{
  "$type": "site.standard.document",
  "description": "The turbofan has two counter-rotating fans (3, 5), and a low pressure compressor (7). The compressor has a downstream crown (18) of rotating blades (19) connecting the fan (5) to a drive shaft (6) of the fan (5). An upstream crown (40) of rotating blades (41) is connected to a drive shaft (4) of…",
  "path": "/patents/1074980",
  "publishedAt": "2005-08-17T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01D25/162",
    "SNECMA MOTEURS [FR]"
  ],
  "textContent": "The turbofan has two counter-rotating fans (3, 5), and a low pressure compressor (7). The compressor has a downstream crown (18) of rotating blades (19) connecting the fan (5) to a drive shaft (6) of the fan (5). An upstream crown (40) of rotating blades (41) is connected to a drive shaft (4) of the fan (3). Bearings (70, 71, 80, 81) are placed respectively between intermediate casings (2, 60) and the shafts (4, 6). The low pressure compressor (7) is disposed under the rear fan (5). The crowns (18, 40) have stator vanes (47, 48) placed between them and inside an external stator (49) supported by the intermediate casing (60).",
  "title": "Jet engine architecture having two fans at the front end"
}