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  • Study note of turbo turbine housing

    Study note of turbo turbine housing

    Improvements in the efficiency of internal combustion engines has led to a reduction in exhaust gas temperatures. The simultaneous tightening of exhaust emission limits requires ever more complex emission control methods, including after treatment whose efficiency is cru...
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  • Some information about turbocharger

    Some information about turbocharger

    Turbo-discharging is a novel approach that can better utilize the energy recoverable by a turbine mounted in the exhaust flow of internal combustion engines. The recovery of blow down pulse energy in isolation of displacement pulse energy allows the discharging of the exhaust system to reduce eng...
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  • Studying note of VGT turbocharger

    Studying note of VGT turbocharger

    All compressor maps are evaluated with the help of the criteria derived during the requirements analysis. It can be shown that there is no vaned diffuser which increases compressor efficiency in the main driving range while maintaining the baseline surge stability and efficiency at rated engine p...
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  • Study notes of turbocharger industry

    Study notes of turbocharger industry

    Study notes of turbocharger industry Measured rotor vibrations of an automotive turbocharger rotor were presented and the occurring dynamic effects explained. The main excited natural modes of the rotor/bearing system are the gyroscopic conical forward mode and the gyroscopic translational forwar...
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  • Study notes of turbocharger theory

    Study notes of turbocharger theory

    The new map is based on the use of conservative parameters as turbocharger power and turbine mass flow to describe the turbine performance in all VGT positions. The curves obtained are accurately fitted with quadratic polynomials and simple interpolation techniques give reliable results. Downsizi...
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  • Study notes of turbochargers

    Study notes of turbochargers

    In the world, the main goal is the improvement of fuel economy without sacrifices regarding any other performance criteria. In a first step, a vaned diffuser parameter study shows that efficiency improvements in the relevant operating areas are possible at the cost of reduced map width. Concludin...
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  • Study notes of compressor housing

    Study notes of compressor housing

    Global warming and greenhouse gas emissions are a great concern. To reduce these emissions, there is a global trend towards cleaner energy sources. There are two compressors with two different coupling, the first coupling with a gas turbine and the second coupling with an electric motor, the gas ...
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  • Industry study note of turbine wheel

    Industry study note of turbine wheel

    Due to increasing demands on the efficiency of diesel engines, turbochargers are subjected to higher temperatures. In consequence rotor speed and temperature gradients in transient operations are more severe and therefore thermal and centrifugal stresses increase. To det...
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  • Some study notes from Industry

    Some study notes from Industry

    The application of turbochargers in combustion engines became significantly more important in the recent years. In the passenger car sector almost all diesel engines and more and more gasoline engines are equipped with a turbocharger. Compressor wheels on exhaust turbochargers in car and truck ap...
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  • The new development on turbocharger

    The new development on turbocharger

    An increasing attention is paid by the global society to the issue of environmental protection. Additionally, by the year 2030, CO2 emissions in the EU are to be reduced by almost one third in comparison with 2019. Vehicles play an important role in day-to-day social development, how to control t...
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  • How does the turbocharger adapt to the climate change demand?

    How does the turbocharger adapt to the climate change demand?

    There is no doubt that air quality and climate change are the key drivers in the whole world. How to improve powertrain dynamics while meet future CO2 and emission targets remains a challenge and will require fundamental changes and advanced technologies. Based on some p...
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  • Some theoretical study notes related to Turbocharger: Note one

    Some theoretical study notes related to Turbocharger: Note one

    Firstly, Any simulation of air flow through turbocharger compressor. As we all know, compressors have been widely used as effective method to improve the performance and decrease the emissions of diesel engines. The increasingly strict emission regulations and heavy exhaust gas recirculation are ...
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