Tekućinski hlađena glava eksperimentalnog motora Hatz 1D81

master's thesis

• Title (english): Liquid cooled cylinder head of an experimental engine Hatz 1D81
• Author: Petar Banožić
• Mentor: Rudolf Tomić (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2023-01-25, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; General Mechanical Engineering (Construction)

Abstract

U ovom radu je prikazana prerada eksperimentalne glave motora Hatz 1D81 s hlađenja zrakom na hlađenje tekućinom. Eksperimentalni motor se koristi u Laboratoriju za motore i vozila na Fakulteta strojarstva i brodogradnje u Zagrebu. U uvodnom dijelu rada objašnjene su vrste i funkcije glave motora, provedena je analiza prednosti i nedostataka hlađenja zrakom i hlađenja tekućinom, te su se dale osnovne informacije o izvornom i dosad prerađenom motoru Hatz 1D81. Nadalje su objašnjeni zahtjevi koje prerađena glava motora mora zadovoljiti i na temelju toga konstruirana su dva konceptna rješenja prerade glave. Koncepti su uspoređeni prema zadanim kriterijima i odabran je jedan koncept koji je detaljnije razvijen. Odabrani koncept omogućuje rad Ottovog motora s pretkomorom, Ottovog motora s unutarnjom pripremom smjese i Dieselovog motora s direktnim ubrizgavanjem goriva u prostor izgaranja. U drugom dijelu rada objašnjena je konstrukcijska razrada prerade glave koja uključuje strojnu obradu, izračun kritičnih brzina strujanja rashladne tekućine, analitički proračun za dijelove poput vijaka i limova za držače komponenti za pripremu i paljenje smjese. Također proveden je proračun naprezanja glave motora pomoću metode konačnih elemenata u programskom paketu Abaqus. Na kraju je izrađen 3D model prerađene glave motora i pripadajuća dokumentacija u programskom paketu SolidWorks.

Abstract (english)

This thesis presents the conversion of the experimental cylinder head Hatz 1D81 with air cooling to liquid cooling. The experimental engine is located in the Laboratory for engines and vehicles at the Faculty of Mechanical Engineering and Naval Architecture in Zagreb. In the introductory part of the thesis, the types and functions of the cylinder head were explained, the advantages and disadvantages of air cooling and liquid cooling were analyzed, and basic information was given about the original and so far modified Hatz 1D81 engine. Furthermore, the requirements that the modified cylinder head must meet were explained, and two concept solutions of the cylinder head were created based on this. Those concepts are then compared according to the given criteria and one is chosen for further development. In the second part of the work, the structural elaboration of the head processing is explained, which includes machining, calculation of critical coolant flow rates, analytical calculations for parts such as bolts and component holders for preparing and igniting the fuel mixture. The cylinder head stress calculation was also carried out using the finite element method in the software Abaqus. At the end, a 3D model of the modified cylinder head and technical documentation were created in the software SolidWorks.

• Keywords: Glava motora; hlađenje tekućinom; komponente za pripremu i paljenje smjese
• Keywords (english): Cylinder head; liquid cooling; components for preparing and igniting the fuel mixture
• Language: croatian
• URN:NBN: urn:nbn:hr:235:344056
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2023-01-23 11:30:34