WO2002040839A1 - Insert for an exhaust gas channel - Google Patents

Insert for an exhaust gas channel Download PDF

Info

Publication number
WO2002040839A1
WO2002040839A1 PCT/SE2001/002337 SE0102337W WO0240839A1 WO 2002040839 A1 WO2002040839 A1 WO 2002040839A1 SE 0102337 W SE0102337 W SE 0102337W WO 0240839 A1 WO0240839 A1 WO 0240839A1
Authority
WO
WIPO (PCT)
Prior art keywords
insert
wire
exhaust gas
gas channel
insert according
Prior art date
Application number
PCT/SE2001/002337
Other languages
French (fr)
Inventor
Thomas Lewin
Hans LÖVGREN
Original Assignee
Sandvik Ab
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 Sandvik Ab filed Critical Sandvik Ab
Priority to US10/381,358 priority Critical patent/US20040091402A1/en
Priority to JP2002543135A priority patent/JP2004514086A/en
Priority to AU2001296199A priority patent/AU2001296199B2/en
Priority to AU9619901A priority patent/AU9619901A/en
Priority to EP01977049A priority patent/EP1328712A1/en
Publication of WO2002040839A1 publication Critical patent/WO2002040839A1/en
Priority to NO20031882A priority patent/NO20031882D0/en

Links

Classifications

    • B01J35/56—
    • 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 ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
    • 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
    • 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
    • F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
    • 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
    • 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
    • F01N2240/20—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 a flow director or deflector
    • 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
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/12—Metallic wire mesh fabric or knitting
    • 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 present invention relates to an exhaust gas channel insert.
  • One object of the insert is to create turbulence and/or mixing of the gas flowing through the exhaust channel, with the intention of cleansing the exhaust gas.
  • inserts of this nature are known to the art. Some consist of plates in which a large number of holes have been punched. Examples of such inserts are net catalysts in which holes have been punched or clipped. This results in a large amount of material waste.
  • inserts that consist of a number of layers of net, wire or some other suitable material, where the layers are sintered, welded to rods or fastened mechanically thereto in some other way, such as to hold the layers together. This technique is relatively expensive.
  • An object of the present invention is to provide an insert which can be produced cheaply and which can be readily inserted into a straight exhaust channel and in a curved exhaust channel.
  • the present invention relates to an exhaust gas channel insert for generating turbulence in and/or mixing gas flowing through said channel, wherein part of the insert covers the cross-sectional area of the exhaust gas channel, and wherein the invention is characterised in that the insert includes an elongate helical wire element where each wire turn in the helix includes angled portions such that each turn will have an essentially star shape; in that the wire element has along the longitudinal axis of the helix an extension along which the wire is unbroken; and in that the wire element is self-supporting.
  • the inventive insert is intended to be fitted in an exhaust gas channel so as to create turbulence in and/or to cause mixing of the gas flowing through said channel.
  • the insert covers a part of the cross-sectional area of the exhaust gas channel. However, the insert is located over the entire cross-section of the exhaust gas channel.
  • the insert 1 has the form of an elongate, helical wire element where each wire turn 2 of the helix includes angled portions, so that each turn will have an essentially star shape; see Figure 2.
  • the wire element has along the longitudinal axis of the helix an extension along which the wire is unbroken.
  • the wire element is also self-supporting.
  • a wire element of this construction is marketed by Kanthal AB as a resistance element for heating purposes.
  • the wire element is marketed under the trademark Porcupine.
  • the wire is comprised of a material that includes iron (Fe), chromium (Cr) in quantities of 20-24 percent by weight, and aluminium (Al) in a quantity of 4-10 percent by weight.
  • Fe iron
  • Cr chromium
  • Al aluminium
  • a suitable wire diameter is 0.5 to 3 millimetres.
  • the insert will conveniently have an outer diameter that corresponds to or that is slightly smaller than the inner diameter of the exhaust gas channel, as illustrated in Figures 3 and 4.
  • the length of the insert exceeds two times its diameter, so as to generate a very high degree of turbulence.
  • the insert can function as a mixer.
  • An example of this is shown in Figure 4, where the reference numeral 3 identifies a burner, the reference numeral 6 identifies an exhaust gas channel, and the reference numeral 5 identifies a secondary air inlet.
  • the secondary air is intended to be mixed with and react with the waste gas from the burner, so as to achieve more complete combustion. In this case, mixing is achieved in the insert 1, as indicated at 7.
  • Figure 3 shows another example of an application of the present invention, where the reference numeral 8 identifies a burner, the reference numeral 9 identifies an exhaust gas channel, and the reference numeral 10 identifies a secondary air inlet.
  • the helical wire element 1 is wound so as to form a cylindrical hollow part 11 in the centre of the element 1; see Figure 2.
  • D indicates the outer diameter of the element and d indicates the diameter of the hollow part 11.
  • An element of this nature is self-supporting.
  • an elongate cylindric core 12 of a ceramic material is disposed in the cylindrical hollow part 11. This embodiment will best be seen from Figure 1.
  • the wire element can also be wound to enable it to be inserted into a channel between two mutually concentrical pipes.
  • Such an application is found in certain types of burner, of which one such burner is described in Swedish Patent No. 9800473-2.
  • this core 12 has the form of a pipe through which secondary air is passed into the wire element for mixing with the waste gas therein.
  • the pipe or core 12 will suitable have holes in its barrel surface along its length.
  • the wire is coated with one or more catalytic materials.
  • the wire may be coated with 10-50% rhodium and 90-50% platinum. It is preferred to oxidise the element at a high temperature prior to coating the wire, such as to cover the surface of the wire with aluminium oxide (Al 2 O 3 ).
  • the element 1 will function as a catalyst. This is illustrated in Figure 4, where one such catalyst is referenced 13.
  • Such a catalyst has a large surface area, generates high turbulence and results in a low drop in pressure.
  • the insert can be pushed into curved exhaust gas channels and provide therein the same effect as when inserted into straight channels.
  • an insert which includes a catalytic coating can be inserted into the exhaust gas channel of an internal combustion engine, and therewith extend from the intake and exhaust manifold of the engine to a position further down in the exhaust channel.

