Electrostatic separating device for cleaning nano-particles from gas flow i.e. exhaust gas stream, for diesel engine of motor vehicle, has filter device arranged downstream behind collecting electrode for filtering clumped nano-particles

摘要

The device (1) has an electrostatic charging device (2) for electrostatically charging particles (5), where the charging device is subjected to high voltage. A filter device (6) is arranged downstream behind a collecting electrode (3) for filtering clumped nano-particles (4). The charging device is formed as a grid transverse to an air flow. The collecting electrode is formed as a heat exchanger or an evaporator. The filter device is formed for filtering the particles with a size larger than 1 micro meter.