2214894

Information

• Patent Grant
• 2214894

• References
• Source

• Patent Number

  2,214,894

• Date Filed

  Not available

• Date Issued

  Tuesday, September 17, 1940
  84 years ago

• CPC

  • F01N13/007 - Apparatus used as intake or exhaust silencer
  • F01N1/02 - by using resonance
  • F01N1/166 - for changing gas flow path through the silencer or for adjusting the dimensions of a chamber or a pipe
  • F01N1/168 - for controlling or modifying silencing characteristics only
  • F02M35/1227 - by using multiple air intake flow paths
  • F02M35/1266 - comprising multiple chambers or compartments
  • F01N2490/12 - Chambers having variable volumes
  • F01N2490/155 - being disposed one after the other in flow direction

• US Classifications

  • 123 - Internal-combustion engines
  • 181 - Acoustics