US PATENT SUBCLASS 60 / 306
.~.~.~ To port zone and downstream of port

Current as of: June, 1999
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60 /   HD   POWER PLANTS

272  DF  INTERNAL COMBUSTION ENGINE WITH TREATMENT OR HANDLING OF EXHAUST GAS {18}
282  DF  .~ By means producing a chemical reaction of a component of the exhaust gas {13}
304  DF  .~.~ Oxidizer feed passage at engine exhaust valve, manifold or port {2}
306.~.~.~ To port zone and downstream of port

DEFINITION

Classification: 60/306

(under subclass 304) Apparatus in which oxidizer is fed both to a region of reaction adjacent the combustion chamber and to a reactor downstream of and spaced from the port region.