Method of Manufacturing an Exhaust Gas Carrying Device and Tool Therefor
AssigneeFaurecia Emissions Control Technologies, Germany GmbH
InventorsStefan Keller, Stefan Meischkoetter, Otto Steinhauser, Manfred Stiglmaier
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Abstract
A method of manufacturing an exhaust gas carrying device, in particular an exhaust gas purification device, and a tool provided therefor include segment-like jaws that are used to deforma an outer housing. The jaws have indentations or projections adjacent to each other, and which are complementary to form a continuously surrounding indentation/projection. The reshaped outer housing is provided with one or more surrounding projections or indentations by the deformation.
Claims19
A method of manufacturing an exhaust gas carrying device, in particular an exhaust gas purification device, which has an outer housing with an insert clamped therein, comprising the following steps:
- (a) providing a tool having a plurality of jaws which are adapted to be moved inwards against the outer housing, and wherein the jaws extend axially beyond a length of the outer housing;
- (b) providing an indentation or a projection on an inside of each jaw, with indentations or projections of all jaws being oriented in relation to each other such that a continuously surrounding indentation or a continuously surrounding projection is obtained;
- (c) placing the outer housing and the insert positioned therein into the tool;
- (d) deforming the outer housing by closing the jaws to clamp the insert in the outer housing;
- and
- (e) producing a surrounding projection or a surrounding indentation on the outer housing remote from ends of the outer housing when closing the jaws.
A tool for manufacturing an exhaust gas carrying device comprising:
- a plurality of movable jaws having inner faces of which, in a closed condition, have an inner contour corresponding to an outer contour to be attained of an outer housing, the jaws having on the inner faces thereof a plurality of indentations or projections, the indentations or projections circumferentially adjoining the indentations/projections of adjacent jaws to produce a plurality of continuously surrounding indentations or projections that are axially spaced apart from each other along a length of the outer housing.
A method of manufacturing an exhaust gas carrying device, in particular an exhaust gas purification device, which has an outer housing with an insert clamped therein, comprising the following steps:
- (a) providing a tool having a plurality of jaws that are circumferentially spaced apart from each other and which are adapted to be moved radially inwards against the outer housing;
- (b) providing a plurality of indentations on an inside of each jaw, with indentations of circumferentially adjacent jaws being oriented in relation to each other such that a continuously surrounding indentation is obtained, and with the indentations of each jaw being axially spaced apart from each other;
- (c) placing the outer housing and the insert positioned therein into the tool;
- (d) deforming the outer housing by closing the jaws to clamp the insert in the outer housing;
- and
- (e) producing a plurality of continuously surrounding projections on the outer housing remote from ends of the outer housing when closing the jaws, the continuously surrounding projections being axially spaced apart from each other along a length of the outer housing.
Dependencies are inferred from the claim text.