{
  "$type": "site.standard.document",
  "description": "A fuel supply device includes a low-pressure fuel pump (8) for sucking fuel from a fuel tank (1), a high-pressure fuel pump (2) for pressurizing the sucked fuel, an accumulator (3) for accumulating the pressurized fuel, fuel injection valves (4) for directly injecting the fuel in the accumulator…",
  "path": "/patents/996484",
  "publishedAt": "2012-10-31T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D41/222",
    "NISSAN MOTOR [JP]"
  ],
  "textContent": "A fuel supply device includes a low-pressure fuel pump (8) for sucking fuel from a fuel tank (1), a high-pressure fuel pump (2) for pressurizing the sucked fuel, an accumulator (3) for accumulating the pressurized fuel, fuel injection valves (4) for directly injecting the fuel in the accumulator (3) into cylinders, a relief valve (17) for restricting an upper limit value of a fuel pressure in the accumulator (3), a high-pressure fuel pressure sensor (6) for detecting the fuel pressure in the accumulator (3), and a control unit (7) for setting a target fuel injection pressure, controlling the high-pressure fuel pump (2) so that the fuel pressure in the accumulator (3) reaches the target fuel injection pressure, and regarding the present target fuel injection pressure as a detection value of the high-pressure fuel pressure sensor (6) and setting the high-pressure fuel pump (2) in an operational state with a maximum discharge amount or a non-operational state when detecting an abnormality of the high-pressure fuel pressure sensor (6). This enables the fuel to be injected with an appropriate injection pulse width corresponding to an actual fuel pressure even if the high-pressure fuel pressure sensor (6) cannot detected the fuel pressure in the accumulator (3) due to disconnection or the like.",
  "title": "FUEL SUPPLY DEVICE FOR AN INTERNAL COMBUSTION ENGINE, AND FUEL SUPPLY CONTROL METHOD"
}