{
  "$type": "site.standard.document",
  "description": "The system has a pressure gradient detecting unit (32) to find pressure gradients in a cylinder during principal and control injection phases. A control quantity detecting unit (34) detects quantity of fuel injected in the cylinder to optimize criteria of the cylinder operation based on a ratio…",
  "path": "/patents/1080762",
  "publishedAt": "2005-01-12T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D35/023",
    "PEUGEOT CITROEN AUTOMOBILES SA [FR]"
  ],
  "textContent": "The system has a pressure gradient detecting unit (32) to find pressure gradients in a cylinder during principal and control injection phases. A control quantity detecting unit (34) detects quantity of fuel injected in the cylinder to optimize criteria of the cylinder operation based on a ratio between the gradients relative to the phases for optimizing operating noise of a diesel engine. The control quantity detecting unit (34) detects the quantity of fuel injected in the cylinder during the control injection for a preset quantity of fuel injected during principal injection.",
  "title": "System to control combustion noise of a diesel engine"
}