期刊名称：Advances in Science and Technology Research Journal
印刷版ISSN：2080-4075
电子版ISSN：2299-8624
出版年度：2020
卷号：14
期号：2
页码：223-232
DOI：10.12913/22998624/119755
语种：English
出版社：Society of Polish Mechanical Engineers and Technicians
摘要：A combustion engine turbocharger works in most difcult conditions due to high temperatures of the fuels itis driven by, vibrations and high rotational speeds of its shaft up to 200 thousand rpm. In addition, under theseconditions, there are difculties with lubrication of the blade axes. Thus, the combustion engine turbocharger isexposed to the damages occurring during the engine operation process. The frequency of damages was determinedon the basis of tests for a selected group of vehicles. The object of detailed author’s own research was the Audi 3.0V6 TDI engine of the Audi A6 C6 car which cooperated with a Borg Warner turbocharger with a variable angleof turbine steering wheel blades. These positioners are also exposed to adverse conditions: mainly vibrations andhigh temperatures. They are subjected to frequent damages, which often affect the engine control parameters. Ananalysis of the positioner element damage as well as a group of testers to assess their technical condition was made.The evaluated testers were allowed only to determine the efciency of the turbocharger, but without indicatingits technical condition or its positioner separately. Consequently, the author’s own research methodology and theconstruction of a new tester for the electromechanical turbocharger adjuster was developed. The necessary testsfor the vehicle mileage up to 350,000 km were carried out. The self-designed tester can also estimate the degree ofelectromechanical wear of the positioner in the engine supercharging system as well as the resistance of its movements resulting from the pollution of the VTG turbocharger mechanism with the turbine steering wheel positioner,with variable geometrical parameters.
