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Turbocharger Vibrations Generated by Internal Combustion Engine
Schulla, Radek ; Vacula, Jiří (referee) ; Novotný, Pavel (advisor)
The content of this master’s thesis is the issue of turbocharger vibrations due to excitation from the internal combustion engine. The theoretical part deals with the noise and vibrations generated by turbochargers and internal combustion engines. It also discusses the effect of vibration on the turbocharger and its individual parts, including the effect of the internal combustion engine. Subsequently, a turbocharger model is created in ADAMS software, the rotor response in turbocharger operating speeds to various excitation frequencies is analyzed and finally the safety of fluid bearings is evaluated and modifications to reduce vibrations are proposed.
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Combustion Engines with Gasoline Direct Injection
Schulla, Radek ; Řehák, Kamil (referee) ; Dundálek, Radim (advisor)
This bachelor thesis deals with the problematics of direct gasoline injection in petrol engines. It presents basic overview of pollutants from exhaust gases, functions of individual components of fuel system and their development. Next chapter explains the principle of operation, advantages and disadvantages compared to port fuel injection. The last section is focused on use of direct injection in the future.
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Turbocharger Vibrations Generated by Internal Combustion Engine
Schulla, Radek ; Vacula, Jiří (referee) ; Novotný, Pavel (advisor)
The content of this master’s thesis is the issue of turbocharger vibrations due to excitation from the internal combustion engine. The theoretical part deals with the noise and vibrations generated by turbochargers and internal combustion engines. It also discusses the effect of vibration on the turbocharger and its individual parts, including the effect of the internal combustion engine. Subsequently, a turbocharger model is created in ADAMS software, the rotor response in turbocharger operating speeds to various excitation frequencies is analyzed and finally the safety of fluid bearings is evaluated and modifications to reduce vibrations are proposed.
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|
Combustion Engines with Gasoline Direct Injection
Schulla, Radek ; Řehák, Kamil (referee) ; Dundálek, Radim (advisor)
This bachelor thesis deals with the problematics of direct gasoline injection in petrol engines. It presents basic overview of pollutants from exhaust gases, functions of individual components of fuel system and their development. Next chapter explains the principle of operation, advantages and disadvantages compared to port fuel injection. The last section is focused on use of direct injection in the future.
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