Flow Field Characteristics of Normally Open Fuel Solenoid Valve Under High and Low Temperature

doi:10.11832/j.issn.1000-4858.2024.05.002

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CHINESE HYDRAULICS & PNEUMATICS ›› 2024, Vol. 48 ›› Issue (5) : 9-15. DOI: 10.11832/j.issn.1000-4858.2024.05.002

Flow Field Characteristics of Normally Open Fuel Solenoid Valve Under High and Low Temperature

YANG Liu^1,3, HAN Yu², GAO Tian-xiong¹, DU Ran-heng¹, ZHANG Jin¹, LU Chang⁴

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Abstract

As a key control component of the common rail fuel injection system, research on the influence of temperature on the flow field characteristics of the solenoid valve, during the two working processes of opening and closing, is of great significance in material selection and structure optimization design of fuel valve. Firstly, the working principle of fuel solenoid valve is analyzed, and the thermal-solid coupling finite element simulation model is established by Workbench. Then, study on the deformation law of the fuel valve affected under high and low temperature, and variation law of hydraulic force on valve core during opening and closing process. Finally, the research on influence of temperature on flow-pressure difference characteristics of fuel valve at different openings, is carried out through Fluent flow field simulation software. The results show, temperature has little influence on valve port deformation; in the process of opening and closing two kinds of work, the hydraulic force on the spool is first increased and then decreased; under the same conditions, the pressure difference increase along with the fuel oil temperature decrease. The simulation analysis of the high and low temperature of the fuel solenoid valve has important practical significance in the initial design stage of the normally open fuel solenoid valve.

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normally open fuel solenoid valve / high and low temperature / hot deformation / flow-presssure characteristic / hydraulic force

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YANG Liu, HAN Yu, GAO Tian-xiong, DU Ran-heng, ZHANG Jin, LU Chang. Flow Field Characteristics of Normally Open Fuel Solenoid Valve Under High and Low Temperature[J]. CHINESE HYDRAULICS & PNEUMATICS. 2024, 48(5): 9-15. https://doi.org/10.11832/j.issn.1000-4858.2024.05.002

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Received	Revised	Published
2022-02-28	2023-06-30	2024-05-15
Issue Date
2024-05-21

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