FIELD: mechanical engineering; diesel engines. SUBSTANCE: proposed method includes cleaning of exhaust gases of diesel engines from gaseous harmful substances (CO and CxHy) and solid particles by passing flow of exhaust gases through intake catalytic oxidizing converter and then through filtering element using periodical forced regeneration of filtering element which is cut in when filtering element is filled with solid particles. For this purpose temperature and pressure differential across filtering element are measured by which moment of filtering element filling is evaluated. Regeneration of filtering element is carried out by heating with exhaust gases owing to combustion of additional fuel in combustion chamber installed before intake oxidizing converter. Temperature of filtering element in process of regeneration is maintained close to preset minimum tolerable temperature by regulating flow rate of additional fuel. Regeneration of filtering element is stopped when measured pressure differential across element becomes lower than minimum tolerable pressure differential. To exclude discharge of CO formed in filtering element in process of regeneration into atmosphere, additional outlet catalytic oxidizing converter is installed after filtering element. Constant regeneration of intake and outlet oxidizing converters is provided by maintaining their temperatures not lower than preset working temperature of converter, or using energy of flow at heavy loads or by combustion of additional fuel in installed combustion chamber. To monitor the process, temperature of exhaust gas flow combustion chamber and temperatures of bodies of intake and outlet oxidizing converters are measured. Secondary gas containing oxygen is introduced into zone of burning of combustion chamber at heavy loads to enlarge range of diesel engine operating modes at which regeneration of filtering element is possible. For this purpose volume concentration of oxygen in exhaust gases before combustion chamber is measured and secondary gas is introduced when said measured concentration becomes less than minimum tolerable concentration of oxygen. Preset maximum and minimum tolerable pressure differentials across filtering element with due account of mode of diesel engine operation should be corrected. Moreover, number of designs versions are offered aimed at reducing pressure differential in cleaning system and increasing economy of regeneration process of filtering element and oxidizing converters. EFFECT: increased efficiency of exhaust gas cleaning, enlarged range of operation of diesel engine plants within the limits of which high efficiency of cleaning of cleaning of exhaust gases is provided. 7 cl, 2 dwg
