US PATENT SUBCLASS 123 / 514
.~.~ Excess fuel returned to tank

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

434  DF  CHARGE FORMING DEVICE (E.G., POLLUTION CONTROL) {29}
510  DF  .~ Fuel flow regulation between the pump and the charge-forming device {5}
514.~.~ Excess fuel returned to tank

DEFINITION

Classification: 123/514

Excess fuel returned to tank:

(under subclass 510) Subject matter in which the regulator includes means to return excess fuel delivered by the pump to the fuel tank or pump inlet.

(1) Note. The means to return excess fuel may be a single constant bleed-off orifice.