{
  "$type": "site.standard.document",
  "description": "An assembly for an aircraft propulsion system includes an output shaft (56) and a gear assembly (62). The gear assembly (62) is configured to drive rotation of the output shaft (56). The gear assembly (62) includes a sun gear (66), a plurality of planet gears (68), a first ring gear (70), and a…",
  "path": "/patents/1388122",
  "publishedAt": "2025-12-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02C7/36",
    "PRATT & WHITNEY CANADA [CA]"
  ],
  "textContent": "An assembly for an aircraft propulsion system includes an output shaft (56) and a gear assembly (62). The gear assembly (62) is configured to drive rotation of the output shaft (56). The gear assembly (62) includes a sun gear (66), a plurality of planet gears (68), a first ring gear (70), and a second ring gear (72). The sun gear (66) is rotatable about a rotational axis (38). The sun gear (66) includes a first double helical gear pattern (74). Each planet gear (68) of the plurality of planet gears (68) includes a main gear (80), a first lateral gear (82), and a second lateral gear (84). The main gear (80) includes a second double helical gear pattern (92) engaged with the first double helical gear pattern (74). The first lateral gear (82) is engaged with the first ring gear (70). The second lateral gear (84) is engaged with the second ring gear (72). The first ring gear (70) is axially spaced from the second ring gear (72) relative to the rotational axis (38).",
  "title": "GEARBOX ASSEMBLY FOR AN AIRCRAFT PROPULSION SYSTEM"
}