Exhaust system for an internal combustion engine
First Claim
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1. An exhaust system for an internal combustion engine, in a motor vehicle, comprising:
- an exhaust line that carries exhaust gas,a housing;
a catalyst system contained in the housing;
an injection device, which is arranged upstream from the catalyst system on the exhaust line for spraying a liquid into the exhaust line, anda sump defined in the housing between the injection device and the catalyst system in the exhaust line, the sump having a collecting volume to receive condensation fluid,wherein, the collecting volume of the sump is the sole collecting volume in the housing, independent of the operating state of the internal combustion engine.
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Abstract
The invention relates to an exhaust system for an internal combustion engine, in particular in a motor vehicle, comprising an exhaust line that carries the exhaust gas, an SCR catalyst system arranged in the exhaust line and an injection device arranged on the exhaust line upstream from the SCR catalyst system for injecting an aqueous urea solution into the exhaust line.
9 Citations
19 Claims
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1. An exhaust system for an internal combustion engine, in a motor vehicle, comprising:
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an exhaust line that carries exhaust gas, a housing; a catalyst system contained in the housing; an injection device, which is arranged upstream from the catalyst system on the exhaust line for spraying a liquid into the exhaust line, and a sump defined in the housing between the injection device and the catalyst system in the exhaust line, the sump having a collecting volume to receive condensation fluid, wherein, the collecting volume of the sump is the sole collecting volume in the housing, independent of the operating state of the internal combustion engine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An exhaust system for an internal combustion engine, in a motor vehicle, comprising:
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an exhaust line that carries exhaust gas, a housing; a catalyst system contained in the housing; a bearing mat positioned between an inner wall of the housing and the catalyst system for axially fixing the catalyst system within the housing; an injection device arranged on the exhaust line and upstream from the catalyst system for spraying a liquid into the exhaust line; and a sump defined in the housing between the injection device and the catalyst system in the exhaust line, the sump having a collecting volume to receive condensation fluid, wherein, the surface of the housing in contact with the bearing mat is so adapted that condensation fluid formed on any location of the surface of the housing flows to said sump due to gravity.
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Specification