Research on the factors that affect the throttling mouth flow coefficient of spool valve

Author

Jin, Zhang ; Xiangdong, Kong ; Yongfeng, Zhang ; Chao, Ai ; Na, Hu

Author_Institution

Mech. Eng. Coll., Yanshan Univ., Qinhuangdao, China

fYear

2011

fDate

17-20 Aug. 2011

Firstpage

440

Lastpage

443

Abstract

This paper establishes the CFD (Computational Fluid Dynamics)model of the Servo valve, and computes the velocity field of internal flow field in the spool valve of the servo valve under the different work pressures, different work temperatures and different opening lengths. By analyzing the flow coefficient of the orifice of the servo spool valve at the different work conditions, we further research the influence rule of the opening of the orifice, the flow direction, the valve ports shape, the valve inlet pressure, and oil temperature on the flow coefficient.

Keywords

computational fluid dynamics; confined flow; orifices (mechanical); servomechanisms; valves; CFD model; computational fluid dynamics model; flow coefficient oil temperature; flow direction; flow velocity; internal flow field; orifices; servo spool valves; throttling mouth flow coefficient; valve inlet pressure; valve ports shape; Cavity resonators; Computational fluid dynamics; Mouth; Orifices; Servomotors; Valves; Viscosity; Flow coefficient; Flow field analysis; Spool valve;

fLanguage

English

Publisher

ieee

Conference_Titel

Fluid Power and Mechatronics (FPM), 2011 International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-8451-5

Type

conf

DOI

10.1109/FPM.2011.6045805

Filename

6045805