|
|
Design of Gear Timing Mechanism for SI Engine
Štábl, Tomáš ; Beran, Martin (referee) ; Svída, David (advisor)
Tomáš ŠTÁBL Design of Gear Timing Mechanism for SI Engine MT, IAE, 2009, 62 pp., 27 fig. This master thesis is concerning the valve train proposal of the spark ignition engine for sports purposes. Antecedent to the actual proposal is the division and retrieval of the modern valve trains, the valve train acting forces description, division and description of the individual valve-lift curve parts , valve springs and the dynamic models of the valve train. In the thesis there are designed the valve lift curves with the continuous course of acceleration, valve springs and valve springs natural oscillations damper for engine Honda CBR 929RR. The dynamic analysis of valve train approach is performed.
|
|
|
Belt Drive for Valvetrains
Tomanec, Filip ; Rasch, František (referee) ; Novotný, Pavel (advisor)
This bachelor’s thesis deals with belt drive of valve timing mechanisms, estimation of their vanteges or disavantages. In the first section treat of drive for valvetrains generally, summary description of different drives types and comparison their features and right application. In the second section deals specially with toothed belt systems – construction of toothed belts, their types, marking, most frequent failure, tension and guide. In the last section is showed real solution of timming belt drive.
|
|
|
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.
|
|
|
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.
|
|
|
Uncoventional Valve Control
Janoušek, Michal ; Svída, David (referee) ; Dundálek, Radim (advisor)
This bachelor thesis describes some non-traditional systems of valve control in four-stroke in four-stroke engine. The first part is about basic valve train arrangement and their use. Further work continues the basic description of selected non-traditional systems of control valves, these are the systems used both in ordinary mass-production, and the racing sport. The thesis included a brief historical development of individual systems and their application in practice use.
|
|
|
Valvetrains of four stroke combustion engines
Přeslička, Jaroslav ; Novotný, Pavel (referee) ; Píštěk, Václav (advisor)
The thesis deals with technical solutions of four stroke piston engines valvetrains, their advantages and disadvantages. First it describes four stroke engine working cycle and outlines the problems of valvetrain timing. Then follows the description of valve design, camshafts, types of cams and valve lift course. Another part of the text occupies with SV, OHV, OHC and unconventional valvetrains. The following part is focused to the ways of camshaft drive. The last part is engaged in variable valvetrains. At the end there is indicated the future of combustion engines valvetrains.
|
|
|
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.
|
|
|
Formula 1 Engines
Kaňa, Roman ; Ramík, Pavel (referee) ; Dundálek, Radim (advisor)
This bachelor thesis describes construction of some functional parts of the Formula 1 engine. In the first part I focused on crankshafts, connecting rods, pistons, valve gears and compared them with serial produced engines. The work further continues with the introduction of some unconventional solutions used on Formula 1 engines and comparison of the characteristics of known power units.
|
|
|
General Solution of Valvetrain Mechanical Losses
Mynařík, Aleš ; Maršálek, Ondřej (referee) ; Novotný, Pavel (advisor)
This master's thesis deals with the determination of mechanical losses in the valvetrain of the combustion engine. It describes the computational and experimental methods of determining the mechanical losses of valve mechanism. The practical part of the thesis focuses on the programing of structures in Matlab. This application calculates the values of mechanical losses of valvetrain and displays their graphical representation. This program is used for computing the mechanical losses of the selected real engine.
|
|
|
Chain Drive for Valvetrains
Vodička, Richard ; Píštěk, Václav (referee) ; Novotný, Pavel (advisor)
The objective of this bachelor‘s thesis is obtaining the general review about the way of driving valvetrains. Introduction is devoting the driving of distributive mechanism of combustion engines . The text of bachelor‘s thesis is splitted on three parts. The first part is explaining the principle of functioning enginetrain. Briefly are described individual assembling of ventil distributor of engines and its distinction depending on the way of its drive. The main attention is devoted to the chain drive of valvetrain, i.e. distinction of types chain drive, which are necessary for its correct functioning. And also, are described the main parts of valvetrain of the engine and the other possibilities of its driving. The second part of bachelor‘s thesis is comparising positives and negatives of chain drives of valvetrains with the othe one’s. In the third part of bachelor‘s thesis are presented the examples of application of the chain drives in the valvetrains in the four wheel drives machines, cars and motorcycles. In the conclusions is specified the contribution of the chain drive of valvetrains and evaluation of bachelor‘s thesis.
|
guest ::
