FILTER MEDIUM COMPRISING A FINE FIBER LAYER

This disclosure describes a filter medium that minimizes the adverse effects of variations in flow rate on filter medium efficiency without a corresponding increase in pressure drop. The filter medium includes a support layer, a continuous fine fiber layer, and an efficiency layer. The continuous fi...

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Bibliographische Detailangaben
Hauptverfasser: JONES Derek O, SAVSTROM Jacob C, IGNACIO-DE LEON Patricia A, WILLIS Klenton T, WEIK Thomas M
Format: Patent
Sprache:eng ; spa
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Beschreibung
Zusammenfassung:This disclosure describes a filter medium that minimizes the adverse effects of variations in flow rate on filter medium efficiency without a corresponding increase in pressure drop. The filter medium includes a support layer, a continuous fine fiber layer, and an efficiency layer. The continuous fine fiber layer includes a continuous fine fiber that has a diameter of up to 10 micrometers and is located downstream of the efficiency layer. La presente descripción describe un medio de filtro que minimiza los efectos adversos de las variaciones de caudal sobre la eficiencia del medio de filtro sin un aumento correspondiente de la caída de presión. El medio de filtro incluye una capa de soporte, una capa de fibra fina continua y una capa de eficiencia. La capa de fibra fina continua incluye una fibra fina continua que tiene un diámetro de hasta 10 micrómetros y se localiza corriente abajo de la capa de eficiencia.