US PATENT SUBCLASS 123 / 699
.~.~.~ Secondary fluid is auxiliary air or oxygen (e.g., carburetor air bleed)

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

434  DF  CHARGE FORMING DEVICE (E.G., POLLUTION CONTROL) {29}
672  DF  .~ Including exhaust gas condition responsive means {11}
698  DF  .~.~ With addition of secondary fluid (e.g., fuel or exhaust gas) {1}
699.~.~.~ Secondary fluid is auxiliary air or oxygen (e.g., carburetor air bleed) {1}
700  DF  .~.~.~.~> Fed to air/fuel mixture

DEFINITION

Classification: 123/699

Secondary fluid is auxiliary air or oxygen (e.g., carburetor air bleed):

(under subclass 698) Subject matter wherein the additional fluid is an oxidant.

SEE OR SEARCH THIS CLASS, SUBCLASS:

585, for charge forming devices having auxiliary air or oxygen added to the combustible mixture.

SEE OR SEARCH CLASS

701, Data Processing, Navigation, and Relative Location,

103+, for control means for internal-combustion engines including specific computer or data processing details.