Analiza rada Ottovog motora primjenom potpuno varijabilnog ventilskog razvoda

Jagušt, Eugen (2018) Analiza rada Ottovog motora primjenom potpuno varijabilnog ventilskog razvoda. = Analysis of spark ignition engine operation with fully variable valve timing system. Undergraduate thesis , Sveučilište u Zagrebu, Fakultet strojarstva i brodogradnje, UNSPECIFIED. Mentor: Sjerić, Momir.

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Abstract (Croatian)

Kako bi pratili sve razvoj motora s unutarnjim izgaranjem, proizvođači traže nova inovativna rješenja za poboljšanje značajki rada motora. U zadnje vrijeme puno se pažnje posvećuje optimizaciji rada motora, što možemo vidjeti kroz nove trendove poput downsizing-a. Jedan od smjerova poboljšanja značajki motora s unutarnjim izgaranjem je primjena potpuno varijabilnih ventilskih razvodnih sustava. Analizom rada motora s primijenjenim potpuno varijabilnim ventilskim razvodom prikazali smo moguća poboljšanja značajki rada motora. Ovaj rad je samo zagrebao površinu u pogledu analize primjene potpuno varijabilnih ventilskih razvoda jer su analizirana samo puna opterećenja, iako bi bilo zanimljivo analizirati poboljšanja značajki motora na pri djelomičnom opterećenju. U svrhu ovog završnog rada provedene su simulacije u programskom paketu AVL Boost™ na četverotaktnom Ottovom motoru. Simulacije su izvršene za različite brzine vrtnje motora a te brzine su: 1000, 1500, 1600, 2000, 2200, 2500 i 3000 min-1.

Abstract

In order to follow the development of the internal combustion engine, manufacturers are searching for new and innovative solutions to upgrade the performance of the engine. Lately a lot of attention is dedicated to the optimization of the engine processes. What can be seen thru new trends such as downsizing. One of the ways for improving the internal combustion engine is implementing a Fully Variable Valve Actuation systems. Analysis of the engine process with implemented Fully Variable Valve Actuation shows possible improvements of the engine performance. This Bachelor’s thesis has just scratched the surface in the direction of analysing the implementation of the Fully Variable Valve Actuation systems because it just analysed the full load of the engine, even though it would be interesting to analyse the improvements on the engine performance on partial loads. For purpose of this Bachelor’s thesis the simulations were conducted in the AVL Boost™ simulation program, on the four stroke Otto engine. Simulations were conducted for different rotational speeds of the engine, and those are: 1000, 1500, 1600, 2000, 2200, 2500 and 3000 min-1.

Item Type: Thesis (Undergraduate thesis)
Uncontrolled Keywords: Ottov motor; simulacije radnog ciklusa; potpuno varijabilni ventilski razvod; AVL Boost™.
Keywords (Croatian): Spark Ignition Engine; Cycle-simulations; Fully Variable Valve Actuation; AVL Boost™.
Subjects: TECHNICAL SCIENCE > Mechanical Engineering
Divisions: 400 Department of IC Engines and Mechanical Handling Equipment > 410 Chair of IC Engines and Motor Vehicles
Date Deposited: 21 Sep 2018 11:11
Last Modified: 29 Nov 2019 15:26
URI: http://repozitorij.fsb.hr/id/eprint/8794

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