{
  "$type": "site.standard.document",
  "description": "A gas turbine engine (20) includes a fan shaft (72)arranged along an engine central axis, a frame (78) supporting the fan shaft (72), a gear system (48) rotatably coupled with the fan shaft (72), and a flexible coupling (74) at least partially supporting the gear system (48). The flexible coupling…",
  "path": "/patents/1418139",
  "publishedAt": "2024-07-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02C7/06",
    "RTX CORP [US]"
  ],
  "textContent": "A gas turbine engine (20) includes a fan shaft (72)arranged along an engine central axis, a frame (78) supporting the fan shaft (72), a gear system (48) rotatably coupled with the fan shaft (72), and a flexible coupling (74) at least partially supporting the gear system (48). The flexible coupling (74) defines, with respect to the engine central axis (A), a torsional stiffness TS and a lateral stiffness LS such that a ratio of TS/LS is greater than or equal to about 2.0 to reduce loads on the gear system(48) from misalignment of the gear system (48) with respect to the engine central axis (A).",
  "title": "FLEXIBLE COUPLING FOR GEARED TURBINE ENGINE"
}