DEVICE FOR CONTROLLING INTERNAL COMBUSTION ENGINE AND METHOD FOR PURIFYING EXHAUST GAS

摘要

To inhibit the discharge of nano-particles generated in an internal combustion engine to the atmosphere. Fine particles having particle diameters larger than those of nano-particles are produced in a cylinder of the internal combustion engine or in a discharge system and nano-particles generated in the internal combustion engine are adsorbed onto the fine particles, to thereby form particles having a larger diameter. The fine particles may be produced in the cylinder, for example, as soot, or may be produced by a device for producing fine carbon particles provided in the discharge system. The discharge of nano-particles may be inhibited by adsorbing nano-particles onto fine particles so as to form the particles having larger diameter.