Leszek Osiecki - Science profile - MOST Wiedzy

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  • Measurements of the Hydraulic Fluids Compressibility

    - 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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  • 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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  • Rozwój konstrukcji pomp satelitowych

    Artykuł prezentuje budowę i działanie hydraulicznej pompy satelitowej pompy. Zbudowane i przebadane prototypy nowej pompy wykazały się wysokimi parametrami pracy i zdolnością tłoczenia różnych cieczy: oleju, wody i emulsji HFAE. Mechanizm pompy tworzą dwie nieokrągłe uzębione bieżnie: zewnętrzna obwodnica i wewnętrzna planeta oraz umieszczone pomiędzy nimi koła zębate (satelity). Obecny kształt planety i obwodnicy powoduje szybkie...

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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