Journal of Drive and Control (드라이브 ㆍ 컨트롤)

The Korean Society for Fluid Power and Construction Equipment (유공압건설기계학회)
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New Tooth Type Design and Characteristic Analysis for High Density Gerotor Pump

고밀도 제로터 펌프용 신형 치형설계 및 특성해석

  • Jung, Heon-Sul (Department of Mechanical Engineering, Kunsan University) ;
  • Lim, Young Min (Department of Mechanical Engineering, Kunsan University) ;
  • Ham, Young-Bok (Energy Systems Research Division, Korea Institute of Machinery ＆)
  • Received : 2019.09.30
  • Accepted : 2019.11.21
  • Published : 2019.12.01
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Abstract

The gerotor type device is mainly used in low-speed, high-torque hydraulic motors, and is also applied as a small priming hydraulic pump. For this reason, many studies have been conducted to increase the efficiency of the gerotor pump. In this paper, we propose a new tooth profile design method different from the existing method. The new tooth design is made by modifying the tooth surface using the amplification function of the trajectories, created along the inner and outer rolling circles around the base circle. The shape of the mate rotor is then created using rotation simulation techniques. Such shapes are described as hypercloid. The designed hypercloid rotor is compared with the existing trochoid rotor, and the characteristics of the parameters and volumetric displacements are analyzed. Through this process, the optimum design with larger volumetric displacement than the existing rotor is achieved.

Keywords

References

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