串并联永磁对共轨高速电磁阀电磁力的影响

doi:10.19562/j.chinasae.qcgc.2021.08.003

Abstract

Abstract:

The performance of high?speed solenoid valve directly affects the characteristics of fuel injection system in high pressure common rail diesel engine. In order to reveal the hybrid excitation mechanism of series and parallel permanent magnet with electromagnetism for the novel high?speed solenoid valve， the effects of series and parallel permanent magnet on the electromagnetic force of the system are analyzed by numerical simulation. Firstly， the simulation model of novel high?speed solenoid valve is established by using ANSYS Maxwell software with its accuracy verified. Then， a simulation is conducted to analyze the effects of series and parallel permanent magnet rings and their interaction on the electromagnetic force of high?speed solenoid valve in full working condition. The results show that the electromagnetic force is positively correlated with the height of parallel permanent magnet ring， and is negatively correlated with the height of series permanent magnet ring. With the increase of driving current， the interaction between the height of series permanent magnet ring and the height of parallel permanent magnet ring gradually weakens.

Key words: high pressure common rail diesel engine, novel high?speed solenoid valve, electromagnetic force, series and parallel permanent magnet, interaction

Peng Liu,Jiafu Deng,Liyun Fan,Gang Wu,Lin Hu. Influences of Series and Parallel Permanent Magnet on Electromagnetic Force of Common Rail High⁃speed Solenoid Valve[J].Automotive Engineering, 2021, 43(8): 1136-1142.

Figures/Tables 16

References 10

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Influences of Series and Parallel Permanent Magnet on Electromagnetic Force of Common Rail High⁃speed Solenoid Valve

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