Method of operating an internal combustion engine

Details Method of operating an internal combustion engine Method of operating an internal combustion engine

1998-08-07

2000-02-29

Wolfe, Willis R.

Power plants

Fluid motor means driven by waste heat or by exhaust energy...

With supercharging means for engine

12356816, 123704, F02M 2507

Patent

active

060294515

ABSTRACT:
In a method and apparatus for operating an internal combustion engine having an air intake duct for supplying combustion air to the engine, an exhaust pipe for discharging exhaust gases from the engine, and an exhaust gas recirculation pipe extending between the exhaust pipe and the air intake duct and including an exhaust gas recirculation valve, oxygen sensors are provided in the air intake pipe and in the exhaust duct and are connected to a control unit which determines from the signals generated by the oxygen sensors the actual exhaust gas recirculation rate and dependent thereon controls the exhaust gas recirculation valve so as to generate a desired exhaust gas recirculation flow for the momentary engine operating point.

REFERENCES:
patent: 4168683 (1979-09-01), Hata et al.
patent: 4614175 (1986-09-01), Asayama
patent: 4794903 (1989-01-01), Suzuki
patent: 4823760 (1989-04-01), Nishida
patent: 5778674 (1998-07-01), Kimura

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