Honeycomb body with an at least partially ceramic honeycomb structure and a receptacle for a measurement sensor, and process for producing such a honeycomb body
First Claim
1. A honeycomb body, comprising:
- a tubular casing;
an at least partially ceramic honeycomb structure through which a fluid can flow, said honeycomb structure being disposed in said tubular casing and said honeycomb structure having cavities;
at least two axial subregions disposed along a longitudinal direction of the honeycomb body, said at least two axial subregions including at least one axial securing region, and at least one axial measurement sensor region;
said honeycomb structure being connected to said tubular casing in said at least one axial securing region; and
said at least one axial measurement sensor region having a recess formed therein for accommodating at least one measurement sensor in said honeycomb structure.
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Accused Products
Abstract
A honeycomb body, in particular for use in the exhaust system of a motor vehicle, includes an at least partially ceramic honeycomb structure through which a fluid can flow. The honeycomb structure is disposed in a tubular casing and has cavities. The honeycomb body has at least two axial subregions in a longitudinal direction. The honeycomb structure is connected to the tubular casing in an axial securing region and an axial measurement sensor region has a recess for accommodating a measurement sensor in the honeycomb structure. The honeycomb body has a permanent connection between the tubular casing and the ceramic honeycomb structure due to its preferably force-locking and/or form-locking connection between the tubular casing and the honeycomb structure in the securing region. Despite the recess, further damage to the honeycomb structure in the measurement sensor region is avoided. A process for producing such a honeycomb body is also provided.
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Citations
21 Claims
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1. A honeycomb body, comprising:
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a tubular casing;
an at least partially ceramic honeycomb structure through which a fluid can flow, said honeycomb structure being disposed in said tubular casing and said honeycomb structure having cavities;
at least two axial subregions disposed along a longitudinal direction of the honeycomb body, said at least two axial subregions including at least one axial securing region, and at least one axial measurement sensor region;
said honeycomb structure being connected to said tubular casing in said at least one axial securing region; and
said at least one axial measurement sensor region having a recess formed therein for accommodating at least one measurement sensor in said honeycomb structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A honeycomb body for an exhaust system of a motor vehicle, the honeycomb body comprising:
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a tubular casing;
an at least partially ceramic honeycomb structure through which exhaust gas can flow, said honeycomb structure being disposed in said tubular casing and said honeycomb structure having cavities;
at least two axial subregions disposed along a longitudinal direction of the honeycomb body, said at least two axial subregions including at least one axial securing region, and at least one axial measurement sensor region;
said honeycomb structure being connected to said tubular casing in said at least one axial securing region; and
said at least one axial measurement sensor region having a recess formed therein for accommodating at least one exhaust gas measurement sensor in said honeycomb structure.
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16. A process for producing a honeycomb body, the process comprising the following steps:
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a) providing an at least partially ceramic honeycomb structure through which a fluid can flow and which has at least one recess formed therein for accommodating a measurement sensor;
b) providing a tubular casing having at least one hole formed therein for the measurement sensor to pass through;
c) introducing the honeycomb structure into the tubular casing and joining the honeycomb structure to the tubular casing in at least one axial securing region; and
d) before or during step c), mutually aligning the honeycomb structure and the tubular casing, causing the hole in the tubular casing and the recess in the honeycomb structure to at least partially overlap one another after step c). - View Dependent Claims (17, 18, 19, 20, 21)
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Specification