{
  "$type": "site.standard.document",
  "description": "The present disclosure relates to gearboxes for aircraft gas turbine engines, in particular to arrangements for journal bearings such gearboxes, and to related methods of operating such gearboxes and gas turbine engines. Example embodiments include a gearbox (30) for an aircraft gas turbine engine…",
  "path": "/patents/1417279",
  "publishedAt": "2024-12-25T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02C3/107",
    "ROLLS ROYCE PLC [GB]"
  ],
  "textContent": "The present disclosure relates to gearboxes for aircraft gas turbine engines, in particular to arrangements for journal bearings such gearboxes, and to related methods of operating such gearboxes and gas turbine engines. Example embodiments include a gearbox (30) for an aircraft gas turbine engine, the gearbox (30) comprising: a sun gear (28); a plurality of planet gears (32) surrounding and engaged with the sun gear (28); and a ring gear (38) surrounding and engaged with the plurality of planet gears (32), each of the plurality of planet gears (32) being rotatably mounted around a pin (41) of a planet gear carrier (51) with a journal bearing (42) having an internal sliding surface on the planet gear (32) and an external sliding surface on the pin (41).",
  "title": "GEARBOXES FOR AIRCRAFT GAS TURBINE ENGINES"
}