FILTER ELEMENT WITH FEATURES TO IMPROVE PRE-CLEANING PERFORMANCE, SEALING, AND STRUCTURAL SUPPORT

摘要

Disclosed are filter assembly systems that utilize replaceable filter elements. The filter elements may include a ramp or sleeve for redirecting air intake when the filter elements are installed in the filter assembly systems and air is drawn into the systems. The filter elements and assembly systems may utilize co-acting components that make with each other to at least one of: a) orient and permit mounting of the filter element in the systems; and b) permit mounting of only an authorized filter element in the systems.