Invention Grant
US08147693B2 Multi-layer filter including retainers 有权
多层过滤器,包括保持架

Multi-layer filter including retainers
Abstract:
A multi-layer filter including a first media layer surrounded by a second media layer, a third media layer surrounding the second media layer, and at least one retainer disposed between the first and second media layers or between the second and third media layers. The first, second and third media layers surround the central axis of the filter. The filter has multiple media layers in a compact package, providing increased media surface area which allows greater contaminant holding capacity, lower pressure drop, and lower face velocity.
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