{
  "$type": "site.standard.document",
  "description": "A diagnostic system for monitoring catalyst performance in an exhaust system comprises a plurality of treatment devices (20,30,50,70,80) catalytically treating an exhaust gas stream, and a plurality of gas sensors (10,40,60) for monitoring the catalyst performance of the treatment devices…",
  "path": "/patents/1098167",
  "publishedAt": "2003-02-26T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B01D53/9431",
    "DELPHI TECH INC [US]"
  ],
  "textContent": "A diagnostic system for monitoring catalyst performance in an exhaust system comprises a plurality of treatment devices (20,30,50,70,80) catalytically treating an exhaust gas stream, and a plurality of gas sensors (10,40,60) for monitoring the catalyst performance of the treatment devices (20,30,50,70,80) to determine when sulfur poisoning occurs. An on-board diagnostic system receives signals from the gas sensors (10,40,60), and, based upon response time differentials between sensors (10,40,60), determines whether the treatment devices (20,30,50,70,80) are experiencing sulfur poisoning.",
  "title": "Diagnostic system for monitoring catalyst performance"
}