초록 ▼

A cartridge for purifying exhaust gases from the internal combustion engine of an automotive vehicle or some other source comprising a catalyst support matrix wound of metal foil and a metal jacket housing said support matrix wherein a press fit exists between the exterior of the support matrix and

A cartridge for purifying exhaust gases from the internal combustion engine of an automotive vehicle or some other source comprising a catalyst support matrix wound of metal foil and a metal jacket housing said support matrix wherein a press fit exists between the exterior of the support matrix and the interior surface of the jacket and the support matrix and the jacket are welded or brazed together within the area of the press fit. Processes and apparatus for producing the cartridge of the invention are also disclosed.

대표청구항 ▼

Process for producing a cartridge for purifying exhaust gases comprising a catalyst support matrix of wound metal foil and a metal jacket housing said support matrix wherein a press fit is formed between the exterior of the support matrix and the interior of the jacket and the support matrix and jac

Process for producing a cartridge for purifying exhaust gases comprising a catalyst support matrix of wound metal foil and a metal jacket housing said support matrix wherein a press fit is formed between the exterior of the support matrix and the interior of the jacket and the support matrix and jacket are secured together in the area of the press fit, wherein the cross-sectional configuration of the cartridge is oval or elliptical in shape, comprising the steps of spirally winding the metal foil into a catalyst support matrix having a circularly cylindrical body; thereafter pressing the wound matrix between opposed tools provided with corresponding semi-elliptical dies to form the wound matrix to an oval or elliptical cross-sectional configuration; and inserting the wound matrix into the metal jacket housing.