| 摘要 |
An apparatus for separating and converting exhaust particulates from a stream of exhaust gas, especially a diesel engine, into gaseous substances, in which the exhaust gas is guided through a honeycomb filter ( 6 ) made from a porous ceramic material whose axially extending channels ( 1, 2 ) are open merely at one face side of the filter and are closed off at the respective other face side, and a voltage is applied to electrodes ( 3, 4 ) extending parallel to the channels ( 1, 2 ) of the honeycomb filter ( 6 ). The closure of the channels ( 1, 2 ) at the face side is made in such a way that the channels ( 1, 2 ) each extending at the same normal distance from one of the electrodes ( 3, 4 ) are either all open or all closed off at their face side ( 9 ). The channels ( 1, 2 ) are mutually offset in a brickwork-like way. A sequence of voltage pulses is applied to the electrodes ( 3, 4 ) which produces electron emissions in the channels ( 1, 2 ), with pauses remaining between the individual pulses in which an electron emission is omitted.
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