Vol 83, No 1 (2016)


Principles for construction of mathematical model of a modern low-toxic diesel engine for transport and technological means and agricultural machines

Kamenev V.F., Scheglov P.A.


The article considers the principles of mathematical modeling of thermodynamic and gasdynamic processes in modern diesel engine and in systems intended to reduce the harmful substances level in exhaust gases, namely in oxidation catalytic converter, in particulate filter with regeneration system and in selective catalytic reduction system for nitrogen oxides neutralization.
Tractors and Agricultural Machinery. 2016;83(1):3-8
pages 3-8 views

Experimental research of performance of diesel engine operating on mixed fuel

Nagornov S.A., Mescheryakova Y.V., Mescheryakov A.G.


Tests of mixed fuel have been carried out on the ЮМЗ-Л6 tractor. This fuel consisted of diesel fuel and 5-20% supplement based on Chlorella vulgaris microalgae. Measurements of traction-speed and fuel-economic parameters of diesel engine under load in the field have been performed. Smokiness and toxicity of exhaust gases have been measured as well.
Tractors and Agricultural Machinery. 2016;83(1):9-11
pages 9-11 views

Study of influence of layer-by-layer blowdown on the efficiency and environmental friendliness of two-stroke engine

Karasev V.A., Sokolov I.L., Kuklin V.N., Khapskiy A.V., Kulikov R.A.


The article studies the various design diagrams of two-stroke engines allowing to improve significantly their efficiency and to reduce the pollutant emissions.
Tractors and Agricultural Machinery. 2016;83(1):12-16
pages 12-16 views

Innovative agro-engineering solutions in design of drills for sugar and fodder beet

Mikheyev V.V., Kusova N.I., Savelyeva M.S., Goncharov N.T., Grishin A.A.


Technical level of precision seed drills for sugar and fodder beet is analyzed. Faults in their design and technology such as non-uniformity of seeding and seed germination, unsatisfactory process reliability are revealed. For the purpose of faults removal, it is proposed to equip drills additionally with new working organs.
Tractors and Agricultural Machinery. 2016;83(1):16-20
pages 16-20 views

Use of new generation relay in the control scheme of grain thrower

Mazukha N.A.


The paper presents a protection scheme for electric motors of grain thrower, based on multifunctional relay for control of open-phase modes of supply network and on isolation of circuits to which the relay is connected. The paper also proposes the use of single-phase relay of current control with regulated time-lag for energy saving.
Tractors and Agricultural Machinery. 2016;83(1):20-22
pages 20-22 views

Hand-held vibro-impact tree shaker

Shevchuk R.S., Krupich R.O.


By means of modernization of the SC105 hand-held vibrating shaker made in Italy, a hand-held vibro-impact tree shaker has been developed; it provides increase of fruit harvesting efficiency and reduction of bark damage.
Tractors and Agricultural Machinery. 2016;83(1):22-25
pages 22-25 views

Improvement of working fluid preparing device of a seed treater

Vyalykh V.A., Burmistrov A.N.


Experimental prototype of two-section working fluid preparing device for serial mobile seed treaters has been developed. It is mounted with four-section filling neck and elastic inner tank, and it is capable of running in continuous mode during working shift.
Tractors and Agricultural Machinery. 2016;83(1):25-27
pages 25-27 views

Way of indicators matching of tractor diesel engines and transmissions

Gorodetskiy K.I., Serebryakov V.V., Melnikov A.Y., Muratova S.K., Alendeyev Y.M.


A version of electronic stepless control of tractor motion speed by means of fuel feeding regulation under step changes of transmission ratios is described.
Tractors and Agricultural Machinery. 2016;83(1):28-31
pages 28-31 views

Features of cold start of 6ЧН 13/11 engine and after start warming-up of engine and transmission unit of T-150K tractor

Krokhta G.M.


The article analyzes the features of diesel engine cold start in conditions of low ambient temperature. A method for estimation of fuel combustion incompleteness in period of after start warming-up has been developed. Particular method estimating the efficiency of burned fuel heat utilization is proposed. Reliability of the proposed methods has been confirmed experimentally. The article outlines the ways of improving the efficiency and reliability of machines’ performance by means of reducing the warming-up time of engine and transmission unit in after start period.
Tractors and Agricultural Machinery. 2016;83(1):31-35
pages 31-35 views

Role of soil bin in studies of processes in the “working organ - soil” system

Zvolinskiy V.N., Mosyakov M.A., Nikolayenko N.Y.


Development of new equipment in laboratory conditions of soil bins will facilitate the registration of changing factors of research, will allow to use the processes modeling through constructing 3D models of machines, will provide the faithful reproduction of real conditions and the convenience for performing of all-season and continuous bench tests. As a result, it will speed up the creating of new machines.
Tractors and Agricultural Machinery. 2016;83(1):36-40
pages 36-40 views

Reynolds number effect on the aerodynamic characteristic of transverse fans

Sychugov N.P.


Data on the dependence of Reynolds number (criterion) on air condition parameters and air flow speed are given. The results of study of Reynolds number effect on aerodynamic characteristic of geometrically similar fans in pre-self-similar area of this criterion are presented.
Tractors and Agricultural Machinery. 2016;83(1):40-46
pages 40-46 views

Numerical simulation of heat and hydraulic characteristics of heat exchange surfaces of plate-finned heat exchangers

Akhmedshin Y.A., Vyaznikov M.V., Rumyantsev V.V.


The article presents the results of numerical simulation of airflow in the channel of heat exchange surface. Based on these results, the surface characteristics have been constructed. Evaluation of simulation results in comparison with experimental data is given.
Tractors and Agricultural Machinery. 2016;83(1):46-48
pages 46-48 views

Research of movement of hexagonal and circular disk working organs of tillage machines

Kobyakov I.D., Yevchenko A.V.


The plough hexagonal disk knife has been theoretically investigated, produced and tested in laboratory soil bin and in field conditions. Using of hexagonal knives instead of standard circular ones allows to reduce the traction resistance of tillage machine and to increase significantly the quality of ploughing.
Tractors and Agricultural Machinery. 2016;83(1):49-51
pages 49-51 views

Determination of diameter of a cutter drum with two-step F-shaped knives

Makhmutov M.M., Khismatullina Y.R., Tepikin A.I., Bykovskiy S.V., Dzhabbarov A.K., Alimov A.S., Makhmutov M.M.


The article considers the influence of pitch of sole of a cutter with two-step F-shaped knives on the diameter of cutter drum.
Tractors and Agricultural Machinery. 2016;83(1):51-52
pages 51-52 views

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