EP3738406A1 - Heizelement - Google Patents
HeizelementInfo
- Publication number
- EP3738406A1 EP3738406A1 EP19700268.6A EP19700268A EP3738406A1 EP 3738406 A1 EP3738406 A1 EP 3738406A1 EP 19700268 A EP19700268 A EP 19700268A EP 3738406 A1 EP3738406 A1 EP 3738406A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heating element
- region
- end region
- unheated
- component
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/42—Heating elements having the shape of rods or tubes non-flexible
- H05B3/44—Heating elements having the shape of rods or tubes non-flexible heating conductor arranged within rods or tubes of insulating material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/027—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using electric or magnetic heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
- F01N3/2807—Metal other than sintered metal
- F01N3/281—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features
- F01N13/16—Selection of particular materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/16—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being an electric heater, i.e. a resistance heater
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion
- F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
- F01N3/2013—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/022—Heaters specially adapted for heating gaseous material
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/022—Heaters specially adapted for heating gaseous material
- H05B2203/024—Heaters using beehive flow through structures
-
- 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
- Y02T10/12—Improving ICE efficiencies
Definitions
- the invention relates to a heating element for heating a component for exhaust aftertreatment taking advantage of the ohmic resistance, wherein the heating element has an unheated Endbe rich, and a heated end portion, wherein the two end portions are separated by an intermediate region.
- heating components for exhaust aftertreatment current-carrying conductors which generate heat by utilizing the ohmic resistance.
- so-called heating cartridges are known, which are often cylindrical in shape and have inside a current-carrying conductor.
- a disadvantage of the heating cartridges known in the prior art is in particular that the heat dissipation takes place undifferentiated and thus not only the desired areas are heated in the components for exhaust aftertreatment. This increases the losses, making heating inefficient. Heat losses incurred in particular by the heating of the housing of the component for exhaust aftertreatment and by the heating of the housing parts of the heating element.
- a heating element which allows a targeted heating of a component for exhaust aftertreatment and thus helps to minimize the heat losses.
- the object with regard to the heating element is achieved by a heating element having the features of claim 1.
- An embodiment of the invention relates to a heating element for heating a component for exhaust aftertreatment using the ohmic resistance, wherein the heating element has an unheated end region, and a heated end region, wherein the two end regions are separated by an intermediate region, wherein the intermediate region of a thermally insulating material is formed to minimize heat flow from the heated end region to the unheated end region.
- the thermally insulating intermediate region serves to minimize the heat flow from the heated end region to the unheated end region and particularly advantageously completely suppress it. This is to prevent that the heat generated by the heating element flows unused to the unheated side of the heating element and is radiated from there into the environment or unwanted surrounding components heated.
- These surrounding components may include, for example, the housing of a honeycomb body in which the heating element is inserted.
- the heating element radiates the heat generated by it directly and exclusively into the structure to be heated, for example the honeycomb body. In this way unwanted heat losses are avoided and thus the heating of the structures to be heated becomes more efficient.
- the heating element may comprise a housing in which the thermally insulating material is arranged.
- the heating element in the intermediate region can also be made completely from the thermally insulating material.
- the thermally insulating region is formed from a ceramic material, such as, for example, Al 2 O 3 .
- a ceramic is advantageous as this is easy on the particular shape requirements can be adjusted and a very good thermal insulation can be achieved.
- the heating element has a channel-like guidance through the unheated end region, the intermediate region and into the heated end region, through which an electrical conductor is guided.
- the unheated area and the intermediate area ideally have a duct-like guide inside them to guide the electrical conductor, which is supplied with current for heating, into the heated area.
- a preferred embodiment is characterized in that the insulating material which forms the intermediate region, both thermally insulating and electrically iso lierend formed.
- the electrical conductor in the interior of the heating element is electrically insulated from the rest of the heating element. This applies at least to the area in which the electrical conductor is guided through the unheated end area. This is to shorts with the unheated end and thus also the surrounding structures are avoided.
- the heating element is arranged, for example, in a metallic honeycomb body, the primary aim is to heat the metal foils forming the flow channels, so that in particular the regions of the honeycomb body are heated at which the catalytic conversion of the passing exhaust gas is to take place.
- the heating element has at its unheated end region mounting means with which it is fixable to the housing of the component for exhaust aftertreatment. This is advantageous because thus the connection between the heating element and those surrounding the heating element structures, such as the housing of a honeycomb body, is generated at a location to which no or only a very minimal heat flow takes place. Thus, the heat losses can be minimized.
- the component for the exhaust gas treatment is formed by a metallic honeycomb body having a cavern, in which the heating element can be inserted.
- a metallic honeycomb body preferably consists of a plurality of smooth and profiled metal foils, which are stacked and wound up.
- Fig. 1 is a schematic sectional view through an inven tion according to heating element.
- FIG. 1 shows a schematic sectional view of a heating element 1, which is inserted into a honeycomb body 2.
- the honeycomb body 2 is only indicated here, in particular the metal foils forming the honeycomb structure are not shown.
- the heating element 1 has three areas.
- the intermediate portion 4 is formed of a thermally and electrically insulating material, so that the heat generated in the heated end portion 5, or only in very small amounts towards unheated end area 3 can flow.
- the heated end region 5 is heated by a current-carrying conductor 6.
- the current-carrying conductor 6 is also guided in a channel-like structure 7 through the unheated end region 3 and the intermediate region 4. Compared to the unheated end region 3 of the current-carrying conductor 6 is ideally electrically isolated.
- the heating element 1 is fastened to the housing of the honeycomb body 2 via a flange 8. Thus, there is no path through which the heat generated by the heating element 1 could flow directly into the housing of the honeycomb body 2.
- the heat is emitted from the heated end region 5 substantially in the radial direction toward the honeycomb body 2 or the flow channels, not shown, of the honeycomb body 2. Furthermore, heat can be given off in an axial direction of the heating element 1 away from the thermally insulating intermediate region 4 to the honeycomb body 2.
- the heating element 1 is shown in Figure 1 as a cylindrical body. However, this is just an exemplary embodiment that is possible. Other geometrical Substituted events that carry the inventive features are possible.
- Figure 1 has in particular no limiting character and serves to illustrate the inventive concept.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018200463.3A DE102018200463A1 (de) | 2018-01-12 | 2018-01-12 | Heizelement |
| PCT/EP2019/050367 WO2019137925A1 (de) | 2018-01-12 | 2019-01-09 | Heizelement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3738406A1 true EP3738406A1 (de) | 2020-11-18 |
Family
ID=65012015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19700268.6A Withdrawn EP3738406A1 (de) | 2018-01-12 | 2019-01-09 | Heizelement |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20210068205A1 (de) |
| EP (1) | EP3738406A1 (de) |
| CN (1) | CN111543120A (de) |
| DE (1) | DE102018200463A1 (de) |
| WO (1) | WO2019137925A1 (de) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0233860B1 (de) * | 1986-02-19 | 1991-05-15 | BÖHLER Gesellschaft m.b.H. | Abgasreinigungseinrichtung |
| DE4132439A1 (de) * | 1991-09-28 | 1993-04-01 | Behr Gmbh & Co | Abgaskatalysator |
| JPH0888075A (ja) * | 1994-09-19 | 1996-04-02 | Tokai Konetsu Kogyo Co Ltd | カートリッジ式発熱体 |
| CN2904544Y (zh) * | 2006-03-14 | 2007-05-23 | 戴树高 | 电加热超导传热器 |
| CN101949024A (zh) * | 2010-10-18 | 2011-01-19 | 天津市泰旭物流有限公司 | 电解氟化钾一氟化氢制备氟气的技术 |
| JP5858891B2 (ja) * | 2012-09-27 | 2016-02-10 | オリジン電気株式会社 | 熱処理装置 |
| DE102015111689C5 (de) * | 2015-07-17 | 2022-09-01 | Türk & Hillinger GmbH | Elektrisch beheizbarer Katalysator und Verfahren zu dessen Herstellung |
| DE102016107213A1 (de) * | 2016-03-03 | 2017-09-07 | Eberspächer Exhaust Technology GmbH & Co. KG | Abgasanlage, insbesondere für eine Brennkraftmaschine eines Fahrzeugs |
| CN205840957U (zh) * | 2016-07-28 | 2016-12-28 | 深圳市中宸蓝天环保科技有限公司 | 一种用于加热含有堇青石净化装置的发热装置 |
| DE202017101660U1 (de) * | 2017-03-22 | 2017-04-12 | Türk & Hillinger GmbH | Elektrische Heizvorrichtung |
-
2018
- 2018-01-12 DE DE102018200463.3A patent/DE102018200463A1/de not_active Ceased
-
2019
- 2019-01-09 EP EP19700268.6A patent/EP3738406A1/de not_active Withdrawn
- 2019-01-09 US US16/961,181 patent/US20210068205A1/en not_active Abandoned
- 2019-01-09 CN CN201980007177.5A patent/CN111543120A/zh active Pending
- 2019-01-09 WO PCT/EP2019/050367 patent/WO2019137925A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019137925A1 (de) | 2019-07-18 |
| CN111543120A (zh) | 2020-08-14 |
| DE102018200463A1 (de) | 2019-07-18 |
| US20210068205A1 (en) | 2021-03-04 |
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Legal Events
| Date | Code | Title | Description |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 17P | Request for examination filed |
Effective date: 20200812 |
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| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
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| AX | Request for extension of the european patent |
Extension state: BA ME |
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| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
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| 18D | Application deemed to be withdrawn |
Effective date: 20210302 |