Air/oil separator assemblies; components; and methods
AssigneeDonaldson Company, Inc.
InventorsThomas Lundgren, Veli Kalayci, Paul Peterson, Daniel Adamek, Richard Osendorf, Wade Mosset, Robert Wood
Life of this patent
Estimating the term…
Abstract
According to the present disclosure, arrangements, systems, components, features and methods for separating hydrophobic fluid such as oil entrained as aerosols from gas streams, such as crankcase ventilation gas streams are described. The components specifically described include a filter cartridge with preferred features for interaction with a filter housing, and a filter housing with preferred features for convenient installation. Methods of assembly and use are also characterized
Claims44
A filter cartridge for use in gas/liquid separation;
- the filter cartridge comprising:
- (a) an extension of filter media surrounding and defining an open filter interior;
- (b) first and second end pieces;
- (i) the media being positioned between the first and second end pieces;
- (ii) the first end piece having a central flow aperture therethrough in gas flow communication with the open filter interior;
- (iii) the first end piece includes a perimeter rim having a portion projecting at least 3 mm toward the second end piece while completely surrounding the media;
- and,
- (iv) the second end piece has a closed external receiver therein projecting into the open filter and toward the first end piece a distance of at least 7 mm from an end of the media adjacent the second end piece;
- (c) a housing seal arrangement positioned on the first end piece at a location with at least a portion of the housing seal arrangement completely surrounding the media.
-10. (canceled)
-14. (canceled)
-20. (canceled)
(canceled)
(canceled)
(canceled)
-32. (canceled)
(canceled)
(canceled)
(canceled)
-43. (canceled)
-48. (canceled)
A filter cartridge for use in gas/liquid separation;
- the filter cartridge comprising:
- (a) an extension of filter media surrounding and defining an open filter interior;
- and,
- (b) first and second end pieces;
- (i) the media being positioned between the first and second end pieces;
- and,
- (ii) the second end piece being having a closed external receiver therein projecting into the open filter interior and toward the first end piece;
- and,
- (c) a central cartridge support around which the media is positioned;
- (i) the first end piece being secured onto the central cartridge support after the media is positioned on the central cartridge support.
-76. (canceled)
A filter cartridge for use in gas/liquid separation;
- the filter cartridge comprising:
- (a) an extension of filter media surrounding and defining an open filter interior;
- (b) first and second end pieces;
- (i) the media being positioned between the first and second end pieces;
- (ii) the first end piece having a central flow aperture therethrough in gas flow communication with the open filter interior;
- (iii) the first end piece includes an outer surface with a projection arrangement projecting therefrom in a direction away from the media;
- (iv) the projection arrangement comprises at least one projection member that projects to a location a distance of at least 5 mm from adjacent portions of the first end piece, in a direction away from the media;
- (c) a housing seal arrangement positioned on the first end piece at a location with at least a portion of the housing seal arrangement completely surrounding the media.
-88. (canceled)
-102. (canceled)
A method of assembling a filter cartridge for a crankcase ventilation filter assembly;
- the method comprising steps of:
- (a) positioning media on a central cartridge support and around a central interior;
- and,
- (b) snap-fit attaching an end piece to the central cartridge support and in overlap with an end of the media.
(canceled)
Dependencies are inferred from the claim text.