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Design and experimental verification of a port plate in a gerotor pump to reduce pressure pulsation

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Abstract

In a gerotor pump, pressure pulsation occurs in a chamber through contact with the internal and external rotors. This causes an overhung load on the pump shaft bearing and cavitation, which affect the durability and noise of the pump. In this study, relief grooves on the port plate were designed to reduce pressure pulsation and verified experimentally. The opening areas between the port plate and chamber with and without relief grooves were obtained. The relation between the pressure pulsation and relief grooves was examined through a simulation and verified experimentally. The results indicated that the relief grooves were very effective at reducing and stabilizing the pressure pulsation of the pump outlet and in the chamber. Thus, installing relief grooves on the port plate can improve the durability of the pump and allow the size of the motor coupled with the pump to be reduced.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Pusan National University, Pusan, 609-735, Korea

    Hee-Jee Sung, Hyung-Ki Min & Myung-Kwan Park

  2. Construction Equipment Technology Center, Korea Institute of Industrial Technology, Cheonan, 331-822, Korea

    Yun-Joo Nam

Authors
  1. Hee-Jee Sung
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  2. Hyung-Ki Min
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  3. Yun-Joo Nam
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  4. Myung-Kwan Park
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Corresponding author

Correspondence to Myung-Kwan Park.

Additional information

Recommended by Associate Editor Weon Gyu Shin

Hee-Jee Sung received a B.S. in Mechanical Engineering from Pusan National University, Korea, in 2013. His research interests are in hydraulic components design, hydraulic control systems, and smart fluids such as magnetorheological, electrorheological and magnetic fluids.

Myeong-Kwan Park received M.S. and Ph.D. degrees in Mechanical Engineering from the Tokyo Institute of Technology, Tokyo, Japan, in 1988 and 1991, respectively. He is currently a Full Professor with the Department of Mechanical Engineering and a Researcher at the Research Institute of Mechanical Technology at Pusan National University. His research interests are in hydraulic systems and smart fluids such as magnetic, ER and MR fluids.

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Sung, HJ., Min, HK., Nam, YJ. et al. Design and experimental verification of a port plate in a gerotor pump to reduce pressure pulsation. J Mech Sci Technol 32, 671–678 (2018). https://doi.org/10.1007/s12206-018-0114-4

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  • DOI: https://doi.org/10.1007/s12206-018-0114-4

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