Solution of Air Entrainment for Fluid Power Systems

Bubbles or foam in working oils greatly influence the performance of fluid power systems and may cause major problems. Recently, one of the authors has developed a new device using swirl flow for bubble elimination capable of eliminating bubbles and of decreasing dissolved gases. In this paper, performance of the bubble elimination device is demonstrated by reducing rate of bubble content and of dissolved air in oils. The developed bubble elimination device can solve the problem concerning the air entrainment in fluid power systems.