Patent ID: 9039800
Filing Date: 2015-05-26
Classification: B01D

Abstract:
1. A filter arrangement, comprising a self-supporting areal filter element ( 1 ), a carrier pipe, and a sleeve, the filter element having a circumference ( 2 ) adapted to be fixed directly or indirectly to the carrier pipe to cover a free cross section of the carrier pipe, the circumference ( 2 ) of the filter element ( 1 ) circumscribes a central filter plane ( 4 ), the filter element ( 1 ) comprises at least one layer formed of a plastically deformable material and is provided with at least one undulation ( 5 ) or bead ( 13 ), which does not intersect the circumference ( 2 ), such that the filter element ( 1 ) intersects the filter plane ( 4 ), or a plane ( 4 a ) parallel thereto, at least four times within the circumference ( 2 ), the filter element ( 1 ) is fixed to the carrier pipe ( 8 ) and covers a clear internal cross section thereof, the filter element ( 1 ) is, at the circumference ( 2 ) thereof, bent to form a circumferential region running parallel to an outer wall of the carrier pipe ( 8 ), and the sleeve ( 10 ) clamps the circumferential region between itself and the carrier pipe ( 8 ).