| 摘要 |
FIELD: engines and pumps.SUBSTANCE: invention relates to internal combustion engine exhaust gases cleaning. Liquid medium introduction device (1), for example, urea, into exhaust gases, comprises mixing chamber (2) intended for flow of exhaust gases, wherein mixing chamber (2) is restricted from outside in radial direction with tubular metal wall (6), and injector element (10) for liquid medium injection in form of aerosol (11) into mixing chamber (2), and channel (12) for exhaust gases passing along first tubular wall outer side. This channel (12) for exhaust gases is restricted from outside in radial direction with second tubular wall (13), which directs exhaust gases, flowing therein, so that they pass outside from first tubular wall section (6a), designed for this aerosol impacts. Exhaust gas flow through channel (12) in direction opposite to exhaust gas flow in mixing chamber (2). In exhaust gases channel section (12a), which is located outside of wall section (6a), there is exhaust gases acceleration throttle so, that they bypass this section (6a) from outside with increased speed.EFFECT: invention usage will allow to ensure good evaporation of injected chemical reducing agent.5 cl, 2 dwg |
