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Vane Geometry Effect on Lubrication Conditions between Vane Tip and Cam-Ring in Hydraulic Vane Machines

Received: 15 November 2014    Accepted: 19 November 2014    Published: 24 November 2014
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Abstract

Vane geometry is an important parameter affecting the lubrication conditions of hydraulic vane machines. A simple thermo-elasto-hydrodynamic lubrication (TEHL) model was used to calculate the friction between vane tip and cam-ring of the hydraulic vane machines. Effect of vane geometry and its dimensions on hydraulic vane machines was theoretically investigated. Navier-Stokes and energy equations were numerically solved using finite difference technique. Viscosity and density distributions were considered in the TEHL-model. Results show that vane geometry optimization is quite important to enhance lubrication conditions of hydraulic vane machines. The study shows that the straight vane geometry is the best choice for high pressure applications. At higher values, increasing of vane tip radius of curvature and vane thickness enhances lubrication conditions between vane tip and cam-ring. Vane tip radius of curvature and vane thickness should not be less than 2 mm and 1.5 mm respectively.

Published in International Journal of Mechanical Engineering and Applications (Volume 3, Issue 1-2)

This article belongs to the Special Issue Advanced Fluid Power Sciences and Technology

DOI 10.11648/j.ijmea.s.2015030102.11
Page(s) 1-10
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Vane Geometry, Friction Coefficient, TEHL-Model, Vane Tip Radius, Vane Thickness

References
[1] Mohamed Elashmawy. Theoretical Investigation of Friction Forces between Vane Tip and Cam-Ring in Oil Vane Pumps. International Journal of Science, Technology and Society. Vol. 2, No. 5, 2014, pp. 121-128. doi: 10.11648/j.ijsts.20140205.15
[2] M. Elashmawy. Study of Vane Tip Friction in Oil Vane pump. Suez Canal University Dissertation. Egypt, 2009.
[3] Y. Inaguma. Oil temperature influence on friction torque characteristics in hydraulic pumps. Proc IMechE Part C: J Mechanical Engineering Science 226(9); pp. 2267-2280, 2011.
[4] Y. Inaguma and N. Yoshida. Mathematical Analysis of Influence of Oil Temperature on Efficiencies in Hydraulic Pumps for Automatic Transmissions. SAE Int. J. Passeng. Cars - Mech. Syst. 6(2):786-797, doi:10.4271/2013-01-0820, 2013.
[5] P. C. Sui. Prediction of film thickness and friction at a rotary pump blade and liner interface. American Society of Mechanical Engineering (ASME). Vol. 72, ASME, New York, pp.115-122, 1995.
[6] Y. Inaguma, and A. Hibi. Reduction of friction torque in vane pump by smoothing cam ring surface. Proceedings of the Institution of Mechanical Engineers Part C-Journal of Mechanical Engineering Science. 221 (5), pp. 527-534, 2007.
[7] M. Elashmawy, and H. Murrenhoff. Experimental Investigation of friction force between vane tip and cam-ring in oil vane pumps. International Journal of Fluid Power. Vol. 10, No. 1, pp 37-46, 2009.
[8] M. Panek. Vane pump control in order to maintain liquid friction and leak tightness. International Capathian Conference ICCC. Zakopane, Poland, 2004.
[9] Y. Inaguma, and N. Yoshida. Variation in Driving Torque and Vane Friction Torque in a Balanced Vane Pump. SAE Technical Paper, 2014-01-1764, 2014.
[10] P. W. Gold. Tribology. Umdruck zur Vorlesung. Trans-Aix-Press, Aachen, Germany, 2003.
[11] J. Blume, “Druck und Temberatureinfluß auf Viscosität und Kompressibilität von flüssigen Schmierstoffen,” RWTH Aachen University Dissertation, 1987
Cite This Article
  • APA Style

    Mohamed Elashmawy, Abdulaziz Alghamdi. (2014). Vane Geometry Effect on Lubrication Conditions between Vane Tip and Cam-Ring in Hydraulic Vane Machines. International Journal of Mechanical Engineering and Applications, 3(1-2), 1-10. https://doi.org/10.11648/j.ijmea.s.2015030102.11

