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Powertrain of in-line four-cylinder spark ignition engine
Parchański, Martin ; Rauscher, Jaroslav (referee) ; Píštěk, Václav (advisor)
Objective baccalaureate work is count for engaged four - cylindrical petrol motor geometric, thermodynamic and operation parameters and subsequently rated funds make up real motor and strike a balance. Perform calculation thermodynamic cycle simulation power cycle and draw p- c diagram, assesment basic size piston and piston pin, assesment inertial force applied on piston group, calculation specific pressure and tension at piston pin, assesment basic proportions connecting rod, calculation tension in connecting-rod eye in consequence heating - up bronze chuck, assesment maximum tension in connecting-rod eye in consequence inertial force and from pressures gas and determine safety against yield strength and endurance strenght. In introduction work is schematic working principle gas engine motor and schmatic most frequent principle raising achievement. At the close are capitalized computing result.
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Control Systems of Gears Changing on Load in Tractors Gearboxes
Holub, Přemysl ; Svída, David (referee) ; Dundálek, Radim (advisor)
This bachelor thesis is interested in the overview of tractor’s gearboxes, which are changing on load. There are reasons, why it has to be costructed and there are requirements for it. There are also described PowerShifts, which allow us gear changing on load. After basic description of concrete gearbox, there is always some example of using in current tractors. In period named Mechanical gearboxes, wchich are changing partly on load there is more space for Zetor tractors and its gearboxes. In one of the last period there is important part about continuously variable transmissions where the driving speed is regulated steplessly. These gearboxes are considered to be modern technology of transfer engine torque.
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Powertrain of in-line five-cylinder spark ignition engine
Hájek, Daniel ; Rauscher, Jaroslav (referee) ; Píštěk, Václav (advisor)
Objective of bachelor’s thesis is, for noted geometric, thermodynamic and operation parameters cylindrical unit of five-cylinder spark-ignition engine, perform calculation of thermodynamic cycle, project basic proportion of piston group and for noted operation modes perform strength check of connecting-rod eye. Rated value verify, if corresponded with true value of spark-ignition engine. In preamble is stated basic use of spark-ignition engines, their operation principle and design concept. The bachelor’s thesis is consists from description of calculation and supplement, where is calculation done. The calculation is consists from three parts. The first part is calculation of thermodynamic cycle, in the second part are calculated forces reacting to piston group and third part is strength calculation and check of connecting-rod eye. In the last part is results evaluation of calculation, show a methods of calculation and a new trends spark-ignition engine of evolution.
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Crank mechanism of in-line three-cylinder diesel engine
Cetkovský, Martin ; Rauscher, Jaroslav (referee) ; Píštěk, Václav (advisor)
Objective bachelor’s thesis, which will be achived is, for scheduled elementary geometric, thermodynamic and operation parameters cylindrical unit of in-line three-cylinder diesel engine, perform calculation of thermodynamic cycle, design elementary dimensions of piston group and for schedule operation modes perform strength check of connecting-rod eye. Consequently rating value compare with value of real true diesel engine. In introduction is explained basic principle of diesel engine and their design concept. The bachelor’s thesis is consisted of description of calculation and supplement, where the calculation is done. The calculation is accomplished in three parts. Thermodynamic cycle is solved in the first part. Forces acting on piston group are solved in the second part and strength calculation and check of connecting-rod eye is solved in the third part. The end is focused on evaluation of calculation and recent solution of diesel engine.
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Piston for 96kW 4-stroke SI-engine
Josefíková, Kateřina ; Svída, David (referee) ; Dundálek, Radim (advisor)
This bachelor`s thesis will deal with calculating suggestion and structural solution piston for 4-stroke petrol engine. Next then determination basic dimensions engine and crak mechanism. On the basis empirical detail will determine basic dimensions piston. For designed kinematics crank mechanism will perform fort control critical sectin piston
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Piston for 85kW 4-stroke SI-engine
Petr, David ; Svída, David (referee) ; Dundálek, Radim (advisor)
This Bachelor work deals with the design of a piston for a 4-storke SI-engine.It is attention to main dimensions of the piston, to make it able to work in difficult conditions as exposed for th time his work. It also check deals with its calculations which make it solidity.
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Piston for 108kW 4-stroke SI-engine
Burýšek, Karel ; Dundálek, Radim (referee) ; Svída, David (advisor)
This Bachelor work is engaged in computing and constructional concept of a piston, intended for the four-stroke spark-ignition engine for private cars whith a view to main dimensions of a piston so that it should be able to work in conditions, which are determinated to, for all the period of it’s lifetime. We need to set strength calculations, which are inseparable part of the project procedure.
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Conrod for 73 kW 4-stroke SI-engine
Blanár, Luboš ; Dundálek, Radim (referee) ; Svída, David (advisor)
This bachelor’s thesis deals with computational and constructional design of conrod for four-stroke four-cylinder SI- engine for passenger vehicle. It is necessary to establish main dimensions of the engine and crank mechanism for this project. Beside the design of the main parameters of conrod, a solidity verification on the critical cross-sections is performed which consists of verification of the conrod eye, verification of the conrod body and the conrod head. The part of calculations is also a review of present conrods for four- stroke engines and their development.
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Multi-point Injection
Slavík, Tomáš ; Svída, David (referee) ; Dundálek, Radim (advisor)
The main objective of this Bachelor degree thesis is to describe and to bring closer the function of the multiple fuel injection system (nebo the function of fuel injections with multiple sets) in spark-ignition combustion engines, as well as to create a summary of individual components in fuel injection frameworks together with describing their functions and comparing them with other alternatives in fuel systems. In the conclusion, an elaboration on development trends in combustion engines will be provided.
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