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Capacitive Ignition System
Benček, Kristián ; Bazala, Jiří (referee) ; Beran, Martin (advisor)
Bachelor thesis deals with the complex issue of ignition system, with a special emphasis put on the capacitive ignition. Due to the later needs the knowledge of the principles, on the basis of which the individual internal combustion piston engines work is the beginning of a work dedicated to the just distribution of these engines according to the basic criteria and elementary define different types of piston internal combustion engines and storylines, which in them take place. Subsequently is described in detail dismantled the issue of the kindle system as a whole but also the individual components of the ignition system and attention is required even to properly set the most suitable moment of ignition (pre-ignition) and the need to ensure sufficient ignition energy. Ignition systems are divided according to the historical development from the earliest induction of the classical ignition until after the state of the art fully electronic ignition system. The greatest emphasis is put on detailed analysis of the capacitive ignition, which is then compared with the conventional ignition. The last part is devoted to the management of the combustion event using the initialization of the burning. As an example, that the management of the combustion event using the initialization of the burning is nowadays a real, is referred to the engine Skyactive X, which should be in 2019, the commonly commercially used in the model of the Mazda 3.
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Design of Throttle body for SI engine
Jantač, František ; Bazala, Jiří (referee) ; Beran, Martin (advisor)
This master’s thesis deals with the design of the throttle body of the intake manifold of a spark-ignition engine with regards to minimizing throttle loses at full engine load. The first part of this thesis focuses on the elements of intake tract structure on contemporary combustion engine including their design solutions and the theory of flow. The thesis also describes the creation of the 3-D CAD model of intake manifold with a throttle body and the description of the CFD flow simulation with the evaluation of resul.
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