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Testing of piston combustion engines
Humpolíček, František ; Kloss, Ondřej (referee) ; Kaplan, Zdeněk (advisor)
The aim of this thesis is to compile knowledge and provide a comprehensive overview of the testing of piston combustion engines, dynamometers and types of testing for engines designed for agricultural machinery. Types of various tests are described, dynamometers are categorized and the characteristics of individual components are studied. Different types of tests are also categorized and their principles summarized. Based upon these findings, the most suitable configurations are determined for a borrowed dynamometer to measure agricultural machinery. The borrowed dynamometer was used to conduct practical measurements of the external speed characteristics of combustion engines in agricultural machinery. It was experimentally determined that the duration of measurement is limited by the reduced efficiency of eddy current brakes due to increasing rotor temperature.
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Press LKDS 630
Humpolíček, František ; Dokoupil, Vladimír (referee) ; Omes, Jiří (advisor)
Final thesis on the design of the drive of a cutting mechanical two-point crank press with a nominal force of 6300 kN. After the theoretical definition of the area of mechanical crank presses and their drives at the beginning of the work, the actual design solution follows. The main idea of the design is the drive arrangement with the concurrent axis of the clutch shaft. The supplied torque is distributed on two longitudinally mounted drive units via a two-sided bevel gear. Solution of the construction design is aimed at enabling workspace variability while simultaneously unifying the maximum number of drive components. Drawing documentation of selected components and assemblies is the part of the thesis.
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Press LKDS 630
Humpolíček, František ; Dokoupil, Vladimír (referee) ; Omes, Jiří (advisor)
Final thesis on the design of the drive of a cutting mechanical two-point crank press with a nominal force of 6300 kN. After the theoretical definition of the area of mechanical crank presses and their drives at the beginning of the work, the actual design solution follows. The main idea of the design is the drive arrangement with the concurrent axis of the clutch shaft. The supplied torque is distributed on two longitudinally mounted drive units via a two-sided bevel gear. Solution of the construction design is aimed at enabling workspace variability while simultaneously unifying the maximum number of drive components. Drawing documentation of selected components and assemblies is the part of the thesis.
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|
|
Testing of piston combustion engines
Humpolíček, František ; Kloss, Ondřej (referee) ; Kaplan, Zdeněk (advisor)
The aim of this thesis is to compile knowledge and provide a comprehensive overview of the testing of piston combustion engines, dynamometers and types of testing for engines designed for agricultural machinery. Types of various tests are described, dynamometers are categorized and the characteristics of individual components are studied. Different types of tests are also categorized and their principles summarized. Based upon these findings, the most suitable configurations are determined for a borrowed dynamometer to measure agricultural machinery. The borrowed dynamometer was used to conduct practical measurements of the external speed characteristics of combustion engines in agricultural machinery. It was experimentally determined that the duration of measurement is limited by the reduced efficiency of eddy current brakes due to increasing rotor temperature.
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