Efficient and smart design fluid power systems are now in very high demand worldwide. With over 20 years development in fluid power after Backés talk, it can be seen that he accurately predicted the trend and directions of fluid power. He also concluded the presentation with a prognosis of the possible future development of fluid power, as shown in Table 1. It includes three main aspects: utilization of the advantages of fluid power, compensation of the disadvantages of fluid power, and use of the advantages of other technologies to improve fluid power technology.
He addressed the challenges from the other power generation and transmission methods, such as mechanical and electrical, to fluid power and the possibilities for further development of fluid power, as shown in Fig. In the last few decades technology has advanced and many more uses have been found for fluid power. He traced the developments of fluid power from the formulation of the fundamental law of hydrostatics to the hydraulic applications of today. Backé had a presentation with the topic ‘The Present and Future of Fluid Power’ in the eightieth Thomas Hawksley Memorial Lecture in London ( Backé, 1993). Hydraulic topics range through some areas of science and most engineering modules, and cover concepts such as pipe flow, fluidics, fluid power motion control, pumps, valves, actuators, turbines, hydropower, computational fluid dynamics, and flow measurement. Fluid mechanics provides the theoretical foundation for hydraulics.
In fluid power engineering, hydraulics is used for the generation, control, and transmission of power by the use of pressurized liquids.
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