Motor-vehicle exhaust-gas cleaning device and method for making same
First Claim
1. A method for making a motor-vehicle exhaust-gas cleaning device, which device comprises a substantially cylindrical sleeve housing (G), internals comprising at least one exhaust-gas cleaning element (1) bedded in said housing together with an interposed bedding mat (2), and two transition cones (4) joined together with the housing at the ends thereof, comprising the steps of:
- wrapping a cut-to-size metal sheet (7) around said internals, andbracing said cut-to-size metal sheet for firm contact with the internals (1, 2,
3), and in this position sealing to form said sleeve housing,wherein during bracing of the cut-to-size metal sheet (7) and sealing thereof to form the sleeve housing, positioning said two transition cones (4) in such a way that said two transition cones protrude into the housing (G) with support regions (6;
12) respectively facing the housing and acting as stops limiting the bracing of the cut-to-size metal sheet for firm contact with the internals.
4 Assignments
0 Petitions
Accused Products
Abstract
For the production of a motor vehicle exhaust gas cleaning device, which comprises an essentially cylindrical housing (G), at least one exhaust gas cleaning element (1) mounted in it, with a mounting mat (2) in between, and two transition cones (4) joined with the housing at the ends, a sheet metal cut-out (7) is placed around the at least one exhaust gas cleaning element (1) as a mantle, to form the housing, braced to the built-in parts (1 2, 3) to provide a firm attachment, and, in this position, closed to form a sleeve, while the two transition cones (4) are positioned in such a way, as the mantle formed from the sheet metal cut-out (7) is braced and formed into a sleeve, that they project into the housing (G) with support regions (6) which face the housing in each instance, and act as stops to delimit, the bracing process.
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Citations
12 Claims
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1. A method for making a motor-vehicle exhaust-gas cleaning device, which device comprises a substantially cylindrical sleeve housing (G), internals comprising at least one exhaust-gas cleaning element (1) bedded in said housing together with an interposed bedding mat (2), and two transition cones (4) joined together with the housing at the ends thereof, comprising the steps of:
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wrapping a cut-to-size metal sheet (7) around said internals, and bracing said cut-to-size metal sheet for firm contact with the internals (1, 2,
3), and in this position sealing to form said sleeve housing,wherein during bracing of the cut-to-size metal sheet (7) and sealing thereof to form the sleeve housing, positioning said two transition cones (4) in such a way that said two transition cones protrude into the housing (G) with support regions (6;
12) respectively facing the housing and acting as stops limiting the bracing of the cut-to-size metal sheet for firm contact with the internals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification