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WO2001042713A1 - Dispositif de traitement des gaz d'echappement d'un moteur a combustion interne - Google Patents

Dispositif de traitement des gaz d'echappement d'un moteur a combustion interne Download PDF

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Publication number
WO2001042713A1
WO2001042713A1 PCT/DE2000/003761 DE0003761W WO0142713A1 WO 2001042713 A1 WO2001042713 A1 WO 2001042713A1 DE 0003761 W DE0003761 W DE 0003761W WO 0142713 A1 WO0142713 A1 WO 0142713A1
Authority
WO
WIPO (PCT)
Prior art keywords
glow plug
exhaust gas
catalyst
electrically conductive
glow
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.)
Ceased
Application number
PCT/DE2000/003761
Other languages
German (de)
English (en)
Inventor
Albrecht Geissinger
Daniel Franz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to SK770-2002A priority Critical patent/SK7702002A3/sk
Priority to PL00355690A priority patent/PL355690A1/xx
Priority to HU0203673A priority patent/HUP0203673A2/hu
Priority to BR0016194-2A priority patent/BR0016194A/pt
Priority to EP00984860A priority patent/EP1244888A1/fr
Priority to JP2001543959A priority patent/JP2003516499A/ja
Priority to KR1020027007144A priority patent/KR20020068049A/ko
Publication of WO2001042713A1 publication Critical patent/WO2001042713A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
    • F23Q7/001—Glowing plugs for internal-combustion engines
    • 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
    • F01N3/204—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using an exhaust gas igniter, e.g. a spark or glow plug, without introducing fuel into exhaust duct
    • 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
    • F01N3/30—Arrangements for supply of additional air
    • 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 device for exhaust gas treatment according to the type of the main claim.
  • Such devices are preferably used in internal combustion engines.
  • Such a device is already known from DE 39 39 068, which has a catalyst and in which the catalyst is heated by one or more glow plugs protruding into the catalyst.
  • WO 97/25525 it is also described that a glow plug attached in front of the catalyst (based on the path of the exhaust gas) heats the catalyst antechamber and is used there to ignite the combustible mixture.
  • glow plug plugs for exhaust gas afterburning used in devices for exhaust gas treatment have a heating element with an external metallic sleeve closed to the catalyst antechamber, the heating of the glow plug being carried out by an internal heating coil. Furthermore, there is a ceramic powder inside the metallic sleeve, which on the one hand ensures heat transfer from the heating coil to the metallic sleeve and on the other hand fixes the coils in their position.
  • a seal which preferably consists of elastomers, is used to seal the metallic sleeve that is open in the direction away from the catalyst antechamber, this seal sealing the ceramic powder and thus also the heating coil in an airtight manner.
  • the seals used according to the prior art are not stable at temperatures above approximately 220 ° C. and cannot perform their sealing function in this temperature range.
  • the temperatures at the point of installation of the exhaust gas tract when the internal combustion engine is operating and thus also at the glow plug at the location of the seal are in the range from 500 ° C. to 600 ° C. Accordingly, the seals of the glow plug used according to the prior art are not suitable for a device for exhaust gas treatment.
  • the device for exhaust gas treatment according to the invention with the characterizing features of the main claim has the advantage that a sealing of the glow plug is no longer necessary. It is also advantageous that the heating element of the device for exhaust gas treatment according to the invention has a higher temperature resistance and a higher resistance to reactive gases.
  • the heating element is advantageous to form the heating element from two electrically conductive ceramic layers and a ceramic electrically insulating layer, the two electrically conductive ceramic layers being connected to one another, since this represents a simple construction. Also in relation to the coefficient of thermal expansion of the various components of the heating element
  • the thermal expansion coefficients can be optimally adapted by varying the composition of the layers. This prevents the heating element from being destroyed during thermal cycling.
  • This structure can be realized both with a U-shaped and with a cylindrical design of the electrically conductive ceramic layers. Furthermore, it is advantageous to surround the heating element with an internal metallic heating coil surrounded by a ceramic matrix, form, since it is thus possible to easily implement a ceramic layer on the outside of the heating element
  • Figure 1 is a schematic representation of an inventive device for exhaust gas treatment
  • FIG. 1 schematically shows a device for exhaust gas treatment as a longitudinal section, in which the exhaust gas originating from one or more combustion chambers 5 passes into an exhaust gas tract 7.
  • the path of the exhaust gas is shown by an arrow.
  • the exhaust gas first passes through an exhaust pipe 10 and then passes into a catalyst chamber 13 which has a larger cross section than the exhaust pipe 10.
  • An exhaust tract can also have several catalyst chambers.
  • the catalytic converter chamber 13 contains a catalytic converter space 15 and a catalytic converter 20.
  • One or more glow plug plugs 30 are attached in the catalytic converter room 15.
  • the Glow plugs have a connector 35 and a supply line 40.
