Apparatus for controlling air feeding to exhaust pipe of interna

Details Apparatus for controlling air feeding to exhaust pipe of interna Apparatus for controlling air feeding to exhaust pipe of interna

1993-04-27

1995-07-25

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

60289, F01N 330

Patent

active

054351294

ABSTRACT:
In an internal combustion engine equipped with an intake pipe and an exhaust gas purification/discharge system including an exhaust pipe and a catalytic converter installed in the pipe for purification of engine exhaust gas, an apparatus for controlling introduction of air to the exhaust gas purification/discharge system comprises an air feed pipe having one inlet port and an outlet port connected to the exhaust pipe at a position upstream of the catalytic converter, a valve installed in the air feed pipe at a position downstream of the inlet port, and a computerized controller operatively connected to the valve for controlling the valve such that the air introduction to the exhaust gas purification/discharge system is optimized for exhaust gas purification effected by the catalytic converter.

REFERENCES:
patent: 3503716 (1970-03-01), Berger
patent: 3962867 (1976-06-01), Ikeura
patent: 4098078 (1978-07-01), Laurent
patent: 5163290 (1992-11-01), Kinnear

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