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EP1108862A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Method and apparatus for reducing harmful constituents of exhaust gas of a combustion engine

Assignee: Volkswagen AG
•
Filing: 2000-12-05
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Granted: —
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Expires: 2020-12-05
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Abstract

Abstract Translated from German In einem Verfahren zum Betreiben einer kontinuierlich reduzierenden Partikelminderungsvorrichtung einer Brennkraftmaschine (1), insbesondere einer Diesel-Brennkraftmaschine, die in einer Abgasleitung (3) in Strömungsrichtung (5) hintereinander einen Oxidationskatalysator (6) und nachfolgend einen Partikelfilter (7) aufweist, wird der NOx-Anteil des Abgases angehoben wird, wenn der Partikelfilter (7) eine vorbestimmte obere Schwelle der Beladung überschreitet. Nach dem Unterschreiten einer unteren Schwelle der Beladung des Partikelfilters wird der NOx-Anteil wieder abgesenkt. In a method for operating a continuously reducing particle reduction device of an internal combustion engine (1), in particular a diesel internal combustion engine, which in an exhaust pipe (3) in the flow direction (5) has an oxidation catalytic converter (6) and subsequently a particle filter (7) NOx portion of the exhaust gas is raised when the particle filter (7) exceeds a predetermined upper threshold of the load. After falling below a lower threshold of the loading of the particle filter, the NOx content is reduced again.

Inventors

  • 👤 Ekkehard Dr. Pott
  • 👤 Kurt Dipl.-Ing. Weidmann

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-07 21:01
CPC Classifications
F; F01; F01N; F01N9/00; F01N9/002; B; B01; B01D; B01D53/00; B01D53/34; B01D53/92; B01D53/94; B01D53/9404; B01D53/9409; B01D53/9431; B01D53/9495; F01N13/00; F01N13/009; F01N3/00; F01N3/02; F01N3/021; F01N3/023; F01N3/0231; F01N3/033; F01N3/035; F01N9/005; F02; F02D; F02D21/00; F02D21/06; F02D21/08; F02D41/00; F02D41/02; F02D41/021; F02D41/0235; F02D41/027; F02D41/029; F02D2200/00; F02D2200/02; F02D2200/08; F02D2200/0812; F02D2250/00; F02D2250/36; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/40

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