Diesel Exhaust Fluid (DEF) Injector T420858 is a key component in the SCR (Selective Catalytic Reduction) aftertreatment system used to treat exhaust gas downstream of the engine. The injector is used to inject small quantities of diesel exhaust fluid (DEF) into the exhaust upstream of a catalyst, where it vaporizes and decomposes to form ammonia and carbon dioxide. The ammonia (NH3) is the desired compound which in conjunction to the SCR catalyst, converts the NOx to harmless nitrogen (N2) and water (H2O). The purpose of the SCR system is to reduce levels of NOx (oxides of nitrogen emitted from engines) that are harmful to our health and the environment. ...2020-04-01 16:31:47
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柴油机尾气（DEF）喷射器T420858是SCR（选择性催化还原）后处理系统中的关键组件，用于处理发动机下游的尾气。 喷油器用于将少量柴油排气液（DEF）喷入催化剂上游的废气中，在那里蒸发并分解形成氨和二氧化碳。 氨（NH3）是所需的化合物，与SCR催化剂结合使用，可将NOx转化为无害的氮气（N2）和水（H2O）。 SCR系统的目的是减少有害于我们健康和环境的NOx（发动机排放的氮氧化物）水平...2020-04-01 16:32:25
Diesel Exhaust Fluid (DEF) Injector T420858 is a key component in the SCR (Selective Catalytic Reduction) aftertreatment system used to treat exhaust gas downstream of the engine. The injector is used to inject small quantities of diesel exhaust fluid (DEF) into the exhaust upstream of a catalyst, where it vaporizes and decomposes to form ammonia and carbon dioxide. The ammonia (NH3) is the desired compound which in conjunction to the SCR catalyst, converts the NOx to harmless nitrogen (N2) and water (H2O). The purpose of the SCR system is to reduce levels of NOx (oxides of nitrogen emitted from engines) that are harmful to our health and the environment. ...2020-04-01 16:31:47