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In this paper an analysis of the EGR valve design impact, in particular the outlet diameter, on the gasflow parameters in diesel engine (Z1505) exhaust gas recirculation system ofZetor tractor was made. For this purpose the experimental and simulation studies of gasflow through the valve were carried out. The simulations using Fluent were made. Also distribution of the pressure and velocity vectors in the area of the valve outflow was presented. Analysis of the phenomena occurring in the exhaust area of the EGR valve was made. Also influence of the outlet diameter on the flow characteristics of the EGR valve was determined.

Analysis of impact of EGR valve construction on the exhaust gas flow parameters in the engine