  • the glow plugs can both, as shown, be arranged in the part of the catalyst space 15 in which an expansion of the cross section of the exhaust tract from the
  • Exhaust pipe 10 to the catalyst chamber 13 takes place or they can be arranged in the part of the catalyst antechamber 15 which has the cross section of the catalyst. Such a point is provided with reference number 41. In the exhaust pipe there is still a supply line for the
  • a pre-catalytic converter can be fitted in the exhaust gas line 10 upstream of the supply line for the secondary air. Furthermore, it is possible for a flow straightener to be fitted in front of the glow plug 30 in the catalyst antechamber 15. Furthermore, one or more oxygen sensors can be attached in the exhaust tract 7. These oxygen sensors are generally designed as lambda sensors.
  • the exhaust gas flows in the direction of the arrow from the combustion chamber 5 through the exhaust tract 7. It first passes through the exhaust gas line 10. Secondary air is supplied to the exhaust gas there via the supply line for secondary air 43. The exhaust gas, which is now mixed with secondary air, then passes through the catalyst antechamber 15, in which a quantity of heat is released by the glow plug 30 at certain times. The exhaust gas then penetrates the catalytic converter 20.
  • the catalytic converter 20 which is generally designed as a 3-way catalytic converter, the constituents CO, NO x and HC of the exhaust gas react with the catalytically active coating on the catalyst carrier. For the catalytic reaction to take place, the catalyst 20 must exceed a temperature of 300 ° C to have. This temperature is called the conversion threshold.
  • the catalytic converter 20 At the start of the internal combustion engine, the catalytic converter 20 has not yet reached the conversion threshold. It is therefore necessary to heat the catalyst. Heating the catalytic converter by the so-called exhaust gas afterburning, which was already mentioned in the introduction to the description, represents a simple possibility of heating the catalytic converter, with a very high energy release being achieved. This makes it possible to heat the catalytic converter very quickly. The heating takes place for a period of up to a few minutes after the restart of the internal combustion engine and during the operation of the internal combustion engine, for example when a temperature sensor detects that the temperature of the catalytic converter has dropped below the conversion threshold.
  • a rich exhaust gas is made available by influencing the amount of fuel injected and / or the ignition angle.
  • This exhaust gas is mixed with secondary air via the secondary air supply line 43 in such a way that a combustible exhaust gas is produced.
  • the ignition of the exhaust gas is ensured in the catalytic converter space 13 with the aid of the amount of heat provided by the glow plug 30.
  • the amount of heat generated by the exothermic reaction due to the combustion of the exhaust gas is used to heat up the catalytic converter 20.
  • This exhaust gas afterburning is carried out immediately after starting the internal combustion engine or when it is determined that the conversion threshold has been undershot, up to a few minutes.
  • the glow plug is also operated during this period.
  • the glow pencil candle 30 is supplied with the electrical energy required for heating via the plug 35 and the supply line 40. This is taken from the voltage supply, not shown, of the internal combustion engine.
  • the glow stick candle 30 has a glow stick 44 which, in the device for exhaust gas treatment according to the invention, has an outer layer of ceramic material facing the catalytic converter antechamber 15. It is possible to realize the glow plug 30 without sealing the glow plug that is not temperature-resistant.
  • the glow plug of the exhaust gas treatment device according to the invention can thus be used without further measures
  • Cooling can be used to support exhaust gas afterburning. Furthermore, such a glow pencil candle 30 has a high resistance to high temperatures and reactive gases.
  • FIG. 2 schematically shows an exemplary embodiment of a glow plug for a catalyst antechamber of a device for exhaust gas treatment according to the invention in longitudinal section.
  • the glow plug 30 has a metallic housing 45.
  • a connecting bolt 50 is arranged in a central cylindrical bore of the housing 45 and is fixed by means of a sealing element 55.
  • the sealing element 55 also seals off the end of the glow plug which is remote from the catalyst space. In a preferred embodiment is in the direction
  • connection element 60 which as a resilient element, preferably as a contact spring, or as Powder pack can be arranged.
  • the glow plug 44 is also provided in the cylindrical central bore of the housing in the direction of the catalyst antechamber after the connecting element. The glow plug 44 protrudes beyond the edge of the housing 45 into the antechamber 15. Due to the electrical resistances present in the glow plug, the glow plug 44 heats up and the catalytic converter 20 heats up with the exhaust gas thereby ignited.
  • Glow plug 44 is composed of a first electrically conductive layer 90 and a second electrically conductive layer 95. Both electrically conductive layers, which consist of electrically conductive ceramic, are separated by an insulating layer 97, which likewise consists of ceramic material. The first electrically conductive layer 90 and the second electrically conductive layer 95 are connected to one another in the region 100 at the tip of the glow plug 44 on the catalyst antechamber. The area 100 also consists of ceramic material. The electrical contact takes place via the connection element 60 and the first electrically conductive layer 90, the connection region 100 and the second electrically conductive layer 95 to the housing 45. The resistance of the electrically conductive layers 90, 95 and 100, which each consist of ceramic material, heating of the glow plug 44 is achieved.
