COMPARATIVE ANALYSIS OF POWER LOSSES IN THE SINGLE-FLOW LS-SYSTEMS WITH PUMP AND VALVE CONFIGURATION

HINZBURH Aleksander A., Chief Designer, OJSC “Gomel Special Design and Technical Bureau Of Hydro-Pneumatic Automation”, Gomel, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

STASENKO Dmitriy L., Ph. D. in Eng., Assoc. Prof., Head of the Department, Pavel Sukhoi State Technical University of Gomel, Gomel, Republic of Belarus

The power losses in the single-flow hydraulic LS-systems with a pump configuration (using the variable displacement LS-pump) and with a valve configuration (using the fixed displacement pump) are investigated. Hydraulic systems with a pump configuration concede to the hydraulic systems with a valve configuration on the cost and reliability, but it is believed that the power losses in them are smaller. The paper found that while using modern hydraulic equipment there are conditions in which LS-systems with a valve configuration are preferred for energy efficiency. A method is proposed for determining these conditions depending on the level of hydraulic pressure and total flow consumed by actuators. The conclusions for various hydraulic systems which are applicable in practice are obtained.

hydraulic systems, load sensing, LS-systems, power loss, energy efficiency

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