US PATENT SUBCLASS 123 / 184.57
.~.~ Resonator chamber

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

184.21  DF  INTAKE MANIFOLD {8}
184.53  DF  .~ Manifold tuning, balancing or pressure regulating means {6}
184.57.~.~ Resonator chamber

DEFINITION

Classification: 123/184.57

Resonator chamber:

(under subclass 184.53) Intake manifold including an enclosed portion that is tuned to convert the pressure pulses of the pistons sucking in air into resonating waves which facilitates more efficient charging of the cylinders.