{
  "$type": "site.standard.document",
  "description": "An aircraft propulsion system fuel system (224) comprises a fuel line (217) configured to receive liquid hydrogen fuel from a fuel tank (104), a vaporizer (612) configured to vaporize liquid hydrogen fuel from the fuel line to generate a supercritical or gaseous fuel, a main fuel pump (618)…",
  "path": "/patents/1392624",
  "publishedAt": "2026-02-04T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B64D37/30",
    "ROLLS ROYCE PLC [GB]"
  ],
  "textContent": "An aircraft propulsion system fuel system (224) comprises a fuel line (217) configured to receive liquid hydrogen fuel from a fuel tank (104), a vaporizer (612) configured to vaporize liquid hydrogen fuel from the fuel line to generate a supercritical or gaseous fuel, a main fuel pump (618) configured to receive and to pump the gaseous or supercritical fuel from the vaporizer during operation of the propulsion system, and a heater (620) provided downstream in fuel flow to the main fuel pump (618), and configured to raise the temperature of the gaseous or supercritical fuel to a propulsion system delivery temperature.",
  "title": "AIRCRAFT ENGINE FUEL SYSTEM"
}