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Two-stroke single-cylinder motorcycle engine with exhaust valves
Slovák, Marek ; Svída, David (referee) ; Drápal, Lubomír (advisor)
The master´s thesis deals with the design of two-stroke uniflow scavenged motorcycle engine according to patent František Pudil (PV 7018-80) 216305. The engine has been designed for using in off-road sport motorcycles. The objective of this thesis is to design the engine of this conception and to reveal benefits and defects of this concept by using this method. In this thesis the emphasis is put on design of the construction groups which are directly related to unconventional concept of engine. On the other hand, the parts which can be designed conventionally were solved marginally or were not solved at all. In the first part of the thesis there are thoroughly dicsussed expected benefits and disadvantages of this concept. Computational part focuses on valvetrain and porting of engine. Last part deals with design of engine parts.
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Increasing Efficiency of Intake Port for SI Engine
Herka, Miroslav ; Drápal, Lubomír (referee) ; Svída, David (advisor)
The thesis describes design solutions the inlet port of the modern combustion engine. The thesis describes basic properties of the inlet port and the types of flow. It is focused the experimental measure of the real inlet port engine Husaberg. The results of the experimental measure are compared with results of the simulation in software CFD. Moreover, it describes creation of 3D parametric model in software Pro/Engineer based on the real geometry exquired from software ATOS. At the end of the work are compared with results of the simulation origin geometry inlet port with origin inlet valve with different changes shapes of valve.
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Increasing Single Cylinder SI Two-Stroke Engine Performance
Stejskal, Miroslav ; Drápal, Lubomír (referee) ; Svída, David (advisor)
This thesis deals with two-stroke engine design modifications to enhance its performance parameters. The introduction summarizes the various solutions of two-stroke engines. The next part deals with design modifications of the engine power, their implementation and subsequent modification. The work includes strain and stress analysis of the piston, which includes a complete indication of pressures in two-stroke engine. The achieved results of FEM analysis were used to design better piston geometry.
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Design of Modern V8 Combustion Engine
Šebesta, Radek ; Drápal, Lubomír (referee) ; Svída, David (advisor)
Master´s thesis is considered with design and construction of V8 combustion engine with small size and low mass of its body. In the construction were used mass-produced components from the other engines. From every component was generated a 3D model in computer program Pro/Engineer, new necessary parts were made in the same program and put together to assembly. Main part of the construction was to design a new crankshaft, a crankcase and an engine lubricating system. The crankshaft was subjected computing analysis in program Pro/Mechanica, using FEM.
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Shape Optimalisation of Aircraft Engine Crankshaft
Vopařil, Jan ; Drápal, Lubomír (referee) ; Novotný, Pavel (advisor)
This thesis describes the variety and the width of issues connected with crankshafts of combustion engines. It distinguishes different factors, which influence the shape and size of these crankshafts and the selected findings are then transferred into the design of crankshaft for the particular engine. The thesis also presents coherent description of application of topology optimization to the particular crankshaft and also different, more complex design procedures leading to the optimal shape of crankshaft are afterwards suggested. Quality of such a design is then verified by comparative analysis of fatigue of the crankshaft.
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Powertrain of a V-four engine
Pecka, Luboš ; Svída, David (referee) ; Drápal, Lubomír (advisor)
This thesis is focused to design of powertrain V-four gasoline engine. It compares crank-pins configuration, firing sequence and bank angle with a view of crankshaft stress and torsional vibration. The thesis also includes crankshaft balancing design.
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Thermodynamic Analysis of Internal Combustion Engine
Čajka, Lukáš ; Drápal, Lubomír (referee) ; Svída, David (advisor)
This thesis deals with analysis of the thermodynamics of the internal combustion engine. A survey on individual types of sensors used to measure pressure in combustion chamber is stated in the introductory part of the thesis. Another section deals with design of measuring chain. The main subject matter deals with compilation of the calculation program pertaining to the analysis of indicator diagram. Evaluation the results and procedures are included in the conclusion.
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Design Study of 1-piston CI Engine
Plička, Ladislav ; Drápal, Lubomír (referee) ; Svída, David (advisor)
Thesis deals with design study of 1-piston CI Engine for research purposes. The main purpose of this work is the design crankcase. Thesis includes background research conversant by various conceptions experimental motors. The numerice analysis of proposed crankcase in Pro ENGINEER MECHANICA (FME) software environment in also part of the work. Generally, the proposed solution of the experimental engine was focused on the universality and simplicity of the design.
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Powertrain design of a six-cylinder aircraft engine
Drápal, Lubomír ; Novotný, Pavel (referee) ; Píštěk, Václav (advisor)
The purpose of this thesis is design of a six-cylinder engine arrangement with given main parameters (bore, stroke, etc.), powertrain design, possibilities of firing order, balancing inertia forces and its moments, in case of need, balancing shaft design and calculation of torsion vibrations.
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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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