ACTA Scientiarum Polonorum - Silvarum Colendarum Ratio et Industria Lignaria
Issue 5 (2) 2006 pp. 147-157
authors: Krzysztof Wójcik, Jan Grzegorz Skarżyński
title:EMISSION AND COMPOSITION OF EXHAUST GASES BY NEW CHAIN SAWS PRODUCED BY HUSQVARNA AND STIHL
keywords: chain saws, exhaust gases, two-stroke engine, gas emission, exhaust gas composition
abstract: Both the composition and harmfulness of exhaust gases emitted by the twostroke engine of new Husqvarna and Stihl chain saws have been discussed in the paper. The research carried out on six chain saws (three chain saws from each of the manufacturers), with a different engine capacity, at several stages of work.. Moreover, possibilities of reduction and limitation of fumes emission are presented. As a result of the analysis of the research it has been stated that: the swept capacity of the two-stroke engine of a chain saw does not influence the size of the produced exhaust gases, and differences between the models and firms are not large. The work of a chain saw in the idle running causes a considerably higher emission of hydrocarbons (HC) than at other stages of work. And thus its work in low gear should be limited to the indispensable minimum; an increase of oxygen (O2for citation: Wójcik K., Skarżyński J.G., 2006. EMISSION AND COMPOSITION OF EXHAUST GASES BY NEW CHAIN SAWS PRODUCED BY HUSQVARNA AND STIHL. Acta Sci.Pol., Silvarum Colendarum Ratio et Industria Lignaria 5(2), 147-157