{
  "$type": "site.standard.document",
  "description": "The invention relates to a high pressure fuel pump for an internal combustion engine having a cylinder (20), a plunger (2) slidably fitted in the cylinder (20) and a seal mechanism for blocking fuel leakage from an end of a sliding portion between the cylinder (20) and the plunger (2) and also for…",
  "path": "/patents/1098834",
  "publishedAt": "2003-01-22T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M59/102",
    "HITACHI LTD [JP]"
  ],
  "textContent": "The invention relates to a high pressure fuel pump for an internal combustion engine having a cylinder (20), a plunger (2) slidably fitted in the cylinder (20) and a seal mechanism for blocking fuel leakage from an end of a sliding portion between the cylinder (20) and the plunger (2) and also for preventing a lubricant for a driving mechanism of the plunger (2) from entering into the cylinder (20) from the end of the sliding portion of the cylinder (20) and the plunger (2). A holder (21) surrounding the end of the sliding portion of the cylinder (20) and the plunger (2) is provided. The seal mechanism comprises two mutually dependent seal devices mounted with a specific spacing in a longitudinal direction from the end of the sliding portion of the cylinder and the plunger along a circumference of the plunger.",
  "title": "High pressure fuel pump for internal combustion engine"
}