US PATENT SUBCLASS 123 / 572
.~ Crankcase vapor used with combustible mixture

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

434  DF  CHARGE FORMING DEVICE (E.G., POLLUTION CONTROL) {29}
572.~ Crankcase vapor used with combustible mixture {2}
573  DF  .~.~> Vapor treated before mixing with combustible mixture (e.g., cooling)
574  DF  .~.~> Specific control valve (e.g., PCV valve)

DEFINITION

Classification: 123/572

Crankcase vapor used with combustible mixture:

(under subclass 434) Subject matter in which means is provided to introduce part or all of the crankcase blow by gases to the engine intake manifold or directly to the combustion chamber for burning.