Air filter arrangements; assemblies; and, methods

摘要

Air cleaner assemblies and components therefor are described. An example first or main filter cartridge is described which includes a media pack comprising strips of fluted material secured to facing sheets, oriented in a stack. The media pack defines opposite inlet and outlet flow faces, with flutes extending in a direction therebetween. The media pack is non-removably secured within a filter cartridge housing, at a location between opposite sections of a shell, typically secured thereto with an adhesive. The shell also defines a closed end, spaced from, but in overlap with, the outlet end face of the media pack. The closed end is typically curved and the shell typically provides either a d/b-shape or a u-shape. The filter includes an end member, with a outlet flow aperture arrangement therein, allowing for outlet flow from the filter cartridge in a general direction orthogonal to air flow through the media pack. The air cleaner assembly includes a housing having features for receipt of, and engagement by, the filter cartridge. An optional secondary filter cartridge is provided, mountable on the housing in an orientation projecting into a clean air volume in the main filter cartridge.

主权项

1. An air filter cartridge comprising:
(a) a media pack closed to passage of unfiltered air through the media pack without passage through media therein;
(i) the media pack defining an inlet flow face and an opposite outlet flow face; and,(ii) the media pack defining a plurality of flutes extending in a direction generally between the inlet and outlet flow faces; and, (b) a member non-removably secured to the media pack and defining a filter cartridge clean air volume adjacent the outlet flow face of the media pack; (c) the filter cartridge including an air flow outlet in flow communication with the filter cartridge clean air volume and oriented for air flow therethrough in a direction generally orthogonal to a flow direction between the inlet and outlet flow faces.