Abstract
Hydraulic digital power consists in a hydraulic plant having one or more discreet valued components actively with which we are controlling the system output flow. In this paper authors study a solution of 4 fixed pumps parallel connected. This complex pumping system can achieve 15 flows. The pumping system consists in an electrical single speed motor, 4 fixed pumps, the repartition will achieve with the help of 4 electrohydraulic distributors and an electronic micro-controller. The hydraulic plant was made in our Research Institute in the digital hydraulic laboratory for conducting tests and experiments.
Highlights
The evolution of technology was one of the biggest developments for human society, and within it a very important role it has played by the development of mechanical, electrical, hydraulic and pneumatic drives
The great advantage of this solution is that besides economical use of power the system allows simple automation, flow accuracy up to 12.5% and functional structure quite simple and inexpensive. This material refers to the hydraulic systems with 4 fixed displacement pumps, and it highlights certain aspects such as the variable flow pumps equipped with various regulators have high energy efficiency because flow and pressure automatically adapt to customer needs
Reducing energy losses which cause overheating of hydraulic oil leads to simplification of hydraulic system by:
Summary
The evolution of technology was one of the biggest developments for human society, and within it a very important role it has played by the development of mechanical, electrical, hydraulic and pneumatic drives. Further will be analyzed how the hydraulic drive past from movements required in order to achieve the role of agricultural machinery to technical means of making movements with energy losses as low as possible. This shift towards energy saving was made in time, in several stages, each stage being represented by a specific technology. Digital hydraulics means hydraulics or pneumatics systems which have in their structure at least one hydraulic raulic element to ensure at the exit discrete values and active control This thing involves beside the digital hydraulic elements a proper electronic command, so a good computerization of the system
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