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    ACS Style

    Mohamed Elashmawy; Abdulaziz Alghamdi. Vane Geometry Effect on Lubrication Conditions between Vane Tip and Cam-Ring in Hydraulic Vane Machines. Int. J. Mech. Eng. Appl. 2014, 3(1-2), 1-10. doi: 10.11648/j.ijmea.s.2015030102.11

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    AMA Style

    Mohamed Elashmawy, Abdulaziz Alghamdi. Vane Geometry Effect on Lubrication Conditions between Vane Tip and Cam-Ring in Hydraulic Vane Machines. Int J Mech Eng Appl. 2014;3(1-2):1-10. doi: 10.11648/j.ijmea.s.2015030102.11

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  • @article{10.11648/j.ijmea.s.2015030102.11,
      author = {Mohamed Elashmawy and Abdulaziz Alghamdi},
      title = {Vane Geometry Effect on Lubrication Conditions between Vane Tip and Cam-Ring in Hydraulic Vane Machines},
      journal = {International Journal of Mechanical Engineering and Applications},
      volume = {3},
      number = {1-2},
      pages = {1-10},
      doi = {10.11648/j.ijmea.s.2015030102.11},
      url = {https://doi.org/10.11648/j.ijmea.s.2015030102.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmea.s.2015030102.11},
      abstract = {Vane geometry is an important parameter affecting the lubrication conditions of hydraulic vane machines. A simple thermo-elasto-hydrodynamic lubrication (TEHL) model was used to calculate the friction between vane tip and cam-ring of the hydraulic vane machines. Effect of vane geometry and its dimensions on hydraulic vane machines was theoretically investigated. Navier-Stokes and energy equations were numerically solved using finite difference technique. Viscosity and density distributions were considered in the TEHL-model. Results show that vane geometry optimization is quite important to enhance lubrication conditions of hydraulic vane machines. The study shows that the straight vane geometry is the best choice for high pressure applications. At higher values, increasing of vane tip radius of curvature and vane thickness enhances lubrication conditions between vane tip and cam-ring. Vane tip radius of curvature and vane thickness should not be less than 2 mm and 1.5 mm respectively.},
     year = {2014}
    }
    

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  • TY  - JOUR
    T1  - Vane Geometry Effect on Lubrication Conditions between Vane Tip and Cam-Ring in Hydraulic Vane Machines
    AU  - Mohamed Elashmawy
    AU  - Abdulaziz Alghamdi
    Y1  - 2014/11/24
    PY  - 2014
    N1  - https://doi.org/10.11648/j.ijmea.s.2015030102.11
    DO  - 10.11648/j.ijmea.s.2015030102.11
    T2  - International Journal of Mechanical Engineering and Applications
    JF  - International Journal of Mechanical Engineering and Applications
    JO  - International Journal of Mechanical Engineering and Applications
    SP  - 1
    EP  - 10
    PB  - Science Publishing Group
    SN  - 2330-0248
    UR  - https://doi.org/10.11648/j.ijmea.s.2015030102.11
    AB  - Vane geometry is an important parameter affecting the lubrication conditions of hydraulic vane machines. A simple thermo-elasto-hydrodynamic lubrication (TEHL) model was used to calculate the friction between vane tip and cam-ring of the hydraulic vane machines. Effect of vane geometry and its dimensions on hydraulic vane machines was theoretically investigated. Navier-Stokes and energy equations were numerically solved using finite difference technique. Viscosity and density distributions were considered in the TEHL-model. Results show that vane geometry optimization is quite important to enhance lubrication conditions of hydraulic vane machines. The study shows that the straight vane geometry is the best choice for high pressure applications. At higher values, increasing of vane tip radius of curvature and vane thickness enhances lubrication conditions between vane tip and cam-ring. Vane tip radius of curvature and vane thickness should not be less than 2 mm and 1.5 mm respectively.
    VL  - 3
    IS  - 1-2
    ER  - 

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Author Information
  • Mechanical Engineering Department, Engineering College, University of Hail, Hail, Saudi Arabia; Engineering Science Department, Faculty of Petroleum and Mining Engineering, Suez University, Suez, Egypt

  • Mechanical Engineering Department, Engineering College, University of Hail, Hail, Saudi Arabia

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