US PATENT SUBCLASS 123 / 436
.~ Including means responsive to instantaneous change in engine speed

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

434  DF  CHARGE FORMING DEVICE (E.G., POLLUTION CONTROL) {29}
436.~ Including means responsive to instantaneous change in engine speed

DEFINITION

Classification: 123/436

Including means responsive to the instantaneous change in engine speed:

(under subclass 434) Subject matter in which the charge-forming device includes means to determine instantaneous changes in engine speed (roughness) and adjust the quality of the air-fuel mixture accordingly.