US 2004/0105792 A1 · Multi-bed catalyzer

Abstract

The present invention relates to a multi-bed catalyzer (1) for an exhaust system of a combustion engine, in particular, of a motor vehicle. In a housing (2), at least two catalytic monoliths (3, 4) are arranged axially adjacent to be flowed-through in succession. The two monoliths (3, 4) are encased on the circumferential side by a common heat-resistance bearing mat (5) and supported by means of this bearing mat (5) in the housing (2). In order to enable a predetermined axial minimal distance between the two monoliths (3, 4), at least two heat-resistant distancing elements (9) are distributed circumferentially and axially between the two monoliths (3, 4), so that the monoliths are axially supported on one another by means of the distancing elements (9).

Claims18

Dependent claims

A multi-bed catalyzer for an exhaust system of a combustion engine, in particular, of a motor vehicle,

with a housing (2), in which at least two catalytic monoliths (3, 4) are arranged axially adjacent and are arranged to be axially flowed-through with current in succession,
wherein the two monoliths (3, 4) are encased on a circumfertial side by a common heat-resistant bearing mat (5) and are supported by means of the bearing mat (5) in the housing (2),
wherein axially between the two monoliths (3, 4) at least two heat-resistance distancing elements (9) are arranged to be circumferentially distributed, wherein the monoliths are axially supported on one another by means of the distancing elements (9).

Dependencies are inferred from the claim text.

Facts

Application

10/683,755Filed 10 Oct 2003

Priority

DE 102 54 036.52 Nov 2002

Published

3 Jun 2004

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

F01N 3/2875
Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration: by using elastic means,…
F01N 3/2853
Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration: using mats or gaskets…
F01N 13/0097
Having two or more separate purifying devices arranged in series: the purifying devices are arranged in a single housing
F01N 13/008
Exhaust or silencing apparatus characterised by constructional features: mounting or arrangement of exhaust sensors in or on exhaust apparatus

Multi-bed catalyzer

Life of this patent

Multi-bed catalyzer

Life of this patent

Abstract

Claims18