초록 ▼

A combination filter element comprising a bundle of hollow microporous fibers housed within an extruded carbon block, wherein the carbon block is fabricated to balance particle retention capacity against absorption capacity to provide a composite filter with desirable pressure drop, filter life, and

A combination filter element comprising a bundle of hollow microporous fibers housed within an extruded carbon block, wherein the carbon block is fabricated to balance particle retention capacity against absorption capacity to provide a composite filter with desirable pressure drop, filter life, and particulate and chemical contamination reduction, and a filtration device, in which combination filter element may be employed, having a base portion including a sump which has an inlet and an outlet and a base which has a reception port for receiving the filter element.

대표청구항 ▼

1. A method for fabricating a compound filter cartridge for filtering fluids comprising the steps of:a) providing a carbon block filter element having an outer surface and an inner surface, said carbon block filter element inner surface defining a void approximately concentric with a central axis of

1. A method for fabricating a compound filter cartridge for filtering fluids comprising the steps of:a) providing a carbon block filter element having an outer surface and an inner surface, said carbon block filter element inner surface defining a void approximately concentric with a central axis of said carbon block filter element, said carbon block filter element having sufficient permeability to permit passage of fluid from said outer surface through said inner surface of said carbon block filter element into said void and having a k-value of between 0.01 to about 0.10; b) providing a selectively permeable fiber bundle comprising a plurality of hollow, microporous fibers each having a first open end and a second open end an a multiplicity of pores along the surface thereof, wherein said first and second open-ends are potted in a sealing compound body such that said first open end and said second open end of each of said hollow, microporous fibers are exposed on an outer end face of said sealing compound body permitting fluid flowing radially toward said central axis and entering said hollow, microporous fibers to exit through said outer end face of said sealing compound body; c) positioning said selectively permeable fiber bundle in said void of said carbon block filter element such that more than about 40% of the surface area of the selectively permeable fiber bundle is unsheathed from radial flows; and d) scalingly connecting said sealing compound body to said outer surface of said carbon block filter element.