DE657631T1 - Dieselpartikelfilter. - Google Patents
Dieselpartikelfilter.Info
- Publication number
- DE657631T1 DE657631T1 DE0657631T DE94308550T DE657631T1 DE 657631 T1 DE657631 T1 DE 657631T1 DE 0657631 T DE0657631 T DE 0657631T DE 94308550 T DE94308550 T DE 94308550T DE 657631 T1 DE657631 T1 DE 657631T1
- Authority
- DE
- Germany
- Prior art keywords
- heating wire
- diesel particulate
- particulate filter
- filter
- shaped heating
- 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 claims 12
- 239000002184 metal Substances 0.000 claims 6
- 239000002245 particle Substances 0.000 claims 5
- 239000002131 composite material Substances 0.000 claims 4
- 239000000919 ceramic Substances 0.000 claims 1
- 229910010293 ceramic material Inorganic materials 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 230000001419 dependent effect Effects 0.000 claims 1
- 239000002657 fibrous material Substances 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 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
- F01N3/02—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2068—Other inorganic materials, e.g. ceramics
- B01D39/2082—Other inorganic materials, e.g. ceramics the material being filamentary or fibrous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2068—Other inorganic materials, e.g. ceramics
- B01D39/2082—Other inorganic materials, e.g. ceramics the material being filamentary or fibrous
- B01D39/2086—Other inorganic materials, e.g. ceramics the material being filamentary or fibrous sintered or bonded by inorganic agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/50—Means for discharging electrostatic potential
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
- B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/80—Chemical processes for the removal of the retained particles, e.g. by burning
- B01D46/84—Chemical processes for the removal of the retained particles, e.g. by burning by heating only
-
- 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
- F01N3/022—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 characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
-
- 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
- F01N3/022—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 characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
- F01N3/0226—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 characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous the structure being fibrous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
- B01D2279/30—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for treatment of exhaust gases from IC Engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S55/00—Gas separation
- Y10S55/10—Residue burned
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S55/00—Gas separation
- Y10S55/30—Exhaust treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Exhaust Gas After Treatment (AREA)
Claims (9)
1. Diesel-Teilchenfilter mit einem Filterkörper, der in einer Abgasanlage in einem Dieselmotor angeordnet und
geeignet ist, in einem durch dieselbe strömenden Abgas enthaltene Teilchen zu sammeln, und mit einem Heizdraht
(4) zum Aufheizen und Verbrennen der durch den Filterkörper gesammelten Teilchen,
dadurch gekennzeichnet, daß der Filterkörper eine
zusammengesetzte Filterplatte (1) aufweist, die aus dünnen Filterplatten (2) aus einem keramischen Faserraaterial und Metallnetzen (3) besteht, die auf die Außenflachen der dünnen Filterplatten (2) aufgebracht sind, wobei der Heizdraht (4) aus einem gitterförmigen Heizdraht (4) besteht, der in einem entgegengesetzten Zustand bezüglich der dünnen Filterplatten (2) angeordnet ist und einen den Strom selbststeuernde Wirkung zum Steuern der Größe eines elektrischen Stromes entsprechend einer Temperatur besitzt.
zusammengesetzte Filterplatte (1) aufweist, die aus dünnen Filterplatten (2) aus einem keramischen Faserraaterial und Metallnetzen (3) besteht, die auf die Außenflachen der dünnen Filterplatten (2) aufgebracht sind, wobei der Heizdraht (4) aus einem gitterförmigen Heizdraht (4) besteht, der in einem entgegengesetzten Zustand bezüglich der dünnen Filterplatten (2) angeordnet ist und einen den Strom selbststeuernde Wirkung zum Steuern der Größe eines elektrischen Stromes entsprechend einer Temperatur besitzt.
2. Diesel-Teilchenfilter nach Anspruch 1, bei welchem die zusammengesetzte Filterplatte (1) in Folge zu einem
faltenbalgartigen Aufbau gebogen ist.
