Exhaust gas cleaning unit used in a vehicle engine comprises a catalytic device consisting of a support through which the exhaust gas passes, a catalytically active coating on the support, and a heating element

摘要

Exhaust gas cleaning unit comprises a catalytic device (1) consisting of a support through which the exhaust gas passes, a catalytically active coating on the support, and a heating element (3). Preferred Features: The support is made from a ceramic. The catalytic device has regions with a different number of heating elements. An additive material is embedded in the catalytic device for heating purposes. The additive material is a dielectric, magnetic and/or ohmic resistor and is made from a metal and/or ceramic. The support and/or coating is formed as an absorber of electrical and/or electromagnetic radiation.