Abstract

An exhaust gas channel insert for generating turbulence and/or for mixing gas flowing through said channel (6; 9), said insert (1) partially covering the cross-sectional area of the exhaust gas channel. The invention is characterised in that the insert (1) includes a helical, elongate wire element where each wire turn (2) in the helix includes angled portions such that each turn will have an essentially star shape; in that the wire element has an extension int eh longitudinal axial direction of the helix along which the wire is unbroken; and in that the wire element is self-supporting.

Description

INSERT FOR AN EXHAUST GAS CHANNEL
The present invention relates to an exhaust gas channel insert. One object of the insert is to create turbulence and/or mixing of the gas flowing through the exhaust channel, with the intention of cleansing the exhaust gas.
Different types of inserts of this nature are known to the art. Some consist of plates in which a large number of holes have been punched. Examples of such inserts are net catalysts in which holes have been punched or clipped. This results in a large amount of material waste.
Also available are inserts that consist of a number of layers of net, wire or some other suitable material, where the layers are sintered, welded to rods or fastened mechanically thereto in some other way, such as to hold the layers together. This technique is relatively expensive.
Such known inserts are also difficult, if not impossible, to insert in a curved exhaust channel.
An object of the present invention is to provide an insert which can be produced cheaply and which can be readily inserted into a straight exhaust channel and in a curved exhaust channel.
Accordingly, the present invention relates to an exhaust gas channel insert for generating turbulence in and/or mixing gas flowing through said channel, wherein part of the insert covers the cross-sectional area of the exhaust gas channel, and wherein the invention is characterised in that the insert includes an elongate helical wire element where each wire turn in the helix includes angled portions such that each turn will have an essentially star shape; in that the wire element has along the longitudinal axis of the helix an extension along which the wire is unbroken; and in that the wire element is self-supporting.
The invention will now be described in more detail partly with reference to an exemplifying embodiment of the invention shown in the accompanying drawings, in which - Figure 1 is a perspective view of an inventive insert;
- Figure 2 shows the insert as seen along its longitudinal axis;
- Figure 3 illustrates an example of one application of the insert; and
- Figure 4 shows another example of an application of the insert.
The inventive insert is intended to be fitted in an exhaust gas channel so as to create turbulence in and/or to cause mixing of the gas flowing through said channel. The insert covers a part of the cross-sectional area of the exhaust gas channel. However, the insert is located over the entire cross-section of the exhaust gas channel.
According to the invention, the insert 1 has the form of an elongate, helical wire element where each wire turn 2 of the helix includes angled portions, so that each turn will have an essentially star shape; see Figure 2.
The wire element has along the longitudinal axis of the helix an extension along which the wire is unbroken. The wire element is also self-supporting.
A wire element of this construction is marketed by Kanthal AB as a resistance element for heating purposes. The wire element is marketed under the trademark Porcupine.
According to a preferred embodiment, the wire is comprised of a material that includes iron (Fe), chromium (Cr) in quantities of 20-24 percent by weight, and aluminium (Al) in a quantity of 4-10 percent by weight. This enables the wire to resist the high temperatures that exist in an exhaust gas channel. A suitable wire diameter is 0.5 to 3 millimetres.
