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Determination of the Theoretical and Actual Working Volume of a Hydraulic Motor

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  • Pawel Sliwinski

    (Faculty of Mechanical Engineering, Gdansk University of Technology, 80-233 Gdansk, Poland)

Abstract

A new methodology of determination of the theoretical and actual working volume of a hydraulic motor based on the characteristics of the delivered flow rate into hydraulic motor vs. the rotational speed at a constant pressure drop in the working chambers is described in this paper. A new method of describing the delivered flow rate into a motor per one shaft revolution as a nonlinear function of the pressure drop in the motor working chamber is proposed. The influence of the flowmeter location in the measurement system on the result of the theoretical and actual working volume calculation is described. It is shown that, in order to assess the energy losses (volumetric and mechanical) in the motor, the actual working volume must be a polynomial function (third degree) of its pressure drop in the working chambers. The result of the experimental tests of the satellite hydraulic motor confirmed the validity of the proposed method. The result of the calculation of the theoretical working volume of the motor according to the proposed method was compared with the results of calculations according to known methods.

Suggested Citation

  • Pawel Sliwinski, 2020. "Determination of the Theoretical and Actual Working Volume of a Hydraulic Motor," Energies, MDPI, vol. 13(22), pages 1-23, November.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:22:p:5933-:d:444668
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    References listed on IDEAS

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    1. Gijsbert Toet & Jack Johnson & John Montague & Ken Torres & José Garcia-Bravo, 2019. "The Determination of the Theoretical Stroke Volume of Hydrostatic Positive Displacement Pumps and Motors from Volumetric Measurements," Energies, MDPI, vol. 12(3), pages 1-15, January.
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    Cited by:

    1. Pawel Sliwinski, 2021. "Determination of the Theoretical and Actual Working Volume of a Hydraulic Motor—Part II (The Method Based on the Characteristics of Effective Absorbency of the Motor)," Energies, MDPI, vol. 14(6), pages 1-20, March.
    2. Pawel Sliwinski & Piotr Patrosz, 2021. "Methods of Determining Pressure Drop in Internal Channels of a Hydraulic Motor," Energies, MDPI, vol. 14(18), pages 1-26, September.

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