2011-02-08 | 2013-10-09 | 丰田自动车株式会社 | Electric heating catalyst |
| CN103347610B (en) * | 2011-02-08 | 2015-04-08 | 丰田自动车株式会社 | Electric heating catalyst |
| CN103347611A (en) * | 2011-02-10 | 2013-10-09 | 丰田自动车株式会社 | Electric heating catalyst |
| CN103347611B (en) * | 2011-02-10 | 2016-01-20 | 丰田自动车株式会社 | Electrical heating type catalyst |
| CN103442788B (en) * | 2011-03-09 | 2015-08-19 | 丰田自动车株式会社 | Electrical heating catalyst |
| CN103442788A (en) * | 2011-03-09 | 2013-12-11 | 丰田自动车株式会社 | Electrically heated catalyst |
| CN103917752A (en) * | 2011-11-02 | 2014-07-09 | 丰田自动车株式会社 | Device for controlling electrically heated catalyst |
| CN104395576B (en) * | 2012-03-30 | 2017-07-18 | 日本碍子株式会社 | The heating method of honeycomb structured body |
| CN104364483B (en) * | 2012-04-05 | 2016-11-23 | 排放技术有限公司 | Electrical connection of a plurality of sheet metal layers of an electrically heatable honeycomb body and corresponding honeycomb body |
| CN102628389B (en) * | 2012-05-14 | 2013-12-04 | 无锡威孚力达催化净化器有限责任公司 | Electric energy heating carbon particle combustion device |
| CN102628388A (en) * | 2012-05-14 | 2012-08-08 | 无锡威孚力达催化净化器有限责任公司 | Heater of electric energy heating carbon particle combustion device |
| CN102628389A (en) * | 2012-05-14 | 2012-08-08 | 无锡威孚力达催化净化器有限责任公司 | Electric energy heating carbon particle combustion device |
| CN103967563A (en) * | 2013-01-31 | 2014-08-06 | 本田技研工业株式会社 | Exhaust gas purifying catalytic apparatus for small-sized internal combustion engine |
| CN108661762B (en) * | 2018-05-09 | 2021-04-09 | 单利 | Metal carrier capable of being used for electric heating and manufacturing method thereof |
| CN108661762A (en) * | 2018-05-09 | 2018-10-16 | 单利 | It can be used for electrically heated metallic carrier and preparation method thereof |
| CN111686822A (en) * | 2019-03-15 | 2020-09-22 | 日本碍子株式会社 | Electric heating carrier, exhaust gas purification device, method for producing electric heating carrier, joined body, and method for producing joined body |
| CN111691952A (en) * | 2019-03-15 | 2020-09-22 | 日本碍子株式会社 | Electric heating carrier, exhaust gas purifying device, and method for manufacturing electric heating carrier |
| CN111691952B (en) * | 2019-03-15 | 2023-07-14 | 日本碍子株式会社 | Electric heating type carrier, exhaust gas purifying device, and method for manufacturing electric heating type carrier |
| WO2021104936A1 (en) * | 2019-11-27 | 2021-06-03 | Vitesco Technologies GmbH | Exhaust gas aftertreatment device |
| CN114761677A (en) * | 2019-11-27 | 2022-07-15 | 纬湃技术有限公司 | Exhaust gas aftertreatment device |
| US11802501B2 (en) | 2019-11-27 | 2023-10-31 | Vitesco Technologies GmbH | Exhaust gas aftertreatment device |
| CN116133745A (en) * | 2020-07-20 | 2023-05-16 | 株式会社 科特拉 | Exhaust gas purifying catalyst system |
| CN114087052A (en) * | 2021-11-13 | 2022-02-25 | 艾蓝腾新材料科技(上海)有限公司 | Electric heating catalytic device applied to engine tail gas treatment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1680689A (en) | Electric heater of exhausting purifier for IC engine | |
| CN101315039B (en) | Electrically heated dpf/scr 2-way system | |
| US7010910B2 (en) | Exhaust gas purification apparatus | |
| JP4236724B2 (en) | Metal filter for diesel engine | |
| KR101435570B1 (en) | Device for filtering exhaust gas | |
| CN215521021U (en) | Diesel engine tail gas purification device | |
| CN201027560Y (en) | Diesel engine vent gas particle trapping and regenerating system | |
| US5782941A (en) | Particulate trap for diesel engine | |
| CN102071991B (en) | Electrothermic type diesel engine exhaust gas grain catcher | |
| JP2004510908A (en) | Gas flow processing procedures and devices | |
| US5938802A (en) | Exhaust gas purifier | |
| CN100356041C (en) | Carbon black filtering and electric direct-heating type regeneration device for diesel truck | |
| Bach et al. | Combination of different regeneration methods for diesel particulate traps | |
| CN201953448U (en) | Electrothermal diesel engine tail gas particle catcher | |
| KR100712309B1 (en) | Vehicle Exhaust aftertreatment using catalytic coated electric heater | |
| CN204783181U (en) | Plasma tail gas purifier | |
| CN210195849U (en) | DPF electric heating active regeneration device for tractor | |
| JP2004293416A (en) | Exhaust emission control method of internal combustion engine and its device | |
| JPH08151919A (en) | Particulated trap for diesel engine | |
| CN2257860Y (en) | Metal carrier automotive tail gas purifying silencer | |
| JP3230799B2 (en) | Exhaust gas purification equipment for diesel engines | |
| JP2014218916A (en) | Hybrid engine and its control method | |
| CN203547849U (en) | Exhaust and noise reduction purifier of diesel oil engine | |
| WO2009090447A1 (en) | Device designed to reduce atmospheric pollution from exhaust gases | |
| US12116918B2 (en) | Exhaust system and components thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |