FR3129978A1 - Self-regulating heating element - Google Patents
Self-regulating heating element Download PDFInfo
- Publication number
- FR3129978A1 FR3129978A1 FR2113018A FR2113018A FR3129978A1 FR 3129978 A1 FR3129978 A1 FR 3129978A1 FR 2113018 A FR2113018 A FR 2113018A FR 2113018 A FR2113018 A FR 2113018A FR 3129978 A1 FR3129978 A1 FR 3129978A1
- Authority
- FR
- France
- Prior art keywords
- heating element
- temperature
- heating
- resistor
- control resistor
- 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
- 238000010438 heat treatment Methods 0.000 title claims abstract description 38
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 12
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 8
- 229910052741 iridium Inorganic materials 0.000 claims description 6
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 229910052697 platinum Inorganic materials 0.000 claims description 6
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 claims description 4
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 239000012212 insulator Substances 0.000 claims description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 2
- 239000000395 magnesium oxide Substances 0.000 claims description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 2
- 229910001120 nichrome Inorganic materials 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 229910000753 refractory alloy Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 230000001747 exhibiting effect Effects 0.000 claims 1
- 239000003054 catalyst Substances 0.000 description 5
- 230000004913 activation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000006262 metallic foam Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- 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 ; Methods of operation or control of catalytic converters
- 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
-
- 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
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/0602—Electrical exhaust heater signals
-
- 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
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/14—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust gas
- F01N2900/1404—Exhaust gas temperature
-
- 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
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
- F01N2900/1602—Temperature of exhaust gas apparatus
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pipe Accessories (AREA)
Abstract
Elément chauffant autorégulant L’invention concerne un élément chauffant (1) pour ligne d’échappement, comprenant un corps tubulaire, un disque disposé en travers d’une section de passage du corps, présentant une résistance (Rh) de chauffage de valeur sensiblement constante en fonction de la température et un circuit électrique (6) comprenant une source de tension (7) connectée de manière à alimenter le disque en énergie électrique, où le circuit électrique (6) comprend encore une résistance (Rc) de contrôle, de valeur croissante en fonction de la température. Figure pour l'abrégé : Figure 1The invention relates to a heating element (1) for an exhaust line, comprising a tubular body, a disk arranged across a passage section of the body, having a heating resistance (Rh) of substantially constant value depending on the temperature and an electrical circuit (6) comprising a voltage source (7) connected so as to supply the disk with electrical energy, where the electrical circuit (6) further comprises a control resistor (Rc), of value increasing with temperature. Figure for abstract: Figure 1
Description
L’invention concerne un élément chauffant pour ligne d’échappement.The invention relates to a heating element for an exhaust line.
Une ligne d’échappement comprend une canalisation et est en charge du transport des gaz d’échappement depuis la sortie d’un moteur thermique, jusqu’à une canule d’extrémité, débouchant à l’air libre. Une ligne d’échappement est encore en charge de la purification des gaz d’échappement avant leur libération à l’air libre.An exhaust line includes a pipe and is in charge of transporting exhaust gases from the outlet of a heat engine, to an end pipe, emerging into the open air. An exhaust line is still in charge of purifying the exhaust gases before they are released into the open air.
La purification des gaz d’échappement peut être réalisée au moyen d’un catalyseur, disposé en travers de la canalisation. Un tel catalyseur doit avoir atteint ou dépassé une température d’activation afin de pouvoir purifier. Cette température d’activation est maintenue par la chaleur des gaz d’échappement, en régime établi. Cependant au démarrage, tant le catalyseur, que les gaz d’échappement sont froids. Aussi, pour atteindre rapidement la température d’activation, il est connu de disposer un élément chauffant en amont d’un catalyseur, de manière à assurer le chauffage des gaz d’échappement et du catalyseur.The purification of the exhaust gases can be carried out by means of a catalyst, arranged across the pipe. Such a catalyst must have reached or exceeded an activation temperature in order to be able to purify. This activation temperature is maintained by the heat of the exhaust gases, in steady state. However, when starting, both the catalyst and the exhaust gases are cold. Also, to quickly reach the activation temperature, it is known to place a heating element upstream of a catalyst, so as to heat the exhaust gases and the catalyst.
Tel qu’illustré à la
La température du disque 3 et de l’élément chauffant 1 est classiquement régulée en contrôlant la valeur de la tension aux bornes du disque 3. Ceci nécessite un composant électronique de régulation de la tension.The temperature of disc 3 and heating element 1 is conventionally regulated by controlling the value of the voltage across the terminals of disc 3. This requires an electronic voltage regulation component.
