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.

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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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