HONEYCOMB BODY WITH A CROSS- SECTIONAL REGION WHICH IS BORDERED IN THE INTERIOR, IN PARTICULAR FOR SMALL ENGINES

摘要

THE INVENTION PROVIDES A CATALYTIC CONVERTER (1) IN A HOUSING (3) FOR AN EXHAUST GAS SYSTEM OF AN INTERNAL COMBUSTION ENGINE. IN PARTICULAR A SMALL ENGINE, WHEREIN THE CATALYTIC CONVERTER (1) HAS AT LEAST ONE STRUCTURED SHEET (2) WHICH IS PROVIDED WITH A CATALYTICALLY ACTIVE MATERIAL AND WHICH IS WOUND AND WHICH FORMS PASSAGES (5) THROUGH WHICH EXHAUST GAS CAN FLOW AND WHICH AT LEAST PARTIALLY BEARS AGAINST THE HOUSING (3). THE STRUCTURING OF THE SHEET (2) IS SUCH THAT, AS CONSIDERED OVER A CROSS-SECTION OF THE HOUSING 93), A CROSS-SECTIONAL AREA WHICH IS BORDERED -IN BY CLOSED PASAGES (5) CONSTITUTES AT LEAST HALF OF THE TOTAL CROSS-SECTION OF THE HOUSING (3) , WHEREIN THE CATALYTIC CONVERTER (1) HAS AT MOST TWO LAYERS (11). THE INVENTION ALSO PROVIDES A PROCESS FOR THE PRODUCTION OF A CATALYTIC CONVERTER CARRIER BODY WHICH IS ARRANGED IN AN EXHAUST GAS SYSTEM OF AN INTERNAL COMBUSTION ENGINE. IN PARTICULAR IN A SILENCER OF A SMALL ENGINE, WHEREIN - A STRUCTURED SHEET IS WOUND IN INCLINEDLY AROUND AN AT LEAST PARTIALLY CURVED ELONGATE BODY.- SUBSEQUENTLY AT LEAST A PART OF THE ELONGATE BODY WITH THE WOUND-ON SHEET IS DIVIDED INTO A PLURALITY OF PORTIONS, AND - A RESPECTIVE PORTION BECOMES A CATALYTIC CONVERTER CARRIER BODY.(FIG. 1)