nitrogen selective detectionとは 意味・読み方・使い方

The exhaust emission control device is provided with: a selective reduction catalyst 5 provided in an exhaust passage 15 of an on-vehicle engine 20, adsorbing ammonia and reducing nitrogen oxide in an exhaust gas by using the ammonia as a reducing agent; and a catalyst temperature detection unit 8 for detecting a catalyst temperature of the selective reduction catalyst 5.例文帳に追加

車搭載エンジン２０の排気通路１５に設けられ、アンモニアを吸着するとともにそのアンモニアを還元剤として排気中の窒素酸化物を還元する選択還元触媒５と、選択還元触媒５の触媒温度を検出する触媒温度検出手段８と、を備える。 - 特許庁

In addition, the exhaust emission control device is provided with: an adsorption amount calculation unit 7c for calculating an adsorption amount of ammonia adsorbed on the selective reduction catalyst 5; a condition detection unit 7d for detecting an idle operation condition of the engine 20; and the exhaust gas sensor 9 provided on a downstream side rather than the selective reduction catalyst 5 and detecting nitrogen oxide concentration.例文帳に追加

また、選択還元触媒５に吸着されているアンモニアの吸着量を演算する吸着量演算手段７ｃと、エンジン２０のアイドル運転状態を検出する状態検出手段７ｄと、選択還元触媒５よりも下流側に設けられ窒素酸化物濃度を検出する排気センサ９と、を備える。 - 特許庁