Process for manufacturing catalytic converters, especially bodies of motor vehicle catalytic converters of modular design
AssigneeJ. Eberspächer GmbH & Co. KG
InventorsGeorg Wirth, Siegfried Worner, Klaus Hoffmann
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Abstract
A process for preparing catalytic converters, especially bodies of motor vehicle catalytic converters of modular design, by pushing monoliths and a surrounding support jacket into prefabricated tubes, whose cross section essentially corresponds to the profile of the monolith plus an addition for the support jacket. The dimensions of the tube (housing) are adapted to a constant gap (s) from the monolith by sizing (calibrating) the prefabricated tubes which initially have a smaller cross section.
Claims20
A process for manufacturing catalytic converters, particularly motor vehicle catalytic converters of modular design, comprising the steps of:
- providing a monolith;
- determining dimensions of said monolith to provide a monolith of determined dimensions;
- providing prefabricated tubes having a cross section which is smaller than a cross-sectional dimension of said monolith plus a constant gap;
- sizing the prefabricated tubes by expanding an internal dimension of a tube to calibrate said tube to provide a calibrated tube with cross-sectional dimension equal to said monolith of determined dimensions plus and constant gap;
- subsequent to said step of sizing, pushing said monolith of determined dimensions and a surrounding support jacket into said calibrated tube.
A process for manufacturing catalytic converters, particularly motor vehicle catalytic converters of modular design, comprising the steps of:
- providing a monolith;
- determining dimensions of said monolith to provide a monolith of determined dimensions;
- providing a prefabricated tube having an internal dimension which is smaller than an outer dimension of said monolith plus a constant gap;
- sizing the prefabricated tube by expanding said internal dimension to calibrate the tube to provide a calibrated tube with a cross-sectional dimension equal to said monolith of determined dimensions plus said constant gap;
- pushing said monolith of determined dimensions and a surrounding support jacket into said calibrated tube, after said step of sizing.
Dependencies are inferred from the claim text.