{
  "$type": "site.standard.document",
  "description": "Process for regulating a nitrogen oxides absorber catalyst (3) in an I.C. engine (1) comprises using a nitrogen oxides-sensitive measuring device (4) arranged in the direction of the exhaust gas stream behind the catalyst, and a control unit (5). The nitrogen oxides-sensitive measuring device…",
  "path": "/patents/1105651",
  "publishedAt": "2002-04-03T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B01D53/9495",
    "VOLKSWAGEN AG [DE]"
  ],
  "textContent": "Process for regulating a nitrogen oxides absorber catalyst (3) in an I.C. engine (1) comprises using a nitrogen oxides-sensitive measuring device (4) arranged in the direction of the exhaust gas stream behind the catalyst, and a control unit (5). The nitrogen oxides-sensitive measuring device determines the nitrogen oxides concentration in the exhaust gas, the amount of nitrogen oxides injected into the catalyst during the lean operation is determined by integration by means of the nitrogen oxides concentration signal, and the lean operation of the I.C. engine is stopped when the prescribed limit value of the injected nitrogen oxides is reached.",
  "title": "Control of an NOx-storage catalyst"
}