| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a filter assembly having improved filtration surface area and a metal made filter body for the same. Ž<P>SOLUTION: The filter assembly 1 is constituted of a metallic porous body, has at least two or more cylindrical filter bodies 2 having an optional length in the axial direction, arranged to be apart from each other in a base member 3 and is enveloped by a housing container 5, wherein the metallic filter body 2 comprises a cylindrical body having a non-circular shaped cross-sectional surface and having a flat surface 6 in which a part of an external line drawing the profile is flattened in the width dimension (L1) of 5-48% of the whole circumferential length (LO) and the flat surface 6 and the flat surface 6 of the other cylindrical filter body 2 are oppositely arranged with a prescribed interval (S). In the filter assembly 1, the filter body is provided with a plurality of projections on the outer circumferential surface and includes one in which a part of a virtual average line made by connecting points of (1/2H) average height of the projections forms the flat surface. The metallic filter body is formed of a layered sintered porous body comprising stainless steel fiber and/or stainless steel powdery material. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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