Exhaust gas purifying apparatus and method thereof

Details Exhaust gas purifying apparatus and method thereof Exhaust gas purifying apparatus and method thereof

2007-11-27

2007-11-27

Denion, Thomas (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

By electrolysis, electrical discharge, electrical field, or...

C069S006500, C069S006500, C069S006500

Reexamination Certificate

active

11372268

ABSTRACT:
An exhaust gas purifying apparatus provided in an exhaust passage connected with an engine includes an upstream catalyst that is provided in the exhaust passage, and that removes NOx; a downstream catalyst that is provided downstream of the upstream catalyst in the exhaust passage; and a supply device that supplies an oxygen-activating component to a portion of the exhaust passage located between the upstream catalyst and the downstream catalyst. In the exhaust gas purifying apparatus, the upstream catalyst removes NOx, and then an oxygen-activating component is supplied to the exhaust gas. Further, the downstream catalyst removes a hydrocarbon compound contained in the exhaust gas.

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patent: A 2000-282844 (2000-10-01), None
patent: A 2002-263491 (2002-09-01), None

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