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Optimal ovoid lobe shape by an automatic calculation program and CFD using dynamic mesh technique

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Abstract

The gerotor oil pump is advantageous for miniaturization as it can deliver a higher output per rotation compared to pumps of the same size and finds wide application in hydraulic systems such as engine lubrication and automatic transmission systems due to its low noise and superior suction performance. It was observed that increasing the chamber width leads to better pulsation and noise performance. High pressure pulsation is a significant factor in vibration and noise generation in oil pumps, particularly crucial for electric vehicles where quietness is emphasized. A previously developed profile was not used in electric vehicles due to this problem. To compensate for this problem, the characteristics of flow and noise according to the area of the chamber were found, and the rotor was designed and analyzed to minimize the pressure pulsation and noise level by applying this. The internal and external rotors were designed based on the ovoid parameter equations, incorporating rotation, translational motion, and expansion algorithms. The designed profile was applied to a GUI and an automatic performance factor calculation program in MATLAB to derive the optimal profile with the best performance. To test the performance of the developed profile, computational fluid dynamics (CFD) using the dynamic mesh technique and experiment was conducted. These design techniques can be used to create and test various gerotor profiles that meet various design requirements, and to develop a pump with improved performance, reduced noise, and improved efficiency while satisfying various design requirements and maintaining miniaturization and reliability.

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References

  1. Rituraj F, Vacca A (2019) Modelling and validation of tooth tip leakages in gerotor pumps. Fluids Engineering Division Summer Meeting, vol. Volume 1: Fluid Mechanics, pp. 001–01044. https://doi.org/10.1115/AJKFluids2019-5531

  2. Lee C, Jang H, Kwak H, Park G, Kim C (2021) Optimal design of gerotor profile with lemniscate lobe shape for noise reduction. Int J Precis Eng Manuf 22(9):1595–1608. https://doi.org/10.1007/s12541-021-00562-6

    Article  Google Scholar 

  3. Lee S, Kwak H, Han G, Kim C (2019) Design of gerotor oil pump with 2-expanded cardioids lobe shape for noise reduction. Energies 12(6):1126. https://doi.org/10.3390/en12061126

    Article  Google Scholar 

  4. Zhang, N, Li D, Gao B, Ni D, Li Z (2023) Unsteady pressure pulsations in pumps-a review. Energies. 16(1). https://doi.org/10.3390/en16010150

  5. Yoon Y, Park B-H, Shim J, Han Y-O, Hong B-J, Yun S-H (2017) Numerical simulation of three-dimensional external gear pump using immersed solid method. Appl Thermal Eng 118:539–550. https://doi.org/10.1016/j.applthermaleng.2017.03.014

    Article  Google Scholar 

  6. Gamez-Montero PJ, Castilla R, Codina E, Freire J, Morató, J, Sanchez-Casas E, Flotats I (2017) Geromag: in-house prototype of an innovative sealed, compact and non-shaft-driven gerotor pump with magnetically-driving outer rotor. Energies 10(4). https://doi.org/10.3390/en10040435

  7. Cao W, Liu Y, Dong J, Niu Z, Shi Y (2019) Research on pressure pulsation characteristics of gerotor pump for active vibration damping system. IEEE Access 7:116567–116577. https://doi.org/10.1109/ACCESS.2019.2936489

    Article  Google Scholar 

  8. Hsieh C-F, Hwang Y-W (2006) Geometric design for a gerotor pump with high area efficiency. J Mech Des 129(12):1269–1277. https://doi.org/10.1115/1.2779887

    Article  Google Scholar 

  9. Tessari F, Galluzzi R, Amati N (2019) Efficiency-driven design methodology of gerotor hydraulic units. J Mech Des 142(6):063501. https://doi.org/10.1115/1.4045421

    Article  Google Scholar 

  10. Karamooz Ravari FMRMHMR (2012) Flow irregularity and wear optimization in epitrochoidal gerotor pumps. Meccanica 47(4):917–928. https://doi.org/10.1007/s11012-011-9473-6

  11. Bonandrini G, Mimmi G, Rottenbacher C (2012) Design and simulation of meshing of a particular internal rotary pump. Mech Mach Theory 49:104–116. https://doi.org/10.1016/j.mechmachtheory.2011.11.001

    Article  Google Scholar 

  12. Sang X, Zhou X, Liu X (2015) Performance optimization of an oil ellipse gerotor pump for automotive engine. In: Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering, pp. 1686–1690. Atlantis Press

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Funding

This work was supported by Samhan Co., Ltd for funding and technical assistance, and this research was supported by Korea Basic Science Institute (National research Facilities and Equipment Center) grant funded by the Ministry of Education.(grant No. 2021R1A6C101A449).

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Authors and Affiliations

  1. School of Mechanical Engineering, Pusan National University, 2, Busandaehak-ro 63beon-gil, Geumjeong-gu, 46241, Busan, Republic of Korea

    Chanyoung Shin, Seungseok Lee & Chul Kim

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  1. Chanyoung Shin
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  2. Seungseok Lee
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  3. Chul Kim
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Contributions

Chanyoung Shin: investigation, formal analysis, conceptualization, methodology, validation, software, writing — original draft; Seungseok Lee: data curation, investigation; Chul Kim: supervision, funding acquisition, writing — review & editing.

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Correspondence to Chul Kim.

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Shin, C., Lee, S. & Kim, C. Optimal ovoid lobe shape by an automatic calculation program and CFD using dynamic mesh technique. Int J Adv Manuf Technol (2024). https://doi.org/10.1007/s00170-024-13665-x

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  • DOI: https://doi.org/10.1007/s00170-024-13665-x

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