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DOI: 10.14489/td.2015.03.pp.062-067
Gricenko A.V., Glemba K.V., Larin O.N., Bakaykin D.D., Kukov S.S.
DEVELOPMENT OF METHODS AND MEANS OF DIAGNOSING FUEL SYSTEM PETROL ENGINE
(pp. 62-67)
Abstract. In this paper methodology and experimental studies of diagnostic modes and parameters of elements of the fuel system of the engine were described. Among the most important systems we should include fuel system, which accounts for 20…30 % of the failures of the car. Diagnosing fuel system is possible using the device – disconnector of electromagnetic injectors. We set the solenoid injectors with different bandwidth. The studies were conducted at the research bench to the driving motor of 5,5 kW. The object of the test is the fuel system of the engine ZMZ-4062 – 4 cylinder, 16 valve, with the order of the cylinders 1-3-4-2, equipped with a microprocessor control system. The studies found that the greater the pressure difference is established in the fuel system, the higher the engine speed is supported for one nozzle. It was established that the lower the electrical gasoline feed pump, the lower limits of variation of the engine speed. The analysis of the characteristics of the automotive electromagnetic injectors and fuel pumps was performed. The study confirms the need to develop new methods and means for their diagnosis with rapid and high reliability without disassembling fuel system components apart. Experimental studies to assess the capacity of the nozzles and the degree of wear of the electric fuel pump were provided.
Keywords: diagnostics, electric fuel pump, solenoid injectors, the fuel system of a vehicle, the method, parameters, technical condition.
A. V. Gricenko, K. V. Glemba, O. N. Larin, D. D. Bakaykin, S. S. Kukov
Сhelyabinsk State Academy of Agroengineering; South Ural State University (NRU), Сhelyabinsk, Russia. E-mail:
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