NO304502B1 - Avgassrensesystem for reduksjon av hydrokarbonutslipp under kaldstart av forbrenningsmotorer - Google Patents

Avgassrensesystem for reduksjon av hydrokarbonutslipp under kaldstart av forbrenningsmotorer

Info

Publication number: NO304502B1
Authority: NO; Norway
Prior art keywords: exhaust gas; cold start; internal combustion; combustion engines; cleaning system
Prior art date: 1992-11-27

Application number

NO934269A

Other languages

English (en)

Norwegian (no)

Other versions

NO934269D0 (no

NO934269L (no

Inventor

Dieter Lindner

Egbert Lox

Bernd Engler

Klaus Ostgathe

Original Assignee

Degussa

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.)

1992-11-27

Filing date

1993-11-25

Publication date

1999-01-04

1993-11-25 Application filed by Degussa filed Critical Degussa

1993-11-25 Publication of NO934269D0 publication Critical patent/NO934269D0/no

1994-05-30 Publication of NO934269L publication Critical patent/NO934269L/no

1999-01-04 Publication of NO304502B1 publication Critical patent/NO304502B1/no

Links

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9481—Catalyst preceded by an adsorption device without catalytic function for temporary storage of contaminants, e.g. during cold start
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0454—Controlling adsorption
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features 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
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0814—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts
- 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
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
- F01N3/0835—Hydrocarbons
- 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
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0871—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents using means for controlling, e.g. purging, the absorbents or adsorbents
- 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
- F01N2250/00—Combinations of different methods of purification
- F01N2250/12—Combinations of different methods of purification absorption or adsorption, and catalytic conversion
- 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
- F01N2370/00—Selection of materials for exhaust purification
- F01N2370/02—Selection of materials for exhaust purification used in catalytic reactors
- F01N2370/04—Zeolitic material
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B1/00—Engines characterised by fuel-air mixture compression
- F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
- F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
- 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

Landscapes

Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Combustion & Propulsion (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Chemical Kinetics & Catalysis (AREA)
Analytical Chemistry (AREA)
General Chemical & Material Sciences (AREA)
Oil, Petroleum & Natural Gas (AREA)
Environmental & Geological Engineering (AREA)
Biomedical Technology (AREA)
Materials Engineering (AREA)
Health & Medical Sciences (AREA)
Exhaust Gas After Treatment (AREA)
Exhaust Gas Treatment By Means Of Catalyst (AREA)
Separation Of Gases By Adsorption (AREA)
Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Catalysts (AREA)
Curing Cements, Concrete, And Artificial Stone (AREA)
Incineration Of Waste (AREA)
Cleaning Or Drying Semiconductors (AREA)
Nozzles For Electric Vacuum Cleaners (AREA)
Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)

NO934269A 1992-11-27 1993-11-25 Avgassrensesystem for reduksjon av hydrokarbonutslipp under kaldstart av forbrenningsmotorer NO304502B1 (no)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE4239875A DE4239875C2 (de)	1992-11-27	1992-11-27	Abgasreinigungssystem zur Verminderung der Kohlenwasserstoff-Emissionen während des Kaltstarts von Verbrennungskraftmaschinen

Publications (3)

Publication Number	Publication Date
NO934269D0 NO934269D0 (no)	1993-11-25
NO934269L NO934269L (no)	1994-05-30
NO304502B1 true NO304502B1 (no)	1999-01-04

Family

ID=6473778

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NO934269A NO304502B1 (no)	1992-11-27	1993-11-25	Avgassrensesystem for reduksjon av hydrokarbonutslipp under kaldstart av forbrenningsmotorer

Country Status (18)

