US PATENT SUBCLASS 123 / 531
.~ Auxiliary air or gas used to inject fuel

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

434  DF  CHARGE FORMING DEVICE (E.G., POLLUTION CONTROL) {29}
531.~ Auxiliary air or gas used to inject fuel {4}
532  DF  .~.~> Air is bled from the cylinder on the compression stroke in that cylinder
533  DF  .~.~> Having a separate pump for the air or gas
534  DF  .~.~> Air is bled from another engine cylinder
535  DF  .~.~> Constant fuel level

DEFINITION

Classification: 123/531

Auxiliary air or gas used to inject fuel:

(under subclass 434) Subject matter in which means is provided that uses a small amount of pressurized air or other gas, insufficient to form a combustible charge, to force the liquid fuel into the combustion air.

SEE OR SEARCH THIS CLASS, SUBCLASS:

69, for a two-stroke engine having separate pumps for air and gaseous fuel.

SEE OR SEARCH CLASS

261, Gas and Liquid Contact Apparatus,

19+, for carburetors using auxiliary air.