US PATENT SUBCLASS 123 / 406.2
.~.~.~ Separate control for each cylinder

Current as of: June, 1999
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123 /   HD   INTERNAL-COMBUSTION ENGINES

406.11  DF  SPARK IGNITION TIMING CONTROL {5}
406.12  DF  .~ Electronic control {10}
406.19  DF  .~.~ Closed loop feedback control of spark timing {5}
406.2.~.~.~ Separate control for each cylinder {2}
406.21  DF  .~.~.~.~> Knock responsive
406.22  DF  .~.~.~.~> Cylinder pressure responsive

DEFINITION

Classification: 123/406.2

Separate control for each cylinder:

Subject matter under subclass 406.19 wherein the regulating means varies the spark ignition timing for each combustion chamber individually.