Exhaust system component

Abstract

The present invention relates to an exhaust system component (1) for an exhaust system of a combustion engine, in particular of a motor vehicle, with a housing (2) having at least one housing wall (4), which separates an interior space (5) of the housing (2) exposed to an internal pressure (Pi) during the operation of the exhaust system from a surroundings (6) surrounding the housing (2) and having an ambient pressure (Pu). In order to improve the durability of the component (1) even with small wall thicknesses, at least one stiffening element (3) can be provided, which is fastened to and arranged on the housing (2) such that it counteracts an internal pressure (Pi) that is above the ambient pressure (Pu) induced by the deformation of the housing wall (4).

Description

technical field

[0001] The invention relates to an exhaust system component for an exhaust system of an internal combustion engine, in particular a motor vehicle internal combustion engine. technical background

[0002] Conventional exhaust system components, such as mufflers, particulate filters, catalytic converters, and SCR systems, among others, typically include a housing having at least one housing wall that will be exposed during operation of the exhaust system The interior space of the housing at internal pressure is separated from the surrounding environment surrounding the housing at ambient pressure. Here, the internal pressure is generally greater than the ambient pressure, so that the corresponding housing wall is pressed towards the outside. In order to reduce the fuel consumption of motor vehicles, other means are tried to reduce the weight as much as possible. For exhaust system components this means that the housings are produced with a reduced thickness. ...

Examples

Embodiment Construction

[0028] and Figures 1 to 11 Correspondingly, the exhaust system component 1 comprises a housing 2 and at least one stiffening element 3 . The exhaust system component 1 , which is also referred to below as component 1 , is used in an exhaust system of an internal combustion engine, preferably an exhaust system of a motor vehicle internal combustion engine, more preferably a commercial vehicle internal combustion engine. This component 1 is for example a muffler or an exhaust gas treatment device, like for example a particle filter, a catalytic converter, a NOx storage unit, a three-way catalytic converter or an SCR system. In principle, combinations of the aforementioned devices are also possible.

[0029]The housing 2 includes at least one housing wall 4 , which separates an interior 5 of the housing 2 from an environment 6 of the housing 2 . When the exhaust system is in operation, an internal pressure Pi is present in the interior space 5 and an ambient pressure Pu is pre...

technical field

[0001] The invention relates to an exhaust system component for an exhaust system of an internal combustion engine, in particular a motor vehicle internal combustion engine. technical background

[0002] Conventional exhaust system components, such as mufflers, particulate filters, catalytic converters, and SCR systems, among others, typically include a housing having at least one housing wall that will be exposed during operation of the exhaust system The interior space of the housing at internal pressure is separated from the surrounding environment surrounding the housing at ambient pressure. Here, the internal pressure is generally greater than the ambient pressure, so that the corresponding housing wall is pressed towards the outside. In order to reduce the fuel consumption of motor vehicles, other means are tried to reduce the weight as much as possible. For exhaust system components this means that the housings are produced with a reduced thickness. ...

Examples

Embodiment Construction

[0028] and Figures 1 to 11 Correspondingly, the exhaust system component 1 comprises a housing 2 and at least one stiffening element 3 . The exhaust system component 1 , which is also referred to below as component 1 , is used in an exhaust system of an internal combustion engine, preferably an exhaust system of a motor vehicle internal combustion engine, more preferably a commercial vehicle internal combustion engine. This component 1 is for example a muffler or an exhaust gas treatment device, like for example a particle filter, a catalytic converter, a NOx storage unit, a three-way catalytic converter or an SCR system. In principle, combinations of the aforementioned devices are also possible.

[0029]The housing 2 includes at least one housing wall 4 , which separates an interior 5 of the housing 2 from an environment 6 of the housing 2 . When the exhaust system is in operation, an internal pressure Pi is present in the interior space 5 and an ambient pressure Pu is pre...

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