Results of the experimental investigation of Д-440 diesel are presented. Tests were conducted when the diesel was operating using pure rape oil and nanocomposition ensuring the reduction of engine sludge formation in the combustion chamber. Detergent effect was confirmed when nanocomposition was used in motor oil and pure plant oil fuel.
Stochastic model of demand and supply was applied to inflow of orders (demand) for spare parts sold by a technical service enterprise. The advantage of the model is the system approach to procurements management in the conditions of integer randomly distributed demand.
The technology of antifriction and hydrophobic polymeric coatings for units of seeders working organs was developed. The results of experimental investigations are given.
Influence of factors on irregularity of fertilizers application with machines equipped with centrifugal working organs was analyzed. Trajectory and distance of fertilizer’s particles flight when they have been applied on the slope were determined.
The design of pneumohydraulic sprayer for pesticide solutions intended for bar sprinkler, in which drips of sprayed liquid are accompanied by air to treatment target, is considered. The design can be recommended for energy-effective and ecofriendly technologies of pesticide application in plant cultivation.
Contact and noncontact variants of electric circuit of obligatory trigger-action audio alarm actuating before switching on of the electrical installation are proposed.
The process equipment complex for high-temperature thermomechanical processing with deformation by the screw reduce is considered. It permits to obtain a regular reinforced profile for manufacturing of multi-diameter (hollow and entire) shafts and axes.
It is shown that application of welding armoring of renewed moldboards ensures longer service life in comparison with non-reinforced parts by 20 per cent; failure times of renewed and reinforced moldboards and new-supplied ones are comparable. Wear resistance by weight alters according to a parabolic function and cannot be a criteria of moldboards longevity.
The main aspects determining necessity and practicability of practical embodiment of implementation tasks of proprietary technical maintenance method were analyzed. Deterrents and causes impeding the implementation were estimated.
The method of tractive and coupling properties determination for wheeled tractor is proposed. It takes into consideration the unsteady nature of tractor’s loading with hook force in real operation conditions.
Results of analysis of various types transmissions application on tractors of different power categories presented in the German-speaking countries in 2013 are given.
The method of brush fabricating was developed. It allows to make assembly of brush easier and simpler and decreases laboriousness of root crops cleaning machine service.
The task of soil cultivating cutters power consumption reducing by means of ensuring of necessary cutting angle is examined. The technical solutions for realization of theoretical investigations are proposed.
The bench tests of the Д-243 diesel equipped with fuel energy-saturating device are described. Its loading and regulatory parameters have been analyzed.
The fuel supply system is presented, that along with the standard units and aggregates includes the mixer with active drive ensuring quality mixing mineral and biological components, supply of prepared mixed fuel to fuel injection pump and its injection into diesel cylinders.
The choice method of technology of ruptures neutralization on ЯМЗ-240 engine crankshaft journals by means of ruptures cutting and welding is proposed.
The results of investigation of undermining working organs of potato harvesters operating in the condition of low soil moisture are given.
Energy expenditures for preparing of additives set by the convention way (heating and mixing) and by SHF-method (mixing and electromagnetic SHF-field treatment) are compared. Energy expenditures per product unit reduce and processing time decreases due to SHF-method application. In this case, indices of additives set parameters comply with the State Standart.
Several designs of the systems of single-point or distributed enrichment of air charge are developed, tested and patented. These designs intend for batching of hydrocarbonic activator into intake manifold of tractor diesel depending on high-speed and load regimes.
The constructions of undivided combustion chambers and their influence on tractor engines dynamic behavior are considered.