The insert will conveniently have an outer diameter that corresponds to or that is slightly smaller than the inner diameter of the exhaust gas channel, as illustrated in Figures 3 and 4.
It will be evident that as a result of its intricate construction, the wire element will generate a very high turbulence in an exhaust gas channel.
According to one preferred embodiment, the length of the insert exceeds two times its diameter, so as to generate a very high degree of turbulence. In one embodiment, the insert can function as a mixer. An example of this is shown in Figure 4, where the reference numeral 3 identifies a burner, the reference numeral 6 identifies an exhaust gas channel, and the reference numeral 5 identifies a secondary air inlet. The secondary air is intended to be mixed with and react with the waste gas from the burner, so as to achieve more complete combustion. In this case, mixing is achieved in the insert 1, as indicated at 7.
Figure 3 shows another example of an application of the present invention, where the reference numeral 8 identifies a burner, the reference numeral 9 identifies an exhaust gas channel, and the reference numeral 10 identifies a secondary air inlet.
According to one preferred embodiment, the helical wire element 1 is wound so as to form a cylindrical hollow part 11 in the centre of the element 1; see Figure 2. In Figure 2, D indicates the outer diameter of the element and d indicates the diameter of the hollow part 11. An element of this nature is self-supporting.
According to an alternative embodiment, an elongate cylindric core 12 of a ceramic material is disposed in the cylindrical hollow part 11. This embodiment will best be seen from Figure 1.
The wire element can also be wound to enable it to be inserted into a channel between two mutually concentrical pipes. Such an application is found in certain types of burner, of which one such burner is described in Swedish Patent No. 9800473-2.
In the Figure 3 embodiment, this core 12 has the form of a pipe through which secondary air is passed into the wire element for mixing with the waste gas therein. The pipe or core 12 will suitable have holes in its barrel surface along its length.
According to one highly preferred embodiment of the invention, the wire is coated with one or more catalytic materials. In this regard, it is preferred to coat the wire with platinum (Pt) and/or rhodium (Rh). For instance, the wire may be coated with 10-50% rhodium and 90-50% platinum. It is preferred to oxidise the element at a high temperature prior to coating the wire, such as to cover the surface of the wire with aluminium oxide (Al2O3).
As a result of this coating, the element 1 will function as a catalyst. This is illustrated in Figure 4, where one such catalyst is referenced 13.
Such a catalyst has a large surface area, generates high turbulence and results in a low drop in pressure.
It will be evident that because of its construction, the insert can be pushed into curved exhaust gas channels and provide therein the same effect as when inserted into straight channels.
For instance, an insert which includes a catalytic coating can be inserted into the exhaust gas channel of an internal combustion engine, and therewith extend from the intake and exhaust manifold of the engine to a position further down in the exhaust channel.
In such applications, and also in other applications, it is preferred that at least those portions of the insert which lie in abutment with the inner surface of said channel are soldered or welded to said surface. In Figure 2, it is the outer portions 14 that will lie in abutment with the inner surface of the exhaust gas channel.
Although the invention has been described above with reference to a number of embodiments thereof, it will be obvious that the shape of the insert must be adapted to the application for which it is intended.
Consequently, the present invention shall not be considered restricted to the aforedescribed and illustrated exemplifying embodiments thereof* since variations can be made within the scope of the accompanying Claims.

