{
  "$type": "site.standard.document",
  "description": "A sound generator (103) for an anti-sound system for influencing sound waves conducted in intake systems or exhaust systems of combustion engine-powered vehicles comprises a housing (131) with a connection opening (132) for fluid connection of an intake system and/or exhaust system, a loudspeaker…",
  "path": "/patents/967439",
  "publishedAt": "2014-11-12T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01N1/065",
    "EBERSPAECHER EXHAUST TECH GMBH [DE]"
  ],
  "textContent": "A sound generator (103) for an anti-sound system for influencing sound waves conducted in intake systems or exhaust systems of combustion engine-powered vehicles comprises a housing (131) with a connection opening (132) for fluid connection of an intake system and/or exhaust system, a loudspeaker basket (123) supported by the housing (131), a membrane (122) supported by the loudspeaker basket (123), a permanent magnet (121) supported by the loudspeaker basket (123), and an oscillating coil (126) carried by an oscillating coil carrier (125). The oscillating coil (126) is arranged in a static magnetic field generated by the permanent magnet (121) and is connected to the membrane (122). The membrane (122) is arranged between the connection opening (132) of the housing (131) and the permanent magnet (121). The membrane is funnel-shaped or spherical cap-shaped, whereby the apex or top surface of the funnel-shaped membrane or the geometric center point of the spherical cap-shaped membrane faces away from the permanent magnet. Furthermore, an anti-sound system which uses the sound generator, as well as a vehicle which uses this anti-sound system, are disclosed.",
  "title": "Sound Generator for an Anti-noise System for influencing exhaust Noises and/or intake Noises of a Motor Vehicle"
}