Impingement Mixer for Exhaust Treatment

A mixer assembly for treating exhaust with an injected reductant as the exhaust flows through an exhaust gas passageway includes a tubular shell and a rod. A first end and a second opposite end of therod are fixed to the shell. The rod has a serpentine shape with a plurality of parallel extending portions interconnected by curved portions. The curved portions are positioned proximate an inner surface of the shell such that the rod traverses the exhaust passageway. The mixer assembly is positioned such that the rod is directly impinged by reductant injected into the exhaust gas passageway. 种混合器组件，该混合器组件用于当排气流经排气通道时利用被注入的还原剂处理排气，该混合器组件包括管状壳体和杆件。该杆件的第末端和第二相反末端被固定到该壳体上。该杆件具有多个平行延伸部分通过弯曲部分而互连的蛇形形状。这些弯曲部分被定位成接近该壳体的内表面，使得该杆件横过该排气通道。该混合器组件被定位成使得该杆件被注入排气通道中的还原剂所直接碰撞。