Multicartridge diesel soot particulate filter
A particle filter and filter technology, applied in the direction of dispersed particle filtration, membrane filter, filtration separation, etc., can solve the problems of not adjustable mass efficiency, high thermal mass, long regeneration time, etc.
Inactive Publication Date: 2012-11-28
NV BEKAERT SA
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However, they are both characterized by a high thermal mass, resulting in longer regeneration times
In addition, its mass efficiency is not adjustable
Method used
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[0083] The present invention will now be described with respect to particular embodiments and with reference to the accompanying drawings but the invention is not limited thereto but only by the claims. The drawings described are only schematic and not restrictive. In the drawings, the size of some of the elements is exaggerated and not drawn on scale for convenience of illustration. These and related dimensions do not correspond to actual reductions in practice of the invention.
[0084]The following terms are provided merely to aid in the understanding of the present invention.
[0085] The term "porosity" P is understood as P=100*(1-d), where d=(1m 3 weight of sintered metal fiber medium) / (SF), where SF = per m of alloy of metal fibers forming sintered metal fiber medium 3 the weight of.
[0086] "Air Permeability" (also called AP) is measured using equipment as described in NF 95-352 (equivalent to ISO 4002). The test method of NF 95-352 ie ISO 4002 was changed to mak...
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Abstract
The invention relates to a multicartridge diesel soot particulate filter (100) comprising a casing delimiting the outer boundary of a filter volume. The filter has a central filter axis (170). The casing has an inflow side and an outflow side defining an average flow direction being substantially parallel to the central axis. The filter volume is filled with at least two filter cartridges, each of these filter cartridges having a central filter cartridge axis (170). The central filter cartridge axis (170) of the filter cartridges is substantially parallel to the average flow direction of the filter. The filter cartridges comprise a porous structure (101) comprising metal fibers. The filter cartridges provide a radial flow direction through said porous structure (101). The flow through the multicartridge diesel soot particulate filter is axial while the flow through the filter cartridges is radial. The invention further relates to a method of manufacturing a multicartridge diesel soot particulate filter.
Description
technical field [0001] The present invention relates to a multi-cartridge diesel soot particulate filter comprising a plurality of radial filter cartridges. The invention also relates to a method of manufacturing a multi-tube diesel soot filter and the use of a multi-tube diesel soot particle filter. Background technique [0002] A diesel soot particulate filter comprising metal fibers is known, for example, from WO 2007 / 079829. This type of filter is called an axial filter because its flow direction is axial. However, this type of filter has a number of disadvantages such as its limited area flow and relatively high pressure drop. It is also known in the art to employ ceramic filters to filter diesel engine emissions. However, they are all characterized by a high thermal mass, resulting in longer regeneration times. In addition, its mass efficiency is not adjustable. Contents of the invention [0003] The object of the present invention is to provide a filter which a...
Claims
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IPC IPC(8): F01N3/022B01D39/20B01D46/24B01D46/52B01D46/00F01N3/035
CPCB01D2239/1208B01D39/2041F01N2350/00F01N2330/14F01N2013/045F01N3/0218F01N13/18B01D2239/0636F01N2330/12B01D2239/0695B01D2239/1291F01N2340/00F01N3/035F01N3/0217F01N2450/30B01D2239/0654F01N3/0226B01D46/528F01N13/017Y10T29/14
Inventor I·席尔德曼斯J·旺达姆F·韦沙瓦
Owner NV BEKAERT SA