Exhaust component and method for producing an exhaust component
First Claim
1. An exhaust component, comprising at least two inlet lines for connection to an internal combustion engine and each having an inner line;
- and a wall having two wall elements,wherein each wall element having two metal shells and a layer of heat-insulating material which is located between the shells, wherein the two wall elements have edge sections which are connected to one another, and together, in cross section, surround the inner lines of all the inlet lines, wherein each inner line is, in cross section, at least partially separated by a hollow intermediate space, from the wall elements which surround the inner line in cross section and delimit an exhaust passage, wherein the exhaust component further comprises an inner collection wall which is mostly separated by the hollow intermediate space from the wall elements which surround the inner collection wall in cross section, and which delimit an inner collection space, wherein the inner line of each inlet line has an inlet end section rigidly connected to the two wall elements, and an outlet end section connected to the inner collection wall, and wherein at least one of the outlet end section of each inner line and the inner collection wall is displaceable, respectively, relative to the inner collection wall and relative to the wall elements, wherein the exhaust component further comprises an exhaust manifold including said inlet lines, and a catalytic converter containing catalyst means for catalytic treatment of the exhaust gas and connected to the inner lines.
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Accused Products
Abstract
The exhaust component has an exhaust manifold with at least two inlet lines, and, for example, also a catalytic converter and a wall with two composite wall elements. The two wall elements together, in cross section, surround interior spaces of all the inlet lines and, if appropriate, also the catalyst means of the catalytic converter. Each wall element has two single-piece metal shells and a layer of heat-insulating material which is arranged between these shells, so that each wall element provides good thermal insulation. During the production of a wall element, the shells belonging to this element, as well as the layer of insulating material arranged between them, are together subjected to plastic deformation. This allows inexpensive production of the wall.
91 Citations
23 Claims
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1. An exhaust component, comprising at least two inlet lines for connection to an internal combustion engine and each having an inner line;
- and a wall having two wall elements,
wherein each wall element having two metal shells and a layer of heat-insulating material which is located between the shells, wherein the two wall elements have edge sections which are connected to one another, and together, in cross section, surround the inner lines of all the inlet lines, wherein each inner line is, in cross section, at least partially separated by a hollow intermediate space, from the wall elements which surround the inner line in cross section and delimit an exhaust passage, wherein the exhaust component further comprises an inner collection wall which is mostly separated by the hollow intermediate space from the wall elements which surround the inner collection wall in cross section, and which delimit an inner collection space, wherein the inner line of each inlet line has an inlet end section rigidly connected to the two wall elements, and an outlet end section connected to the inner collection wall, and wherein at least one of the outlet end section of each inner line and the inner collection wall is displaceable, respectively, relative to the inner collection wall and relative to the wall elements, wherein the exhaust component further comprises an exhaust manifold including said inlet lines, and a catalytic converter containing catalyst means for catalytic treatment of the exhaust gas and connected to the inner lines. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
wherein the wall elements together tightly limit an interior space in which the inner lines and at least a substantial part of the inner collection wall are located, and wherein the interior space forms the intermediate space containing at least one of a substantially stationary exhaust gas and air.
- and a wall having two wall elements,
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12. An exhaust component, comprising at least two inlet lines for connection to an internal combustion engine and each having an inner line;
- and a wall having two wall elements,
wherein each wall element has two metal shells and a layer of heat-insulating material which is located between the shells, wherein the two wall elements have edge sections which are connected to one another and together, in cross section, surround the inner lines of all the inlet lines, wherein each inner line is, in cross section, at least partially separated by a hollow intermediate space from the wall elements which surround the inner line in cross section and delimit an exhaust passage, wherein the exhaust component further comprises an inner collection wall which is mostly separated by the hollow intermediate space from the wall elements which surround the inner collection wall in cross-section, and which delimits an inner collection space, wherein the inner collection wall is rigidly connected to at least one of the wall elements by a bush adapter to support a lambda probe that projects into an inner collection space defined by the inner collection wall, and wherein the inner line of each inlet line has an inlet end section rigidly connected to the two wall elements, and an outlet end section connected to the inner collection wall and displaceable with respect to inner collection wall, and wherein the exhaust component further comprises an exhaust manifold including said inlet lines. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
- and a wall having two wall elements,
Specification