Leszek Osiecki - Science profile - Bridge of Knowledge


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  • Simulation of fluid structure interaction in a novel design of high pressure axial piston hydraulic pump

    - Archive of Mechanical Engineering - Year 2013

    A novel type of an axial, piston-driven high pressure hydraulic pump with variable capacity marks a significant improvement in the area of the hydraulic machinery design. Total discharge from hydrostatic forces eliminates a need for a servomechanism, thus simplifying operation, reducing weight and introducing the possibility of the pump displacement control by computer. PWK-type pumps, invented in the Gdansk University of Technology,...

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  • New generation of the satellite hydraulic pumps

    Hydraulic satellite machines are known and produced in many versions, recognizable by the number of humps on their inner rotor and external gear, and therefore by the number of cooperating gears (satellites). All known shapes were however designed on the base of preliminary assumption that rotor’s and external gear’s pitch lines are formed by merging arcs, tangent to each other in the. This assumption makes calculations easier,...

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  • Measurements of the Hydraulic Fluids Compressibility

    - Year 2021

    Performance of the hydrostatic high-pressure drive systems is affected by the changes of working fluid’s volume. Presence of air bubbles in the fluid cause this problem to be even more serious. To study this phenomenon precise measurements of fluid’s bulk modulus are necessary. Differ-ent measurement methods are applied, but they are either limited to low pressure range or give inaccurate results. To solve the problem the new...

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Obtained scientific degrees/titles

  • 2007-04-18

    Obtained science degree

    dr hab. inż. Mechanical engineering (Technology)
  • 1999-01-29

    Obtained science degree

    dr inż. Mechanical engineering (Technology)
    Wydział Budowy Maszyn, Politechnika Poznańska

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