Power plants – Internal combustion engine with treatment or handling of... – Methods
Patent
1993-10-04
1995-05-02
Lazarus, Ira S.
Power plants
Internal combustion engine with treatment or handling of...
Methods
60276, 60289, F01N 320
Patent
active
054108721
ABSTRACT:
An automotive engine and exhaust aftertreatment system includes an engine, a catalytic exhaust aftertreatment device for receiving exhaust gas from the engine, and an air source for supplying air to the exhaust stream entering the catalyst. An exhaust gas oxygen sensor determines the amount of oxygen contained in the exhaust entering the catalyst, and an engine control computer connected with the air source and with the oxygen sensor monitors the amount of oxygen contained in the exhaust and controls the amount of air supplied to the exhaust stream by the air source such that the available oxygen is slightly in excess of the stoichiometric requirement. In this manner, the light-off time of the catalyst is minimized.
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Adamczyk, Jr. Andrew A.
Montreuil Clifford N.
Williams Scott C.
Drouillard Jerome R.
Ford Motor Company
Lazarus Ira S.
May Roger L.
O'Connor Daniel J.
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