Utjecaj tehničkih preinaka na eksploatacijske značajke četverotaktnih motora

undergraduate thesis

• Title (english): Influence of Technical Modifications on Exploitation Features of Four Stroke Engines
• Author: Ivan Strunjak
• Mentor: Goran Zovak (mentor)
• Committee member: Ivo Jurić (predsjednik povjerenstva)
• Committee member: Željko Šarić (član povjerenstva)
• Committee member: Marijan Rajsman (član povjerenstva)
• Granter: University of Zagreb; Faculty of Transport and Traffic Sciences; (Division of Transport); (Department of Road Transport); Zagreb
• Defense date and country: 2015-09-15, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Traffic and Transport Technology; Road and Rail Transport

Abstract

Tehničkim preinakama na određenim elementima poboljšavaju se eksploatacijske značajke četverotaktnih motora. Neke od eksploatacijskih značajki koje su opisane u radu su: snaga motora, radni obujam, zakretni moment, potrošnja goriva i potrošnja ulja. Za povećanje učinkovitosti motora i poboljšanje eksploatacijskih značajki razmatrane su preinake na usisnom sustavu, bregastom vratilu, sustavu za rashlađivanje motora te preinake na ispušnom sustavu. Izvođenjem tehničkih preinaka na elementima motora najviše se utječe na snagu motora i potrošnju goriva. Povećanjem snage motora omogućuje se lakše svladavanje otpora koji se javljaju prilikom kretanja vozila što izravno utječe na smanjenje potrošnje goriva. Cilj završnog rada je objasniti kako će i u kojoj mjeri izvođenje određenih tehničkih preinaka utjecati na eksploatacijske značajke četverotaktnih motora. Problem je što se nepravilnom izvedbom preinaka može narušiti ispravnost cjelokupnog sustava. Da bi se ostvario pozitivan učinak na eksploatacijske značajke potrebno je detaljno istražiti utjecaj preinaka određenih elemenata na cjelokupan sustav.

Abstract (english)

Technical modifications on certain elements improve exploitation features of four-stroke engines. Some of the exploitation features described in final work are: horsepower, engine capacity, torque, fuel and oil consumption. To increase engine efficiency and to improve exploitation features the modifications which are considered in final work are modifications on car intake system, camshaft, engine cooling system and modifications on exhaust system. With implementation of technical modifications on engine elements the most impact is on engine horsepower and fuel consumption. Increasing engine horsepower there is much easier to overcome resistance which appear while driving which have direct impact on reducing fuel consumption. The main purpose of final work is to explain how and to what extent will implementation of certain technical modifications affect on exploitation features of fourstroke engines. The main problem is that with irregular implementation of modifications the accuracy of entire system could be disturbed. To achieve positive effect on exploitation features the detailed research of how modifications of certain elements impact on entire system is needed.

• Keywords: snaga motora; eksploatacijske značajke; ispušni sustav; četverotaktni motor; tehničke preinake
• Keywords (english): engine horsepower; exploitation features; exhaust system; four-stroke engine; technical modifications
• Language: croatian
• URN:NBN: urn:nbn:hr:119:599706
• Study programme: Title: Traffic and Transport; specializations in: Road Traffic and Transport, Railway Traffic and Transport, Water Traffic and Transport, Air Traffic and Transport, Postal Traffic, Information and Communication Traffic, Urban Traffic and Transport; Course: Road Traffic and Transport; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prometa (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prometa)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2015-09-30 12:48:51