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10. Internationales Fluidtechnisches
Kolloquium

8. - 10. März | 2016
in Dresden

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Kurzfassung

16:25   ics       Saal 5

Experimental Investigation of the Air Release in Hydraulic Reservoirs

First author:
Marco Longhitano, RWTH Aachen University, Institute for Fluid Power Drives and Controls (IFAS), Germany

Co-author(s):
Alessandro Protase, RWTH Aachen University, Institute for Fluid Power Drives and Controls (IFAS)
Hubertus Murrenhoff, RWTH Aachen University, Institute for Fluid Power Drives and Controls (IFAS)

Abstract:
Air contamination strongly decreases the efficiency of fluid power systems and when
the allowable limits are exceeded, the performance of the system deteriorates. The
hydraulic reservoir performs the function of releasing the entrained air of the hydraulic
system to the surroundings. In recent years, the reservoir design has become an
important task in the design of the hydraulic system due to space restrictions forcing
the use of small sized reservoirs. Despite this fact, experimental results on an air
release are not available. In this paper, an experimental investigation of the air release
in hydraulic reservoirs is presented. A test apparatus using an optical method as well
as the post-processing of the results is described. These are given in terms of an air
release rate for different reservoir designs over a wide range of oil flow rates and air
loads. The current study is a significant step forward in the design of fluid power
systems, as it provides an experimental procedure to measure the air release in the
hydraulic reservoir as well as its quantitative analysis.