National Repository of Grey Literature 5 records found  Search took 0.00 seconds. 
Vliv seřízení palivové soustavy na spotřebu paliva a kouřivost motoru sledovaného traktoru po generální opravě.
HOFMAN, Marek
This thesis is focused on monitoring the parameters of a diesel combustion engine with different settings of the fuel system. In the introductory part of the work, the basic principle of work and a description of individual parts of fuel systems with an in-line injection pump are presented. The next part of the work describes the changes made in the fuel system settings, monitored engine parameters, and also presents the vehicles that were used during the measurements. In the last part of the work, the measured values are presented and evaluated.
Porovnání emisních norem výfukových plynů u vybrané skupiny traktorů
OPEKAR, Jiří
The aim in this thesis is to provide a comparison of smoke levels among John Deere 6 Family four-cylinder tractors. The comparison group consisted of 5 tractors, each with a different year of production. The aim is to ascertain if the systems provided in new John Deere tractors show higher efficiency in reducing emissions than those in older tractors. Further, the thesis deals with particular substances emitted by compression ignition engines and their influence on humans and the environment. Furthermore, basic information is provided about European and US standards as well as ways to reduce to the minimum these harmful substance emissions from compression ignition engines to the atmosphere. Diagnostic instruments for measuring exhaust gas emissions from compression ignition engines are described. Further, the thesis contains characteristics of tractors in the study group and results of measurements, arranged in tables and in graphs. Lastly, the results are evaluated and conclusions are made for practice.

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