Filter cartridges; air cleaner assemblies; housings; features; components; and, methods
AssigneeDonaldson Company, Inc.
InventorsDavid J. Burton, Hubert Julius Rahn
Life of this patent
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Abstract
Air cleaner assemblies, components, features and methods of assembly and use are described. Example air cleaner assemblies are depicted and described in which a main filter cartridge sealing surface is recessed from an open end of a housing body. An access cover of the housing is configured with a portion extending inwardly to engage a main filter cartridge portion and bias it against the main filter cartridge sealing surface. In selected assemblies, the portion of the access cover extending inwardly toward the main filter cartridge, is a precleaner having flow separator tubes therein.
Claims22
An air cleaner assembly comprising:
- (a) a main filter cartridge;
- (b) a housing including an air flow inlet and an air flow outlet;
- the housing comprising a housing body and an access cover;
- (i) the housing body having an open service access end;
- an air flow outlet;
- a main filter cartridge sealing shelf recessed from the service access end;
- and, the housing body is sized to receive the main filter cartridge;
- and,
- (ii) the access cover including an inner projection with a perimeter rim projecting into the housing body to a location surrounded by the housing body;
- and,
- (A) the perimeter rim extending over an axial distance of at least 50 mm;
- (B) the inner perimeter rim including a side air flow aperture arrangement therethrough;
- and,
- (C) the inner projection having an outer surface with a plurality of spaced, axially extending, projection ribs thereon;
- and
- wherein the main filter cartridge is removably positioned within the housing body.
Dependencies are inferred from the claim text.