US PATENT SUBCLASS 123 / 437
.~ Auxiliary control of carburetor fuel metering

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

434  DF  CHARGE FORMING DEVICE (E.G., POLLUTION CONTROL) {29}
437.~ Auxiliary control of carburetor fuel metering {2}
438  DF  .~.~> By electrical or electronic control system {1}
441  DF  .~.~> By mechanical speed sensor

DEFINITION

Classification: 123/437

Auxiliary control of carburetor fuel metering:

(under subclass 434) Subject matter in which the charge-forming device is a carburetor in which fuel flow is primarily controlled or adjusted by venturi metering means with auxiliary fuel flow control means responsive to engine parameters other than vacuum or temperature.

SEE OR SEARCH CLASS

261, Gas and Liquid Contact Apparatus,

38+, for carburetors having auxiliary metering control means responsive to vacuum or temperature.