Air filter assembly

An air filter assembly having a primary filter element, a secondary filter element, and a housing with an outlet tube is disclosed. The primary filter element is operably installed within the housing and has an interior volume. The secondary filter element is operably installed within the primary filter element interior volume and has an interior volume defined by a first wall extending between a closed end cap and an opposite open end cap. The open end cap of the secondary filter element defines a sealing structure having a first portion extending into the secondary filter interior volume. The outlet tube is operably connected to the housing air outlet opening and includes an inset collar being at least partially disposed within the secondary filter interior volume and extending over at least a part of the sealing structure first portion. 本发明披露了种空气过滤器组件，所述空气过滤器组件具有主过滤元件、次级过滤元件、和具有出口管的外壳。主过滤元件可操作地安装在外壳内并具有内部空间。次级过滤元件可操作地安装在主过滤元件内部空间中，并具有由在闭合端盖和相对的开口端盖之间延伸的第壁限定的内部空间。次级过滤元件的开口端盖限定密封结构，所述密封结构具有伸入次级过滤器内部空间的第部分。出口