Development of a Diesel Particulate Filter Composition and Its Effect on Thermal Durability and Filtration Performance Corning Incorporated

Format:

Book

Conference/Event

Author/Creator:

Murtagh, Martin J., author.

Conference Name:

International Congress & Exposition (1994-02-28 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 1994

Summary:

This paper details the development of the EX-80 composition, a new cordierite material for use as a diesel particulate filter (DPF), that was developed based on the following objectives; (1) improved thermal durability, (2) high filtration efficiency and (3) low pressure drop. The achievement of these goals was demonstrated through engine testing, stress modeling, and other evaluations. EX-80 has a low coefficient of thermal expansion (CTE) averaging less than 4x10-7°C-1 (25°C-800°C), the Modulus of Rupture (MOR) averages greater than 350 psi and the Modulus of Elasticity (MOE) averages less than 0.8 x 106 psi. The improvement of these three properties has resulted in improved thermal durability for EX-80 as compared to the current Corning DPF compositions (EX-47, EX-54 and EX-66). The new cordierite composition has been designed to achieve a low pressure drop as a function of soot loading (0.30 inHg/gm of soot collected), coupled with high efficiency, averaging greater than 90%. Engine testing was performed by Ortech International on a Detroit Diesel 6V92TA DDECII engine to evaluate filtration performance. In addition to confirming that EX-80 meets the filtration efficiency and back pressure goals, microscopy studies of engine tested filters has led to further understanding of the filtration mechanism for wall-flow filters

Notes:

Vendor supplied data

Publisher Number:

940235

Access Restriction:

Restricted for use by site license