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US 7,674,306 B2Granted
Multilayered long life filter using convoluted foam
AssigneeVisteon Global Technologies, Inc.
InventorsNeville J. Bugli, Mark D. Hellie, Reza Abdolhosseini
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Abstract
A filtration device is disclosed, wherein filtering layers are formed from foam and include convolutions formed in at least one surface thereof.
Claims14
A filter element adapted to be disposed in a filter housing comprising:
- a first foam filtering layer having a first convoluted surface and a spaced apart second convoluted surface, wherein the first and second convoluted surfaces are formed by a plurality of projections extending outwardly from the first foam filtering layer and terminating at distal ends;
- and
- a second foam filtering layer having a substantially planar surface and a spaced apart convoluted surface, wherein the spaced apart convoluted surface is formed by a plurality of projections extending outwardly from the second foam filtering layer and terminating at distal ends,
- wherein the distal ends of the projections on the second convoluted surface of the first foam filtering layer abut the substantially planar surface of the second foam filtering layer, wherein the first foam filtering layer and the second foam filtering layer are directly stacked on one another.
1 more element
A filtration device comprising:
- a filter housing having an inlet and an outlet;
- and
- a filter element including
- a first foam filtering layer having a first convoluted surface and a spaced apart second convoluted surface, wherein the first and second convoluted surfaces are formed by a plurality of projections extending outwardly from the first foam filtering layer and terminating at distal ends;
- and
- a second foam filtering layer having a substantially planar surface and a spaced apart convoluted surface, wherein the spaced apart convoluted surface is formed by a plurality of projections extending outwardly from the second foam filtering layer and terminating at distal ends,
- wherein the filtering layers are arranged in a stacked relationship from the inlet of the filter housing to the outlet of the filter housing and configured for a fluid to flow therethrough from the inlet to the outlet,
- wherein the distal ends of the projections on the second convoluted surface of the first foam filtering layer abut the substantially planar surface of the second foam filtering layer, wherein the first foam filtering layer and the second foam filtering layer are directly stacked on one another.
5 more elements
Dependencies are inferred from the claim text.