Patent · US Active

Method of manufacturing a cylindrical housing of an exhaust gas treatment unit and method of manufacturing an exhaust gas treatment unit for vehicles

US10625319B2 · kind B2 · utility

0Cited by

1References

17Claims

0Family size

Assignee

Faurecia Emissions Control Technologies, Germany GmbH · DE

Inventors

Roland Wolf · Hersbruck, DE
Georg Mosonyi · Maisach, DE
Philipp Hug · Gräfenberg, DE

Key dates

Filing date	Jan 29, 2015
Grant date	Apr 21, 2020
Priority date	—
Expiry date	Oct 2, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49398
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A method of manufacturing a cylindrical housing of an exhaust-gas treatment unit for vehicles includes providing a flat sheet metal part having at least one embossing, and round bending the sheet-metal part in a round bending tool by displacing the sheet metal part between rolls such that the sheet metal part obtains a cylindrical shape having a longitudinal direction parallel to roll axes of the rolls. At least one elastic roll is used such that the embossing of the sheet metal part is maintained during round bending. The longitudinal edges of the cylindrical sheet metal part are then connected to form a tube. A method of manufacturing an exhaust-gas treatment unit is furthermore shown.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.