{
  "$type": "site.standard.document",
  "description": "There is provided an air pressurisation system 400 comprising: a blower compressor 420 configured to be mechanically coupled to a spool 440 of a gas turbine engine and configured to receive a first inlet flow of air from a bypass duct 22 of the gas turbine engine; an air treatment apparatus 460…",
  "path": "/patents/1397994",
  "publishedAt": "2025-12-03T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B64D13/02",
    "ROLLS ROYCE PLC [GB]"
  ],
  "textContent": "There is provided an air pressurisation system 400 comprising: a blower compressor 420 configured to be mechanically coupled to a spool 440 of a gas turbine engine and configured to receive a first inlet flow of air from a bypass duct 22 of the gas turbine engine; an air treatment apparatus 460 comprising an air cycle line 470 configured to condition air received from the blower compressor 420, and a bypass line 480 for receiving air from the blower compressor, and configured to bypass the air cycle line 470, wherein the air treatment apparatus 460 is configured to mix air from the air cycle line 470 with air from the bypass line 480 to control a temperature of air for discharge to an airframe system 450; and a core bleed line 410 configured to provide a second inlet flow of air from a compressor 412 of the gas turbine engine to the air treatment apparatus 460 in an augmented air supply mode of the air pressurisation system 400; wherein the core bleed line 410 is configured to provide the second inlet flow of air directly to the bypass line 480 or mix the second inlet flow of air with air from the blower compressor 420 upstream of the bypass line 480.",
  "title": "AIR PRESSURISATION SYSTEM"
}