he valve core is readily subjected to a large lateral force which affects the dynamic response speed. Here, a new type of cartridge valve core structure is proposed to solve this problem. The numerical simulation method is applied to analyze the flow characteristics of clearance flow field on velocity distribution, pressure distribution, valve core motion speed, and leakage. The results using computational fluid dynamics (CFD) show that the guide groove is set on the surface of the cartridge valve core, increasing the connecting length of the valve core, forming a uniform radial pressure distribution and velocity distribution, effectively reducing the lateral force, and at the same time ensuring that the leak is not too big. These findings provide theoretical guidance and a basis for optimizing cartridge valve to reduce the occurrence of jamming and improve the response frequency.
HAN Heyong1(韩贺永),ZHANG Jianru1(张建茹), PAN Siji1(潘思意)，LI Yugui2*(李玉贵)，MA Lifeng1(马立峰),LIU Shirui3(刘实睿)
. Lateral Force Characteristics of Cartridge Valve Core[J]. Journal of Shanghai Jiaotong University(Science), 2023
, 28(5)
: 604
-610
.
DOI: 10.1007/s12204-021-2402-5
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