Country	Link
EP (1)	EP0601314B1 (pl)
JP (1)	JP3816113B2 (pl)
KR (1)	KR100283341B1 (pl)
CN (1)	CN1096712A (pl)
AT (1)	ATE157557T1 (pl)
AU (1)	AU666235B2 (pl)
BR (1)	BR9304864A (pl)
CA (1)	CA2110139C (pl)
CZ (1)	CZ288516B6 (pl)
DE (2)	DE4239875C2 (pl)
ES (1)	ES2108797T3 (pl)
FI (1)	FI104749B (pl)
HU (1)	HU212892B (pl)
MX (1)	MX9307424A (pl)
NO (1)	NO304502B1 (pl)
PL (1)	PL174499B1 (pl)
TW (1)	TW303307B (pl)
ZA (1)	ZA938864B (pl)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5492679A (en) *	1993-03-08	1996-02-20	General Motors Corporation	Zeolite/catalyst wall-flow monolith adsorber
DE4436890A1 (de) *	1994-10-15	1996-04-18	Degussa	Verfahren zur gleichzeitigen Verminderung der im Abgas einer Verbrennungskraftmaschine enthaltenen Kohlenwasserstoffe, Kohlenmonoxid und Stickoxide
EP0716877A1 (en) *	1994-12-13	1996-06-19	Johnson Matthey Public Limited Company	Catalytic purification of engine exhaust gas
US5510086A (en) *	1995-04-10	1996-04-23	General Motors Corporation	Adcat exhaust treatment device
US6696389B1 (en)	1996-02-23	2004-02-24	Daimlerchrysler Ag	Process and apparatus for cleaning a gas flow
DE19614540A1 (de) *	1996-04-12	1997-10-16	Degussa	Dieselkatalysator
EP0842700B1 (de) *	1996-11-11	1999-03-24	Degussa Ag	Abgasreinigungskatalysator mit Verbessertem Umsatz für Kohlenwasserstoffe
JP3417309B2 (ja) *	1997-10-28	2003-06-16	トヨタ自動車株式会社	炭化水素吸着材
TR200002521T2 (tr) *	1997-11-30	2001-04-20	Wwu Wissenschaftliche Werkstatt F�R Umweltmesstechnik Gmbh	Egzostaki zaralı madde mürekkipleri ölçülmesi ve motör soğukken işletme ve seyir esnasında çok yüksek zararlı madde emisyonlarının azaltılması.
WO2000024507A1 (en) *	1998-10-28	2000-05-04	Toyota Jidosha Kabushiki Kaisha	Adsorbent for hydrocarbon and catalyst for exhaust gas purification
DE10023049B4 (de) *	2000-05-11	2008-04-30	Volkswagen Ag	Verfahren zur Bestimmung eines Montagepunktes eines Vorkatalysators im Abgasstrang der Verbrennungskraftmaschine
ES2182721B1 (es) *	2001-07-27	2004-01-16	Univ Valencia Politecnica	Un sistema catalitico para disminuir emisiones de compuestos organicos volatiles en gases de combustion.
FR2841937B1 (fr)	2002-07-08	2006-07-14	Faurecia Sys Echappement	Generateur de puissance mecanique comportant un moteur diesel et un convertisseur catalytique
JP4507018B2 (ja) *	2008-06-27	2010-07-21	三菱自動車工業株式会社	内燃機関の排気浄化装置
DE102013210270A1 (de)	2013-06-03	2014-12-04	Umicore Ag & Co. Kg	Dreiwegkatalysator
CN105682792B (zh)	2013-10-30	2019-07-09	庄信万丰股份有限公司	包含含银挤出沸石基材的三元催化剂及其在排气系统中的用途
DE102014204682A1 (de)	2014-03-13	2015-10-01	Umicore Ag & Co. Kg	Katalysatorsystem zur Reduzierung von Schadgasen aus Benzinverbrennungsmotoren
CN104307476A (zh) *	2014-11-05	2015-01-28	上海纳米技术及应用国家工程研究中心有限公司	一种低浓度碳氢化合物气体吸附剂的制备方法
EP3881932A1 (en)	2015-06-29	2021-09-22	Corning Incorporated	Porous ceramic body to reduce emissions
US9987626B2 (en) *	2015-08-20	2018-06-05	Ford Global Technologies, Llc	Use of transition metals to reduce cold start emissions
US9879587B2 (en) *	2015-10-23	2018-01-30	GM Global Technology Operations LLC	Diagnosing oxidation catalyst device with hydrocarbon storage
US10898886B2 (en)	2016-08-26	2021-01-26	Ford Global Technologies, Llc	Hydrocarbon and nitrogen oxides catalyst trap

