EXCESS AIR TO INTERNAL COMBUSTION ENGINE TO ASSIST EXHAUST
TREATMENT:
(under subclass 285) A cross-reference collection based on a manner of operating an engine to control pollution by adjustably setting the air feed to the engine. Much of the art is from Class 123, Internal-Combustion Engines; subclasses 568.11+, charge forming devices having exhaust gas used with the combustible mixture. See also ... of Class 60 for the control of the air, fuel, or ignition of an engine, responsive to the condition of an exhaust treating reactor.