  • the glow plug is designed in such a way that the glow plug 44 consists only of ceramic, that is to say that the layer facing the catalyst antechamber consists of solid ceramic material. Accordingly, there is no metallic material inside the glow plug that has to be sealed against oxygen. Sealing of the glow plug itself is therefore not necessary and an elastomer seal does not have to be used for the glow plug.
  • the ceramic material of the glow plug also has a high resistance to high temperatures and reactive gases.
  • FIG. 3 shows a glow pencil candle 30 in the catalytic converter space 15 of a device for exhaust gas treatment according to the invention, in a longitudinal section, schematically. Except for the glow plug 44, the construction is analogous to the construction of the glow plug in FIG. 2, which is why this part of the glow plug will not be discussed again here.
  • the same reference symbols mean the same components.
  • the glow plug 44 shown in FIG. 3 is designed such that a metallic heating coil 75 is embedded in a ceramic matrix 70.
  • the glow plug 44 is supplied with power via the supply line 40 and the plug 35 (both of the latter parts are shown in FIG. 1).
  • the plug 35 is in electrical contact with the connecting bolt 50 and the connecting element 60.
  • the connecting element 60 in turn has an electrical contact with the heating coil 75 of the glow plug.
  • the heating coil runs, as shown in Figure 2, U-shaped through the Glow plug. It can also consist of several interconnected heating coil sections with different resistances and resistance temperature behavior.
  • the heating coil is also in electrical contact with the housing 45, which is grounded.
  • the glow plug 44 can also be arranged with a part of its end remote from the catalyst antechamber in a cylindrical central bore of a metal tube, which in turn is arranged in the central bore of the housing 45. Furthermore, in a further embodiment, the electrical contact of the heating coil with the plug 35 can also take place via at least one feed line running laterally in the central bore of the housing 45 instead of via the connecting element 60 and the connecting bolt 50.
  • Such a design of the glow plug for a catalytic converter antechamber of an exhaust gas treatment device according to the invention has the advantage that the outer layer of the glow plug facing the catalytic converter antechamber consists of ceramic material, the ceramic matrix 44.
  • the metallic heating coil 75 is firmly sintered into the solid ceramic matrix 70 and it is therefore not necessary to use a seal on the glow plug.
  • FIG. 1 Various schematically are shown in FIG. 1
  • FIG. B shows a cross section of a glow plug of a glow plug for a catalyst antechamber of a device for exhaust gas treatment according to the invention. This cross section should be located in the direction away from the catalyst antechamber below the connection area 100.
  • the first conductive layer 90, the second conductive layer 95 and the electrically insulating layer 97 can be seen.
  • the cross section is rectangular.
  • FIG. 4c A further cross section of a glow plug 44 is shown in FIG. 4c.
  • This cross section contains the same components as FIG. 4b, but is rounded in its shape.
  • FIG. 4d shows an analogous cross section, the cross section in FIG. 4d not only having rounded corners as in FIG. 4c, but one side being completely rounded.
  • FIG. 4e shows a further glow plug according to the invention, which likewise has the same components as FIG. 4b.
  • the entire cross-section of the glow pencil has an elliptical shape.
  • the shorter side with a greater or the same length.
  • the elliptical shape of FIG. 4e can also be circular. Due to the different cross sections shown in FIGS. 4b to 4e, an optimal adaptation of the shape of the glow plug 44 to the conditions of the catalyst antechamber 15 can be achieved.
  • Other cross-sectional shapes of the glow plug 44 are also conceivable.
  • FIG. 5 shows a further exemplary embodiment of a glow plug 44 for the catalyst antechamber of a device for exhaust gas treatment according to the invention.
  • FIG. 5a shows a longitudinal section, schematically, by eir.en such a glow plug.
  • the electrically conductive and electrically insulating layers are arranged cylindrically in this embodiment.
  • the first electrically conductive ceramic layer 90 forms an inner cylinder, which is surrounded by an electrically insulating ceramic layer 97, which is tubular. This layer is in turn surrounded by an electrically conductive layer 95 in the form of a tube.
  • the first electrically conductive layer 90 and the second electrically conductive layer 95 which likewise consist of ceramic material, are connected to one another in the region of the tip of the glow plug 100 on the side of the catalytic converter.
  • This structure of the glow plug is called cylindrical.
  • a glow plug shown in FIG. 5a is drawn in cross section in FIG. 5b. This
  • FIG. 5c shows the same cylindrical embodiment of a ceramic glow pencil as in FIG. 5b in cross section.
  • FIG. 5c differs from FIG. 5b in its shape.
  • the layers here are rectangular Cross section on. In principle, however, this structure corresponds to the structure described in FIGS. 5a and 5b. It can be adjusted according to the production conditions and the conditions in the catalyst antechamber.

