{
  "$type": "site.standard.document",
  "description": "A mechanical drive system of an aircraft gas turbine engine includes a tower shaft (28) operatively connected to first and second shafts (38,40) in an accessory drive gearbox (30). The first shaft (38) rotates at a rotational speed lower than the rotational speed of the tower shaft (28) and the…",
  "path": "/patents/995401",
  "publishedAt": "2012-12-05T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02C7/32",
    "PRATT & WHITNEY CANADA [CA]"
  ],
  "textContent": "A mechanical drive system of an aircraft gas turbine engine includes a tower shaft (28) operatively connected to first and second shafts (38,40) in an accessory drive gearbox (30). The first shaft (38) rotates at a rotational speed lower than the rotational speed of the tower shaft (28) and the second shaft (40) rotates at a rotational speed equal to or higher than the rotational speed of the tower shaft (28), achieved by two pairs of bevel gears (52/56;54/58) of which two bevel gears (52,54) are mounted to the tower shaft (28).",
  "title": "Dual drive of an accessory drive gearbox"
}