{
  "$type": "site.standard.document",
  "description": "A gas turbine engine (10) includes a first spool (16) associated with a primary combustor (70), a second spool (12) associated with a secondary combustor (84), and a third spool (14), each spool (12) including a compressor (24, 74, 18) and a turbine (26, 82, 20) mounted to a shaft (28, 76, 22). A…",
  "path": "/patents/1395825",
  "publishedAt": "2025-07-30T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02C3/107",
    "RTX CORP [US]"
  ],
  "textContent": "A gas turbine engine (10) includes a first spool (16) associated with a primary combustor (70), a second spool (12) associated with a secondary combustor (84), and a third spool (14), each spool (12) including a compressor (24, 74, 18) and a turbine (26, 82, 20) mounted to a shaft (28, 76, 22). A transmission (400) and accessory gearing (402) are enclosed within a housing (420) of an accessory gearbox (422). The transmission (400) rotationally couples the third spool (14) to the second spool (12) and accessory gearing (402). A method of operating the gas turbine engine (10) includes supplying a first fuel flow rate to the primary combustor (70) and supplying a second fuel flow rate to the secondary combustor (84) within an intermediate speed range of the gas turbine engine (10).",
  "title": "TRANSMISSION AND METHOD FOR CONTROL OF BOOST SPOOL"
}