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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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Turbochargers
Veleba, Lukáš ; Škorpík, Jiří (referee) ; Kracík, Petr (advisor)
This bachelor thesis describes the basic principles of turbocharger function with a focus on the causes and consequences of damage. In it’s four main parts, the thesis depicts the historical evolution of turbochargers, explains the basic principle of supercharging, offers a general classification of superchargers and introduces some of the lines of turbochargers being produced by manufacturers today. The key part is focused on the types of turbocharger damage dealt with at TurboCar, s.r.o.
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Modern methods of supercharger internal combustion engines
Blaha, Adam ; Mauder, Tomáš (referee) ; Štětina, Josef (advisor)
This bachelor´s thesis is aimed at the supercharged engines with the internal combustion. Here are mentioned various types of a charging considering design and use, typical diagrams appearance and the boost control. Considering the name of this bachelor´s thesis the old types of charging or these which are not in use today for any reason are not purposely mentioned here.
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Up-to-date Methods of Charging Processes
Górnisiewicz, Tomáš ; Janoušek, Michal (referee) ; Dundálek, Radim (advisor)
This thesis deals with up-to-date methods of charging processes used in combustion engines of contemporary cars. Major emphasis is put on turbocharged petrol engines. Principles of charging process are explained as well as the most common and extraordinary ways of charging process. Following chapter contains summary of present-day turbocharged and supercharged engines. Final part describes turbocharger failures. Turbo-charging represents an elementary way to increase engine power and allows designing high efficient engines of small dimensions.
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Supercharging design for a 1.6L SI Engine
Švábíková, Anna ; Bazala, Jiří (referee) ; Beran, Martin (advisor)
This master’s thesis focuses on the problematics of supercharging of SI engines aiming on performance boost. The aim of this thesis is to propose a suitable turbocharger for reaching defined performance goals. A method of successive SI engine modelling process is proposed, using the GT-Power platform. The choice of suitable turbocharger is based on a analytic calculation of required turbocharger parameters. The cooperation of the engine with the chosen turbocharger is verified by simulations. An important part of this thesis is sensitivity analysis, which purpose is to determine the impact of changing chosen parameters on maximum pressure in the combustion chamber and on the exhaust gas temperature.
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Ideal cycle turbocharged internal combustion engines
Hrubý, Jakub ; Jedelský, Jan (referee) ; Štětina, Josef (advisor)
The aim of this thesis is description of various charging methods as a one of the most attainable form of ramping up the power and fuel consumption efficiency of naturally aspirated engines nowadays. Main aspect is thermodynamic part of the whole problem, especially the comparison of thermal efficiencies between different cycles. After a short history brief, main reasons why is charging so important are answered. General description, work principles, advantages and disadvantages of new technologies are also included. Emphasis is aimed at topicality and graphic interpretation. Thesis is dealing with charging diesel engines, but also petrol engines in automotive industry and offering a possible way of future development.
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Turbochargers for Present Combustion Engines
Šárfy, Ľuboš ; Janoušek, Michal (referee) ; Dundálek, Radim (advisor)
This bachelor´s thesis is focused on basic review of turbochargers present´s drive units. Work is specialized search dealing in first part with history and process of supercharging. In second, main part work attends to boost control of turbochargers, multistage supercharging, twin-scroll supercharging and latest design solutions in concrete actual petrol and diesel engines. Final part describes individual parts of turbochargers and failures in use of turbochargers.
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