<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>Working liquid compressibility may considerably change the values and proportions of coefficients of volumetric and mechanical energy losses in the displacement pump used in a hydrostatic drive system. This effect can be particularly seen in the operation under high pressure and also in the system, where aeration of the working liquid can occur. In the Part I a diagram is presented, proposed by the author, of power increase in a hydrostatic drive system (hydraulic motor, pump) opposite to the direction of power flow, replacing the Sankey diagram of power decrease in the direction of power flow. Mathematical model is presented of volumetric losses in the pump and its laboratory verification.</p></abstract>

Working liquid compressibility may considerably change the values and proportions of coefficients of volumetric and mechanical energy losses in the displacement pump used in a hydrostatic drive system. This effect can be particularly seen in the operation under high pressure and also in the system, where aeration of the working liquid can occur. In the Part I a diagram is presented, proposed by the author, of power increase in a hydrostatic drive system (hydraulic motor, pump) opposite to the direction of power flow, replacing the Sankey diagram of power decrease in the direction of power flow. Mathematical model is presented of volumetric losses in the pump and its laboratory verification.

Effect of the working liquid compressibility on the picture of volumetric and mechanical losses in a high pressure displacement pump used in a hydrostatic drive

Polish Maritime Research

Working liquid compressibility may considerably change the values and proportions of coefficients of volumetric and mechanical energy losses in the...

Effect of the working liquid compressibility on the picture of volumetric and mechanical losses in a high pressure displacement pump used in a hydrostatic drive

Published Online: Jul 20, 2012

Page range: 3 - 10

DOI: https://doi.org/10.2478/v10012-012-0008-4

Keywords
hydrostatic drive system, pressure displacement pump, energy losses, energy efficiency, energy saving, liquid compressibility, Sankey diagram;

This content is open access.

Effect of the working liquid compressibility on the picture of volumetric and mechanical losses in a high pressure displacement pump used in a hydrostatic drive

Published Online: Jul 20, 2012

Page range: 3 - 10

DOI: https://doi.org/10.2478/v10012-012-0008-4

Keywordshydrostatic drive system, pressure displacement pump, energy losses, energy efficiency, energy saving, liquid compressibility, Sankey diagram;

This content is open access.

Keywords
hydrostatic drive system, pressure displacement pump, energy losses, energy efficiency, energy saving, liquid compressibility, Sankey diagram;