2166417

Information

• Patent Grant
• 2166417

• References
• Source

• Patent Number

  2,166,417

• Date Filed

  Not available

• Date Issued

  Tuesday, July 18, 1939
  85 years ago

• CPC

  • F01N13/007 - Apparatus used as intake or exhaust silencer
  • F01N1/02 - by using resonance
  • F01N1/10 - in combination with sound-absorbing materials
  • F01N1/24 - by using sound-absorbing materials
  • F02M35/1216 - by using a plurality of holes, slits, protrusions, perforations, ribs or the like; Surface structures; Turbulence generators
  • F02M35/1227 - by using multiple air intake flow paths
  • F02M35/1266 - comprising multiple chambers or compartments
  • F02M35/1272 - using absorbing, damping, insulating or reflecting materials
  • F01N2310/02 - Mineral wool
  • F01N2310/04 - Metallic wool
  • F01N2310/08 - Exfoliated vermiculite
  • F01N2470/02 - Tubes being perforated
  • F01N2490/155 - being disposed one after the other in flow direction
  • F02M35/12 - Intake silencers Sound modulation, transmission or amplification

• US Classifications

  • 181 - Acoustics