Patent ID: 8951337
Filing Date: 2015-02-10
Classification: B01D

Abstract:
1. An air precleaner for a filter downstream thereof, comprising a precleaner housing having an inlet receiving incoming dirt laden air, a vane structure imparting centrifugal force on said air to inertially separate dirt particles therefrom to preclean said air, and an outlet discharging precleaned air, said precleaner housing having a flowpath therethrough from said inlet to said outlet, a replaceable insert removably mounted to said precleaner, wherein said vane structure provides a first flow area for said flow path and said replaceable insert provides a second flow area for said flow path to alter air flow velocity through said precleaner housing, said replaceable insert being a separate member from said vane structure and in series with said vane structure, said replaceable insert being replaceable independently of said vane structure, said replaceable insert being replaceable without replacing said vane structure, wherein said replaceable insert is replaceable with a different insert for the same said precleaner housing, said different insert providing a different flow area through said precleaner housing, enabling a selectable precleaner versus restriction trade-off as chosen by a user for a particular application, enabling tuning of precleaner performance by said user for said particular application, wherein the different flow area, the first flow area and the second flow area are different.