US PATENT SUBCLASS 123 / 184.33
.~.~.~.~ Inlet manifold heated by outlet manifold

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

184.21  DF  INTAKE MANIFOLD {8}
184.28  DF  .~ For engine having radiating cylinders {2}
184.31  DF  .~.~ For V-type engine {3}
184.32  DF  .~.~.~ For use with carburetor upstream of manifold {1}
184.33.~.~.~.~ Inlet manifold heated by outlet manifold

DEFINITION

Classification: 123/184.33

Inlet manifold heated by outlet manifold:

(under subclass 184.32) Intake manifold wherein the engine also includes at least one exhaust passage intermingling with or in thermal communication with at least a portion of the intake manifold.