US PATENT SUBCLASS 123 / 568.31
.~.~.~ Temperature responsive

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

434  DF  CHARGE FORMING DEVICE (E.G., POLLUTION CONTROL) {29}
568.11  DF  .~ Exhaust gas used with the combustible mixture (e.g., emission control Exhaust Gas Recirculation (EGR) valve) {10}
568.29  DF  .~.~ Vacuum actuator control of EGR valve {3}
568.31.~.~.~ Temperature responsive

DEFINITION

Classification: 123/568.31

Temperature responsive:

(under subclass 568.29) Subject matter wherein the adjusting means is responsive to changes in temperature (e.g., of an engine component, engine fluid, or the ambient environment).