2251369

Information

• Patent Grant
• 2251369

• References
• Source

• Patent Number

  2,251,369

• Date Filed

  Not available

• Date Issued

  Tuesday, August 5, 1941
  83 years ago

• CPC

  • F01N13/1838 - characterised by the type of connection between parts of exhaust or silencing apparatus
  • F01N1/006 - comprising at least one perforated tube extending from inlet to outlet of the silencer
  • F01N1/02 - by using resonance
  • F01N1/023 - Helmholtz resonators
  • F01N2450/20 - by mechanical joints
  • F01N2450/22 - by welding or brazing
  • F01N2470/02 - Tubes being perforated
  • F01N2470/16 - Plurality of inlet tubes
  • F01N2470/24 - Concentric tubes or tubes being concentric to housing
  • F01N2490/15 - Plurality of resonance or dead chambers
  • F01N2510/04 - for sound absorption
  • F01N2530/26 - Multi-layered walls

• US Classifications

  • 181 - Acoustics