The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The paper presents the causes and effects of corrosion, destructively affecting the technical condition and operational reliability of injectors used in Common Rail supply systems. In addition, the analysis was made regarding damage to compression-ignition (diesel) engines with common-rail supply systems occurring in the operation of injectors caused by external and internal operating factors. Studies...
Excessive soil compaction caused by agricultural tractors during plant production processes results in a considerable risk of reduced crop yields, increased erosion processes, greater input of energy in tillage and increased CO2 emission to the atmosphere. As a consequence we observe a threat of degradation in Luvisols found over a considerable area in the Polish Plain and the North European Plain...
The article identifies and analyses selected examples of cavitation erosion occurring in farm tractor engines and their systems at different mileages. The analysis has been carried out on the basis of known theoretical rudiments of this phenomenon. The paper presents photographs from maintenance work selected by the authors, which illustrate the discussed matter graphically. There is a discussion...
The increase of green infrastructure in urban areas, increases the demand for machines implementing agriculture processes. For such procedures mobile machines with internal combustion unit are most used. While working, these drives are exposed to contamination resulting from the crushing process gets through on both the engine surface and the reach high temperatures. The paper presents the results...
The research on the level of transport services in selected agricultural farms was carried out in the aspect of their size. It has been concluded that farms with the smallest crop area, provide transport services as a source of additional income. The volume of transport provided as services decreases as the farm size grows. In comparison with the smallest farms, the largest ones provide transport...
The second edition of the Independent Farmers' Opinion Poll (IFOP 2018) resulted in a database of 600 subjective and reliable opinions used for the analysis of the ergonomics and safety of farm tractors. The poll was conducted in all regions of Poland and resulted in Polish farmers’ opinions of several dozen parameters of tractors, which are basic machines on each farm. John Deere won the second edition...
Renewable energy sources are an important component of energy economy. One of its most popular types is plant-based biomass. Among its various types, grass plant straw in form of dried stems and leaves calls for particular attention. Its main source is the cultivation of grains for fodder and consumption. The use of biomass as an energy source requires mechanical processing which entails fragmentation...
The paper presents the results of field tests the aim of which was to assess the effect of microbiological preparations (Azofix, Fosfix, Maxproline) on yielding the cultivar of maize cultivated in stubble aftercrop. The microbiological preparations were applied before maize sowing and in the phase of 4-5 leaves. In order to verify the adopted assumptions, the dynamics of the initial growth and the...
The experimental results of the prototype device for soil application of dewatered digestate, consisting of a modernized manure spreader and aggregated disc harrow, are presented. The main purpose of the tests were stress measurements in the harrow's frame structure and the hitch attached to the manure spreader's chassis. The results of measurements were found to be very consistent in real conditions...
The article presents an analysis of the issues occurring in working systems “stationary flat matrix–compacting rolls”, in particular design parameters of matrices, in universal granulators for plant materials intended for small and medium production plants. Construction parameters of the matrix – diameter and length of holes, the coefficient of clearance (the ratio of the area of holes to the matrix...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.