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH0615016B2 (ja) *	1988-09-09	1994-03-02	トヨタ自動車株式会社	自動車排気ガス浄化装置
JPH0625538B2 (ja) *	1989-10-24	1994-04-06	ニチアス株式会社	メタノールエンジンの排気浄化装置
JPH03141816A (ja) *	1989-10-27	1991-06-17	Toyota Motor Corp	排気ガス浄化装置
US5078979A (en) *	1990-07-20	1992-01-07	Uop	Molecular sieve bed/catalyst to treat automotive exhaust
US5296198A (en) *	1990-11-09	1994-03-22	Ngk Insulators, Ltd.	Heater and catalytic converter
DE4236271C2 (de) *	1991-10-28	1994-09-22	Toyota Motor Co Ltd	Abgasemissionssteuervorrichtung unter Einsatz eines katalytischen Konverters mit einem Kohlenwasserstoffadsorptionsmittel
DE4226394C2 (de) *	1992-08-10	1999-01-21	Degussa	Verfahren zur katalytischen Autoabgasreinigung mit verbessertem Kaltstartverhalten

1992
- 1992-11-27 DE DE4239875A patent/DE4239875C2/de not_active Expired - Lifetime
1993
- 1993-10-16 TW TW082108612A patent/TW303307B/zh active
- 1993-10-20 DE DE59307263T patent/DE59307263D1/de not_active Expired - Lifetime
- 1993-10-20 EP EP93116921A patent/EP0601314B1/de not_active Expired - Lifetime
- 1993-10-20 ES ES93116921T patent/ES2108797T3/es not_active Expired - Lifetime
- 1993-10-20 AT AT93116921T patent/ATE157557T1/de not_active IP Right Cessation
- 1993-11-24 HU HU9303345A patent/HU212892B/hu not_active IP Right Cessation
- 1993-11-25 NO NO934269A patent/NO304502B1/no not_active IP Right Cessation
- 1993-11-25 CN CN93114721A patent/CN1096712A/zh active Pending
- 1993-11-26 AU AU51988/93A patent/AU666235B2/en not_active Ceased
- 1993-11-26 BR BR9304864A patent/BR9304864A/pt not_active IP Right Cessation
- 1993-11-26 KR KR1019930025379A patent/KR100283341B1/ko not_active Expired - Lifetime
- 1993-11-26 CZ CZ19932559A patent/CZ288516B6/cs not_active IP Right Cessation
- 1993-11-26 PL PL93301228A patent/PL174499B1/pl unknown
- 1993-11-26 JP JP29651693A patent/JP3816113B2/ja not_active Expired - Lifetime
- 1993-11-26 FI FI935278A patent/FI104749B/fi active
- 1993-11-26 ZA ZA938864A patent/ZA938864B/xx unknown
- 1993-11-26 MX MX9307424A patent/MX9307424A/es not_active IP Right Cessation
- 1993-11-26 CA CA002110139A patent/CA2110139C/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
ZA938864B (en)	1994-08-02
PL301228A1 (en)	1994-05-30
JP3816113B2 (ja)	2006-08-30
CZ288516B6 (cs)	2001-07-11
HUT70018A (en)	1995-09-28
MX9307424A (es)	1994-07-29
TW303307B (pl)	1997-04-21
AU666235B2 (en)	1996-02-01
PL174499B1 (pl)	1998-08-31
DE4239875C2 (de)	1999-02-11
HU9303345D0 (en)	1994-03-28
AU5198893A (en)	1994-06-09
CN1096712A (zh)	1994-12-28
FI104749B (fi)	2000-03-31
CA2110139A1 (en)	1994-05-28
HU212892B (en)	1996-12-30
FI935278L (fi)	1994-05-28
KR100283341B1 (ko)	2001-03-02
ES2108797T3 (es)	1998-01-01
JPH06210136A (ja)	1994-08-02
CZ255993A3 (en)	1994-06-15
NO934269D0 (no)	1993-11-25
FI935278A0 (fi)	1993-11-26
EP0601314B1 (de)	1997-09-03
EP0601314A1 (de)	1994-06-15
BR9304864A (pt)	1994-05-31
DE59307263D1 (de)	1997-10-09
CA2110139C (en)	1999-03-23
ATE157557T1 (de)	1997-09-15
NO934269L (no)	1994-05-30
DE4239875A1 (de)	1994-06-01

