{
  "$type": "site.standard.document",
  "description": "A fuel system comprises a fuel pump (10) operable to deliver fuel through a supply line (14) to a pressure raising valve (18), the pressure raising valve (18) including a control chamber (32), the fuel pressure within the control chamber (32) controlling a minimum pump pressure differential, and an…",
  "path": "/patents/991800",
  "publishedAt": "2013-04-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02C7/232",
    "ROLLS ROYCE ENGINE CONTROL SYSTEMS LTD [GB]"
  ],
  "textContent": "A fuel system comprises a fuel pump (10) operable to deliver fuel through a supply line (14) to a pressure raising valve (18), the pressure raising valve (18) including a control chamber (32), the fuel pressure within the control chamber (32) controlling a minimum pump pressure differential, and an actuator control servo-valve (60) operable to control the supply of fuel from the supply line (14) to an actuator control line (56, 58), wherein the actuator control servo-valve (60) further controls the pressure of fuel applied to the control chamber (32) of the pressure raising valve (18).",
  "title": "Fuel system of a jet engine"
}