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Line for manufacturing parts for car engine volume thermoforming
Smola, Jiří ; Humlíček, Jaroslav (referee) ; Omes, Jiří (advisor)
The aim of this diploma thesis is to design valve production line for combustion engines by volume forming with heat. The production of line will be 2 500 000-10 000 000 pieces per year. In the introduction of this thesis are described production technologies. Next part is about design of production lines and description of each machine for each technology. Then are made the basic calculations for designe for each machine.
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Wireless thermostat
Králíček, Martin ; Viščor, Ivo (referee) ; Kincl, Zdeněk (advisor)
The Master’s thesis discusses wireless thermostat for a control boiler. In order to complete the project we have to design and realise the whole project with software design. The system contains two units, a master control and a measurement of regulation units. The project initially talks about regulation of heating systems for family houses and larger buildings like schools and stores for example. Next, the project describes the control and regulation units and their potential extension for effective and economical operation. Both units are equipped with microcontrollers, which these control each of function. The communication between both units is provided by wireless interface in free radio band ISM. There is a user interface for the master control unit’s regulation process. The measurement and regulation unit has only the possibility to switch between manual and automatic control for regulation of heating system.
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Safety valve for presses
Macků, Ondřej ; Vostřel, Josef (referee) ; Škopán, Miroslav (advisor)
This diploma thesis deals with the design of the safety pneumatic valve. This valve is a part of the two-handed control system device which is used with mechanical press. Operational calculation of important parts and strength control of the most stressed construction part is done in this paper. Further the calculation defining leaking of compressed air from one of the chamber of valve is presented. The result of this calculation is the time dependence of the chambre pressure. Partial drawing documentation which contains production drawings of the main parts of valve and the drawing of the assembly is a part of the appendix.
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Simple agrocontroller
Pelikán, Michal ; Friedl, Martin (referee) ; Steinbauer, Miloslav (advisor)
Simple agrocontroller is a realization of control computer of spray machine in agriculture technique. Introduction describes the types of individual sprayers and their main differences. Hydraulic scheme displays the layout of regulators, ventils, hosepipes etc. Chapter Requirements defines needed functions and variables. Next chapter explains the structure of the layout of agrocontroller´s individual parts. Also defines required functions and features of these parts with real circuits and components and methods of gaining required values. Practical part show how printed circuits boards look like and what are features and properities of agrocontroller.
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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.
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Design of stand for atmospheric resistors testing
Kerek, Milan ; Hudec, Martin (referee) ; Houška, Pavel (advisor)
This master’s thesis deals with the design and manufacture of device for testing and verification of functionality of atmospheric resistors produced by IMI CCI Czech Republic. An atmospheric resistor, also called disk stack, is a stack of disks through which the medium flows and the system of labyrinths in disk stack causing a pressure reduction of medium. This thesis describe design of the mechanical parts of stand for atmospheric resistors, choice pneumatic circuit’s components, data acquisition hardware for measuring flow, inlet and outlet pressure, and temperature. The software was created in LabVIEW programming environment. In the end of this paper was done measurement in order to test functionality of test stand and software.
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Software for an automatic testing of valves
Mudroch, Andrej ; Havránek, Zdeněk (referee) ; Vágner, Martin (advisor)
In this paper the software design and implementation of automated control system for test device is discussed. The device will serve for tests of drinking water valves. As regards the control and software design, the important parts are identified and their functions are discussed in details. As part of software design, the basic system structure and it`s modules` functions are described using UML diagrams. Because of implementation reasons, ways of communication – such as M-BUS are described; as well as acquiring, processing and writing data to output. User interface created in LabVIEW is created as well. All mentioned application blocks were implemented. In addition, in this paper there is overview of testing methods for drinking water valves.
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Valve Exploiting Principle of the Side-Channel Turbine
Jandourek, Pavel ; Janalík, Jaroslav (referee) ; Varchola, Michal (referee) ; Pochylý, František (advisor)
The presented work deals with basic characteristics of the side-channel machines. The intention is to replace the pressure reducing valve by low-specific speed side-channel turbine. Thereby creating a kind of turbine valve using energy, which would otherwise be dissipated in the valve. Pressure reducing valves are the source of large hydraulic losses and their replacement is possible, because the same resistance characteristics side-channel turbine and a pressure reducing valve.
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