Postbank Karlsruhe 76979-754 · Deutsche Bank AG Villingen (BLZ 69470039) 146332
VAT. No. DE 142989261
3. Diesel-Teilchenfilter nach Anspruch"1, bei welchem der
gitterförmige Heizdraht (4) zwischen einem Paar von benachbarten dünnen Filterplatten (2) gehalten ist.
4. Diesel-Teilchenfilter nach Anspruch 1, bei welchem der gitterartige Heizdraht (4) seitliche, parallel zueinander
zwischen einem Paar von Anschlüssen (5) verlaufende Metalldrähte (6) sowie die seitlichen Metalldrähte (6)
überschneidende parallel verlaufende Längs-Metalldrähte
(7) aufweist, wobei die seitlichen und Längs-Metalldrähte (6/7) an ihren Schnittstellen (12) miteinander verbunden
sind.
5. Diesel-Teilchenfilter nach Anspruch 1, bei welchem der " gitterförmige Heizdraht (4) auf denjenigen Oberflächen
der dünnen Filterplatten (2) vorgesehen ist, die sich auf der Zuströmseite der dünnen Filterplatten (2) in
einer Strömung eines Abgases befinden.
6. Diesel-Teilchenfilter nach Anspruch 1, bei welchem der
gitterförmige Heizdraht (4) aus einem Material mit einem hohen Widerstandstemperaturkoeffizienten hergestellt
ist, welches Ni als Hauptkomponente enthält und in der Lage ist, die Größe eines elektrischen Stromes in einem
Hochtemperaturbereich zu verringern und eine größere Menge von elektrischem Strom in einem Niedertemperaturbereich
zuzuführen.
7. Diesel-Teilchenfilter nach Anspruch l, bei welchem der
gitterförmige Heizdraht (4) zwischen zwei parallel angeordneten Anschlüssen (5,5) angeschlossen ist, wobei
die Größe eines dem gitterförmigen Heizdraht (4) zugeführten elektrischen Stromes in Abhängigkeit von der
Menge der auf der zusammengesetzten Filterplatte (1) gesammelten Teilchen gesteuert wird.
8. Diesel-Teilchenfilter nach Anspruch 1, bei welchem die
Außenflächen des gitterförmigen Heizdrahtes (4) und der Metallnetze (3) mit einem keramischen Material mit hoher
Wärmebeständigkeit und hoher Oxidationsbeständigkeit beschichtet sind.
9. Diesel-Teilchenfilter nach Anspruch 1, bei welchem ein Schalter (9) zum Ein- und Ausschalten des dem Heizdraht
(4) zugeführten elektrischen Stromes vorgesehen ist, wobei das Teilchenfilter eine Steuereinrichtung (10) zum
Steuern des Ein- und Ausschaltens des Schalters (9) in Abhängigkeit von der durch die zusammengesetzte Filterplatte
(1) gesammelten Teilchenmenge aufweist.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5340355A JP2707049B2 (ja) | 1993-12-09 | 1993-12-09 | ディーゼルパティキュレートフィルタ |
Publications (1)
Publication Number | Publication Date |
---|---|
DE657631T1 true DE657631T1 (de) | 1996-05-02 |
Family
ID=18336148
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE0657631T Pending DE657631T1 (de) | 1993-12-09 | 1994-11-18 | Dieselpartikelfilter. |
DE69406400T Expired - Fee Related DE69406400T2 (de) | 1993-12-09 | 1994-11-18 | Dieselpartikelfilter |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69406400T Expired - Fee Related DE69406400T2 (de) | 1993-12-09 | 1994-11-18 | Dieselpartikelfilter |
Country Status (4)
Country | Link |
---|---|
US (1) | US5780811A (de) |
EP (1) | EP0657631B1 (de) |
JP (1) | JP2707049B2 (de) |
