Nghiên cứu đánh giá ảnh hưởng của các thông số kết cấu đến chất lượng phun nhiên liệu trên động cơ Diesel Kubota D1703-M-DI

Abstract

Based on theoretical research of the fuel supply process, mixture formation process in Diesel engines, the theoretical basis of calculation in Hydsim software, combined with the process of surveying, measuring, and analyzing structural characteristics of the fuel supply system on the Kubota D1703-M-DI Diesel engine, the authors have applied Hydsim software to simulate the fuel supply process of the Kubota D1703-M-DI Diesel engine under simulated conditions at rated load, average load and no load and with changes in the values of structural parameters: cam profile, D/h_i ratio, nozzle diameter, nozzle length, nozzle spring stiffness spray, etc. Based on the simulation results obtained, the authors analyzed and evaluated the results and made relevant conclusions about the influence of structural parameters on the quality of fuel injection in the Kubota D1703-M-DI Diesel engine, thereby providing suggestions for more suitable structural parameters. This is important in reducing fuel consumption, noise, and the content of pollutants in engine exhaust.