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Natural Gas Conversion Systems for Heavy Duty Truck Engines
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English
Abstract
An electronic dual fuel natural gas/diesel conversion system has been developed for the Caterpillar 3406 diesel engine with the Programmable Electronic Engine Control (PEEC) system. This system is microprocessor based, and interfaces with the Caterpillar PEEC system to allow control of diesel injection timing as well as fuel quantity. Control of injection timing allows pilot fuel levels as low as 3% at full load, however, to ensure good transient response, minimum pilot level is about 10%. The completed system has similar performance to the diesel engine, with comparable efficiency at full load. Furthermore, the engine's governing characteristics are similar on dual fuel or diesel only operation. Carbon monoxide and hydrocarbon exhaust emissions are higher than on diesel, particularly at light load, however, oxides of nitrogen emissions are lower.
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Citation
Gettel, L. and Perry, G., "Natural Gas Conversion Systems for Heavy Duty Truck Engines," SAE Technical Paper 911663, 1991, https://doi.org/10.4271/911663.Also In
References
- Gettel, L.E. Perry, G.C. Boisvert, J. O'Sullivan, P.J. “Dual Fuel Engine Control Systems for Transportation Applications” Journal of Engineering for Gas Turbines and Power 109 435 438
- Gettel, L.E. Perry, G.C. Boisvert, J. O'Sullivan, P.J. “Microprocessor Dual-Fuel Diesel Engine Control System” SAE Paper 861577 Warrendale Pa. 1986
- Gettel, L.E. Perry, G.C. Boisvert, J. O'Sullivan, P.J. “Microprocessor Based Engine Controller for a John Deere Natural Gas/Diesel Engine” Proceedings of the 23rd. Automotive Technology Development Contractor's Coordination Meeting October 1985
- Moncelle, M.E. Fortune, G.C. “Caterpillar 3406 PEEC (Programmable Electronic Engine Control)” SAE Paper 850173 Warrendale Pa. 1985
- Gettel, L.E. Perry, G.C. “Performance and Emission Characteristics of a Dual Fuel Caterpillar 3406 Engine” Proceedings of Fifth Windsor Workshop on Alternative Fuels 1989