Name
Polischuk Svetlana Dmitrievna
Scholastic degree
•
Academic rank
professor
Honorary rank
—
Organization, job position
Ryazan State Agrotechnological University named after P.A. Kostychev
Web site url
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Articles count: 3
In agriculture the issue of enhancing the
efficiency of operation of internal combustion
engines (ICE), reducing the costs of
maintenance (TO) and repairing (TP) fuel
supply apparatus (TA) using the improvement
of methods and means of diagnosis is a topical
in connection with the aging rolling stock
farming and lack of investment. Analysis of the
known TA diesel engine vehicles systems
showed that the most widespread system is the
divided type with multiplunger high pressure
fuel pump (fuel pump), while the methods of its
diagnosing are laborious, they require partial
disassembly and have insufficient accuracy.
The mathematical models that characterize the
work of a high-pressure fuel pump (fuel pump)
use a large number of parameters that
significantly affect the quality of dynamics of
the change of pressure values of diesel fuel.
However, in the materials of previously
published articles there were no issues
considered assessing the extent of the
quantitative impact, performance and features
change in the sensitivity settings of the
mathematical models on the simulation results,
there are no recommendations on the degree of
sensitivity and importance of each of the
parameters. For a more accurate diagnosis of
the fuel supply apparatus of a diesel engine it is
advisable to use several methods of diagnosing.
The article substantiates development of a
mathematical model of a high-pressure fuel
pump based on the analysis of modern methods
of diagnosing of fuel equipment for autotractor
diesel engines
The article presents a technical diagnostics of a car as a complex of goals and tasks connected with
trouble-shooting of mechanisms and systems in
order to eliminate them. We have considered the
stages of computer diagnostics of different
automobile systems such as diagnosing the engine,
the brake system, steering and suspension. We have
analyzed their components, the ways of troubleshooting
and elimination recommendations. The
article presents the main troubles transferred from
the electronic control unit. The article also presents
the stages of diagnosing the engine including
external examination, listening to abnormal noises,
checking the operating fluids and the engine
management system, diagnosing the basic engine
systems and checking the cylinders being filled.
The article contains the list of main troubles and
their reasons. One can also see diagnosing the brake
system, its defects and remedies. The article
presents diagnostics and repair of the suspender and
graphics describing the check of the dismantled
shock strut at the stand and tests of the shock strut
without being dismantled. We have analyzed
computer diagnostics and the problems it solves
The article examines the issues of increasing the efficiency of the system of technical operation of mobile agricultural machinery by means of monitoring the state of units and aggregates of the latter through diagnostics. The problems of complex diagnostics of diesel fuel equipment are investigated. The urgency of diagnosing a fuel injection pump without dismantling from the engine is shown from technical, economic and environmental points of view. The effect of operational malfunctions of some devices of fuel equipment on parameters of its operation as a whole is analyzed. On the basis of the analysis of diagnostic devices application, their grouping is suggested. The parameters to be studied in connection with peculiarities to decide whether it is possible to estimate the technical state of the fuel injection pump without dismantling from the internal combustion engine are indicated. Based on peculiarities of the fuel injection pump technical state estimation, a research program is developed and the results of the research are presented. Specific features of testing the fuel injection pump are indicated. Analysis of the results of the research shows that a smaller error in the change of the cyclic fuel feed rates supplied by the fuel injection sections takes place at the engine speed corresponding to the indicated power. The conclusion is made that the presented research results can be used as a basis for developing a technique (technology) for diagnosing the fuel injection pump without dismantling from the internal combustion engine