Analýza systémů recirkulace výfukových plynů u spalovacích motorů

Abstract

The bachelor thesis deals with the analysis of systems for a retroactive line of exhaustion gasses with selected types of combustion engines. The main goal of the work is the finding and the consequent description of electromagnetic valve behavioral principle with diesel and petrol engines. The purpose of using the retroactive line of exhaustion gasses (recirculation of exhaustion gasses - EGR, AGR) is the reduction of nitrogen oxide in exhaustion gasses and thus environmental improvement. The theoretical part of the work describes the purpose and the function of individual parts for the retroactive line of exhaustion gasses. It is especially about the electromagnetic valve for the retroactive line of exhaustion gasses. The practical part deals with the analysis of the electromagnetic valve function (e.g. under the indication N18) which is based on measuring of duty cycle and the voltage level.