Exhaust system component
View Patent ↗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 ).
1. An exhaust system component for an exhaust system of a combustion engine, in particular of a motor vehicle, comprising:
a housing having at least one housing wall, which separates an interior space of the housing exposed to an internal pressure (Pi) during the operation of the exhaust system from an environment surrounding the housing and having an ambient pressure (Pu),
at least one stiffening element which is fastened to and arranged on the housing such that it counteracts a deformation of the housing wall induced by the internal pressure that is above the ambient pressure.
2. The component according to claim 1 , wherein the at least one stiffening element is configured rod-shaped or web-shaped or wire-shaped or band-shaped.
3. The component according to claim 1 , wherein the at least one stiffening element is configured as tension-stable tensile element, which during the operation of the exhaust system is exposed to a tensile loading.
4. The component according to claim 3 , wherein the tensile element is at least one of 1)arranged on an outside of the respective housing wall facing the environment, 2)fastened to the housing only in the region of its longitudinal ends, and 3) the tensile element, in particular between its longitudinal ends, loosely bears against the housing wall in a deformation region affected by the pressure-induced deformation.
5. The component according to claim 3 , wherein on the housing on an outside facing the environment one of at least one holder or at least one holding frame is arranged outside a moulding region of the housing wall affected by the pressure-induced deformation, on which the tensile element is supported.
6. The component according to claim 1 , wherein the at least one stiffening element is configured as pressure-stable pressure element, which during the operation of the exhaust system is exposed to a pressure loading.
7. The component according to claim 6 , wherein the pressure element is at least one of 1) arranged on an inside of the respective housing wall facing the interior space, 2) fastened to the housing only in the region of its longitudinal ends, and 3) the respective pressure element, in particular between its longitudinal ends, loosely bears against the housing wall in a deformation region affected by the pressure-induced deformation or is spaced from the housing wall.
8. The component according to claim 6 , wherein the pressure element is at least one of 1) a material whose temperature expansion coefficient is greater than the temperature expansion coefficient of the material of which the housing wall consists, and 2) is arranged in the housing so that it is exposed to exhaust gas or an exhaust gas flow during the operation of the exhaust system.
9. The component according to claim 1 , wherein the at least one stiffening element runs in a groove in particular between its longitudinal ends, which grooves are integrally formed on the housing wall, in particular by means of a bead.
10. The component according to claim 1 , wherein the housing wall is pre-molded in a deformation region affected by the pressure-induced deformation in the direction of the deformation or against the deformation.
11. The component according to claim 1 , wherein the at least one stiffening element is only fastened to the housing in the region of its longitudinal ends, namely in each case in a fastening region which is one of not affected or less affected by the pressure-induced deformation than a deformation region affected by the pressure-induced deformation, whose deformation counteracts the at least one stiffening element.
12. The component according to claim 1 , wherein the at least one stiffening element is configured as at least one of 1) a tension-stable tensile element that is assigned to a housing region which during the pressure loading of the interior space attempts to distance itself from a housing region located diametrically opposite, and 2) a pressure-stable pressure element, which supports two housing regions located diametrically opposite each other on each other, which during the pressure loading of the interior space attempt to approach each other.