{
  "$type": "site.standard.document",
  "description": "An internal combustion engine fuel pump (4) having at least one cylinder (11), in which a variable-volume pump chamber (22) is defined; a movable piston (12) defining the bottom of the pump chamber (22); at least one intake valve (26) communicating with the pump chamber (22); at least one delivery…",
  "path": "/patents/1070469",
  "publishedAt": "2006-02-01T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M59/105",
    "MAGNETI MARELLI HOLDING S P A [IT]"
  ],
  "textContent": "An internal combustion engine fuel pump (4) having at least one cylinder (11), in which a variable-volume pump chamber (22) is defined; a movable piston (12) defining the bottom of the pump chamber (22); at least one intake valve (26) communicating with the pump chamber (22); at least one delivery valve (27) communicating with the pump chamber (22); and a hydraulic/pneumatic actuating device (13) for moving the piston (12) back and forth with respect to the cylinder (11) to cyclically vary the volume of the pump chamber (22); the hydraulic/pneumatic actuating device has a first actuating chamber (34) located beneath the pump chamber (22), a second actuating chamber (37) located above the first actuating chamber (34), and a control member (47) for cyclically filling the first actuating chamber (34) with pressurized oil.",
  "title": "Internal combustion engine hydraulic fuel pump"
}