Effect of valve plate silencing grooves on flow and pressure fluctuation in fixed displacement radial piston pump

Kumar, Lokesh; Mandal, Nimai Pada

doi:10.22061/jcarme.2023.8697.2169

Document Type : Research Paper

Authors

Department of Mechanical Engineering, National Institute of Technology Patna, Patna, Bihar, 800005, India

https://doi.org/10.22061/jcarme.2023.8697.2169

Abstract

This study focuses on the flow and pressure fluctuations of a fixed displacement radial piston pump with a valve plate with silencing grooves, and the effect of the number of pistons (5, 6, and 7) is investigated. Over the manifolds of the pump, valve plate silencing grooves are regarded as Top Dead Center and Bottom Dead Center. The mathematical modeling is run in MATLAB Simulink. Analyzing the flow characteristics and volumetric efficiency of the pump with and without silencing groove valve plate configuration of the pump is done. The opening and closing area pattern of the kidney port is also analyzed. The percentage reduction of flow and pressure fluctuation with the silencing groove is 19% and 16.16%, respectively, for Z = 7, as compared to the model without silencing groove valve plate. The volumetric efficiency of the model with silencing groove valve plate is improved from 1% to 2% as compared to the model without silencing groove valve plate. The lower the flow and pressure fluctuation coefficients, the higher the flow rate and volumetric efficiency of the pump for the model with silencing groove valve plate.

Graphical Abstract

Keywords

20.1001.1.22287922.2023.13.1.5.1

Main Subjects

Hydraulic and Pneumatic Systems

References

[1] J. Yuehu, “New type of radial piston pump”, National defence Ind. Press, Beijing., pp. 6–8, (2012).

[2] J. Ivantysyn and M. Ivantysynova, Hydrostatic Pumps and Motors Principles, Designs, Performance, Modelling, Analysis, Control and Testing; 1^st ed, Akad. Books Internat., New Delhi, pp.185-203, (2000).

[3] M. Cai and M. J. Tian, “Design of a shaft assignment radial piston pump”, Adv. Mater. Res., Vol. 510, pp. 9-12, (2012).

[4] S. N. Li, L. J. Wei, X. P. Wei and J. H. Yang, “Change in Oil Pressure in Piston Chamber of a Radial Piston Pump Pre-Compression Area When Considering the Compressibility of Oil”, Int. J. Fluid Mach. Syst., Vol. 13, No. 1, pp. 463-475, (2020).

[5] T. Guo, S. Zhao and C. Liu, “Study on flow characteristics and flow ripple reduction schemes of spool valves distributed radial piston pump”, Proc. Inst. Mech. Eng., Part C: J. Mech. Eng. Sci., Vol. 231, No. 12, pp. 2291-2301, (2017).

[6] S. Zhao, T. Guo, Y. Yu, P. Dong, C. Liu and W. Chen, “Design and experimental studies of a novel double-row radial piston pump”, Proc. Inst. Mech. Eng., Part C: J. Mech. Eng. Sci, Vol. 231, No. 10, pp. 1884-1896, (2017).

[7] G. Tong, Z. Shengdun, Y. Yanghuiwen and S. Peng, “Design and theoretical analysis of a sliding valve distribution radial piston pump”, J. Mech. Sci. Technol., Vol. 30, No. 1, pp. 327-335, (2016).

[8] Moog Radial Piston Pumps RKP Catalog, Online referencing, (2018).

[9] N. P. Mandal, R. Saha and D. Sanyal, “Theoretical simulation of ripples for different leading-side groove volumes on manifolds in fixed-displacement axial-piston pump”, Proc. Inst. Mech. Eng., Part I: J. Syst. Control Eng., Vol. 222, No. 6, pp. 557-570, (2008).

[10] N. P. Mandal, R. Saha and D. Sanyal, “Effects of flow inertia modelling and valve-plate geometry on swash-plate axial-piston pump performance”, Proc. Inst. Mech. Eng., Part I: J. Syst. Control Eng., Vol. 226, No. 4, pp. 451-465, (2011).

[11] J. Cho, X. Zhang, N. D. Manring and S. S. Nair, “Dynamic Modelling and Parametric Studies of An Indexing Valve Plate Pump”, Int. J. Fluid Power, Vol. 3, No. 3, pp. 37-48, (2002).

[12] G. K. Seeniraj, M. Zhao and M. Ivantysynova, “Effect of Combining Precompression Grooves, PCFV and DCFV on Pump Noise Generation”, Int. J. Fluid Power, Vol. 12, No. 3, pp. 53-63, (2011).

[13] W. Jiang, X. G. Qiu, G. Z. Chai and J. X. Zhou, “Research of the Pressure Pulsation within Piston Chamber in Radial Piston Pump”, Adv. Mater. Res., Vol. 69-70, pp. 626-630, (2009).

[14] J. Huang, Z. Yan, L. Quan, Y. Lan and Y. Gao, “Characteristics of delivery pressure in the axial piston pump with combination of variable displacement and variable speed”, Proc. Inst. Mech. Eng., Part I: J. Syst. Control Eng., Vol. 229, No. 7, pp. 599-613, (2015).