This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Advanced Turbocharging Technologies for Heavy-Duty Diesel Engines
Technical Paper
2001-01-3260
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SAE 2002 World Congress & Exhibition
Automotive and Transportation Technology Congress and Exposition
Language:
English
Abstract
Heavy-duty diesel engines face increasingly stringent emissions regulations. The trade-off between fuel economy and NOx emissions and between NOx and particulate emissions is becoming even more critical. In the light of these regulations and the trade-off among many variables, air handling and exhaust gas recirculation (EGR) systems become increasingly important. Three advanced turbocharging technologies - variable nozzle turbochargers, integral EGR pump and an ultra-high pressure ratio, long life compressor are described. In this paper an overview of the designs and their impact on fuel economy, low speed torque, emissions and durability is described. It is shown that significant improvements in all four variables are readily possible with the use of these advanced turbocharging technologies. It is shown that variable nozzle (VNT) turbocharging reduces smoke particularly at low speeds by a factor of 5, improves torque at low engine speeds and improves fuel economy by about 3%. It is shown that the IEGR pump enables EGR without increasing back pressure on the engine. Finally, the ultra-high pressure ratio, long life compressor is shown to supply high pressure ratios (5-6:1) with wide flow range and fatigue life increases by factors of 100 or more. Later publications will present these three technologies individually and in greater detail.
Recommended Content
Authors
- Steve Arnold - Garrett Engine Boosting Systems - Honeywell International, Inc.
- Kevin Slupski - Garrett Engine Boosting Systems - Honeywell International, Inc.
- Mark Groskreutz - Garrett Engine Boosting Systems - Honeywell International, Inc.
- Gary Vrbas - Garrett Engine Boosting Systems - Honeywell International, Inc.
- Rob Cadle - Garrett Engine Boosting Systems - Honeywell International, Inc.
- S. M. Shahed - Garrett Engine Boosting Systems - Honeywell International, Inc.
Topic
Citation
Arnold, S., Slupski, K., Groskreutz, M., Vrbas, G. et al., "Advanced Turbocharging Technologies for Heavy-Duty Diesel Engines," SAE Technical Paper 2001-01-3260, 2001, https://doi.org/10.4271/2001-01-3260.Also In
References
- Eberhardt James J. “Criteria Pollutants: Is the Problem the Diesel or the Gasoline Engine? Can We Meet Future Emissions Standards?” Proceedings of the Diesel Engine Emissions Reduction Workshop US Department of Energy July 1998
- Shahed S. M. Allen J. Lin W. Barrios E Birch K. “Turbocharging Systems with Electrical Assistance for Conventional, Hybrid and Fuel Cell Powertrains” Vienna Motor Symposium April 2000
- Automotive Industries Special Supplement Feb 2001
- Morgan R.E. Edwards S.P. Nicol A. J. Johnston I.D. Needham J.R. “A Premium Heavy Duty Engine Concept for 2005 and Beyond” SAE 1999-01-831
- Shahed S. M. “Turbocharging Solutions for the Next Century” Engine Technology International February 98
- Baert R.S.G. Beckman D.E. Veen A. “Efficient EGR Technology for Future HD Diesel Engine Emission Targets” SAE 1999-01-0837
- Dickey Daniel W. Ryan Thomas W. III Matheaus Andrew “NOx Control in Heavy-Duty Diesel Engines - What is the Limit?” SAE 980174
- Leet Jeffrey A. Matheaus Andrew Dickey Daniel W. “EGR System Integration on a Pump-Line-Nozzle Engine” SAE 980181