<abstract xmlns="http://www.w3.org/1999/xhtml">The article aims at defining and analysing the energy loss coefficients in design solutions of rotating displacement machines, with a piston machine as an example. The energy losses observed in these machines include mechanical loss, volumetric loss, and pressure loss. The scale and relations between these losses in different machines depend on machine design and manufacturing quality, and on operating parameters. The operating parameters, in turn, which affect directly or indirectly the above losses depend on whether the machine works in pump or hydraulic motor regime. The article is also a contribution to the development of a library of ki coefficients which define the losses in displacement machines, as the knowledge about these coefficients makes it possible to assess fast and easily the energy efficiency of a machine or drive system at each point of its working area.</abstract>

The article aims at defining and analysing the energy loss coefficients in design solutions of rotating displacement machines, with a piston machine as an example. The energy losses observed in these machines include mechanical loss, volumetric loss, and pressure loss. The scale and relations between these losses in different machines depend on machine design and manufacturing quality, and on operating parameters. The operating parameters, in turn, which affect directly or indirectly the above losses depend on whether the machine works in pump or hydraulic motor regime. The article is also a contribution to the development of a library of ki coefficients which define the losses in displacement machines, as the knowledge about these coefficients makes it possible to assess fast and easily the energy efficiency of a machine or drive system at each point of its working area.

Energy Loss Coefficients <italic>ki</italic> in a Displacement Pump and Hydraulic Motor used in Hydrostatic Drives

Polish Maritime Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Energy Loss Coefficients  in a Displacement Pump and Hydraulic Motor used in Hydrostatic Drives

The article aims at defining and analysing the energy loss coefficients in design solutions of rotating displacement machines, with a piston machine as an...

Energy Loss Coefficients k_i in a Displacement Pump and Hydraulic Motor used in Hydrostatic Drives

Publié en ligne: 18 oct. 2019

Pages: 47 - 55

DOI: https://doi.org/10.2478/pomr-2019-0045

Mots clés
hydrostatic drive, energy loss rate, pump, hydraulic motor, energy loss coefficients

© 2019 Agnieszka Maczyszyn, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Energy Loss Coefficients ki in a Displacement Pump and Hydraulic Motor used in Hydrostatic Drives

Publié en ligne: 18 oct. 2019

Pages: 47 - 55

DOI: https://doi.org/10.2478/pomr-2019-0045

Mots cléshydrostatic drive, energy loss rate, pump, hydraulic motor, energy loss coefficients

© 2019 Agnieszka Maczyszyn, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Energy Loss Coefficients k_i in a Displacement Pump and Hydraulic Motor used in Hydrostatic Drives

Mots clés
hydrostatic drive, energy loss rate, pump, hydraulic motor, energy loss coefficients