fa موتور احتراق داخلی Internal Combustion Engines (ICE, ...) پژوهشي Research <p class="Abstract" style="margin: 0in 0in 10pt;"><font size="2"><font color="#000000"><font face="Times New Roman">The usage of turbochargers in diesel engines has led to the downsizing of the motors as well as usage of the waste gates in turbochargers. Any dimensional reduction in turbochargers and appurtenant leads to an enhancement on the performance of internal combustion engines and in environmental problems in terms of aerodynamic, thermodynamic and mechanical specifications for both engines and turbochargers. For this reason, the efforts need to be focused on the design of turbochargers and their waste gates accurately, in order to maintain its benefits as much as possible. The extent of waste gate opening, from full opened to closed valve, is demonstrated by the limiting compressor boost pressure ratio. Ultimately, an optimum point of limiting compressor boost pressure ratio is obtained then an increase in the values of BMEP and engine power for the same fuel consumption in range of waste gate opening is achieved<!--stripped--><!--stripped--></font></font></font></p> Diesel Engines, Optimization, Turbocharger, Turbo match Software, Waste gate. 2198 2210 http://ase.iust.ac.ir/browse.php?a_code=A-10-63-125&slc_lang=fa&sid=1 E. Safarian 180031947532846001336 180031947532846001336 Yes K. Bilen 180031947532846001337 180031947532846001337 No M. Akif Ceviz 180031947532846001338 180031947532846001338 No A. Salimias 180031947532846001339 180031947532846001339 No