Honeycomb
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United States of America Patent
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Sep 21, 2004
Grant Date -
N/A
app pub date -
May 15, 2000
filing date -
May 14, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a honeycomb (14), particularly a catalytic converter substrate, with a honeycomb structure comprising a large number of ducts (16) running in the longitudinal direction of the honeycomb, through which a fluid can flow, where the honeycomb possesses foil layers (15) arranged one above the other. In order to create a honeycomb permitting high efficiency of the catalytic conversion reactions with low thermal inertia, as well as inexpensive manufacture, it is proposed to provide ducts (16) whose cross-sectional dimension in a first direction is several times the cross-sectional dimension in another direction. In particular, the ducts can extend over the entire width of the honeycomb. In order to stabilise the honeycomb, stiffening elements (19, 20) can be provided, which are either integrated in the foil layers or separate (FIG. 3).
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