Design and testing of pistons and cups for large hydrostatic pumps and motors

Achten, Peter; Mommers, Robin; Potma, H. W.; Achten, Jasper

doi:10.25368/2020.72

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2024

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“…The derived definitions for overall power loss and efficiency are used to map the performance of a new hydraulic transformer prototype. This 80 cc/rev Floating Cup type hydraulic transformer has been designed and developed by Innas [11].…”

Section: Introductionmentioning

confidence: 99%

Efficency Definitions of Hydraulic Transformers And First Test Results of the Floating Cup Transformer (Fct80)

Mommer,

Achten,

Potma

et al. 2024

14th International Fluid Power Conference

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The FCT80 is a new hydraulic transformer, based on the floating cup principle. The transformer has valve plates with three ports, and is controlled by means of setting the rotational position of these valve plates. Contrary to hydraulic pumps and motors, there are no standardised efficiency definitions for this type of integrated transformers. In this paper, general definitions for efficiency and power loss for hydraulic transformers are proposed, which also take the compressibility of the oil into account. This paper also describes and presents the first test results of the overall efficiency of the FCT80.

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Section: Introductionmentioning

confidence: 99%