Legal Events

Date	Code	Title	Description
2003-06-30	MM1K	Lapsed by not paying the annual fees	Free format text: LAPSED IN MAY 2003

Publication	Publication Date	Title
NO934269L (no)	1994-05-30	Avgassrensesystem for reduksjon av hydrokarbonutslipp under kaldstart av forbrenningsmotorer
EP0830201B2 (en)	2006-05-24	Diesel engine exhaust gas purification system
EP1313934B1 (en)	2006-10-18	Exhaust system for lean-burn engines
WO2005047663A3 (en)	2005-06-23	Emissions treatment system with nsr and scr catalysts
CA2257949A1 (en)	1997-12-18	Exhaust gas purification apparatus of internal combustion engine and catalyst for purifying exhaust gas of internal combustion engine
WO1997031705A3 (de)	1997-12-24	Verfahren und vorrichtung zur abgasreinigung
RU2009135076A (ru)	2011-03-27	Катализаторная система и ее применение
KR950033013A (ko)	1995-12-22	NOx 촉매를 장착한 연료분산 제어방법 및 장치
UA27233C2 (uk)	2000-08-15	Спосіб каталітичного очищення автомобільних відпрацьованих газів під час холодного пуску двигуна
EP1783336A1 (en)	2007-05-09	Vehicle exhaust after treatment system
SE9800473D0 (sv)	1998-02-18	Förfarande för avgasrening jämte gasbrännare
KR20090094466A (ko)	2009-09-07	희박 연소 엔진용 배기 방출 제어 시스템 및 시스템 동작 방법
CA2522531A1 (en)	2004-11-04	Method of decomposing nitrogen dioxide
WO2023158798A1 (en)	2023-08-24	Device for the reduction of ammonia and nitrogen oxides emissions
JPH05195756A (ja)	1993-08-03	エンジンの排ガス浄化装置
JP2001140630A (ja)	2001-05-22	内燃機関の排ガス浄化装置
RU93052386A (ru)	1996-03-10	Система нейтрализации отработавших газов для снижения углеводородных выбросов во время холодного пуска двигателей внутреннего сгорания
JP3218672B2 (ja)	2001-10-15	内燃機関の排気浄化装置
Lafyatis et al.	1999	The use of catalysts with ambient temperature activity for the control of cold-start automotive emissions
KR960034672A (ko)	1996-10-24	린-버언(Lean-burn) 엔진을 가능케 하는 3-베드(bed) 촉매 컨버어터(catalytic converter)
Lxtkemeyer et al.	1996	Comparison of De-NoDx and Adsorber-Catalysts to Reduce NoDx Emissions of Lean-Burn Gasoline Engines
MX9800511A (es)	1998-05-31	Metodo para reducir las emisiones dañinas que provienen de motores diesel.
RO111999B1 (ro)	2002-07-30	Procedeu pentru purificarea gazelor de evacuare de la motoarele cu ardere internă