Saransk, Saransk, Russian Federation
Saransk, Saransk, Russian Federation
Saransk, Saransk, Russian Federation
The purpose of the research is to identify the peculiarities of interconnection of dynamic characteristics of the turbocharger TKR 6.1 and the engine D-245-35 in the presence of a fault in the pressurization system. In the practice of fault finding in the system of supercharging of automotive engine widely used method of diagnosis, OS-nated steak subs on the measurement of the boost pressure in the nominal modes. In terms of the service companies due to the lack of brake stands to estimate the load mode is often not possible. For acceleration of the turbocharger and engine at the department of mobile power tools, national research of Mordovsky State University named after N. P. Ogarev created diagnostic complex consisting of forming unit of the source signals, the optical sensor shaft speed of the turbocharger, sensor of frequency of rotation of the motor shaft, the linear displacement transducer arm balancing machines, analog-to-digital Converter, software and a personal computer. The tests were carried out on the engine MMZ D-245-35, with an installed turbocharger TKR-6.1, simulation of the working regimes was carried out on the roller-brake stand. The test results obtained a series of characteristics of the acceleration of the turbocharger engine D-245-35 and TKR-6.1 with a step input exposure. Analysis of the data showed that the presence of a malfunction of the boost «leak turbine inlet», «air filter clogged» leads to an increase in the transient time and reducing the frequency of rotation of the rotor TKR in all modes. Spaced- out characteristic obtained in idling mode in the fault conditions «loss of gases after the compressor» is accompanied by the growth of the amplitude value of the shaft speed TCR and the reduction of time of transition. This feature of the waveform of the acceleration allows us to identify faults of this kind in the diagnosis of the supercharging system.
turbocharger, engine, feature, system, diagnosis
1. Volgin, V. V. Some properties of the amplitude-frequency characteristics of linear systems of automatic regulation and quality regulation in case of accidental exposure / V. V. Volgin, R. N. Karimov // Proceedings of the universities. Electrician. – 1973. – № 2. – P. 195-205.
2. Volgin, V. V. Accounting of the real disturbances and the choice of quality criterion of comparative evaluation of quality control of thermal processes / V. V. Volgin, R. N. Karimov, A. S. Karetsky // Thermal Engineering. – 1970. – № 3. – P. 25-30.
3. Inshakov, A. P. Methods of an assessment of operability of systems of gas-turbine pressurization of autotractor engine : monograph / A. P. Inshakov, I. I. Kurbakov, A. N. Kuvshinov. – Saransk, 2015. – 123 p.
4. Inshakov, A. P. Hardware monitoring the health of turbocharger / A. P. Inshakov, I. I. Kurbakov, A. N. Kuvshinov // Energy-saving technologies and systems : coll. articles – Saransk, 2013. – P. 137-141.
5. Inshakov, A. P. The Software package «Diesel RK» / A. P. Inshakov, I. I. Kurbakov // Rural mechanic. – 2013. – № 12 (58). – P. 45.
6. Lyandenburskiy, V. Built-in diagnostics of diesel turbochargers / V. V. Lyandenburskiy, A. P. Inshakov, I. I. Kurbakov [et al.] // Science of science. – 2015. – T. 7, № 4.
7. Pat. № 145761 Russian Federation, MPK G01P3/00. The device for measurement of shaft speed of a turbocompressor / A. P. Inshakov, I. I. Kurbakov, A. N. Kuvshinov, O. F. Kornaukhov. – № 20113157453 ; appl. 24.12.2013 ; publ. 27.09.2014.