Claims

1. An exhaust gas channel insert for generating turbulence and/or for mixing gas flowing through said channel (6; 9), said insert (1) partially covering the cross-sectional area of the exhaust gas channel, characterised in that the insert (1) includes a helical, elongate wire element where each wire turn (2) in the helix includes angled portions such that each turn will have an essentially star shape; in that the wire element has an extension in the longitudinal axial direction of the helix along which the wire is unbroken; and in that the wire element is self-supporting.
2. An insert according to Claim 1, characterised in that the length of the insert (1) is more than two times its diameter.
3. An insert according to Claim 1 or 2, characterised in that the wire is comprised of a material that includes iron (Fe), chromium (Cr) and aluminium (Al).
4. An insert according to Claim 1, 2 or 3, characterised in that the wire is coated with one or more catalytic materials.
5. An insert according to Claim 1, 2, 3 or 4, characterised in that the wire is coated with platinum (Pt) and/or rhodium (Rh).
6. An insert according to Claim 1, 2, 3, 4 or 5, characterised in that at least those portions (14) of the insert which lie against the inner surface of said exhaust gas channel (6; 9) are soldered or welded to said inner surface.
7. An insert according to Claim 1, 2, 3, 4, 5 or 6, characterised in that the helical wire element is wound such as to form a cylindrical hollow portion (11) in the centre of the element.
8. An insert according to Claim 7, characterised in that an elongate cylindrical core (12) of a ceramic material is disposed in said cylindrical hollow portion (11).
PCT/SE2001/002337 2000-10-27 2001-10-25 Insert for an exhaust gas channel WO2002040839A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US10/381,358 US20040091402A1 (en) 2000-10-27 2001-10-25 Insert for an exhaust gas channel
JP2002543135A JP2004514086A (en) 2000-10-27 2001-10-25 Exhaust gas passage insert
AU2001296199A AU2001296199B2 (en) 2000-10-27 2001-10-25 Insert for an exhaust gas channel
AU9619901A AU9619901A (en) 2000-10-27 2001-10-25 Insert for an exhaust gas channel
EP01977049A EP1328712A1 (en) 2000-10-27 2001-10-25 Insert for an exhaust gas channel
NO20031882A NO20031882D0 (en) 2000-10-27 2003-04-25 Exhaust duct insert

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0003928-9 2000-10-27
SE0003928A SE517458C2 (en) 2000-10-27 2000-10-27 Insert in the exhaust duct for the creation of turbulent flow

Publications (1)

Publication Number Publication Date
WO2002040839A1 true WO2002040839A1 (en) 2002-05-23

Family

ID=20281607

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2001/002337 WO2002040839A1 (en) 2000-10-27 2001-10-25 Insert for an exhaust gas channel

Country Status (6)

