US PATENT SUBCLASS 123 / 568.21
.~.~ Having electrically actuated control means

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

434  DF  CHARGE FORMING DEVICE (E.G., POLLUTION CONTROL) {29}
568.11  DF  .~ Exhaust gas used with the combustible mixture (e.g., emission control Exhaust Gas Recirculation (EGR) valve) {10}
568.21.~.~ Having electrically actuated control means {3}
568.22  DF  .~.~.~> Ambient condition responsive (e.g., atmospheric temperature, atmospheric pressure)
568.23  DF  .~.~.~> Having rotary actuator control of EGR valve {2}
568.26  DF  .~.~.~> Having electromechanical actuator control of EGR valve {1}

DEFINITION

Classification: 123/568.21

Having electrically actuated control means:

(under subclass 568.11) Subject matter wherein the means for adjusting the flow of the products of combustion to the combustion chamber is powered by electrical energy.

SEE OR SEARCH CLASS

251, Valves and Valve Actuation,

129.01+, for electrically operated valves of general utility.

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

108, for a digital or programmed data processing system associated with an internal-combustion engine designed to control the air/fuel ratio or fuel injection to change the exhaust gas system, where significant details of the mechanical construction of the component or subsystem within a vehicle are not claimed.