Abstract

The high awareness of intensification and frequency of smog phenomenon all over the world in XXI age makes for detailed analyses of the reasons of its formation and prevention. The governments of the developed countries and conscious of real hazards, including many European countries, aim to restrict the emission of harmful gases. In literature, we can find the discussions on the influence of this phenomenon on the health and life of inhabitants of contaminated areas. Some elaborations of prognostic models, descriptions of pollution sources, the manner of their restriction, and the analysis of causal-consecutive correlation are also popular. The influence of pollutions resulting from the operation of vehicles, planes, and the industry are well described. However, every machine and device which is driven with a combustion engine has the effect on the general level of anthropogenic pollutions. These drives are subject of different regulations limiting their emission for service conditions and applications. One of the groups of such machines described in European and American regulations is non-road mobile machinery. The aim of this paper is the presentation of the problem of weak analysis and application of engineering and technological tools for machinery drive emission, despite of many publications on hazards and problems of emission. These machines have the influence on both the increase of global contamination and the machine users. The regulations of the European Union take into consideration the generated hazards and restrict the emission of machine exhaust gases by approval tests—these regulations are continually improved, and the effects of these works are new emission limits in 2019. However, these activities seem to be liberal as opposed to limits of the emission for passenger and goods vehicles where the technological development of the construction is greater and the regulations are the most rigorous. During the analysis of the development of non-road mobile machinery in the correlation with automotive vehicles, we can indicate engineering and technological solutions which are limiting the emission of non-road mobile machinery, but which are not applied. Due to liberal regulations for this group of machinery, the producers do not apply innovative solutions which can be found in road vehicles. The paper presents the synthetic review of existing EU regulations concerning limits of the emission of harmful exhaust gases which are generated by spark-ignition combustion engines of non-road mobile machinery. The authors show the divergences between the limits of the emission of harmful exhaust gases generated by road vehicles and non-road mobile machinery (boats and railway engines are not taken into account). The authors present the directions of the development of the combustion process control and systems limiting the emission of harmful exhaust gases. High innovative automotive industry was indicated as the direction of the development for limiting the influence of the emission on the environment by non-road mobile machinery.

Highlights

  • During last decades, the emission of air pollution in Europe was considerably decreased (Lackovičová et al 2013; Lacressonnière et al 2017)

  • The aim of this paper is to present the significant differences between the rules for combustion engines of non-road mobile machinery and automotive vehicles

  • The directives related to the emission limits of harmful compounds in exhaust gases for non-road mobile machinery with spark ignition engine are more liberal than the directives related to passenger or goods vehicles

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Summary

Introduction

The emission of air pollution in Europe was considerably decreased (Lackovičová et al 2013; Lacressonnière et al 2017). The present development of control technology of combustion processes and limiting systems of the emission of toxic compounds in exhaust gases which are applied in automotive industry allow to restrict considerably the influence of this type of propulsions on the environment. European Union standards concerning the emission for combustion engines with spark ignition below 19 kW applied in non-road mobile machinery were implemented in 2002. Homologation tests of combustion engines applied for drives of non-road mobile machinery are obligatory in the European Union countries, and these tests are orientated on the emission of toxic compounds of exhaust gases. – part 5: Test fuels (ISO 8178-5 2015) – part 6: Report of measuring results and test

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