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Variable Intake manifold for 16V Engine
Konečný, Lukáš ; Franz, Rudolf (referee) ; Dundálek, Radim (advisor)
Aim of the diploma thesis is to design intake ducting with variable cross-section for 16V diesel engine consisting from divided intake manifold and divided ejector. Cross-section variability is ensured by a swirl flap placed in the divided ejector. Next aim of thesis is to provide drawing documentation for production of samples. For designing was used PTC Creo system and software GeomCaliper. Also was taken account of manufacturing of the parts with sand-casting, especially to guarantee trouble-free taking out of models from the moulds, and taking out of cores from core moulds, and also for machinability of some elements. Introduction of thesis is focused on diesel engine emissions and ways of their reduction.
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The High Pressure Fuel System Application for CI-engine
Ševčík, Ondřej ; Prokop, Aleš (referee) ; Dundálek, Radim (advisor)
This thesis focuses on the design of new high pressure injection system application on diesel engine. The design came from company Zetor’s demands. For this application was chosen system Common Rail supplied by company Bosch. Assignment was separated into several tasks. Research of suitable components for low pressure section, design of waste system and high pressure injection tubes design including injector clamping. Due to injectors used in this system was necessary to redesign cover for valves and even new system to lead wires from outside of the engine to injectors. Injector is attached by screw connection, which is composed from screw and clamping jaw. These parts are subjected to an analytic calculations. Clamping jaw of injector is even subjected to a FEM analysis, which focuses on fatigue life. Finally, the drawings were documented.
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Brno brownfields by the Svitava river
Flössler, Libor ; Ležatka,, Lukáš (referee) ; Májek, Jan (advisor)
Brownfield in Brno by the Svitava river. Proposal of conversion and completing of a part of the area in Brno – Husovice district, where you can find brownfield, as e.g. an old hall of former Zetor company. The goal is to design a functional district with respect to the original housing development. The territorial unit is designed so that it respects surrounding housing development and improves transportation situation. It complies with transportation connection to future reconstruction of Zbrojovka premises, for which a proposal is being designed. The main target is to create a comfortable place to live in and to cover basic needs of every person, to design interesting places for relaxation, cultural life, provide sports facilities and raise number of job opportunities in this area. The goal of this project is also to create a diverse place for living. Its meant for people from different social backgrounds and for people who use cars both with low frequency or who use them on a daily basis.
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Common-rail System for 4-cylinder CI-engine
Ošmera, Petr ; Svída, David (referee) ; Dundálek, Radim (advisor)
This diploma thesis with a view to „common rail system for 4-cylinder CI-engine“ deals with the application of modern injection system „common rail“ to already existing compression-ignition tractor engine. The diploma thesis treats of the most necessary adjustments related with the replacement of injection systems which was solved in the way of the minimum adjustments. This kind of solution deals with an economic aspect of the problem. The reconstruction contains the engineering design of development of high pressure components and the suitability of their placing on engine.The primary adjustment of the application of system „common rail“ for existing tractor engine confirmed the possibility of this reconstruction.
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The Possibilities of Displacement Increase of 4C Zetor Engine
Zloch, Jan ; Franz, Rudolf (referee) ; Dundálek, Radim (advisor)
Diploma thesis aims on mechanical design of new concept of Zetor UŘ III engine with displacement increase and solves calculations of main and pin hydrodynamic bearings of crankshaft. Creo 2 CAD software is used for preparing mechanical design of this new concept. For computation and analysis of hydrodynamic bearings multibody model of crankshaft mechanism is used with flexible FEM model of crankshaft for solving dynamics of mechanism and performing hydrodynamic analysis of bearings in FEV Virtual Engine. Results of this diploma thesis demonstrate the feasibility of new concept of engine and serve as a basis for next engineering tasks before realization of concept.
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Design of Concept of a Universal Agricultural Tractor
Baka, Michal ; Buganská, Tamara (referee) ; Křenek, Ladislav (advisor)
This bachelor's thesis is focused on the innovation of the Zetor Forterra agricultural tractor design. The thesis deals with market analysis, researching main market rivals, technical parameters and describes the possibilities of solution. The result of the work are improvements of the product that would make this tractor better in both ways, in functional and ergonomic terms.
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Brno brownfields by the Svitava river
Žáková, Dagmar ; Ležatka,, Lukáš (referee) ; Májek, Jan (advisor)
The theme of the diploma project is urban contemporary urban structure in the City of Brno. The main purpose of the selected brownfield is understanding the revitalisation of the city and gets the maximum benefit and to demonstrate the viability of the proposed development and its economic characteristics with the surrounding residential. Proposed is the public space, park and streets in this structure. The territory is located in the Brno-Husovice, near the river Svitava and surrounded by several decaying brownfield. My task was to find the right key to understand this whole area which includes the former object called motorárna - Zetor and find out the ideal solution for the future use of the complex and link it with existing structure to create functional urban organism. Currently, there is a chaotic and heterogeneous structure, which has a negative impact on the surrounding area, which is given by that the area and the surrounding buildings are isolated and hidden behind the unsightly walls. The territory is almost impenetrable, inside the area completely and the natural throughput to the river and partial recreation was supressed. With my project I was trying to create place, which will offer different city urban structure and activities for all day long. In such a place people will met and they will live, work and recreate there and use the river Svitava the right way.
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Hand tools for renovation purposes
Klika, Jiří ; Osička, Karel (referee) ; Kalivoda, Milan (advisor)
Diploma thesis deals with renovation of tractor Zetor 6911 with hand tool machining use. Theoretical part aims at historical evolution of machining and describes the hand tool machining methods. Renovation options include repair by a renovation company, yourself renovation and yourself renovation with cooperation in external company. Due to great renovation experience and technical knowledge is tractor chosen to be renovated by yourself. Complete machine renovation is very complex thus there are shown only specified examples of machine parts renovation. In the thesis there are in detail described renovation processes, including tools and hand devices. Final part includes results evaluation and costs comparation of renovation options.
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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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