Translated Title
Internal Flow Field Analysis of a New Rotary Reversing Valve
Translated Abstract
In order to address the problems of the traditional servo valve like the complex structure, the expensive cost, and the low upper frequency, a new rotary high speed four-way reversing valve with dual-spool and two degrees of freedom is designed. The flow characteris-tics of this valve are studied by Computational Fluid Dynamics. In addition, based on the rotation angle, the characteristics of the pressure and velocity distribution under static and dynamic condition is analyzed, and the analysis results under static condition is compared to the re-sults under dynamic condition. The research results prove that the pressure loss of the rotary valve are concentrated in the contact parts be-tween axial channel of the left spool and axial channel of the intermediate shaft. Meanwhile, as the angle increases, the pressure loss of the contact parts and the low pressure regions are reduced gradually. What is more, as the angle increases, the velocity of the contact parts is changed slightly and the average velocity is increased.
Translated Keyword
CFD
flow field
pressure
rotary reversing valve
Access Number
WF:perioarticalyyqdymf201609007
