Ceramic filters

Details Ceramic filters Ceramic filters

1985-06-07

1987-02-17

Lacey, David L.

Gas separation

Specific media material

Ceramic or sintered

55DIG30, 422180, 428116, B01D 3920

Patent

active

046437495

ABSTRACT:
A ceramic filter for collecting Diesel exhaust particulates has a plurality of interlaced porous internal walls defining a plurality of axial inlet passages extending adjacent to a plurality of axial outlet passages. Each of the internal walls has a three dimensional porous ceramic network structure to permit gases to flow from an adjacent inlet passage through the pores in the wall to an adjacent outlet passage. The cross-sectional configurations of the inlet and outlet passages is determined to assure that each of the internal walls has a wall thickness which varies widthwise of the wall. The wall thickness is minimum in the central zone of the width of each of the walls and is increased toward the lateral sides of the width of each of the walls.

REFERENCES:
patent: 4329162 (1982-05-01), Pitcher, Jr.
patent: 4364761 (1982-12-01), Berg et al.
patent: 4416676 (1983-11-01), Montierth
patent: 4417908 (1983-11-01), Pitcher, Jr.
patent: 4420316 (1983-12-01), Frost et al.
patent: 4428758 (1984-01-01), Montierth

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