Influence of Shapes of Sleeves on Steady Axial Flow Forces of Spool Valve.

DOI
  • TIAN Qi
    Dector's degree Program for Production system Engineering of Graduate school of Mining and Engineering, Akita University
  • SASAKI Yoshihiro
    Department of Mechanical Engineering, Mining College, Akita University
  • TAKAHASHI Yoshio
    Department of Mechanical Engineering, Mining College, Akita University

Bibliographic Information

Other Title
  • 定常流体軸力におよぼすスプール弁スリーブ流入出部形状の影響

Description

In recent years, oil hydraulic spool valves have been widely used in electricmechanical control systems. However, the steady axial flow forces in the oil hydraulic spool valves are produced by the internal oil flow, and control of oil hydraulic spool valves becomes difficult owing to the effect of the steady axial flow forces.<BR>In this paper, whole domain of fluid inside a spool valve is simulated by the boundary element method.Shapes of sleeves are modified, and steady axial flow forces, flow patterns and boundary pressure distribution are calculated and compared. It is found that when a sleeve takes a shape shown in Fig.6, the steady axial flow forces applied on the spool are greatly decreased, and the angle θn of injection fluid at jet orifice also increases due to coanda effect of the flow.

Journal

Keywords

Details 詳細情報について

  • CRID
    1390001204343926656
  • NII Article ID
    130004004030
  • DOI
    10.5188/jsmerj.9.2_64
  • ISSN
    18846610
    09199853
  • Text Lang
    ja
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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