Modeling and Evaluation of Efficiency of the Dust Ejection Suction by Exhaust Gases in the Agricultural Harvester Damper

A methodology and solid-state modeling results of the dust ejection suction process from the engine air inlet with exhaust gases by means of ejector, installed in the self-moving agricultural harvester damper, are given. The results of modeling are compared with the results of experimental researches; conclusions about gained data divergence reasons in some investigated parameters ranges are drawn. Investigated values dependences on changeable parameters are gained. Optimal ejector geometrics providing effective dust suction without engine work conditions deterioration are selected. Recommendations for ejection suction systems engineering are produced at self-moving agricultural harvesters’ development which is successfully used at OJSC “Gomselmash”.