{
  "$type": "site.standard.document",
  "description": "A pressure-reduction valve (11) that returns fuel in a common rail (1) to a low-pressure system (9) is configured so that that an actuator (28) changes a valve-opening pressure of the valve device (21) into a target common rail pressure (PC0). Thus, when the actual common rail pressure (PCi) in the…",
  "path": "/patents/1068563",
  "publishedAt": "2006-04-05T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D41/3863",
    "DENSO CORP [JP]"
  ],
  "textContent": "A pressure-reduction valve (11) that returns fuel in a common rail (1) to a low-pressure system (9) is configured so that that an actuator (28) changes a valve-opening pressure of the valve device (21) into a target common rail pressure (PC0). Thus, when the actual common rail pressure (PCi) in the common rail (1) exceeds the target common rail pressure (PC0), the pressure-reduction valve (11) opens at once. On the contrary, when the actual common rail pressure (PCi) in the common rail decreases to reach the target common rail pressure (PC0), the pressure-reduction valve (11) closes at once. Accordingly, the pressure-reduction valve (11) limits an overshoot and an undershoot of the actual common rail pressure (PCi) to a minimum without being influenced by a fuel temperature or by detection timings of the common rail pressure sensor (16).",
  "title": "Common rail fuel injection system"
}