Analysis of the results of experimental tests of hydraulic machines of various designs

Authors

DOI:

https://doi.org/10.20535/2521-1943.2025.9.1(104).317488

Keywords:

The newest designs of Innas hydraulic machines, features of piston groups, efficiency, friction losses and leaks, comparative technical characteristics

Abstract

Identification of the influence of the design features of axial and radial piston hydraulic machines on volumetric, hydrodynamic and mechanical power consumption based on the analysis of the results of tests of pumps and hydraulic motors published by the Innas company.
The object of the research is the characteristics and designs of volumetric pumps and hydraulic motors of the same working volume, which were obtained by the Innas company during comparative tests according to the ISO 4409 method.
The problem of providing design engineers and master's students with knowledge about the impact of design features of piston hydraulic machines on power loss and efficiency has been solved.
Based on the results of the analysis, an explanation of the obtained test results is given in relation to their connection with the design features of hydraulic machines. This is an attempt to assess the influence of temperature and force deformations of piston groups on leaks of the working fluid in Innas designs, known axial-piston hydraulic machines and hydraulic machines with ball-pistons.
It is shown that the types of piston groups and distribution nodes significantly affect the power loss and efficiency of hydraulic machines.
Due to the constructive and technological achievements of the Innas company, when creating new piston groups, it is possible to obtain small radial clearances between spherical pistons and thin-walled cylinders due to their deformation properties.
The obtained results are useful for developers of hydraulic machines, specialists in the creation of hydraulic drives and master's students.

References

  1. P. Achten, Improving pump control, INNAS. 10.IFK-Dresden, Germany, March 9, 2016.
  2. Performance of Hydrostatic Machines, Extensive Measurement Report, INNAS. Breda, June 8, 2020.
  3. A. Peter, E. Georges and K. Heybroek, “Efficient hydraulic pumps, motors and transformers for hydraulic hybrid systems in mobile machinery”, in VDI-Fachkonferenz Getriebe in Mobilen Arbeitsmaschinen, VDI-Wissensforum; 2011, pp. 1-19. [Online]. Available: https://www.diva-portal.org/smash/get/diva2:1051356/FULLTEXT02.pdf .
  4. Performance of Hydrostatic Machines. [Online]. Available: https://www.innas.com/assets/performance-of-hydrostatic-machines.pdf .
  5. G. Avrunin, D. Hlushkova, M. Podrigalo and A. Potoroka, “Analysis of the Newest Design of Axial Piston Hydraulic Machines with Reduced Friction Losses and Leaks”, Bulletin of Kharkov National Automobile and Highway University, No.106, pp. 50-59, 2024, doi: https://doi.org/10.30977/BUL.2219-5548.2024.106.0.50.
  6. G. Avrunin et al., Hidravlichne obladnannia budivelnykh ta dorozhnikh mashyn: pidruchnyk, G. A. Avrunin Ed., Kharkiv : KhNADU, 2016. 438 с.
  7. Fixed Displacement Motors SH11C. DANA. Brevine Motion Systems.
  8. KYB Hydraulics Products Guide. Hydraulic Component Catalog (Detailed version). Printed in Japan CAT No.30103 021709 MG.
  9. Moog RKP Radial Piston Pump. Modular Design for Superior Performance Ouiet and Robust. Star Publishing. Rev. K, November,Id. CDL29951-en. 2018. [Online]. Available: https://www.innas.com/assets/performance-of-hydrostatic-machines.pdf .
  10. Radial Piston Pump RKP-11, For Low-Flammability Fluids HFA, HFB, HFC, HFD. GUT/PDF/Rev.3/1, May 2010, Id. CDL28651-en. [Online]. Available: https://www.moog.com/literature/ICD/Moog-Pumps-RKP-II-SF-Catalog-en.pdf .
  11. Catalogo 20 ELIKA: Marzocchi Gear Pump. [Online]. Available: https://www.onehydraulics.com/products/ghp2a-s-25-s1 .
  12. ELICA by MARZOCCHI. Marzocchi Low-Noise and Low Ripples Pump. R01 07/2017. [Online]. Available: https://pdf.directindustry.com/pdf/marzocchi-pompe/elika-series-low-noise/14767-715652.html.
  13. EIPH2,EIPH3, EIPH6. Internal Gear Pumps. Eckerle Hydraulic Division. 0202010183/U&P/0110. [Online]. Available: https://vivoil.com.ua/shesterenchatie_nasosu/gidronasosy-eckerle/EIPH2_3_6_en.pdf.
  14. Axial piston fixed displacement pump A4FO. Bosch Rexroth Group. The Drive & Control Company RE91455, Edition: 03.2015, replaces: 04.2000. [Online]. Available: https://www.hydba.com/wp-content/uploads/pdfs/ficha_tecnica_bomba_de_pistones_axiales_caudal_fijo_A4FO_Bosch_Rexroth.pdf.
  15. Fixed Displacement Motor A4FM. Bosch Rexroth-Mobile Hydraulics. RE91 120/04/00, replaces: 03.95 and RE 91 100. [Online]. Available: https://www.kolben.it/fileadmin/Kolben/Bosch_Rexroth/A4FM_CILINDRATA_FISSA.pdf.
  16. Hidropryvody obiemni ta pnevmopryvody. Vol. 2. Obiemni hidromashyny ta pnevmomashyny. Terminy ta vyznachennia (DSTU 3455.2-96). Derzhavnyi standart Ukrainy. Vvedenyi 1998.01.01.
  17. V. Samorodov , G. Avrunin, “Solution of the problem of calculating the leakage working fluid in eccentric gap of the ball piston pair hydraulic fluid power machine”, Bulletin of National Technical University «KhPI». Series: Hydraulic machines and hydraulic units, No. 1, pp. 81–87, 2021.
  18. Hidropryvody obiemni ta pnevmopryvody. Chastyna 1. Zahalni poniattia. Terminy ta vyznachennia (DSTU 3455.1-96). Der-zhavnyi standart Ukrainy. Vvedenyi s 1998-01-0.
  19. G. Avrunin, M. Podrigalo, I. Moroz and O. Koval, “Analysis of the technical level of hydraulic fluid power with motor-wheels”, Mech. Adv. Technol., vol. 7, no. 2 (98), pp. 185–192, Sep. 2023, doi: https://doi.org/10.20535/2521-1943.2023.7.2.277557.

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Published

2025-03-18

How to Cite

[1]
G. Avrunin, I. Rybalko, M. Podrigalo, I. Moroz, and O. Koval, “Analysis of the results of experimental tests of hydraulic machines of various designs”, Mech. Adv. Technol., vol. 9, no. 1(104), pp. 83–95, Mar. 2025.

Issue

Vol. 9 No. 1(104) (2025)

Section

Mechanics

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Copyright (c) 2025 Олексій Дмитрович Коваль, Григорій Аврунін, Ірина Мороз, Ірина Рибалко

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