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)
  • Incineration Of Waste (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

L'invention concerne un dispositif de traitement des gaz d'échappement d'un moteur à combustion interne, comportant une ou plusieurs chambres de catalyseur (13), au moins une chambre de catalyseur (13) présentant une ou plusieurs bougies de préchauffage (30), et chaque bougie de préchauffage (30) portant une tige de préchauffage (44) disposée de manière que les gaz d'échappement passent d'abord au niveau de la ou des tiges de préchauffage (44) et traversent ensuite un catalyseur (20). Le chauffage de la tige de préchauffage (44) permettant de provoquer une inflammation des gaz d'échappement contenant des composants inflammables. Ledit dispositif est caractérisé en ce que le tige de préchauffage (44) présente une couche céramique extérieure orientée vers la chambre de catalyseur (13).
PCT/DE2000/003761 1999-12-09 2000-10-25 Dispositif de traitement des gaz d'echappement d'un moteur a combustion interne Ceased WO2001042713A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SK770-2002A SK7702002A3 (en) 1999-12-09 2000-10-25 Device for the exhaust treatment in an internal combustion engine
PL00355690A PL355690A1 (en) 1999-12-09 2000-10-25 Device for the exhaust treatment in an internal combustion engine
HU0203673A HUP0203673A2 (en) 1999-12-09 2000-10-25 Device for the exhaust treatment in an internal combustion engine
BR0016194-2A BR0016194A (pt) 1999-12-09 2000-10-25 Dispositivo para o tratamento do gás de escape de uma máquina de combustão interna
EP00984860A EP1244888A1 (fr) 1999-12-09 2000-10-25 Dispositif de traitement des gaz d'echappement d'un moteur a combustion interne
JP2001543959A JP2003516499A (ja) 1999-12-09 2000-10-25 内燃機関の排ガスを処理するための排ガス処理装置
KR1020027007144A KR20020068049A (ko) 1999-12-09 2000-10-25 내연 기관의 배기 가스 처리 장치

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19959303A DE19959303A1 (de) 1999-12-09 1999-12-09 Vorrichtung zur Abgasbehandlung einer Brennkraftmaschine
DE19959303.5 1999-12-09

Publications (1)

Publication Number Publication Date
WO2001042713A1 true WO2001042713A1 (fr) 2001-06-14

Family

ID=7931949

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2000/003761 Ceased WO2001042713A1 (fr) 1999-12-09 2000-10-25 Dispositif de traitement des gaz d'echappement d'un moteur a combustion interne

Country Status (11)

