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Laboratory and Field Experience with the Use of Natural Gas Fuel in Cummins NTC Series Engines
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Abstract
A first retrofit conversion of a Cummins NTC335 engine to spark ignition was carried out in New Zealand in 1984. The conversion used widely available technology for stoichiometric control of natural gas fuel - air mixtures. Experience from the on-road application in a 40,000 kg GVW truck contributed much to the later development of a 400 hp gas-fuelled variant of the same engine family, using lean mixture carburettion control. A second engine entered service in a logging application in February 1989.
The following paper summarises results arising from laboratory testing of the second engine, and from in-field monitoring. Also presented are preliminary results from testing of a third generation engine, using timed multi-point injection of gas fuel.
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Garcia, P. and Shiells, W., "Laboratory and Field Experience with the Use of Natural Gas Fuel in Cummins NTC Series Engines," SAE Technical Paper 912359, 1991, https://doi.org/10.4271/912359.Also In
References
- Garcia, P. Shiells, W. “Experience with the Operation of Heavy Vehicle Engines Dedicated to the Use of CNG and LPG Fuels” Intl Conf NGV-88 Sydney 1988
- Garcia, P. Shiells, W. “Laboratory and Field Experience with the Development for Natural Gas, LPG and Methanol of the Mercedes OM352 Engine,” Intl. Conf. NGV-90 Buenos Aires 1990
- Garcia, P. et al. “Performance and Cyclic Variability of Natural Gas Fuelled Heavy Duty Engines” SAE 892137 Baltimore 1989
- Garcia, P. “LPG in Heavy Trucks” Waipa County Council Final Report for Liquid Fuels Trust Board Contract No. 650/06/1 Te Awamutu 1984
- Raine, R.R. Stephenson, J. Elder, S.T. “Characteristics of Diesel Engines Converted to Spark Ignition OPeration Fuelled with Natural Gas,” SAE Paper No. 880149
- McFeaters, J. Raine, R. Chanchaona, S. “Combustion Chamber Design for NGV Engines” Intl Conf NGV-90 Buenos Aires October 1990
- Canadian Resourcecon Limited “Centurion Fuel Systems Spark-Ignition Natural Gas Engine Demonstration Project: Final Monitoring Report” Project ED.BC. 86-042, Energy Mines and Resources Ontario 1990