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master's thesis
Utjecaj upravljanja ventilima na radne karakteristike motora
2024. urn:nbn:hr:190:877028
Bakiš, Ivan
University of Rijeka
Faculty of Engineering

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Bakiš, I. (2024). Utjecaj upravljanja ventilima na radne karakteristike motora (Master's thesis). Rijeka: University of Rijeka, Faculty of Engineering. Retrieved from https://urn.nsk.hr/urn:nbn:hr:190:877028

Bakiš, Ivan. "Utjecaj upravljanja ventilima na radne karakteristike motora." Master's thesis, University of Rijeka, Faculty of Engineering, 2024. https://urn.nsk.hr/urn:nbn:hr:190:877028

Bakiš, Ivan. "Utjecaj upravljanja ventilima na radne karakteristike motora." Master's thesis, University of Rijeka, Faculty of Engineering, 2024. https://urn.nsk.hr/urn:nbn:hr:190:877028

Bakiš, I. (2024). 'Utjecaj upravljanja ventilima na radne karakteristike motora', Master's thesis, University of Rijeka, Faculty of Engineering, accessed 12 March 2025, https://urn.nsk.hr/urn:nbn:hr:190:877028

Bakiš I. Utjecaj upravljanja ventilima na radne karakteristike motora [Master's thesis]. Rijeka: University of Rijeka, Faculty of Engineering; 2024 [cited 2025 March 12] Available at: https://urn.nsk.hr/urn:nbn:hr:190:877028

I. Bakiš, "Utjecaj upravljanja ventilima na radne karakteristike motora", Master's thesis, University of Rijeka, Faculty of Engineering, Rijeka, 2024. Available at: https://urn.nsk.hr/urn:nbn:hr:190:877028

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Metadata
TitleUtjecaj upravljanja ventilima na radne karakteristike motora
Title (english)The valve management influence on engine operating characteristics
AuthorIvan Bakiš
MentorVedran Mrzljak (mentor)
MentorVedran Medica-Viola (komentor)
Committee memberVedran Mrzljak (predsjednik povjerenstva)
Committee memberTomislav Mrakovčić (član povjerenstva)
Committee memberBoris Delač (član povjerenstva)
GranterUniversity of Rijeka
Faculty of Engineering
Rijeka
Defense date and country2024-09-19, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Marine Mechanical Engineering
Abstract
U ovom diplomskom radu ispitivano je kako različite konfiguracije i promjeri ventila utječu na performanse motora. Konfiguracije koje su se ispitivale su motori s dva, tri, četiri i pet ventila po cilindru pri čemu se za svaku konfiguraciju odredio maksimalni mogući promjer ventila. Prvi dio rada obuhvatio je pregled razmatranih konfiguracija ventila, gdje su prikazane njihove prednosti i nedostaci u pogledu protoka zraka, snage motora, složenosti te troškova proizvodnje. Kako za komercijalne motore s unutarnjim izgaranjem konfiguracija s četiri ventila po cilindru daje optimalan kompromis što se tiče performansi i složenosti te cijene proizvodnje, za istu se analiziralo varijabilno upravljanje ventilima odnosno fazni pomak ventila. Eksperimentalni dio rada uključio je simulacije baznog motora, te motora s različitim konfiguracijama ventila u programu Lotus Engineering Software. Također je dana usporedba dobivenih rezultata te prijedlog optimalnog modela.
Abstract (english)
In this thesis, the impact of different valve configurations and diameters on the engine performance was examined. The configurations investigated includes engines with two, three, four, and five valves per cylinder, with the maximum possible valve diameter determined for each configuration. The first part of the thesis covered a review of the considered valve configurations, highlighting their advantages and disadvantages in terms of airflow, engine power, complexity, and production costs. Since the four-valve configuration offers an optimal compromise for commercial internal combustion engines in terms of performance, complexity, and production costs, variable valve timing or phase shift was implemented for this configuration. The experimental part of the work includes simulations of the base engine and engines with different valve configurations using Lotus Engineering Software. A comparison of the obtained results was also provided, along with a proposal for the optimal model.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:190:877028
Study programmeTitle: Mechanical Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence Attribution 4.0 International (CC BY 4.0) icon
Created on2024-09-15 06:35:51