As a follow-up to our earlier paper[ 1 ]; we have evaluated the performance of a vegetable-based hydraulic oil, Mobil EAL 224H, in a series of Vickers piston pumps. The primary intent of this work was to address the oil life/oxidation stability and pump performance issues for vegetable-based hydraulic oils. Although we have over two years (1991-1993) of successful commercial experience with Mobil EAL 224H, we wanted to document the performance in a controlled set of experiments using a variety of piston pumps. Results demonstrate that although Mobil EAL 224H shows a substantial (25%) viscosity increase after approximately 1800 hours of operation at the maximum recommended temperature of 180°F, the pumps tested operate effectively within their respective industrial unit ratings.This paper presents information on the test hardware used to conduct the fluid evaluations, fluid properties during the tests, pump performance testing in terms of fill characteristics, dynamic response, yoke bearing hysteresis and pump efficiencies and endurance testing results for each piston pump series tested.


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    Title :

    Vegetable-Based Hydraulic Oil Performance in Piston Pumps


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Earthmoving Industry Conference & Exposition ; 1994



    Publication date :

    1994-04-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Vegetable-based hydraulic oil performance in piston pumps

    Cheng,V.M. / Galiano-Roth,A.S. / Marougy,T. et al. | Automotive engineering | 1994


    Vegetable-Based Hydraulic Oil Performance in Piston Pumps

    Cheng, V. M. / Galiano-Roth, A. S. / Marougy, T. et al. | British Library Conference Proceedings | 1994