Aerosol separator assembly; components; and methods
AssigneeDonaldson Company, Inc.
InventorsThomas John Lundgren, Bradley Allen Hemish, Daniel Eric Adamek, Wade Stephen Mosset
Life of this patent
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Abstract
A filter cartridge for use in separating a hydrophobic liquid aerosol phase from a gas stream, as a crankcase ventilation filter for example, is described. The cartridge includes a media pack comprising filtration media surrounding an open interior and a first end piece. Various structure included on the first end piece is described. An example is a D-shaped projection. Also described is an assembly including the filter cartridge, specific features of a housing component of the assembly. Methods of assembly and use are also described.
Claims20
A filter cartridge for use in separating a hydrophobic liquid aerosol phase from a gas stream and for use in filtering the gas stream;
- the filter cartridge comprising:
- (a) a media pack comprising filtration media surrounding an open interior and including first and second, opposite, ends;
- (b) a first end piece adjacent the first end of the media pack;
- the first end piece having a first, outer, end surface on an opposite side of the first end piece from the media pack;
- (i) the first end piece including a perimeter housing seal arrangement thereon;
- the perimeter housing seal arrangement comprising a seal member configured to form a larger perimeter than the media pack and configured to form a releasable seal with a housing, when the filter cartridge is installed in a housing, for use;
- (ii) the first end piece including a central flow aperture arrangement projecting therethrough in communication with the open interior of the media pack;
- and
- (iii) the first end piece including a non-circular projection positioned around the central flow aperture arrangement and projecting from the first end piece in a direction axially opposite the media pack;
- the non-circular projection being positioned spaced from an outer perimeter of the first end piece.
A filter cartridge for use in separating a hydrophobic liquid aerosol phase from a gas stream and for use in filtering the gas stream;
- the filter cartridge comprising:
- (a) a media pack comprising filtration media surrounding an open interior and including first and second, opposite, ends;
- (b) a first end piece adjacent the first end of the media pack;
- the first end piece having a first, outer, end surface on an opposite side of the first end piece from the media pack;
- (i) the first end piece including a perimeter housing seal arrangement thereon;
- (ii) the first end piece including a central flow aperture arrangement projecting therethrough in communication with the open interior of the media pack;
- and
- (iii) the first end piece including a non-circular projection positioned around the central flow aperture arrangement and projecting from the first end piece in a direction axially opposite the media pack;
- the non-circular projection being positioned spaced from an outer perimeter of the first end piece;
- (A) the non-circular projection being non-continuous and including a liquid drain gap arrangement therethrough;
- and,
- (B) the non-circular projection defining an outer perimeter with a first straight side portion and an opposite curved side portion.
Dependencies are inferred from the claim text.