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Early Warning System for recording outages from the assembly line
Makovičková, Lucie ; Zuth, Daniel (referee) ; Maradová, Karla (advisor)
The bachelor's thesis on a topic “Early Warning System for recording outages from the assembly line“ aims to update assembly line outages, thanks to what the work gained a good motive to present the Early Warning System process in practice, in the company Bosch Diesel s.r.o. Jihlava, where this update of assembly line outages takes place. The work first introduces the high-pressure pumps and their assembly lines, which are the most connected to the system. Then the basic elements of the system are described, and the Power BI system is defined. The practical part explains way of collecting the necessary data for outages updating and how the Early Warning System gets the information about outage during the installation of a high-pressure pump on the assembly line to the higher responsible persons. Subsequently, thanks to the obtained statistical overview of all outages and to the performed visualizations in the Power BI system, the knowledge is evaluated.
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Phosphate conversion coatings
Ševčíková, Barbora ; Trčka,, Josef (referee) ; Zmrzlý, Martin (advisor)
The main objective of the master’s thesis is to study the influence of phosphate coating structure on the mechanical properties of screw connection. The theoretical part describes the conventional phosphating process and it is followed by an analysis of current knowledge of phosphating technology. Experiments are carried out on screw valves mounted to a high pressure diesel pump by Bosch Diesel s.r.o., made of unalloyed carbon steel. To investigate the effect of the structure on the connection sealing, twelve kinds of phosphate coatings varying in one process parameter were prepared. The monitored parameters determining the phosphate structure are – type of phosphate and activation bath, its temperature and concentration and time of immersion. The sealing connection is examined during simulated assembly process by angle controlled tightening while measuring torque and permanent material deformation. Prepared layers are characterized by determination of weight per unit area and their structure observed by electron microscope.
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Design of Device for O-rings Fitting on Overflow Valve of Injection Pump
Matula, David ; Beran, Martin (referee) ; Ramík, Pavel (advisor)
The thesis deals with the problem of threading o-rings on the overflow valve of the CP4 injection pump. The thesis was prepared for the company Bosch Diesel s.r.o. in Jihlava. In the thesis, first of all, an introduction of the company and their products is given. In the next part of the thesis, an analysis of the current state of the workplace is made. This is followed by market research in the field of automated o-ring threading. This research served as inspiration for the design of the threading head. The constructed head was manufactured and tested at the test site. After testing the head, several variations of the o-ring threading station were developed. A multi-criteria method was used to select the most suitable variant. A design concept of the workstation was developed for the winning variant. The resulting concept was evaluated from an economic and technical point of view.
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Early Warning System for recording outages from the assembly line
Makovičková, Lucie ; Zuth, Daniel (referee) ; Maradová, Karla (advisor)
The bachelor's thesis on a topic “Early Warning System for recording outages from the assembly line“ aims to update assembly line outages, thanks to what the work gained a good motive to present the Early Warning System process in practice, in the company Bosch Diesel s.r.o. Jihlava, where this update of assembly line outages takes place. The work first introduces the high-pressure pumps and their assembly lines, which are the most connected to the system. Then the basic elements of the system are described, and the Power BI system is defined. The practical part explains way of collecting the necessary data for outages updating and how the Early Warning System gets the information about outage during the installation of a high-pressure pump on the assembly line to the higher responsible persons. Subsequently, thanks to the obtained statistical overview of all outages and to the performed visualizations in the Power BI system, the knowledge is evaluated.
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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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Hydraulic part of plunger pump adjustment for higher pressures
Dvořák, Petr ; Klas, Roman (referee) ; Habán, Vladimír (advisor)
First part of the master thesis is about displacement pump. Second part is about power plunger pumps. In the third part are equations for power plunger pumps. In the last part the strength calculation of the proposed hydraulic part of the plunger pump was performed using the finite element method in ANSYS. The screw fatigue life is also calculated here. At the end of this section, ANSYS Fluent flow calculation is performed in the suction valve area.
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Measurement Panel Common-rail
HART, Petr
This diploma thesis deals with practical measurements on the fuel system of the diesel engine system Common rail. The thesis is divided into tvo basic parts. The first part is theoretical and has the task to familiarize the reader with the history of the diesel injection until after the system Common-rail, where the principle and part of this system will be explained. The second part is focused on the possibility of practical measurement to the fuel system Common-rail on the tutorial panel. Measurement tasks for students will be created on the basis of practical measurements, including the sample assignment, and the elaboration of the form of the protocol. Verification tasks on students and the evaluation of the thesis work will be carried out in the conclusion.
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