US PATENT SUBCLASS 123 / 184.47
.~ Manifold having plenum

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

184.21  DF  INTAKE MANIFOLD {8}
184.47.~ Manifold having plenum {2}
184.48  DF  .~.~> Plural plenums {1}
184.51  DF  .~.~> Adjustable plenum

DEFINITION

Classification: 123/184.47

Manifold having plenum:

(under subclass 184.21) Intake manifold including a chamber in which the working fluid is contained at a pressure different from the pressure surrounding the chamber.