National Repository of Grey Literature 42 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
Increasing Performance of Honda 1.6 Engine
Opluštil, Vít ; Beran, Martin (referee) ; Svída, David (advisor)
The aim of this thesis is the description and performance of four-stroke internal combustion engine, an analysis of the options and finding the most effective treatment for a given engine type. In the next section the author deals with computational design turbochargers, chosen for the turbocharged engine modification. Next chapter of work is a design calculation for the choice of the turbocharger, is then constructed a mathematical model of a given engine in the Lotus Engine Simulation software and final results are presented.
Performance optimisation of turbocharged engine for Formula Student
Špičák, Milan ; Janoušek, Michal (referee) ; Svída, David (advisor)
Diplomová práce je zaměřena na výběr pohonné jednotky pro Formuli Student, sestavení spolehlivého výpočtového modelu za využití pokročilého testování. Dále se zaměřuje na přípravu vhodných podmínek pro testování, samotné testování a následnou kalibraci řídicí jednotky pro validaci simulací a také pro efektivní a spolehlivé řízení motoru v náročných závodních podmínkách. Je zároveň součástí komplexního projektu, který se zabývá celkovým vývojem přeplňovaného jednoválcového motoru pro tým TU Brno Racing.
Fitting and Extrapolation of Turbocharger Turbine Maps
Vondrák, Adam ; Babák, Martin (referee) ; Novotný, Pavel (referee) ; Štětina, Josef (advisor)
Modelování turbínových charakteristik je nutným předpokladem pro detailní simulaci výměny náplně válce turbodmychadlem přeplňovaných spalovacích motorů. Kromě toho je možnost stanovení účinnosti a průtokové kapacity v libovolných pracovních bodech klíčová pro porovnání různých turbínových stupňů. Cílem této práce je předložit jednotnou metodu pro oba účely tak, aby bylo možné provést porovnání použitím přesně stejných modelů turbín jako při následné simulaci pracovního oběhu motoru. Zdrojem vstupních dat je obvykle měření na plynové zkušebně, které však umožňuje zachycení pouze omezeného pracovního rozsahu turbíny. V této práci jsou navrženy metody umožňující zvýšení věrohodnosti a robustnosti extrapolace turbínových charakteristik, přičemž optimalizace je využita k určení takových parametrů hledaných funkcí, které vedou k nejlepší shodě mezi modelem a vstupními daty.
Turbocharging of combustion engines
Kadleček, Jiří ; Beran, Martin (referee) ; Vančura, Jan (advisor)
This bachelor thesis presents the construction and function of the main types of mechanic turbocharging systems. Furthermore, it contains the analysis of regulating elements and the last chapter involves also the description of the newest trends in the field of turbocharging.
Multistage turbocharging of diesel engine
Vichr, Tomáš ; Beran, Martin (referee) ; Svída, David (advisor)
This master thesis summarizes the basic knowledge in the field of turbocharging of internal combustion piston engines. It also focuses on the analysis of some properties of multistage turbocharging, especially for diesel engines. Using analytical relationships, a model in the form of a web application has been created, which describes the cooperation of a turbocharger or turbochargers with an internal combustion engine. With the help of this model, some two-stage supercharging options for the selected engine have been then proposed.
Running and Maintenance of Vehicles with Supercharged Engine
Vertaľ, Peter ; Krejčíř, Pavel (referee) ; Vémola, Aleš (advisor)
The goal is to measure the temperature of the turbocharger after engine shutdown.Measurements wants to show the need to keep a car engine to cool after a heavier burden on the idle speed. It would also prevent possible disruptions turbocharger. The paper also deals with the problems, construction and basic principles of operation of the turbocharger
Piston for 225 kW 4-stroke SI-engine
Bauza, Erik ; Dundálek, Radim (referee) ; Svída, David (advisor)
Contents of this work is processing of computational suggestion and construction solution of piston for four- stroke SI turbocharged piston with power of 225 kW. This work is point to suggestion of basic dimension of engine, crankshaft mechanism and basic dimensions of piston. Designed piston is controled in critical sections. In this work is also shortly describe last tendency on development and construction of pistons, also a shortly describe of single components of designed engine.
Modification of Naturally Aspirated Engine to Turbocharged Engine
Fajkus, Martin ; Beran, Martin (referee) ; Svída, David (advisor)
Aim of this diploma thesis is the modification of naturally aspirated engine for Formula Student competition to turbocharged version. Modification which were made are based on the issue knowledge and calculations. The input data were obtained from 3D scanning and measurements, at the school laboratories. All 3D models were created in Pro / Engineer. Input data for the computional analysis was developed in Lotus Engine Simulation. Computational analysis was performed in ANSYS by finite element method. Calculations had to simulate a piston behavior at the critical situations where the engine is under the maxiumum load.
CFD simulation of pressure pulse propagation in twin scroll volute with shifted divider
Dohnal, Jiří ; Tuhovčák, Ján (referee) ; Katolický, Jaroslav (advisor)
The main subject of this Master’s thesis is a review of turbo-charger efficiency with split turbine channel in the process of various types of supercharging and also with diverse designs of so called divider of turbine channels. I used CFD simulation utilizing Star CCM+ software. A model of turbocharger and mesured data came from commercial model. Efficiency is evaluated on the basis of performance distributed to the turbine with similar input conditions for both steady and unsteady process. For better understanding of this subject I also included theoretical basics of supercharging of combustion engines and fluid dynamics.
Developments in an internal combustion engine supercharging
Bazala, Jiří ; Rasch, František (referee) ; Drápal, Lubomír (advisor)
This bachelor’s dissertation deals with the topic of turbocharging. It examines various types of turbocharging and a selection of turbocharged engines. In one chapter there is a comparison between a modern turbocharged engine a normally aspirated engine, and also some interesting facts about turbocharging technology.

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