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Search results for: GEARBOX, HYDRAULICS, EFFICIENCY

  • Methodology of experimental research on efficiency of hydro-mechanical automatic gearbox

    Publication

    - Year 2023

    The article shortly describes the design and principle of operation of the hydromechanical gearbox and presents the methodology and design of test stands used for testing hydromechanical proto-type gearbox developed at Technical University of Gdansk. The article presents an approach according to which, in order to obtain reliable measurement data, it is necessary to separate the tests of the hydraulic and mechanical parts of the...

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  • DIGITAL HYDRAULICS CIRCUIT BASED ON PWM FUNCTION FOR CONTROLLING HYDRAULIC ACTUATOR POSITION

    Publication

    - Year 2022

    Hydraulic systems are used in many different industries, such as multi-source hydrostatic drive systems. In traditional hydraulic systems, a proportional servo valve is used to control the position of hydraulic actuators. The low energy efficiency and high cost of these control valves are two major problems with these systems. Digital hydraulics is one of the most unique ideas on how to solve these problems. Researchers like digital...

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  • The use of plate springs for preloading of a system of tapered roller bearings of a wind turbine gearbox

    Publication

    The use of preloaded tapered roller bearings in wind turbine drive systems allows a transfer of load in the case of high variations of axial forces. The examined bearing system, a modification of a current design, consists of a pair of different sized bearings. Previous study showed the high sensitivity of tapered roller bearings on the existing radial interference. Dimensional tolerances used in the original design do not allow...

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  • Judicial udefulness of hydraulics

    Publication

    - Year 2009

    Przedstawiono znaczenie hydrauliki do rozwiązywania zagadnień nietypowych, wykraczających poza standardowe kwestie inżynierskie. Jako zasadnicze pole takich zastosowań wskazano spory, rozstrzygane przez organa sprawiewdliwości (sądy, prokuraturę). Podano przykłady konkretnych problemów.

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  • Energy Efficiency

    Journals

    ISSN: 1570-646X , eISSN: 1570-6478