{
  "$type": "site.standard.document",
  "description": "Pressurized fuel of a common rail (3) is introduced into a control chamber (121) of a fuel injector (1). An electromagnetic valve (1a) opens or closes a fuel discharge passage (205) of the control chamber (121) to adjust a hydraulic pressure of the control chamber (121). Through a switching leak…",
  "path": "/patents/1077494",
  "publishedAt": "2005-06-01T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M47/027",
    "DENSO CORP [JP]"
  ],
  "textContent": "Pressurized fuel of a common rail (3) is introduced into a control chamber (121) of a fuel injector (1). An electromagnetic valve (1a) opens or closes a fuel discharge passage (205) of the control chamber (121) to adjust a hydraulic pressure of the control chamber (121). Through a switching leak passage (2a), bubble-containing fuel directly returns from a valve opening (124) of the electromagnetic valve (1a) to a low-pressure return passage (212, 213) without passing through an armature chamber (132). Through a stationary leak passage (2b), the fuel leaking from every slide portion returns to the return passage (212, 213) via the armature chamber (132). A downstream portion (2b1) of the stationary leak passage (2b) opens to the upper portion (132a) of the armature chamber (132). A damper element (502a) is provided downstream of the electromagnetic valve (1a) in the return passage for canceling an increased fuel pressure.",
  "title": "Accumulator fuel injection apparatus"
}