Patent ID: 8992652
Filing Date: 2015-03-31
Classification: B01D,F01N,Y02T

Abstract:
1. A diesel particulate filter, comprising: a ceramic spirally wound filter body for filtering a fluid flow, the filter body having a longitudinal axis extending through a center of the filter body, the ceramic filter body including wherein the wavy length in the wavy layer increases along the spiral winding from the inside to the outside with increasing distance to the longitudinal axis of the filter body in such a way that the wave troughs of a first portion of wavy layer are radially aligned with and resting upon adjacent respective wave peaks of an adjacent portion of the wavy layer, the first portion wave troughs abutting against a first side of the flat layer and radially aligned with the adjacent portion wave peaks abutting against an opposing second side of the flat layer; wherein wave troughs and corresponding wave peaks of at least radially adjacent windings lie each on a respective one of a plurality of common radial planes, the plurality of common radial planes intersecting at the longitudinal axis.