L’invention se propose de réaliser un élément chauffant 1 autorégulateur de sa puissance et de sa température. Un tel élément chauffant 1 peut être alimenté directement par une source de tension 7 de valeur constante et permettre de faire l’économie du composant électronique de régulation de la tension.The invention proposes to produce a heating element 1 that self-regulates its power and its temperature. Such a heating element 1 can be supplied directly by a voltage source 7 of constant value and make it possible to save the electronic component for regulating the voltage.
Pour cela, l’invention a pour objet un élément chauffant pour ligne d’échappement, comprenant un corps tubulaire, un disque disposé en travers d’une section de passage du corps, présentant une résistance de chauffage de valeur sensiblement constante en fonction de la température et un circuit électrique comprenant une source de tension connectée de manière à alimenter le disque en énergie électrique, où le circuit électrique comprend encore une résistance de contrôle, de valeur croissante en fonction de la température.For this, the subject of the invention is a heating element for an exhaust line, comprising a tubular body, a disk arranged across a passage section of the body, having a heating resistance of substantially constant value as a function of the temperature and an electrical circuit comprising a voltage source connected so as to supply the disk with electrical energy, where the electrical circuit further comprises a control resistor, of increasing value as a function of temperature.
Des caractéristiques ou des modes de réalisation particuliers, utilisables seuls ou en combinaison, sont :Particular characteristics or embodiments, which can be used alone or in combination, are:
- la résistance de chauffage et la résistance de contrôle sont connectées en série,- the heating resistor and the control resistor are connected in series,
- la valeur de la résistance de contrôle est négligeable devant la valeur de la résistance de chauffage à froid et est égale à 30 % de la résistance de chauffage à chaud, à une température cible, préférentiellement à 50% et encore plus préférentiellement à 70%,- the value of the control resistor is negligible compared to the value of the cold heating resistor and is equal to 30% of the hot heating resistor, at a target temperature, preferably at 50% and even more preferably at 70% ,
- la résistance de contrôle est disposée à proximité ou dans l’élément chauffant de manière à être soumise à la température des gaz d’échappement,- the control resistor is placed near or in the heating element so as to be subjected to the temperature of the exhaust gases,
- la résistance de chauffage est le disque lui-même, réalisé en un alliage réfractaire tel qu’un acier inoxydable 1.4535, FeCrAl, NiCr, préférentiellement en un alliage chrome de nickel, tel que du NiCr80,- the heating resistor is the disc itself, made of a refractory alloy such as stainless steel 1.4535, FeCrAl, NiCr, preferably of a chromium-nickel alloy, such as NiCr80,
- la résistance de contrôle est réalisée en fer, en iridium, en platine, ou tout autre matériau présentant une résistance croissante en fonction de la température,- the control resistor is made of iron, iridium, platinum, or any other material with increasing resistance as a function of temperature,
- la résistance de contrôle est une partie du disque, réalisée dans un matériau différent,- the control resistor is a part of the disk, made of a different material,
- l’élément chauffant comprend encore une électrode connectant le disque au circuit électrique et la résistance de contrôle est intégrée à l’électrode,- the heating element further comprises an electrode connecting the disk to the electrical circuit and the control resistor is integrated into the electrode,
- la résistance de contrôle comprend un filament, rectiligne ou spiralé, réalisé en platine, en iridium, en fer ou tout autre matériau présentant une résistance croissante en fonction de la température, disposé dans de la poudre d’oxyde de magnésium compressée,- the control resistor comprises a filament, straight or spiral, made of platinum, iridium, iron or any other material with increasing resistance as a function of temperature, placed in compressed magnesium oxide powder,
- la résistance de contrôle comprend un filament, rectiligne ou spiralé, réalisé en platine, en iridium, en fer ou tout autre matériau présentant une résistance croissante en fonction de la température, disposé autour d’un isolant, préférentiellement en alumine.- the control resistor comprises a filament, straight or spiral, made of platinum, iridium, iron or any other material with increasing resistance as a function of temperature, arranged around an insulator, preferably alumina.
Dans un deuxième aspect de l’invention, une ligne d’échappement, comprenant un tel élément chauffant.In a second aspect of the invention, an exhaust line, comprising such a heating element.
