Energy-saving structures of hydrostatic drives for ship deck machines

Abstract

This paper presents a comparison of the energy behaviour of two widespread structures (of Load Sensing and Adaptive Secondary Control) of the central feeding systems of hydraulic motors in the case of supplying oil to one motor. The research was made possible due to elaboration of the computer simulation method of energy efficiency of hydrostatic transmissions. Both system solutions are shortly described together with presentation of equations of the total efficiency q of the system, graphs of changes of the speed coefficient ὦ_M and charge coefficient M_M of the motor. Finally, results and analyses of computer simulations of efficiency of the systems are also described.