Country Link
EP (1) EP1328712A1 (en)
JP (1) JP2004514086A (en)
AU (2) AU2001296199B2 (en)
NO (1) NO20031882D0 (en)
SE (1) SE517458C2 (en)
WO (1) WO2002040839A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016181353A1 (en) * 2015-05-13 2016-11-17 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Measuring apparatus having a device for generating clean air
US10329985B2 (en) 2017-06-27 2019-06-25 Tenneco Automotive Operating Company Inc. Impingement mixer for exhaust treatment

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5194231A (en) * 1988-11-28 1993-03-16 Citten Fluid Technology Limited Packing in or for a vessel
WO1999045247A1 (en) * 1998-03-06 1999-09-10 Vladimir Omarovich Tokarev Device for purifying exhaust gases

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5194231A (en) * 1988-11-28 1993-03-16 Citten Fluid Technology Limited Packing in or for a vessel
WO1999045247A1 (en) * 1998-03-06 1999-09-10 Vladimir Omarovich Tokarev Device for purifying exhaust gases

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016181353A1 (en) * 2015-05-13 2016-11-17 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Measuring apparatus having a device for generating clean air
US10695718B2 (en) 2015-05-13 2020-06-30 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Measuring apparatus having a device for generating clean air
US10329985B2 (en) 2017-06-27 2019-06-25 Tenneco Automotive Operating Company Inc. Impingement mixer for exhaust treatment

Also Published As

Publication number Publication date
JP2004514086A (en) 2004-05-13
EP1328712A1 (en) 2003-07-23
SE517458C2 (en) 2002-06-11
NO20031882L (en) 2003-04-25
AU9619901A (en) 2002-05-27
AU2001296199B2 (en) 2005-09-01
SE0003928L (en) 2002-04-28
NO20031882D0 (en) 2003-04-25
SE0003928D0 (en) 2000-10-27

Similar Documents

Publication Publication Date Title
US5177961A (en) Upstream collimator for electrically heatable catalytic converter
EP2007975B1 (en) A mixing device for an exhaust system
CN102027207B (en) Exhaust gas cleaning system, equipment and method
US10815856B2 (en) Catalytic converters having non-linear flow channels
JP4065023B2 (en) Catalyst body of traveling vehicle with internal combustion engine
US5110561A (en) Exhaust gas cleaning device
JP5563946B2 (en) Metal foil with microstructure
CA2059330A1 (en) Composite catalytic converter
US5307628A (en) Exhaust line allowing a faster triggering of the catalyst
AU2001296199B2 (en) Insert for an exhaust gas channel
US20040091402A1 (en) Insert for an exhaust gas channel
US20060257297A1 (en) Honeycomb body having at least one space-saving measurement sensor, and corresponding lambda sensor
AU2001296199A1 (en) Insert for an exhaust gas channel
AU736708B2 (en) Air flow-twisting device for an air inlet system of an internal combustion engine
US6663379B2 (en) Catalyzer
US20030185726A1 (en) Device for catalytic treatment of a gas flow
RU2134802C1 (en) Exhaust gas catalyst
KR102568991B1 (en) Exhaust gas heating arrangement
CN101316995A (en) Catalytic converter
JP2007513277A (en) Reduction of engine exhaust NOX
JP2020183703A (en) Ceramic heater and exhaust emission control device using the same
AU706566B2 (en) Emission control and/or silencer and/or separator and/or mixing apparatus
US20030202917A1 (en) Hydrocarbon trapping device
AU691775B2 (en) An exhaust muffler
JP2006329083A (en) Exhaust emission control device

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PH PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2001977049

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2001296199

Country of ref document: AU

WWE Wipo information: entry into national phase

Ref document number: 10381358

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 2002543135

Country of ref document: JP

WWP Wipo information: published in national office

Ref document number: 2001977049

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWG Wipo information: grant in national office

Ref document number: 2001296199

Country of ref document: AU

WWW Wipo information: withdrawn in national office

Ref document number: 2001977049

Country of ref document: EP