{
  "$type": "site.standard.document",
  "description": "The method involves determining the possibility of occurrence of knocking by sensor, such as methane number sensor (2) and knock sensor (6), and recirculating cooled exhaust gas during occurrence or possible occurrence of the knocking. The knock sensor is provided for sensing the occurrence of…",
  "path": "/patents/991167",
  "publishedAt": "2013-05-01T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D19/029",
    "VAILLANT GMBH [DE]"
  ],
  "textContent": "The method involves determining the possibility of occurrence of knocking by sensor, such as methane number sensor (2) and knock sensor (6), and recirculating cooled exhaust gas during occurrence or possible occurrence of the knocking. The knock sensor is provided for sensing the occurrence of knocking. The quantity or percentage of the cooled exhaust gas is increased in control cycle during occurrence of knocking, and is reduced during absence of knocking. The methane number sensor is provided for determining the methane number of the fuel gas. The quantity or percentage of the recirculated cooled exhaust gas is determined on the basis of determined methane number.",
  "title": "Method for knock control of an internal combustion engine"
}