{
  "$type": "site.standard.document",
  "description": "The nacelle has a lip (34) prolonged by an interior pipe (36) forming an air intake. A front frame (32) delimits an annular pipe (40) in which hot air circulates and an acoustic treatment panel with the lip. The acoustic treatment panel includes upstream channels (50) and an annular channel (62)…",
  "path": "/patents/991840",
  "publishedAt": "2013-04-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B64D15/04",
    "AIRBUS OPERATIONS SAS [FR]"
  ],
  "textContent": "The nacelle has a lip (34) prolonged by an interior pipe (36) forming an air intake. A front frame (32) delimits an annular pipe (40) in which hot air circulates and an acoustic treatment panel with the lip. The acoustic treatment panel includes upstream channels (50) and an annular channel (62), where the annular channel extends on a part of circumference of the nacelle. A pipe ensures communication between the annular channel and the annular pipe. The upstream channels are emerged into downstream of the annular channel. A hold (74) is placed in the annular channel.",
  "title": "Acoustic treatment panel including hot-air channels and at least one annular channel"
}