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Abstract
The paper presents tractor working data and their engine conditions from economical and ecological point of view. Overlooked results presented in literature have a straight relation with reduction of tractor fuel consumption and unfriendly impact on the environment. The results of measurements show that for investigation of tractor performance quality during its working life, information collected in its microprocessors can be used. Investigation results of engine speed and torque aspects of different Deutz Fahr Agrotron tractor models with different working output are presented in the paper.
Investigation results show that a tractor on average worked from 37% to 52% of the total working hours at a high torque (>50% Mmax ) and at medium (1000–2000 rpm) and high (>2000 rpm) engine speed. The investigation results show that almost half of tractor working time is unreasonable. The paper presents big improvement possibilities for tractor operating technologies by using a wider range of engine power, decreasing fuel consumption and unfriendly impact on the environment.
Santrauka
Tirta traktoriu degalu sanaudu ir žalingo poveikio aplinkai mažinimo galimybes. Matavimu rezultatais pagrindžiama, kad traktoriu darbo kokybei per eksploatavimo laikotarpi tirti galima naudoti ju mikroprocesoriuose sukaupta informacija. Pateikiami ivairiu modeliu ir ivairaus išdirbio Deutz Fahr Agrotron traktoriu darbo kokybes (variklio sūkiu dažnio ir apkro‐vos aspektais) per eksploatavimo laikotarpi tyrimu rezultatai. Nustatyta, kad didele apkrova (>50 % Mmax) vidutiniais (1000–2000 min−1) ir dideliais (>2000 min−1) variklio sūkiais traktoriai vidutiniškai dirba 37–52 % eksploatacijos laiko‐tarpio, ir apie puse eksploatacijos trukmes traktoriu darbas neracionalus. Daroma išvada, kad visa traktoriu eksploatavimo laika galima tobulinti technologijas, parenkant tinkamesnius varikliu darbo režimus, mažinti degalu sanaudas ir žalinga poveiki aplinkai.
