EP 0121175 B1 19870121 - HELICALLY WOUND CONICAL SHAPE METAL STRIP CATALYST SUPPORTING MATRIX FOR INTERNAL-COMBUSTION ENGINES
Title (en)
HELICALLY WOUND CONICAL SHAPE METAL STRIP CATALYST SUPPORTING MATRIX FOR INTERNAL-COMBUSTION ENGINES
Publication
Application
Priority
DE 3311724 A 19830330
Abstract (en)
[origin: EP0121175A1] 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).
IPC 1-7
IPC 8 full level
B01J 35/04 (2006.01); F01N 3/28 (2006.01); F01N 13/02 (2010.01)
CPC (source: EP)
F01N 3/28 (2013.01); F01N 3/281 (2013.01); F01N 3/2821 (2013.01); F01N 3/2892 (2013.01); F01N 13/0097 (2014.06); F01N 2330/02 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0121175 A1 19841010; EP 0121175 B1 19870121; AT E25128 T1 19870215; DE 3311724 A1 19841004; DE 3462171 D1 19870226
DOCDB simple family (application)
EP 84103016 A 19840319; AT 84103016 T 19840319; DE 3311724 A 19830330; DE 3462171 T 19840319