L’invention sera mieux comprise à la lecture de la description qui suit, faite uniquement à titre d’exemple, et en référence aux figures en annexe dans lesquelles :The invention will be better understood on reading the following description, given solely by way of example, and with reference to the appended figures in which:
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2113018A FR3129978A1 (en) | 2021-12-06 | 2021-12-06 | Self-regulating heating element |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2113018 | 2021-12-06 | ||
FR2113018A FR3129978A1 (en) | 2021-12-06 | 2021-12-06 | Self-regulating heating element |
Publications (1)
Publication Number | Publication Date |
---|---|
FR3129978A1 true FR3129978A1 (en) | 2023-06-09 |
Family
ID=81328040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR2113018A Pending FR3129978A1 (en) | 2021-12-06 | 2021-12-06 | Self-regulating heating element |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR3129978A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011017675A1 (en) * | 2010-04-28 | 2011-11-10 | Denso Corporation | Apparatus for calculating a temperature of a conductive support of a catalyst device |
US9212591B2 (en) * | 2012-12-31 | 2015-12-15 | Continental Automotive Systems, Inc. | Using resistance equivalent to estimate heater temperature of an exhaust gas after-treatment component |
US9347353B2 (en) * | 2011-12-21 | 2016-05-24 | Toyota Jidosha Kabushiki Kaisha | Abnormality detection apparatus for electrically heated catalyst |
US20180087427A1 (en) * | 2016-09-28 | 2018-03-29 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas purification apparatus of internal combustion engine |
IT201900000603A1 (en) * | 2019-01-15 | 2020-07-15 | Automobili Lamborghini Spa | EXHAUST GAS TREATMENT SYSTEM INPUT A CATALYTIC DEVICE |
US20200232370A1 (en) * | 2019-01-17 | 2020-07-23 | Toyota Jidosha Kabushiki Kaisha | Abnormality detection apparatus for electrically heated catalyst |
-
2021
- 2021-12-06 FR FR2113018A patent/FR3129978A1/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011017675A1 (en) * | 2010-04-28 | 2011-11-10 | Denso Corporation | Apparatus for calculating a temperature of a conductive support of a catalyst device |
US9347353B2 (en) * | 2011-12-21 | 2016-05-24 | Toyota Jidosha Kabushiki Kaisha | Abnormality detection apparatus for electrically heated catalyst |
US9212591B2 (en) * | 2012-12-31 | 2015-12-15 | Continental Automotive Systems, Inc. | Using resistance equivalent to estimate heater temperature of an exhaust gas after-treatment component |
US20180087427A1 (en) * | 2016-09-28 | 2018-03-29 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas purification apparatus of internal combustion engine |
IT201900000603A1 (en) * | 2019-01-15 | 2020-07-15 | Automobili Lamborghini Spa | EXHAUST GAS TREATMENT SYSTEM INPUT A CATALYTIC DEVICE |
US20200232370A1 (en) * | 2019-01-17 | 2020-07-23 | Toyota Jidosha Kabushiki Kaisha | Abnormality detection apparatus for electrically heated catalyst |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4450682A (en) | Carbon particulates cleaning device for diesel engine | |
US4725711A (en) | Self temperature control type glow plug | |
CN108691616B (en) | Method for purifying exhaust gases of a vehicle, corresponding purification device | |
US20030196419A1 (en) | Bifilar diesel exhaust filter construction using sintered metal fibers | |
CA2570573A1 (en) | Environmental protection fuel-saving device of vehicle | |
US20060275720A1 (en) | Low power control system and associated methods for a water heater with flammable vapor sensor | |
EP0785396B1 (en) | A sheathed heater and a temperature self-regulating type glow plug | |
US20100089042A1 (en) | Two-stage regeneration of diesel particulate filter | |
JP2745225B2 (en) | Glow plug for diesel engine | |
FR3129978A1 (en) | Self-regulating heating element | |
US4631024A (en) | Catalytic combustion device | |
JPH0696838A (en) | Incandescent plug | |
CN105308391A (en) | Sheathed-element glow plug and method for the production thereof | |
FR3130108A1 (en) | Profiled heating element electrode | |
JPH08200676A (en) | Glow plug for diesel engine | |
FR2918112A1 (en) | Thermal controlling system for internal combustion engine of vehicle, has generator generating current, accumulator storing generated current, heating device reheating oil, and control unit providing current from accumulator to device | |
JPH10110953A (en) | Glow plug | |
FR3092365A1 (en) | Volume, device, exhaust line and vehicle, volume control process | |
US2007508A (en) | Circuit control system | |
FR2733798A1 (en) | IC engine crankcase gas recycling using added heat | |
JPS5960125A (en) | Glow-plug for diesel engine | |
US20050053884A1 (en) | Hot wire igniter | |
JP2004125267A (en) | Combustion apparatus | |
JPH10110950A (en) | Glow plug and its manufacture | |
FR3129179A1 (en) | Heating element for exhaust line |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PLFP | Fee payment |
Year of fee payment: 2 |
|
PLSC | Publication of the preliminary search report |
Effective date: 20230609 |
|
RX | Complete rejection |
Effective date: 20240325 |