Diesel particulate filter apparatus

Details Diesel particulate filter apparatus Diesel particulate filter apparatus

1996-05-03

1997-11-04

Husar, Stephen F.

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

60303, 60311, 55523, 55524, 55521, F01N 310

Patent

active

056827407

ABSTRACT:
In a diesel particulate filter apparatus, the surface of the fiber of a ceramic fiber material 5 such as a silicon carbide fiber material is covered with a coating layer made up of a Ba.sub.2 In.sub.2 O.sub.5, Ba.sub.3 Y.sub.4 O.sub.9 or BaLa.sub.2 O.sub.4 compound having a brownmillerite-like structure having an NO.sub.x -reducing action, and a glass layer. A filter body is constituted of a nonwoven fabric which is the randomly laminated ceramic fiber material with the coating layer on the surface of the fiber thereof. Alternatively, the diesel particulate filter apparatus may be constituted of a filter body made of a nonwoven fabric which is a randomly laminated ceramic fiber material, and a porous sinter containing the above-mentioned compound, provided that the porous sinter is disposed on the downstream side of the filter body.

REFERENCES:
patent: 4264344 (1981-04-01), Ludecke et al.
patent: 5100632 (1992-03-01), Dettling et al.
patent: 5179061 (1993-01-01), Haerle
patent: 5458664 (1995-10-01), Ishii et al.
patent: 5560757 (1996-10-01), Suzuki et al.

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