Hydromechanical automatic gearbox for agricultural vehicles and heavy machinery - Project - Bridge of Knowledge

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Hydromechanical automatic gearbox for agricultural vehicles and heavy machinery

The project anticipates designing and testing a gearbox for agricultural and specialized vehicles, allowing a smooth change of the gear ratio within the range of low velocities due to the application of a hydraulic transmission and a step change of the gear ratio within the range of high velocities due to the application of a mechanical gearbox. Scientific publications as well as production deployment of the designed gearbox have been planned within the project.

Details

Project's acronym:
HydmAG
Financial Program Name:
LIDER
Organization:
Narodowe Centrum Badań i Rozwoju (NCBR) (The National Centre for Research and Development)
Agreement:
LIDER//22/0130/L-8/NCBR/2017 z dnia 2017-12-13
Realisation period:
2018-03-01 - 2021-06-30
Project manager:
dr inż. Piotr Patrosz
Team members:
Realised in:
Department of Mechanics and Mechatronics
Project's value:
1 197 500.00 PLN
Request type:
National Research Programmes
Domestic:
Domestic project
Verified by:
Gdańsk University of Technology

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total: 5

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Catalog Projects

Year 2021

  • Experimental Research of an Axial Piston Pump with Displaced Swash Plate Axis of Rotation
    Publication

    - Year 2021

    The article describes the influence of displacement of the swash plate rotation axis on the efficiency of axial piston pumps. The dead space volume was defined as the volume of the working chamber in the extreme position of the piston at the end of the pumping phase and its variability was determined as a function of the position of the axis of rotation of the swash plate and the swing angle of swash plate. The influence of swash...

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  • Influence of Gaps’ Geometry Change on Leakage Flow in Axial Piston Pumps
    Publication

    - Year 2021

    Axial piston pumps are the core elements of most medium and high-pressure hydraulic systems. High volumetric efficiency and high working pressures are the main advantages of this type of pumps. Therefore it is necessary to accurately calculate the leakage flow through the gaps to design efficient high-pressure pump. The main difficulty of such calculations is the fact, that the gaps change their geometry during pumping process....

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  • Influence of Properties of Hydraulic Fluid on Pressure Peaks in Axial Piston Pumps’ Chambers
    Publication

    - ENERGIES - Year 2021

    The article concentrates on the research of the pressure peaks in a working chamber of an axial piston pump. The main focus of the article is the influence of fluid properties on the pressure peaks value. Experimental and analytical methods were used to determine the impact of the fluid density, viscosity, compressibility and aeration. The article describes the pressure peak generation process and explains the theoretical basis...

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  • Torque Transmitted by Multi-plate Wet Clutches in Relation to Number of Friction Plates and Their Dimensions
    Publication

    In the paper results of experimental tests on multi-plate wet clutch torque capacity for various diameters and numbers of friction plates are presented. Construction of an apparatus for laboratory tests of wet clutch engagement, drag torque and maximum torque is shown. Methodology of maximum torque capacity experiment and hydraulic circuit diagram, which supplies a motor and an actuator for the experiment are described. Analytically...

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Year 2020

  • Metodologia badania skrzyni biegów z wykorzystaniem układu hydraulicznego jako hamowni
    Publication

    W artykule przedstawiono metodologię prowadzenia badań mechanicznej skrzyni biegów. Sposób prowadzenia pomiarów zaprezentowano na przykładzie badań wybranej przekładni. Przedstawiono i opisano różne konfiguracje stanowiska badawczego wykorzystującego układ hydrauliczny, który pełnił funkcję hamowni. Zawarto opis konstrukcji prototypowej przekładni będącej obiektem badań. Ponadto omówiono przykładowe charakterystyki uzyskane w ramach...

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