Abstract 1. A catalyst support body for internal combustion engines consisting of a supporting matrix with flat (8) and/or corrugated (7) sheet-metal strips which are spirally and, at least in sub-regions, helically wound and are connected to one another and to the inner side of a casing (20) by welding, soldering or sticking, characterized in that the ratio of the width (b) of the sheet-metal strips (7, 8) to the slope(s) of the helix or the diameter of the supporting matrix is so selected that no cross-section through the winding cuts all the sheet-metal strip layers, i.e. the axial spread (h) of the supporting matrix, which is in the form of a hollow cone, is greater than twice the width (b) of the sheet-metal strips (7, 8).
A catalyst support body for internal combustion engines consisting of a supporting matrix with flat (8) and/or corrugated (7) sheet-metal strips which are spirally and, at least in subregions, helically wound and are connected to one another and to the inner side of a casing (20) by welding, soldering or sticking, characterised in that the ratio of the width (b) of the sheet-metal strips (7, 8) to the slope(s) of the helix or the diameter of the supporting matrix is so selected that no cross-section through the winding cuts all the sheet-metal strip layers, i. e. the axial spread (h) of the supporting matrix, which is in the form of a hollow cone, is greater than twice the width (b) of the sheet-metal strips (7, 8).
Claim 2
Dependent Claim
126 words
A catalyst support body for internal combustion engines consisting of a supporting matrix with flat (8) and/or corrugated (7) sheet-metal strips which are spirally and, at least in subregions, helically wound and are connected to one another and to the inner side of a casing (20) by welding, soldering or sticking, characterised in that the ratio of the width (b) of the sheet-metal strips (7, 8) to the slope(s) of the helix or the diameter of the supporting matrix is so selected that no cross-section through the winding cuts all the sheet-metal strip layers, i. e. the axial spread (h) of the supporting matrix, which is in the form of a hollow cone, is greater than twice the width (b) of the sheet-metal strips (7, 8).
Claim 3
Dependent Claim
25 words
A catalyst support body as claimed in Claim 1, characterised in that the supporting matrix is in the form of a truncated hollow cone (9).
Claim 4
Dependent Claim
21 words
A catalyst support body as claimed in Claim 1, characterised in that in longitudinal section, the supporting matrix is W-shaped (10).
Claim 5
Dependent Claim
36 words
A catalyst support body as claimed in Claim 1, 2 or 3, characterised in that the support body consists of a plurality of partial matrix components which are axially arranged one behind another at spaced intervals.
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