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Advanced Variable Geometry Turbocharger for Diesel Engine Applications
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 04, 2002 by SAE International in United States
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Diesel engines face increasingly stringent emissions regulations worldwide. The trade-off between fuel economy and NOx emissions and between NOx and particulate emissions is becoming more critical. In light of these regulations and design trade-offs among many variables, engine-boosting systems have become increasingly important. An advanced variable nozzle turbocharger (AVNT™) is described. The innovative design is described along with key characteristics. The design features a minimization of additional parts associated with the variable geometry mechanism and electro-hydraulic actuation integrated with the bearing system. The impact of variable geometry turbocharging on diesel engine performance, fuel economy, torque, emissions and braking capability is described. It is shown that significant improvements in all five variables are readily possible with the use of this variable geometry turbocharger.
- Steve Arnold - Garrett Engine Boosting Systems, Honeywell International, Inc.
- Mark Groskreutz - Garrett Engine Boosting Systems, Honeywell International, Inc.
- S.M. Shahed - Garrett Engine Boosting Systems, Honeywell International, Inc.
- Kevin Slupski - Garrett Engine Boosting Systems, Honeywell International, Inc.
CitationArnold, S., Groskreutz, M., Shahed, S., and Slupski, K., "Advanced Variable Geometry Turbocharger for Diesel Engine Applications," SAE Technical Paper 2002-01-0161, 2002, https://doi.org/10.4271/2002-01-0161.
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