| 摘要 |
PURPOSE:To deoxidize and purify the NOx in the exhaust gas directly by the H2 from a hydrogen generator under the exhaust gas low temperature ambiance so as to reduce the NOx, by composing the system to make a part of a hydrocarbon fuel converted into a hydrogen gas to feed by a reformer catalyst converter. CONSTITUTION:H2 is fed near the entrance of a deoxidizer catalyst 2. The air amount is measured by a suction air amount sensor 5 of an engine E to make the H2 to feed at the same level with the NOx in the exhaust gas. The NOx density in the exhaust gas is found by an NOx sensor 6, and after the NOx flow is calculated from the outputs of both sensors 5 and 6 in a controller 7, the fuel flow led in a reformer catalyst converter, and the reformer catalyst converter temperature by an exhaust gas flow dividing valve 11, and also an air valve 12 for reforming in the system to carry out a partial oxidization, are controlled in order to generate the H2 corresponding to the NOx flow. |
