3690851

Information

• Patent Grant
• 3690851

• References
• Source

• Patent Number

  3,690,851

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1972
  52 years ago

• CPC

  • F02D35/027 - using knock sensors
  • G01L23/225 - circuit arrangements therefor
  • G01N33/2817 - using a test engine
  • F02D2700/0241 - depending on another parameter
  • F02D2700/03 - Controlling by changing the compression ratio
  • F02M2700/05 - Miscellaneous constructional elements Leakage detection
  • Y10S44/903 - Method including measuring, testing or automatic control
  • Y10T137/2499 - Mixture condition maintaining or sensing
  • Y10T137/2509 - By optical or chemical property

• US Classifications

  • 073 - Measuring and testing
  • 044 - Fuel and related compositions
  • 137 - Fluid handling
  • 436 - Chemistry: analytical and immunological testing