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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)

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  • Pawel Sliwinski

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

Abstract

In this article, the second method of determination of the theoretical and actual working volume of a hydraulic motor is described. The proposed new method is based on the characteristics of effective absorbency of the motor. The effective absorbency has been defined as the ratio of flow rate in a motor to the rotational speed of the motor’s shaft. It has been shown that the effective absorbency is a nonlinear function of the rotational speed and nonlinear function of the pressure drop in the motor’s working chambers. Furthermore, it has been proven that the actual working volume of a motor is a function of a third degree of pressure drop in the motor’s working chamber. The actual working volume should be taken to assess the mechanical and volumetric energy losses in the motor. Furthermore, the influence of the flowmeter location in the measurement system and the compressibility of liquid on the result of the theoretical and actual working volume calculation was also taken into account and is described in this article. The differences in the assessment of the volumetric efficiency assuming the theoretical and actual working volume was also shown.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:6:p:1648-:d:517784
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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.
    2. Pawel Sliwinski, 2020. "Determination of the Theoretical and Actual Working Volume of a Hydraulic Motor," Energies, MDPI, vol. 13(22), pages 1-23, November.
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    Cited by:

    1. Ryszard Dindorf & Jakub Takosoglu & Piotr Wos, 2021. "Advances in Fluid Power Systems," Energies, MDPI, vol. 14(24), pages 1-6, December.
    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.
    3. Pedro Javier Gamez-Montero & Ernest Bernat-Maso, 2022. "Taguchi Techniques as an Effective Simulation-Based Strategy in the Design of Numerical Simulations to Assess Contact Stress in Gerotor Pumps," Energies, MDPI, vol. 15(19), pages 1-24, September.

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