{
  "$type": "site.standard.document",
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  "description": "It effectively performs an air-system control at the time of an NOx purge or an SOx purge without using a lambda value of an exhaust gas. The exhaust purification system includes: an NOx reduction type catalyst (32) which is provided in an exhaust system of an internal combustion engine (10), and…",
  "path": "/patents/923857",
  "publishedAt": "2017-07-19T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01N11/007",
    "ISUZU MOTORS LTD [JP]"
  ],
  "textContent": "It effectively performs an air-system control at the time of an NOx purge or an SOx purge without using a lambda value of an exhaust gas. The exhaust purification system includes: an NOx reduction type catalyst (32) which is provided in an exhaust system of an internal combustion engine (10), and reduces and purifies NOx in an exhaust gas; and regeneration treatment units (60 and 70) which recover an NOx purification capacity of the NOx reduction type catalyst (32) by lowering an excess-air-ratio of the exhaust gas to a predetermined target excess-air-ratio. The regeneration treatment units (60 and 70) include target setting units (62 and 72) which set a target intake air amount required for setting the exhaust gas to the target excess-air-ratio based on a fuel injection amount of the internal combustion engine (10), and air-system controllers (64 and 74) which control at least one of an intake air amount and an exhaust recirculating amount in response to the target intake air amount input from the target setting units (62 and 72).",
  "title": "EXHAUST PURIFICATION SYSTEM AND CONTROL METHOD OF THE SAME"
}