|
|
Powertrain of in-line three-cylinder diesel engine
Riemel, Pavel ; Novotný, Pavel (referee) ; Píštěk, Václav (advisor)
Objective of bachelor’s thesis is for main predetermined geometric, thermodynamic and operation parameters cylindrical unit of line three-cylinder compression-ignition engine perform calculation of thermodynamic cycle, project basic dimensions of piston group and for noted operating modes perform strength check of con rod eye. Resulting values compare with comparable compression-ignition engine and verify its appropriate functionality. In preamble of work is mentioned compression-ignition engine, its basic usage, principle of function and description its main parts. The work is compound of two basic parts. The first contains description of calculation with related graphic and the second calculating supplement in which are calculations of thermodynamic cycle, forces reacting on piston group, strength calculation and control of con rod eye. At the close results of calculation are analysed.
|
|
|
Powertrain of in-line five-cylinder diesel engine
Zarambukas, Michalis ; Novotný, Pavel (referee) ; Píštěk, Václav (advisor)
The aim of this graduation theses is geometrical and thermodynamic calculation of determined five-cylinder diesel engine and calculation of operation parameters of cylindrical unit and then to compare them with real motor and strike the balance. Other step is to work out thermodynamic cycle and draw the result in p-V diagram. Then to calculate power, effecting on piston which includes proposal of basic proportion of piston and wrist pin, and it follows weigh of piston group and maximal quickening and inertial force of piston group, calculation of specific pressure and pressure in wrist pin. Other purpose is to determine basic proportion for piston rod and to focus on material qualities of con rod eye and bronze case, determination of maximal pressure due to inertial forces comming from gas pressure and security against possible slip and tiredness. At the beginning is described diesel engine from its foundation, its activity to its use in company. At the close are reviewed the results of the calculations.
|
|
|
Powertrain of experimental single-cylinder spark ignition engine
Laštovica, Karel ; Novotný, Pavel (referee) ; Píštěk, Václav (advisor)
These bachelor’s thesis deals with experimental single-cylinder engine, calculation of his thermodynamic cycle, design of a piston, design of a can rod eye and his strength check. In introduction there is states function principle of combustion engine and their basic division and application. The bachelor’s thesis consists of five parts: scheduled initiatory parameters, calculation of thermodynamic cycle, calculation of the piston group weight, calculation of forces reacting to piston group and strength check of con rod eye. In the conclusion results of calculation are evaluated.
|
|
|
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.
|
|
|
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.
|
|
|
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.
|
|
|
Powertrain of experimental single-cylinder spark ignition engine
Číp, Tomáš ; Rauscher, Jaroslav (referee) ; Píštěk, Václav (advisor)
Objective of bachelor’s thesis is, for noted geometric, thermodynamic and operation parameters cylindrical unit of experimental single-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. In preamble is stated basic use of spark -ignition engines, their operation principle and basic fisson. The bachelor’s thesis is consists from of calculation, which is continuously described.The calculation is consists from four parts. The first part is calculation of thermodynamic cycle, in the second part are calculated concept piston group, in next part are calculated forces reacting to piston group and fourth part is strength calculation and check of connecting-rod eye. In the last part is results evaluation of calculation.
|
|
|
Crank mechanism of in-line four-cylinder spark ignition engine
Marek, Petr ; Rauscher, Jaroslav (referee) ; Píštěk, Václav (advisor)
Objective of this bachelor’s thesis is for given geometric, thermodynamic and operation parameters cylindrical unit of in-line four-cylinder spark ignition engine perform calculation of thermodynamic cycle, project basic proportion of piston group and for given operation modes perform strength check of connecting-rod eye. In the introduction is described ordinary use of spark ignition engines, several details of history of their evolution and present most widly used construction. Major text of bachelor’s thesis attend to four main chapters: description of thermodynamic cycle, calculation of forces reacting to piston, strength calculation and check of piston pin and of connecting-rod eye. Supplement consists of accomplishment of these calculations and a few of graphs. In the conclusion is evaluation of performed calculations and there are mentioned technological directions of present evolution of gas-engine.
|
|
|
Piston group of in-line four-cylinder gasoline engine
Král, Stanislav ; Novotný, Pavel (referee) ; Píštěk, Václav (advisor)
The aim of the thesis, it is strength control group of ordinary four-cylinder piston gasoline engine. In the first part of the specified thermodynamic, geometric and operational parameters of the motor piston group will calculate the thermodynamic cycle. Furthermore, we see the effects of force acting on the piston group in the most strained moments of the cycle. For the reconstructed load piston group perform voltage control in piston pin and strength control rods of the eye. In conclusion, we compare the calculated values of permissible stress values and find a design safety factor for the part.
|
|
|
Sledování utužení půdy na daném pozemku
VONDRÁČEK, Jan
In the thesis is discussed problem with soil compaction in the agriculture in the Czech Republic, causing of aspects of this phenomenon as well as a method suppressing this phenomenon and prevent its. In this work are also mentioned machinery and equipment and their possibilities editing to reduce the compression of the soil. There are also the results of field measurements, which were carried out during the season on land that has been processed by different technology in several of its parts and other measurements carried out occasionally in the Czech Republic to observe the state of soil compaction.
|
guest ::
