{
  "$type": "site.standard.document",
  "description": "A fuel injection pump, comprising a plurality of plungers and a cam shaft having a plurality of drive cams (31, 32) installed in correspondence with the plungers, wherein the cam shaft is rotated by a power from the outside so as to reciprocate the plurality of plungers by the corresponding drive…",
  "path": "/patents/1099582",
  "publishedAt": "2003-01-02T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M59/08",
    "BOSCH AUTOMOTIVE SYSTEMS CORP [JP]"
  ],
  "textContent": "A fuel injection pump, comprising a plurality of plungers and a cam shaft having a plurality of drive cams (31, 32) installed in correspondence with the plungers, wherein the cam shaft is rotated by a power from the outside so as to reciprocate the plurality of plungers by the corresponding drive cams, and fuel is pressurized and force-fed in the forward moving process of each plunger, and a fuel feeding device using the fuel pump; wherein all or a part of the drive cams (31, 32) are installed with the phase thereof shifted, and the cam lobes (31a, 32a) of the drive cams are formed asymmetrical so that the amount of displacement of the plungers relative to a unit cam rotating angle is reduced ion the forward moving process more than in the backward moving process of the plunger, whereby a pressure variation in a common rail is reduced, the pressure resistance of an entire system is lowered, and a drive torque is reduced so as to reduce the load and noise of a drive system.",
  "title": "FUEL PUMP AND FUEL FEEDING DEVICE USING THE FUEL PUMP"
}