AIR FILTER

PURPOSE:To extend the life of a filter by processing a sheet-like electret material into a pleat shape and forming air passing spaces in the fold direction of pleats. CONSTITUTION:A sheet-like electret material is subjected to pleat processing to form a chevron-shape spaces piercing in the direction...

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Bibliographic Details
Main Authors TAKASHIMA KAZUNARI, KIMURA TAIZO, SHIMADA KENICHI, MURATA MASAO, NAGOSHI HITOSHI, TOMITA MAKOTO
Format Patent
LanguageEnglish
Published 28.03.1991
Subjects
MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS
MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS
TRANSPORTING
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Summary:PURPOSE:To extend the life of a filter by processing a sheet-like electret material into a pleat shape and forming air passing spaces in the fold direction of pleats. CONSTITUTION:A sheet-like electret material is subjected to pleat processing to form a chevron-shape spaces piercing in the direction of folds 12. Air is passed through said spaces 13 in parallel to electret along the direction of the folds 12 to collect dust. By this method, pressure loss can be reduced and the length of the spaces 13 in the air passing direction is easily increased to make it possible to largely form the contact area with dust and dust collecting efficiency is made excellent and the life can be extended.
Bibliography:Application Number: JP19890209345