US PATENT SUBCLASS 123 / 406.45
.~.~ Including control of combustible mixture or a constituent thereof (e.g., air, fuel, exhaust gas)

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}
406.45.~.~ Including control of combustible mixture or a constituent thereof (e.g., air, fuel, exhaust gas) {3}
406.46  DF  .~.~.~> Acceleration or deceleration responsive
406.47  DF  .~.~.~> With fuel injection control
406.48  DF  .~.~.~> With exhaust gas recirculation (EGR) control

DEFINITION

Classification: 123/406.45

Including control of combustible mixture or a constituent thereof (e.g., air, fuel, exhaust gas):

Subject matter under subclass 406.12 wherein the regulating means to vary spark ignition timing includes means to vary either (a) the (1) amount of or (2) timing of the supply of a component of the combustible mixture to the combustion chamber or (b) the relative proportion of the components of the combustible mixture supplied to the combustion chamber.

SEE OR SEARCH THIS CLASS, SUBCLASS:

434+, for a charge forming device for an internal combustion engine.

SEE OR SEARCH CLASS

261, Gas and Liquid Contact Apparatus, appropriate subclasses for apparatus adapted to produce an intimate contact between gases and liquids, per se.

701, Data Processing: Vehicles, Navigation, and Relative Location,

103, for digital or programmed data processing system associated with an internal combustion engine, designed to control the air/fuel ratio or the injection of fuel based on engine operating conditions or environmental conditions, where significant details of the mechanical construction of the component or subsystem within a vehicle are not claimed.