{
  "$type": "site.standard.document",
  "description": "A gas turbine engine (20) includes a first spool (40), a first gear system (72) connected to and driven by the first spool (40), a second spool (38), and a second gear system (70) connected to and driven by the second spool (38). A first starter-generator (60) has a first shaft (88) with a…",
  "path": "/patents/992615",
  "publishedAt": "2013-02-27T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02C7/275",
    "UNITED TECHNOLOGIES CORP [US]"
  ],
  "textContent": "A gas turbine engine (20) includes a first spool (40), a first gear system (72) connected to and driven by the first spool (40), a second spool (38), and a second gear system (70) connected to and driven by the second spool (38). A first starter-generator (60) has a first shaft (88) with a switchable coupling (74) connected to the first shaft (88). The switchable coupling (74) selectively couples the first starter-generator (60) to the first gear system (72) when the switchable coupling (74) is in a first position and selectively couples the first starter-generator (60) to the second gear system (70) when the switchable coupling (74) is in a second position. And a corresponding method for operating a gas turbine engine.",
  "title": "Gas turbine engine generator switchable drive"
}