Catalytic converter substrate with a plurality of cell groups ha

Details Catalytic converter substrate with a plurality of cell groups ha Catalytic converter substrate with a plurality of cell groups ha

1996-08-09

1998-05-19

Watkins, William

Stock material or miscellaneous articles

Structurally defined web or sheet

Honeycomb-like

428118, 428131, 422171, 422180, 422222, 422169, 422168, B32B 312, B01J 3504

Patent

active

057533393

ABSTRACT:
A catalytic converter substrate comprising: a plurality of cell groups, each cell group comprising a plurality of air-flow cells extending axially through the substrate, each cell group comprising a first set of walls defining a radially outer periphery thereof and a second set of walls suspended by the first set of walls partitioning the individual air-flow cells from each other, wherein the first set of walls has a first effective thermal mass and the second set of walls has a second effective thermal mass, wherein the first effective thermal mass is greater than the second effective thermal mass.

REFERENCES:
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patent: 4348360 (1982-09-01), Chang et al.
patent: 4448828 (1984-05-01), Mochida et al.
patent: 4810554 (1989-03-01), Hattori et al.
patent: 4840827 (1989-06-01), Mizutani et al.
patent: 5108685 (1992-04-01), Kragle
patent: 5376345 (1994-12-01), Pfefferle
patent: 5390494 (1995-02-01), Clegg
patent: 5456965 (1995-10-01), Machida et al.

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