| 摘要 |
<p>The exhaust gas purification apparatus includes an oxidation catalyst, an ammonia adsorption portion, a selective catalytic reduction catalyst and a urea water supply device. The oxidation catalyst is provided in a passage through which exhaust gas flows. The ammonia adsorption portion is located in the passage downstream of the oxidation catalyst with respect to the flow of the exhaust gas and operable to adsorb ammonia. The selective catalytic reduction catalyst is located in the passage downstream of the ammonia adsorption portion. The urea water supply device is provided for supplying urea water to the passage upstream of the selective catalytic reduction catalyst.</p> |
