METROLOGICAL CHARACTERISTICS OF THE HIGH PRESSURE REGISTRATION IN INJECTION FUEL SYSTEMS OF DIESEL ENGINES WITH APPLICATION OF THE COMBINED TRANSDUCER

Abstract

The technique of the harmonious analysis of metrological characteristics for record of non-stationary processes is presented. Furies method is used in the apply to tasks of graphic and tabulated form data processing. Furies coefficients were calculated by means of the approached integrations method with use of rectangular formulas. The algorithm and the program, adopted for measurement of fuel injection parameters of diesel engines, is developed. Program realization has the wide spectrum of options providing the optimum interface and the form of representation of results of the analysis. It was carried out research of amplitude -frequency parameters of measuring system on the basis of the combined converter for fuel pressure. As the converter was used the constructive element of the marine middle speed diesel fuel injection system. Pressure of fuel in FPHP was measured with two transducers: base of traditional design and experimental. Engineless tests in boards of the of rotation frequencies, overlapping operational limits of the engine, are lead. Experimental data are processed in the environment of the developed package. Peak-frequency characteristics of measuring system in comparison of the combined and base converter of pressure of fuel are certain. Discrete Furies transformation was made with show of result in the form of the diagram of amplitudes the spectral components on the screen and for the visual control return Furies transformation also with a show of the diagram of function to the screen. It is established, that the system with the combined converter has parameters close to a base variant on all modes except the fractional injection.