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Engine Concepts for CNG Application
ISSN: 0148-7191, e-ISSN: 2688-3627
Published January 18, 2003 by The Automotive Research Association of India in India
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Since the CO2 emissions of passenger car traffic and their greenhouse potential are in the public interest, natural gas (CNG) is discussed as an attractive alternative fuel. The engine concepts that have been applied to date are mainly based on common gasoline engine technology. In addition, in mono-fuel applications, it is made use of an increased compression ratio - thanks to the Research Octane Number (RON) potential of CNG, which allows for thermodynamic benefits.
This paper presents advanced engine concepts that make further use of the potentials linked to CNG. Above all, the improved knock tolerance, which can be particularly utilized in turbocharged engine concepts. For bi-fuel (CNG/gasoline) power trains, the realization of variable compression ratio is of special interest. Moreover, lean burn technology is a perfect match for CNG engines. The fuel economy and the emission levels are evaluated based on test bench and vehicle investigations.
CitationUmierski, M. and Wilhelm, M., "Engine Concepts for CNG Application," SAE Technical Paper 2003-26-0040, 2003, https://doi.org/10.4271/2003-26-0040.
- 2001 September 2001
- Ruhrgas, A.G Lagerbericht Konzern and AG 2001 www.ruhrgas.de
- ARAL Online GmbH www.aral.de.
- Schwaderlapp, M et al. 2001
- Umierski, M et al. “Low Emissions and Fuel Consumptions Natural Gas Engines with High Power Density for Stationary and Heavy Duty Applications” SAE 1999-01-2896