The architecture of hydraulic drives for industrial, agricultural and mobile equipment with increased energy efficiency and functionality

Relevance . The article discusses the impact of hydraulic valves on the efficiency of the entire hydraulic drive system and the possibility of creating a hydraulic drive architecture based on two-line, two-position hydraulic valves (valves). It is noted that the current hydraulic drive architecture, built on the basis of spool multi—linear, multi-position valves, has large weight and size parameters, and most importantly, does not meet the requirements of energy efficiency. The authors see the solution to the problem of increasing the energy efficiency of a hydraulic drive in avoiding the use of complex, bulky, massive and energy-inefficient multi-line and multi-position valves and creating a hydraulic drive architecture based on two-line, two-position valves (valves 2/2). However, for such a transition, it is necessary to develop a new design of hydraulic valves that meets modern energy efficiency requirements. The purpose of the research is to substantiate the possibility of creating a hydraulic device architecture based on the simplest 2/2 valves. A task . Reduction of energy consumption and mass-dimensional parameters of hydrofected machines. Methods. The tasks were solved using the electrohydraulic analogy method, integrated into “Kompas3D” as an application of the FlowVision software package. The novelty lies in establishing the reasons for the high energy consumption of currently used hydraulic valves and the possibility of increasing the energy efficiency of hydraulic systems through the wider use of the simplest hydraulic elements valves (distributors 2/2). Results . The conducted studies confirm the possibility of increasing the energy efficiency of hydraulic systems and reducing the weight and size parameters of hydraulic machines.