{
  "$type": "site.standard.document",
  "description": "This disclosure relates to a method and system for controlling pressure in a pressure accumulator, such as a common rail, of a fuel injection system in the event of valve failure during cranking. The method comprises the steps of monitoring the speed of the engine and the valve to determine a fault…",
  "path": "/patents/1011912",
  "publishedAt": "2011-06-15T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D41/06",
    "PERKINS ENGINES CO LTD [GB]"
  ],
  "textContent": "This disclosure relates to a method and system for controlling pressure in a pressure accumulator, such as a common rail, of a fuel injection system in the event of valve failure during cranking. The method comprises the steps of monitoring the speed of the engine and the valve to determine a fault which would cause the valve to remain open. When such a fault is detected, and the engine speed is in a predetermined cranking range, the continuous activation and deactivation of one or more injectors is effected. The duration and frequency of the activation is such as to enable fuel to leak from the injectors into a fuel return path without injection into the combustion chambers to reduce pressure in the accumulator. The system comprises means for effecting the method.",
  "title": "A method and system for controlling pressure in a pressure accumulator"
}