Kozlov L. Improvemenst in control systems of LS-Hydraulic drives

The object of research - Load-Sensing (LS) hydraulic drives; the aim of research - development of improved hydraulic systems characterized by reduced hydraulic losses, smaller size and providing the required static and dynamic characteristics for LS hydraulic drives; research methods and equipment - analytical and experimental, personal computer, measuring devices and pickups; theoretical and practical results - new control system circuits are designed, size of the directional control valve is reduced, mathematical models and program are developed in order to investigate processes occurring in hydraulic drives, possibility of hydraulic losses reduction has been found and required static and dynamic characteristics provided, optimization of hydraulic units design is provided and on their basis excavator hydraulic system has been developed; introduction novelty - is confirmed by the Authors Certificate for the invention; implementation range - within the given branch; implementation area - agricultural , construction and road machines.