{
  "$type": "site.standard.document",
  "description": "Method for monitoring combustion in a gas burner, especially a natural gas burner, whereby the gas to air ratio is measured and evaluated in an evaluation unit. If a change in the gas constitution occurs a correction signal for the calorific value is produced based on a correlation with the…",
  "path": "/patents/1083166",
  "publishedAt": "2004-10-13T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D17/04",
    "E ON RUHRGAS AG [DE]"
  ],
  "textContent": "Method for monitoring combustion in a gas burner, especially a natural gas burner, whereby the gas to air ratio is measured and evaluated in an evaluation unit. If a change in the gas constitution occurs a correction signal for the calorific value is produced based on a correlation with the measured gas-air or lambda ratio. A probe is used to measure either the oxygen or carbon dioxide content in the exhaust gas. An independent claim is made for a method for monitoring combustion of natural gas in a burner that is equipped with an emissions reduction plant, whereby the gas-air ratio is measured and compared with a set value. If the measured value exceeds the set value by more that a threshold a warning is issued and or the burner is shut down to prevent harmful emissions.",
  "title": "Method for controlling the combustion in a combustion device"
}