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Petrol Direct Injection
Moravec, Tomáš ; Janoušek, Michal (referee) ; Dundálek, Radim (advisor)
This bachelor thesis is about the system of direct injection petrol engines within cars. The first chapter is designated to the history of the direct injection petrol system and the development of different concepts. The thesis then concentrates on the mixing of air with fuel and describes the injection system in detail. Within the content of my work is a list of specific engines, using the direct injection system. The last chapter is devoted to the future development of direct injection petrol system and those with the compression-ignition system.
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Radial cylinder aircraft engines
Šimíček, Petr ; Janoušek, Michal (referee) ; Drápal, Lubomír (advisor)
The bachelor's thesis is focused on design of aircraft radial engines. Home is a treatise on the history of aircraft radial engines and their development in historical context. The second part is focused on the construction of radial engines of aircraft, then are some interesting construction solutions and compared with the engine of another type of construction.
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Valvetrain of Compression-ignition Tractor Engine
Mikula, Vojtěch ; Janoušek, Michal (referee) ; Drápal, Lubomír (advisor)
This bachelor thesis deals with the main types and parts of the valvetrain systems of four-stroke engines. In the first part of the thesis are presented the most widely used versions of valvetrains and their use in the tractor engines. In the next part of the thesis is performed the construction and stress calculation of the valvetrain according to proposed proportions.
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Conception of mounting Formula Student engine to dynamometer
Špičák, Milan ; Prokop, Aleš (referee) ; Janoušek, Michal (advisor)
This bachelor thesis describes the mounting of single cylinder motorcycle engine on a dynamometer. The first part is about Formula Student competition. It also contains an overview of the motor testing cells, including measuring equipment. Finally describes the draft of mounting the engine Husaberg FE 570 on dynamometer Superflow SF-902 including virtual model for illustration.
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Race car diferentials
Kimlová, Anna ; Prokop, Aleš (referee) ; Janoušek, Michal (advisor)
This thesis deals with the most common differential design solutions. The first part examines the reasons for mounting of differentials. The second part is a summary of the most commonly used differentials. The last part is dedicated to differentials used in sports and race cars, i.e. active and self-locking differentials.
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BMW Eight-cylinder Vee-type Engines
Domský, Viktor ; Janoušek, Michal (referee) ; Drápal, Lubomír (advisor)
This bachelor’s thesis incorporates development of BMW Vee-type eight cylinder engines, made for normal, sports and race cars. In the first part there is history of BMW company and effect of legislation of the day, engine technology and their labelling. In the second part there is overview of engine development in chronological order. Interesting technical solutions, power output and applications are mentioned in engines part. Chosen engines are comprised with competition of the day.
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Application of plain bearings for four-stroke internal combustion engines
Šedo, Matej ; Janoušek, Michal (referee) ; Drápal, Lubomír (advisor)
Subject of this thesis are plain bearings and especially their application for four-stroke internal combustion engines. Thesis is divided into two main parts. The first part provides a basic description of plain bearings, their distribution and evolution. It also discusses their materials and the theory of hydrodynamic lubrication. The second part covers concept of sliding bearings in internal combustion engines and their load associated with the election of right material. It also includes description of particular application of plain bearings and the method of oil distribution. It handles the mounting of crankshaft and camshaft, piston pin, connecting rod and other places where sleeve bearings are use.
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Variable Valvetrain Systems
Věříš, Michal ; Janoušek, Michal (referee) ; Drápal, Lubomír (advisor)
This bachelor thesis focuses on the variable valve actuation systems and their influence mainly on spark-ignition engines. Describes the principle of their function, comparison of each other, brief history and a view to future developments. Part of the work is also a simulation of VTEC-E.
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Acoustic Holography
Vacula, Jan ; Janoušek, Michal (referee) ; Prokop, Aleš (advisor)
This bachelor´s thesis is focused on description and process during contactless identification of sound source for near and far field. Principles of individual methods of acoustic holography are relatively shortly described and for details of this problem (on the level of algorithm of software equipment) you can see the references below thesis, which were the basic theory of my study. The introduction was conceived like description of “acoustics world”. You can find the basic information and principles about sound propagation in space and their mathematical contain at time. For this it was essential to define quantity and their units. Subsequently there is inventory of used sensors and their own construction for this measurement. Next chapter point to some techniques of acoustic holography used in practice. It includes mainly a method NAH (Nearfield Acoustical Holography) and SONAH (Statistically Optimised Nearfield Acoustical Holography) used for near-field. For reconstruction of far-field is shown principle of a method of Beamforming and manual measurement by intensity probe. The ending is focused on a concrete application these methods on combustion engines of cars.
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Measurement and Evaluation Methods of Powertrain Vibrations
Vítek, Michal ; Janoušek, Michal (referee) ; Prokop, Aleš (advisor)
This bachelor´s thesis deals with the methods of measurement and evaluation of powertrain vibrations. Introduction of this work is defining the basic parameters of vibration. It also shows the experimental modal analysis, vibration excitation methods and measuring responses to a given excitation. The last part is operational modal analysis and its comparison with experimental modal analysis.
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