Exhaust passage deposit mitigation

The invention relates to exhaust passage deposit mitigation. A self-cleaning duct assembly is disclosed. The self-cleaning duct assembly includes a hollow member having an inner surface, the inner surface defining a central axis and a flow passage for directing a fluid flow along the central axis. The self-cleaning duct assembly also includes a resilient member including a plurality of arcuate segments disposed along the central axis, each of the arcuate segments spaced from the inner surface. The arcuate segments intermittently contact the inner surface as the resilient member is induced to move within the hollow member. 本发明涉及减少排气通道沉积物，公开了一种自清洁管道组件。自清洁管道组件包括具有内表面的中空构件，内表面限定中心轴线以及用于沿中心轴线引导流体流的流动通道。自清洁管道组件还包括弹性构件，该弹性构件包括沿中心轴线设置的多个弧形区段，每个弧形区段与内表面间隔开。当弹性构件被促使在中空构件内移动时，弧形区段间歇性地接触内表面。