DE (2) | DE657631T1 (de) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2219537A1 (en) * | 1996-10-22 | 1998-04-22 | Masataka Oji | Regenerative heater of diesel engine particulate trap and diesel engine particulate trap using the same heater |
WO2000038819A1 (en) * | 1997-07-18 | 2000-07-06 | Rypos, Inc. | Self-cleaning and self-sealing particle filter |
US6242712B1 (en) * | 1999-05-11 | 2001-06-05 | Phillips & Temro Industries Inc. | Air heater with perforated resistance element |
DE19929911C2 (de) * | 1999-06-29 | 2001-06-13 | Alfred Ernst Buck | Einrichtung zur Abgasbehandlung |
JP3921927B2 (ja) * | 2000-07-25 | 2007-05-30 | いすゞ自動車株式会社 | デイーゼル機関の排気微粒子除去フイルタ |
WO2002038245A1 (en) * | 2000-11-13 | 2002-05-16 | N.V. Bekaert S.A. | Electrical contact system |
SE522599C2 (sv) * | 2001-10-02 | 2004-02-24 | Absolent Ab | Filterenhet med flera filterelement |
DE10156696A1 (de) | 2001-11-17 | 2003-06-05 | Wirth Gabriele | Reinigungsgerät |
US6918941B2 (en) * | 2002-08-05 | 2005-07-19 | Battelle Energy Alliance, Llc | Cermet materials, self-cleaning cermet filters, apparatus and systems employing same |
US7022647B2 (en) * | 2002-08-05 | 2006-04-04 | Battelle Energy Alliance, Llc | Methods of fabricating cermet materials and methods of utilizing same |
US7468089B2 (en) * | 2002-11-04 | 2008-12-23 | Battelle Energy Alliance, Llc | Cermet materials |
US6865883B2 (en) | 2002-12-12 | 2005-03-15 | Detroit Diesel Corporation | System and method for regenerating exhaust system filtering and catalyst components |
DE10321975A1 (de) * | 2003-05-15 | 2004-12-02 | BSH Bosch und Siemens Hausgeräte GmbH | Reinigungsgerät, insbesondere Staubsauger, mit einer Keramikfiltereinrichtung |
DE10321955A1 (de) * | 2003-05-15 | 2004-12-02 | BSH Bosch und Siemens Hausgeräte GmbH | Keramikfilter und Reinigungsgerät, insbesondere Staubsauger |
US8549846B2 (en) * | 2006-03-24 | 2013-10-08 | GM Global Technology Operations LLC | Diesel particulate filter regeneration via resistive surface heating |
US8388741B2 (en) | 2007-08-14 | 2013-03-05 | GM Global Technology Operations LLC | Electrically heated particulate filter with reduced stress |
US8252077B2 (en) | 2007-09-17 | 2012-08-28 | GM Global Technology Operations LLC | Electrically heated particulate filter heater insulation |
EP2588721B1 (de) * | 2010-07-01 | 2016-10-19 | Rypos, Inc. | Integrierter diesel-partikelfilter |
CN102720571B (zh) * | 2012-07-11 | 2017-04-12 | 中国第一汽车股份有限公司 | 嵌片式尾气后处理用金属载体单元的制备方法 |
JP6766358B2 (ja) * | 2015-01-20 | 2020-10-14 | いすゞ自動車株式会社 | センサ |
WO2017011986A1 (zh) * | 2015-07-20 | 2017-01-26 | 赵兵 | 一种空气过滤装置 |
DE102015012557A1 (de) * | 2015-09-25 | 2017-03-30 | Webasto SE | Wärmetauscher und Fahrzeugheizgerät mit einem Wärmetauscher |
IT201800009700A1 (it) * | 2018-10-23 | 2020-04-23 | Bmc Srl | Veicolo dotato in aspirazione di un filtro aria riscaldabile e corrispondente filtro aria riscaldabile |
US11465092B2 (en) * | 2019-09-23 | 2022-10-11 | The Boeing Company | Particulate filter and methods for removing particulates from a particulate filter |
US11465091B2 (en) | 2019-09-23 | 2022-10-11 | The Boeing Company | Particulate filter and methods for removing particulates from a particulate filter |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2065760A (en) * | 1931-11-25 | 1936-12-29 | Smith John Hays | Electrical heating device |
