{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "The pump assembly (10) has a shaft (38) with an eccentric (40) driving pistons (42-46) in cylinders (48-52). Each piston has an inlet valve (54-58) and an outlet valve (60-64). Two cylinders 180 degrees out of phase draw low-pressure fuel (18) from a first pipe junction (80) and deliver…",
  "path": "/patents/1092901",
  "publishedAt": "2003-10-01T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M55/04",
    "BOSCH GMBH ROBERT [DE]"
  ],
  "textContent": "The pump assembly (10) has a shaft (38) with an eccentric (40) driving pistons (42-46) in cylinders (48-52). Each piston has an inlet valve (54-58) and an outlet valve (60-64). Two cylinders 180 degrees out of phase draw low-pressure fuel (18) from a first pipe junction (80) and deliver high-pressure fuel to a second junction point (74). Fuel passes through a non-return valve (76) to a high-pressure reservoir (24). A third cylinder is 90 degrees out of phase with and directly delivers fuel to the inlet line (66) for the high-pressure reservoir. The system contains a pressure sensor (32) and a control valve (78) which may release high-pressure fuel back from the second junction point to the first.",
  "title": "High pressure fuel pump for a fuel system of an internal combustion engine"
}