{
  "$type": "site.standard.document",
  "description": "The invention relates to an air inlet for an aircraft nacelle, comprising a lip (10) and a front frame that together form a duct with a D-shaped section receiving hot air, characterized in that: - the front frame is arranged in an advanced position inside the lip; - the lip has de-icing grooves…",
  "path": "/patents/1425496",
  "publishedAt": "2022-04-20T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B64D15/04",
    "AIRBUS OPERATIONS SAS [FR]"
  ],
  "textContent": "The invention relates to an air inlet for an aircraft nacelle, comprising a lip (10) and a front frame that together form a duct with a D-shaped section receiving hot air, characterized in that: - the front frame is arranged in an advanced position inside the lip; - the lip has de-icing grooves (12), which communicate with the D-shaped section duct (2) and extend essentially downstream of the front frame, - downstream of the front frame, outside the de-icing grooves, the lip has perforated zones (13) provided with sound absorption holes (16), - the air inlet comprises a foil (11), which hermetically closes the de-icing grooves and is provided with sound absorption holes (17) facing the perforated zones, - the air inlet comprises acoustic panels (20) inside the lip (10) downstream of the front frame (1). [0002] The advanced position of the front frame, made possible by the presence of de-icing grooves that ensure de-icing of the lip downstream of the front frame, makes it possible to increase the acoustic treatment surface of the air inlet.",
  "title": "AIR INTAKE, NACELLE, PROPULSION ASSEMBLY AND AIRCRAFT WITH GROOVED LIP"
}