{
  "$type": "site.standard.document",
  "description": "The fuel injection device has a fuel pump (10) for each cylinder of the internal combustion engine, which has a pump piston (18) driven by the internal combustion engine in a reciprocating motion, which delimits a pump working chamber (22) that is connected to a fuel injection valve (12) forming a…",
  "path": "/patents/1100147",
  "publishedAt": "2002-11-27T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M45/02",
    "BOSCH GMBH ROBERT [DE]"
  ],
  "textContent": "The fuel injection device has a fuel pump (10) for each cylinder of the internal combustion engine, which has a pump piston (18) driven by the internal combustion engine in a reciprocating motion, which delimits a pump working chamber (22) that is connected to a fuel injection valve (12) forming a structural unit with the fuel pump (10), which has an injection valve member (28) through which at least one injection opening (32) is controlled and which can be moved in the opening direction (29) against a closing force by the pressure generated in the pump working chamber (22), wherein a first electrically controlled control valve (60) is provided, through which a connection of the line (14) with a relief chamber (24) is controlled. A second electrically controlled control valve (64) is provided, through which a connection of a control pressure chamber (52) of the fuel injection valve (12) with the pump working chamber (22) is controlled, by which the injection valve member (28) is acted upon at least indirectly in the closing direction. Both control valves (60, 70) are controlled by a common actuator (64) which controls the pressure prevailing in an actuator pressure chamber (66), by which in each case a valve member (61, 71) of the control valves (60, 70) is acted upon.",
  "title": "Fuel injection system for internal combustion engine"
}