20.500.12556/DKUM-68213 Analiza vpliva polnilnega sistema na zmogljivost pri zmanjšanju prostornine tgdi motorja Analysis of the influence of the charging system on the performance by downsizing tgdi engine V diplomskem delu je prikazana predelava modela motorja z direktnim vbrizgom goriva v valje (TGDI). Cilj je bil analiza možnosti za ohranitev zmogljivosti pri zmanjšanju prostornine s spremembo polnilnega sistema s turbino s fiksno geometrijo in obvodnim ventilom na turbino s spremenljivo geometrijo. V delu je opisano delovanje turbopolnilnika, TGDI motorja in simulacijski program AVL BOOSTTM. Predstavljena je predelava turbine in kontrola vseh parametrov modela v simulacijskem programu AVL BOOST. Pri analizi rezultatov je bila posebna pozornost namenjena ohranitvi tendence klenkanja in temperaturam v izpušnem sistemu. Raziskana je možnost uporabe Millerjevega cikla in zakasnitve vžiga. Millerjev cikel je smiselno uvesti v kombinaciji z mehansko gnanim kompresorjem. In the diploma work is presented modification of the turbocharged engine model with direct injection (TGDI). The objective was analysis of possibilities to conservation performance with downsizing and changes on turbine with fixed geometry and waste-gate to turbine with variable geometry. In work is described the operation of turbocharger, TGDI engine and simulation program AVL BOOSTTM. The turbine processing and control of all parameters in AVL BOOSTTM simulation program are presented. In the analysis of the results special focus was paid to maintaining knocking intensity and temperatures in the exhaust system. The possibilities of application of the miller cycle and retardation of the spark timing was investigated. Miller cycle is sensible to be introduced in combination with supercharger. MNZ TGDI numerična simulacija turbopolnilnik ICE TGDI numerical simulation turbocharger true true false [M. Potočnik] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2017-09-13 07:13:22 2017-10-04 11:55:48 2022-08-01 15:01:11 2019-07-11 16:45:40 2017 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.43.052(043.2) 21206294 URN:SI:UM:DK:F7JAA0UU VS_Potocnik_Matej_2017.pdf VS_Potocnik_Matej_2017.pdf 1 5EE904AB890B4F3A3EA3A05BFEF5DC17 e44ca6b5af58b6d4ba3e44032ab8630023846e33afec886ace732f2d5e91e2a4 661fab4e-7c0f-11eb-bb7a-00155d0001ca 20.500.12556/dkum/e0f7e3a7-973e-493a-bc49-d531a11bbfd2 https://dk.um.si/Dokument.php?lang=slv&id=119272 Fakulteta za strojništvo 0 0 0