IT1261727B - Dispositivo di riscaldamento del catalizzatore per motori a combustione interna con un sistema a bruciatore. - Google Patents

Dispositivo di riscaldamento del catalizzatore per motori a combustione interna con un sistema a bruciatore.

Info

Publication number
IT1261727B
IT1261727B ITRM930829A ITRM930829A IT1261727B IT 1261727 B IT1261727 B IT 1261727B IT RM930829 A ITRM930829 A IT RM930829A IT RM930829 A ITRM930829 A IT RM930829A IT 1261727 B IT1261727 B IT 1261727B
Authority
IT
Italy
Prior art keywords
catalyst
internal combustion
heating device
combustion engines
burner system
Prior art date
Application number
ITRM930829A
Other languages
English (en)
Inventor
Gunter Hartel
Armin Schurfeld
Original Assignee
Pierburg 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 Pierburg Gmbh filed Critical Pierburg Gmbh
Publication of ITRM930829A0 publication Critical patent/ITRM930829A0/it
Publication of ITRM930829A1 publication Critical patent/ITRM930829A1/it
Application granted granted Critical
Publication of IT1261727B publication Critical patent/IT1261727B/it

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 ; Methods of operation or control of catalytic converters
    • F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • F01N3/2033—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using a fuel burner or 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
    • 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
    • F01N2240/14—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 fuel burner
    • 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

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

1. Dispositivo di riscaldamento del catalizzatore per motori a combustione interna con un sistema a bruciatore.2.1. Nei dispositivi di riscaldamento del genere si può verificare che il riscaldamento con un catalizzatore a funzionamento difettoso non esercita alcun effetto sul grado di riduzione delle sostanze nocive, per cui praticamente vengono espulse emissioni grezze.2.2. Il nuovo dispositivo di riscaldamento presenta invece caratteristiche, consistenti nel fatto che il catalizzatore è formato da due inserti, tra i quali si trova una camera,che i gas di scarico del bruciatore sboccano nella camera di catalizzazione, si mescolano in essa con il gas di scarico del motore a combustione interna e riscaldano in direzione di flusso il secondo inserto di catalizzatore.2.3. Con gli accorgimenti secondo l'invenzione, anche in caso di un catalizzatore già vecchio si ha un elevato grado di riduzione di sostanze nocive ossia una minore emissione di gas di scarico dopo l'avviamento a freddo del motore.
ITRM930829A 1993-03-17 1993-12-15 Dispositivo di riscaldamento del catalizzatore per motori a combustione interna con un sistema a bruciatore. IT1261727B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4308485 1993-03-17

Publications (3)

Publication Number Publication Date
ITRM930829A0 ITRM930829A0 (it) 1993-12-15
ITRM930829A1 ITRM930829A1 (it) 1995-06-15
IT1261727B true IT1261727B (it) 1996-05-30

Family

ID=6483037

Family Applications (1)

Application Number Title Priority Date Filing Date
ITRM930829A IT1261727B (it) 1993-03-17 1993-12-15 Dispositivo di riscaldamento del catalizzatore per motori a combustione interna con un sistema a bruciatore.

Country Status (5)

Country Link
US (1) US5457957A (it)
DE (1) DE4407002A1 (it)
FR (1) FR2702798B1 (it)
GB (1) GB2276098B (it)
IT (1) IT1261727B (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2356826B (en) * 1999-12-01 2003-10-29 Jaguar Cars Process for ageing a catalytic converter
DE10038724A1 (de) * 2000-08-09 2002-02-21 Porsche Ag Verfahren und Vorrichtung zur katalytischen Abgasnachbehandlung des Abgases einer Brennkraftmaschine
US7677028B2 (en) * 2006-02-28 2010-03-16 Caterpillar Inc. Particulate trap regeneration temperature control system
US11428181B2 (en) 2020-03-25 2022-08-30 Cummins Inc. Systems and methods for ultra-low NOx cold start warmup control and fault diagnosis

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3273971A (en) * 1963-09-26 1966-09-20 Oxy Catalyst Inc Apparatus for improving the purification of exhaust gases from an internal combustion engine
DE2046324A1 (de) * 1970-09-19 1972-03-23 Berger, Heinz, 3470 Höxter Vorrichtung zur Vernichtung der schädlichen Anteile der Abgase von Verbrennungsmotoren
DE2129023A1 (de) * 1971-06-11 1972-12-28 Volkswagenwerk Ag, 3180 Wolfsburg Anordnung zur Abgasreinigung
JPS4828820A (it) * 1971-08-17 1973-04-17
US3791143A (en) * 1971-11-10 1974-02-12 Engelhard Min & Chem Process and apparatus
GB2131321B (en) * 1982-12-01 1986-05-29 Lucas Ind Plc Engine system
DE4035971A1 (de) * 1990-11-12 1992-05-14 Emitec Emissionstechnologie Beheizbare katalysatoranordnung fuer die abgasreinigung von verbrennungsmotoren
US5425233A (en) * 1991-06-12 1995-06-20 Ford Motor Company Operation of an internal combustion engine
GB2261176A (en) * 1991-11-09 1993-05-12 Ford Motor Co Exhaust gas ignition
GB2260279A (en) * 1991-10-11 1993-04-14 Ford Motor Co Catalytic converter
DE69206154T2 (de) * 1991-10-11 1996-04-18 Ford Werke Ag Abgassystem.

Also Published As

Publication number Publication date
GB2276098B (en) 1996-11-13
DE4407002A1 (de) 1994-09-22
FR2702798A1 (fr) 1994-09-23
FR2702798B1 (fr) 1995-06-23
GB9400952D0 (en) 1994-03-16
US5457957A (en) 1995-10-17
GB2276098A (en) 1994-09-21
ITRM930829A0 (it) 1993-12-15
ITRM930829A1 (it) 1995-06-15

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19971128