Turbocharging the I.C. Motor Visitor Address for ME 444 Inside Burning Motors.


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1885 and 1896, Gottlieb Daimler and Rudolf Diesel try different things with pre-compacting admission air ... denoting the first's presence turbocharged Diesel traveler auto ...
Transcripts
Slide 1

Turbocharging the I.C. Motor Guest Lecture for ME 444 Internal Combustion Engines Dr. Philip S. Keller BorgWarner Inc. Motor Systems Group

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Outline Introduction Turbochargers Thermodynamic Analysis Compressor Turbine Intercoolers Benefits Challenges New Developments Conclusions

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Introduction History 1885 and 1896, Gottlieb Daimler and Rudolf Diesel explore different avenues regarding pre-packing admission air 1925 Swiss designer Albert Buchi grows first fumes gas turbocharger which builds power yield by 40% 1938 first business Diesel truck application by "Swiss Machine Works Sauer" 1962 first creation use of turbochargers in traveler autos - the Chevrolet Monza Corvair and the Oldsmobile Jetfire

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Introduction History 1970\'s – first oil emergency and progressively stringent air outflow controls lead to requests for higher force thickness and higher air conveyance. Result - > essentially all present truck motors are turbocharged. 1978 Mercedes-Benz puts the 300 SD into creation denoting the presence of the initially turbocharged Diesel traveler auto 1994 VW presents the variable geometry turbo in their TDI Diesel motor essentially enhancing the transient reaction of the Diesel motor.

Slide 5

Why support? Definitions Introduction

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Introduction Power is essentially an element of three things: Air thickness - > boosting Swept volume Engine speed

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Introduction Types of Boosting Systems Exhaust Gas - Turbocharger Mechanical – Supercharger Main issue with supercharging is the parasitic loss of driving the compressor from the motor yield shaft. This misfortune can be up to 15% of motor yield.

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Turbochargers by far most of turbochargers comprise of a radial compressor and centripetal turbine mounted on a typical shaft Turbine Compressor

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Turbochargers Thermodynamic Analysis ~30-40% of the fuel vitality is discharged as fumes gas vitality Area limited by focuses 415 is the hypothetical vitality accessible. This is some of the time alluded to as blowdown misfortunes Ideal cycle weight volume chart for an actually suctioned motor (Baines, 2005)

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Turbochargers Thermodynamic Analysis Schematic of motor with extensive fumes volume (left) and negligible volume (right) (Baines, 2005) Ideal cycle weight volume outline for a turbocharged motor (Baines, 2005)

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Turbochargers - Thermodynamic Analysis Constant Pressure and Pulse Turbochargers Constant Pressure Turbocharger Lower backpressure at higher speeds Primarily marine and modern motors Pulse Turbocharger More effective utilization of fumes vitality Better torque at low motor rates

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Turbochargers - Thermodynamic Analysis Pulse turbocharger for multi-barrel motor Pulse turbochargers need the fumes channeling isolated so that fumes occasions don\'t meddle with each other

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Turbochargers Compressor Consists of three components Compressor wheel Diffuser Housing Compressor limits Surge line Choke line Maximum Blade Speed

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Turbochargers Turbine Turbines comprise of turbine haggle

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Intercooler Turbocharger Turbochargers Intercooler Temperatures after the compressor can achieve 180 C. Cooling the air can offer a huge execution increment. Synchronous change in yield, efficiency, and emanations

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