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Turbochargers with electric support
Žák, Ondřej ; Kučera, Pavel (referee) ; Píštěk, Václav (advisor)
This bachelor's thesis is aimed at supercharging combustion engines and comparison of different approaches in this field. There are mentioned mostly methods of multistage supercharging and turbocharging with electric support. Main subject of this paper is technology with future applications.
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Unconventional methods of increasing power of internal combustion engines
Smrček, Martin ; Pech, Ondřej (referee) ; Štětina, Josef (advisor)
Nowadays the most common method for increasing the performance of internal combustion engines are most used chip tuning or expanding presence of ethanol. The aim of this thesis is to perform a basic analysis of the thermodynamic cycle internal combustion engines, various effects on the thermodynamic efficiency and performance and analyze various methods to additionally increase the performance of the engine. The following are the principles of the analyzed methods, advantages and disadvantages, compared to the methods used in terms of use, price / performance ratio, as well as practical application examples.
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Aircraft Piston Engines
Nepraš, Ondřej ; Svída, David (referee) ; Dundálek, Radim (advisor)
This thesis is focused on the overview of aircraft piston engines. Attention is devoted to known, nontraditional or other interesting construction types of aircraft piston engines largely from period of Second World War. This paper looks at the historical development of aircraft engines and propellers, and is followed by a detailed description of the piston engine design. The detailed description will form the main focus of the thesis. This will cover the main requirements and differences of aircraft piston engines types. Particular engines were selected, described and technical data was given.
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Increasing the efficiency of an internal combustion engine for small autonomous vehicles
Celý, Martin ; Beran, Martin (referee) ; Svída, David (advisor)
The work deals with the analysis of various possibilities of increasing the efficiency of a small internal combustion engine potentially usable for use in the field of autonomous devices of smaller dimensions. It contains an outline of the problems of modern smaller autonomous means and an analysis of available drives designed for them, especially an analysis of propulsion by internal combustion engines. In his next part of the work he provides information about the created mathematical model of the demonstration internal combustion engine in the GT-Power program and an analysis of places where and in what ways its efficiency can be increased. The design of two such components together with the evaluation of the achieved results offers the conclusion of this work.
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Aircraft Engines till the End of WWII
Falta, Libor ; Drápal, Lubomír (referee) ; Dundálek, Radim (advisor)
Bachelor’s thesis deals with aircraft piston engines until end Second World War. Thesis surveys about known, the most use and non-traditional types of engines in timeline. At the beginning it deals about history of aviation and the first use of piston engine as power source energy for controlled flight. There are high requirements on aircraft piston engines. Improving construction and increasing output of engines. In every chapter typical construction and the most powerful engines of the period are described. Thesis includes influence of both World Wars and some prestigious racings, which considerably accelerated global development. Explain the limit for increase output of piston aircraft engines in the last part.
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Methods in Power Increasing of CI and SI Engines
Freisleben, Pavel ; Drápal, Lubomír (referee) ; Dundálek, Radim (advisor)
The bachelor’s thesis is focused on supercharging and its effects on gasoline and diesel engines. It describes different ways of supercharging. In these ways of supercharging, it lists advantages and disadvantages. In the most common ways of supercharging, it mentions in detail the structural elements. It describes the material for producing, the shape of parts and its possible drawbacks. It contains a brief history and modern options of supercharging. In some concepts, the cases of specific turbocharged engines are mentioned.
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Engines for Le Mans Series
Herman, Pavel ; Blaťák, Ondřej (referee) ; Svída, David (advisor)
This bachelor´s thesis deals with the overview of development the drive units, which are used by racing cars of Le Mans endurance series, mainly the race 24 hours of Le Mans. In the first part is outlined the general characteristic the series and the race 24 hours of Le Mans itself. There are briefly described the instructions and the most important technological limitations, observed by designers. The second part contains an owerview of racing cars engines, which are interesting from the historical point of view either by their construction or by achieved success. The last part is devoted to the constructional comparison of drive units of present participants the Le Mans series, their description and the important technical specifications.
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Power Increasing in Combustion Engines
Ehrenberger, Pavel ; Svída, David (referee) ; Dundálek, Radim (advisor)
This thesis contains the summary of information that relates to the problematics of the increasing performance of combustion engines. It describes the familiar ways of supercharging, and assesses the positive and negative aspects of implementation. It also gives information about the constructional resolution, about the functions and technical specifications of turboblowers a compressors, and other posible ways of supercharging. This thesis is pointing out the characteristics of the motor that is designed this specific way and his usage in the working conditions.
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Up-to-date Methods of Supercharging
Strouhal, Pavel ; Janoušek, Michal (referee) ; Dundálek, Radim (advisor)
This thesis is focused on the currently used methods of supercharging internal combustion engines in passenger vehicles. It discusses not only the possibility of improving the overall characteristics of the drive unit, but also the design and layout of the filling aggregates, their regulation a possible failures. It also looks into the issue of reducing emissions of the exhaust gases and shows its dependence on the given methods of supercharging. Short mention includes then some today used engines and their mutual comparison. The result is a summary of knowledge required to understand the basic principles of supercharging, which is today the most common way to increase the performance and efficiency of internal combustion engines.
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Supercharged SI engine
Janíček, Michal ; Bazala, Jiří (referee) ; Beran, Martin (advisor)
The diploma thesis deals with the selection of an eligible supercharger for cooperation with the internal combustion SI engine Honda K20A2. The first part is dedicated to the research referring to an issue of charging and a brief description of particular supercharger types. However, the main part of the thesis consists in the formation of proposal calculation and the tentative choice of the eligible type of supercharger. The part of the work is also the description of the assigned engine and the measurement of its parameters. The most extensive part of the thesis deals with the making of computational model of the atmospheric and supercharged version of the engine and the consecutive simulations in the GT-Power software. Finally, gained results are evaluated and the computational study of the cooperation of the selected supercharger with assigned combustion engine is made in the last part of the diploma thesis.
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