Filter cartridges; air cleaner assemblies; housings; features; components; and, methods
AssigneeDonaldson Company, Inc.
InventorsDavid J. Burton, Hubert Julius Rahn
Life of this patent
Estimating the term…
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.
Claims19
An air cleaner assembly comprising:
- (a) a housing including:
- a housing body;
- and, an access cover;
- (i) the housing body having:
- an open service access end;
- and, a main filter cartridge sealing shelf recessed from the open service access end;
- (ii) the access cover comprising a precleaner assembly including a flow separator tube arrangement comprising a plurality of cyclonic flow separator tubes;
- (A) the access cover being removably mounted on the housing body over the service access end and with the flow separator tube arrangement projecting into the housing body to a location surrounded by the housing body;
- and,
- (iii) the housing body including:
- an air flow inlet arrangement;
- an air flow outlet arrangement;
- and, a contaminant evacuation port arrangement;
- and,
- (b) a main filter cartridge removably positioned within the housing body;
- the main filter cartridge comprising;
- (i) a media pack having an inlet end and an opposite outlet end;
- and,
- (ii) a housing seal arrangement comprising a perimeter pinch seal removably positioned sealingly biased against the main cartridge sealing shelf.
Dependencies are inferred from the claim text.