{
  "$type": "site.standard.document",
  "description": "The circuit has a mechanical low pressure-prefeed pump (2) sucking fuel from a fuel tank (4), where the fuel is supplied to a low pressure region of a high pressure pump (1) via a fuel line. A dosing unit (10) is arranged in the region. A zero-delivery line with a zero-delivery throttle (14) is…",
  "path": "/patents/977248",
  "publishedAt": "2014-03-19T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M37/0029",
    "BOSCH GMBH ROBERT [DE]"
  ],
  "textContent": "The circuit has a mechanical low pressure-prefeed pump (2) sucking fuel from a fuel tank (4), where the fuel is supplied to a low pressure region of a high pressure pump (1) via a fuel line. A dosing unit (10) is arranged in the region. A zero-delivery line with a zero-delivery throttle (14) is branched downstream of the dosing unit. An overflow line with an overflow valve (6) is branched upstream of the dosing unit. A non-return valve (16) is arranged in the zero-delivery line for selective opening or blocking of the zero-delivery line, and switched between open and closed positions. The mechanical low pressure-prefeed pump is an internal gear pump.",
  "title": "Low pressure circuit for a fuel injection system"
}