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SIMULATION METHOD FOR TWO-STAGE PLUNGER PRESSURIZED COMMON RAIL FUEL SYSTEM OF MARINE LOW-SPEED ENGINE
SIMULATION METHOD FOR TWO-STAGE PLUNGER PRESSURIZED COMMON RAIL FUEL SYSTEM OF MARINE LOW-SPEED ENGINE
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机译:船舶低速发动机两级柱塞加压共轨燃料系统仿真方法
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摘要
An objective of the disclosure is to provide a simulation method for a two-stage plunger pressurized common rail fuel system of a marine low-speed engine. The method includes: first setting initial status parameters, such as a control step of a system model, a total time of a calculation process, and structure parameters and pressures of components; and then establishing a mathematical model of a fuel booster unit, a mathematical model of a high-pressure fuel pipe and a mathematical model of a fuel injector based on a MATLAB simulation platform, and connecting input and output parameters of the models to realize data transfer between the models. By considering one-dimensional (1D) spatial fluctuations in the high-pressure fuel pipe, the disclosure establishes a high-precision model of the fuel system, which provides an effective method for designing and calculating detailed pressures in the common rail fuel system.
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