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The aim of this master’s thesis is to determine the torque momentum of the jet deflector of the Pelton turbine using a two-phased CFD simulation. The reason for determining the moments is the inaccurate formula according to a standard, whose results are assumed to be too excessive. The first part is devoted to theory of Pelton turbine and its main components. The second part contains the design of deflector, explanation of the used k- turbulence method and the Volume of Fluid two-phased flow modeling method. The results of the simulation are presented at the end of the thesis.

This graduation thesis dwells on a worm gear design for an elevator mechanism in an already existing wheel case with actuator unit S3 for elevator type BOV 320/0,63. The work includes dimensional and control calculation for the worm gear and as an attachment you will find spiral worm and worm gear drawing documentation, including its specific location.

The present diploma thesis deals with innovation of built-up crankshaft of Blata minibikes. Minibike is the type of a small two-stroke motorcycle equipped with an internal combustion engine of the volume 40 or 50 cm3. The machine is designed for racing circuits; not only for young riders but also for seniors. The innovation is in the design and verification of pressed connections in the imposition of major pins in the arms of the crankshaft. Pressed connections are designed on the basis of the analysis of force interaction on the crankshaft at maximum revolutions. The proposed solutions are verified by FEM calculations. Based on the results, the best option is selected. For the selected option, the impact of force interaction at maximum machine performance is studied. Finally, on the basis of these facts, designing, technological and economic analysis of feasibility of new production technology is carried out.