Country Link
EP (1) EP1244888A1 (fr)
JP (1) JP2003516499A (fr)
KR (1) KR20020068049A (fr)
BR (1) BR0016194A (fr)
CZ (1) CZ20021862A3 (fr)
DE (1) DE19959303A1 (fr)
HU (1) HUP0203673A2 (fr)
PL (1) PL355690A1 (fr)
SK (1) SK7702002A3 (fr)
TW (1) TW472109B (fr)
WO (1) WO2001042713A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2028710A3 (fr) * 2007-08-18 2009-09-30 J. Eberspächer GmbH Co. KG Système de cellules combustibles
DE10323979B4 (de) * 2003-05-27 2014-04-30 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Abgasbehandlungsvorrichtung für einen Verbrennungsmotor eines Kraftfahrzeugs

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021000197A1 (de) 2021-01-18 2022-07-21 Mercedes-Benz Group AG Abgasanlage für eine Verbrennungskraftmaschine eines Kraftfahrzeugs, insbesondere eines Kraftwagens
DE102022108338B3 (de) 2022-04-06 2023-03-30 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Brennkraftmaschine und zugehöriges Betriebsverfahren

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3918964A1 (de) * 1988-06-09 1989-12-14 Ngk Spark Plug Co Keramisches heizelement
EP0427675A1 (fr) * 1989-11-09 1991-05-15 Battelle Memorial Institute Bougie d'allumage à incandescence pour moteurs diesel et procédé de fabrication de cette bougie
US5059768A (en) * 1989-09-11 1991-10-22 Jidosha Kiki Co., Ltd. Ceramic heater type glow plug
US5189280A (en) * 1987-11-05 1993-02-23 Hitachi Metals, Ltd. Glow plug for diesel engines
EP0601727A1 (fr) * 1992-11-23 1994-06-15 THE ELECTROFUEL MANUFACTURING Co. Elément de chauffage en céramique pour bougie de réchauffage avec coefficient adaptés de dilatation thermique
WO1999017005A1 (fr) * 1997-09-30 1999-04-08 Siemens Aktiengesellschaft Procede et dispositif pour la purification des gaz d'echappement d'une installation a combustion

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3939068C2 (de) * 1989-11-25 1997-07-10 Audi Ag Vorrichtung zur Abgasentgiftung einer Brennkraftmaschine in einem Kraftfahrzeug
DE4400260A1 (de) * 1994-01-07 1995-07-13 Bosch Gmbh Robert Steuerungssystem für einen Verbrennungsmotor
DE4410484A1 (de) * 1994-03-25 1995-05-04 Daimler Benz Ag Heizeinrichtung
GB2308990A (en) * 1996-01-13 1997-07-16 Ford Motor Co Reducing the light-off time of a catalytic converter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5189280A (en) * 1987-11-05 1993-02-23 Hitachi Metals, Ltd. Glow plug for diesel engines
DE3918964A1 (de) * 1988-06-09 1989-12-14 Ngk Spark Plug Co Keramisches heizelement
US5059768A (en) * 1989-09-11 1991-10-22 Jidosha Kiki Co., Ltd. Ceramic heater type glow plug
EP0427675A1 (fr) * 1989-11-09 1991-05-15 Battelle Memorial Institute Bougie d'allumage à incandescence pour moteurs diesel et procédé de fabrication de cette bougie
EP0601727A1 (fr) * 1992-11-23 1994-06-15 THE ELECTROFUEL MANUFACTURING Co. Elément de chauffage en céramique pour bougie de réchauffage avec coefficient adaptés de dilatation thermique
WO1999017005A1 (fr) * 1997-09-30 1999-04-08 Siemens Aktiengesellschaft Procede et dispositif pour la purification des gaz d'echappement d'une installation a combustion

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10323979B4 (de) * 2003-05-27 2014-04-30 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Abgasbehandlungsvorrichtung für einen Verbrennungsmotor eines Kraftfahrzeugs
EP2028710A3 (fr) * 2007-08-18 2009-09-30 J. Eberspächer GmbH Co. KG Système de cellules combustibles

Also Published As

Publication number Publication date
KR20020068049A (ko) 2002-08-24
PL355690A1 (en) 2004-05-17
DE19959303A1 (de) 2001-06-21
HUP0203673A2 (en) 2003-02-28
TW472109B (en) 2002-01-11
EP1244888A1 (fr) 2002-10-02
JP2003516499A (ja) 2003-05-13
CZ20021862A3 (cs) 2003-01-15
SK7702002A3 (en) 2003-03-04
BR0016194A (pt) 2002-08-13

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