{
  "$type": "site.standard.document",
  "description": "An attenuator for the air inlet tract of an internal combustion engine comprises an unobstructed tube (4) having a surrounding enclosure (9) divided into a primary chamber (11) in fluid communication with the inlet tube, and a secondary chamber (12) in fluid communication with the primary chamber…",
  "path": "/patents/1003049",
  "publishedAt": "2012-04-25T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M35/1216",
    "JAGUAR CARS [GB]"
  ],
  "textContent": "An attenuator for the air inlet tract of an internal combustion engine comprises an unobstructed tube (4) having a surrounding enclosure (9) divided into a primary chamber (11) in fluid communication with the inlet tube, and a secondary chamber (12) in fluid communication with the primary chamber. Two secondary chambers (12, 13) may be provided. The arrangement can be tuned to attenuate a wide range of frequencies.",
  "title": "Air duct attenuator"
}