Journal of Drive and Control (드라이브 ㆍ 컨트롤)

The Korean Society for Fluid Power and Construction Equipment (유공압건설기계학회)
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Effect of Spool-Sleeve Geometry on Static Pressure Characteristics of Servo Valves

서보밸브 스풀-슬리브 형상공차가 압력 정특성에 미치는 영향 연구

  • Kim, Sung Dong (Department of Mechanical System Engineering, Kumoh National Institute of Technology) ;
  • Son, Sung Hoe (Department of Mechanical System Engineering, Kumoh National Institute of Technology) ;
  • Ham, Young Bog (Extreme Energy Machinery lab, Korea Institute of Machinery & Materials Industrial Machinery)
  • Received : 2016.01.27
  • Accepted : 2016.02.23
  • Published : 2016.03.01
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Abstract

This study studied how the clearance, overlap and mismatch errors of spool-sleeve affect the static pressure characteristics of a servo valve. A computer simulation model was established as a direct acting servo valve and a series of simulations was conducted for various values of clearance, overlap and mismatch errors. Pressure gain decreased as the clearance increased. The overlap also affects the pressure gain and was similar to the effect of clearance. Asymmetry of the pressure plot got worse and worse as the mismatch error increased.

Keywords

Acknowledgement

Supported by : 금오공과대학교

References

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