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Hydrostatic drives as safe and energy saving machines The drive investigation method compatible with the diagram of power increase opposite to the direction of power flow

Abstract

Designers and manufacturers of hydrostatic drives have not a tool for precise determination of their energy efficiency, changing in a wide range in the driven device operating field, i.e. in the full range of the hydraulic motor speed and load and the working medium viscosity. This applies both to determining of losses and energy efficiency of displacement machines (pump and hydraulic motor) used in the drive system, and to losses and energy efficiency of the motor control system structure. A method is proposed compatible with the diagram of power increase opposite to the direction of power flow. That diagram replaces the Sankey diagram of power decrease in the direction of power flow.

Keywords:

hydrostatic drive and control, evaluation of energy losses, method of the energy efficiency investigation, search for the energy saving solutions

Details

Issue
Vol. 18 No. 1(68) (2011)
Section
Latest Articles
Published
21-04-2011
DOI:
https://doi.org/10.2478/v10012-011-0001-3
Licencja:
Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Open Access License

This journal provides immediate open access to its content under the Creative Commons BY 4.0 license. Authors who publish with this journal retain all copyrights and agree to the terms of the CC BY 4.0 license.

 

Author Biography

Zygmunt Paszota,
Gdansk University of Technology, Faculty of Ocean Engineering and Ship Technology



Authors

Zygmunt Paszota

Gdansk University of Technology, Faculty of Ocean Engineering and Ship Technology

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