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10. Internationales Fluidtechnisches

8. - 10. März | 2016
in Dresden

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12:40   ics       Saal 4

The control of an open-circuit, floating cup variable displacement pump

First author:
Peter Achten, INNAS, Netherlands

The floating cup principle is a general hydrostatic principle for both constant and variable displacement pumps and motors, as well as for hydraulic transformers. In this paper, the focus will be entirely on the control of the displacement of the variable 28 cc Floating Cup pump (FCVP28). The floating cup principle features two opposed swash plates, for which both angular positions need to be controlled in order to cover the entire range from zero to full displacement. The results of both extended numerical analysis as well as simplified linearized models will be compared to test results on a 28 cc FCVP. Special emphasis will be on the dynamic behaviour of the displacement control.