Patent ID: 6857188
Filing Date: 2005-02-22
Classification: B01D,F01N,Y02T,Y10T

Abstract:
1. A process for producing a particle filter for motor vehicle exhaust from metal foil, which comprises the following steps: pulling the metal foil out of at least one endless storage device; applying a joining element to the metal foil; shaping the metal foil for producing subsequent channels; winding or stacking the metal foil to form first channels and second channels oriented in opposite directions; providing the first channel with an open entry cross section disposed at a first end side of the particle filter for motor vehicle exhaust and extending at least partway into the first channel; providing the first channel with a closure disposed opposite the entry cross section toward a second end side of the particle filter for motor vehicle exhaust; permanently joining contact surfaces of the channels bearing against one another, to create the particle filter for motor vehicle exhaust exclusively from metal foil; and perforating the metal foil before the step of pulling the metal foil out of the at least one endless storage device.