HEATED CELLULAR SUBSTRATES

摘要

The invention relates to a method for controlling the conductance of heated structures used to initiate faster light-off in emission control systems such as used for automotive catalytic converters, diesel particulate filters and industrial stacks and other applications in which the exhaust gas stream temperature is too low to initiate fast light-off. The invention also relates to an exhaust gas apparatus useful for achieving early light-off of catalytic converters comprising a cellular substrate having a layer of conductive material formed thereon and means for activating the device by passing electric current or by exposing the device to an electromagnetic energy field.