{
  "$type": "site.standard.document",
  "description": "A fuel supply pump (1) comprises a low-pressure supply pump (15) for pumping up a low-pressure fuel, and a pump element (2) having a plunger (21) for increasing the pressure of the low-pressure fuel supplied into a pressure chamber (26) by the low-pressure supply pump. Part of the low-pressure fuel…",
  "path": "/patents/1083982",
  "publishedAt": "2004-09-15T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M59/102",
    "DENSO CORP [JP]"
  ],
  "textContent": "A fuel supply pump (1) comprises a low-pressure supply pump (15) for pumping up a low-pressure fuel, and a pump element (2) having a plunger (21) for increasing the pressure of the low-pressure fuel supplied into a pressure chamber (26) by the low-pressure supply pump. Part of the low-pressure fuel discharged from the low-pressure supply pump is supplied to a pump cam chamber (37) as a lubrication fuel for sliding portions in the pump cam chamber. Part of the lubrication fuel in the pump cam chamber is sucked in by the low-pressure supply pump from a fuel film portion (38). Therefore, the lubrication fuel can be forcibly supplied to the bearing portions using the low-pressure supply pump, and thus can be supplied in a uniform flow rate to the bearing portions, thereby stabilizing the lubricating conditions of the bearing portions.",
  "title": "Fuel supply pump which is lubricated by the fuel"
}