US3344590A (en) * | 1966-09-14 | 1967-10-03 | American Air Filter Co | Unit filter assembly |
US3408794A (en) * | 1966-12-22 | 1968-11-05 | Edgar S. Stoddard | Filtering system and filter structure |
CA1137876A (en) * | 1977-06-20 | 1982-12-21 | Michael L. Noakes | Catalyst supports |
US4283207A (en) * | 1980-06-19 | 1981-08-11 | General Motors Corporation | Diesel exhaust filter-incinerator |
JPS57163112A (en) * | 1981-03-31 | 1982-10-07 | Toyota Motor Corp | Device for disposing particles in exhaust gas of diesel engine and method for manufacturing the same |
JPS58143815A (ja) * | 1982-02-17 | 1983-08-26 | Matsushita Electric Ind Co Ltd | 排ガスフイルタ |
US4423309A (en) * | 1982-06-28 | 1983-12-27 | General Motors Corporation | Quick heat self regulating electric glow heater |
US4455823A (en) * | 1982-10-20 | 1984-06-26 | General Motors Corporation | Diesel exhaust particulate trap with pleated filter |
DE8700787U1 (de) * | 1987-01-17 | 1987-10-22 | Gürtler, Johann, 6074 Rödermark | Rußfilter für Dieselmotoren |
JP2506853B2 (ja) * | 1987-11-25 | 1996-06-12 | 松下電器産業株式会社 | 調理器 |
JPH064707B2 (ja) * | 1987-11-30 | 1994-01-19 | 新神戸電機株式会社 | 紙基材−難燃性フェノール樹脂積層板の製造法 |
DE3744265C2 (de) * | 1987-12-24 | 1996-07-11 | Emitec Emissionstechnologie | Rußfilter zur Abgasreinigung in Kraftfahrzeugen |
JPH0362493A (ja) * | 1989-07-31 | 1991-03-18 | Riken Corp | 薄型ヒーター |
JPH03116722A (ja) * | 1989-09-28 | 1991-05-17 | Sony Corp | 埋込み型コンタクト部の形成方法 |
AU640722B2 (en) * | 1990-11-05 | 1993-09-02 | Asahi Tec Corporation | Method of producing a porous metal and a metal product using the same such as a catalyst carrier |
US5288975A (en) * | 1991-01-30 | 1994-02-22 | Ngk Insulators, Ltd. | Resistance adjusting type heater |
US5258164A (en) * | 1991-04-05 | 1993-11-02 | Minnesota Mining And Manufacturing Company | Electrically regenerable diesel particulate trap |
US5457945A (en) * | 1992-01-07 | 1995-10-17 | Pall Corporation | Regenerable diesel exhaust filter and heater |
US5250094A (en) * | 1992-03-16 | 1993-10-05 | Donaldson Company, Inc. | Ceramic filter construction and method |
US5298046A (en) * | 1993-01-06 | 1994-03-29 | Minnesota Mining And Manufacturing Company | Diesel particulate filter element and filter |
US5475203A (en) * | 1994-05-18 | 1995-12-12 | Gas Research Institute | Method and woven mesh heater comprising insulated and noninsulated wire for fusion welding of plastic pieces |
-
1993
- 1993-12-09 JP JP5340355A patent/JP2707049B2/ja not_active Expired - Lifetime
-
1994
- 1994-11-18 DE DE0657631T patent/DE657631T1/de active Pending
- 1994-11-18 EP EP94308550A patent/EP0657631B1/de not_active Expired - Lifetime
- 1994-11-18 DE DE69406400T patent/DE69406400T2/de not_active Expired - Fee Related
-
1996
- 1996-11-19 US US08/751,937 patent/US5780811A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2707049B2 (ja) | 1998-01-28 |
US5780811A (en) | 1998-07-14 |
DE69406400T2 (de) | 1998-03-19 |
DE69406400D1 (de) | 1997-11-27 |
EP0657631B1 (de) | 1997-10-22 |
JPH07158421A (ja) | 1995-06-20 |
EP0657631A1 (de) | 1995-06-14 |
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