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An air separation module includes a housing, a bundle of hollow fiber membranes, and a clam shell axial support assembly. The axial support assembly includes two supportive elements, each supportive element including a flow-through component. The flow-through component includes a plurality of openin

An air separation module includes a housing, a bundle of hollow fiber membranes, and a clam shell axial support assembly. The axial support assembly includes two supportive elements, each supportive element including a flow-through component. The flow-through component includes a plurality of openings through which a supply of fluid (e.g. oxygen enriched air) may pass. The axial support assembly is secured around the bundle of hollow fiber membranes at a position radially inward from the housing and radially outward from the fiber bundle.

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1. An apparatus, comprising: a housing structure;a potted bundle within said housing structure, said potted bundle including a fiber bundle of hollow fiber membranes and a tubesheet at one end of the fiber bundle;an inlet element affixed to, and for fluid communication into, said housing structure,

1. An apparatus, comprising: a housing structure;a potted bundle within said housing structure, said potted bundle including a fiber bundle of hollow fiber membranes and a tubesheet at one end of the fiber bundle;an inlet element affixed to, and for fluid communication into, said housing structure, said inlet element adjacent said one end of said fiber bundle;an outlet element affixed to, and for fluid communication out of, said housing structure, said outlet element positioned directly opposite of and radially opposite from said tubesheet;an axial support assembly positioned around said potted bundle, radially outward from said fiber bundle, radially inward from said housing structure;an o-ring positioned between said housing structure and said tubesheet,wherein the tubesheet includes a support coupling groove,wherein a tubesheet coupling component of the axial support assembly is engaged in the support coupling groove, wherein said tubesheet coupling component has a flat, collar configuration;wherein said support coupling groove and tubesheet coupling component are directly opposite of and radially opposite from an opening of said outlet element. 2. The apparatus of claim 1, wherein said axial support assembly includes two supportive elements. 3. The apparatus of claim 1, wherein said axial support assembly includes a plurality of openings. 4. The apparatus of claim 1, wherein said axial support assembly includes a flow-through component and the tubesheet coupling component. 5. The apparatus of claim 1, wherein said axial support assembly includes a plurality of circumferentially spaced apart longitudinal slots. 6. The apparatus of claim 1, wherein said tubesheet includes an epoxy filled with metal flakes. 7. The apparatus of claim 1, wherein said axial support assembly includes a rolled strip of a perforated plate. 8. An apparatus, comprising: a housing structure having an inside diameter;an inlet element affixed to the housing structure;an outlet element affixed to the housing structure;a fiber bundle having a plurality of hollow fiber membranes;a tubesheet positioned radially opposite from said outlet element and in contact with an end of said fiber bundle;wherein said fiber bundle has, opposite from said tubesheet, a first radius and has, distal from said tubesheet, a second radius, wherein said first radius is smaller than said second radius;two supportive elements positioned between said fiber bundle and said housing structure,wherein at least one of said two supportive elements has a flow-through component;wherein said two supportive elements have a combined outside diameter that is less than said inside diameter of said housing structure,wherein a differential between said outside diameter and said inside diameter enables fluid to flow from said flow-through component to said outlet element. 9. The apparatus of claim 8, wherein each supportive element includes a tubesheet coupling component, said flow-through component is integral to said tubesheet coupling component. 10. The apparatus of claim 8, wherein said supportive elements are secured together. 11. The apparatus of claim 8, wherein said tubesheet includes a face seal groove.