Composite Filter Media Utilizing Bicomponent Fibers
AssigneeCummins Filtration IP, Inc.
InventorsWilliam C. Haberkamp, Eric A. Janikowski, Kyle Ellison, Barry Mark Verdegan, Christopher E. Holm
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Abstract
Disclosed is composite media that may be utilized in coalescing elements, coalescing cartridges, coalescing systems, and coalescing methods. The disclosed media typically is a composite or laminate material formed by bonding adjacent layers of media material comprising bicomponent fibers.
Claims43
A composite media formed by bonding at least three layers of media material from an upstream direction to a downstream direction, namely Layer A, optionally Layer B, Layer C, and Layer D, wherein one or more of the layers adjacent to Layer C comprises bicomponent polymeric fibers, the layers having characteristics as follows:
- Layer A comprises polymeric media material having a nominal mean fiber diameter of greater than about 10 μm;
- Layer C comprises polymeric material comprising nanofibers and having a mean pore size of 0.2-10 μm;
- and Layer D comprises polymeric material having a nominal mean fiber diameter greater than about 10 μm and provides support for the preceding layers.
Dependencies are inferred from the claim text.