This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
A 400HP Truck Engine Operating on Natural Gas
Technical Paper
912476
Annotation ability available
Sector:
Event:
Language:
English
Abstract
A 14 litre turbo charged intercooled diesel engine has been re-engineered to operate as a spark ignition engine fuelled with natural gas. The design targets were for an efficient engine with low emissions using the lean burn capability of natural gas but without sacrificing power output. The resulting ultra lean burn spark ignition engine achieves diesel engine thermal efficiency, with a much reduced NOx emissions though higher NMHC emissions. The engine changes included revised compression ratio, and combustion chamber shape, inlet system modifications to increase turbulence during combustion, i.e., a “smart burn” system, and a new engine management strategy using a “drive by wire” computer control of fuel and throttle and spark timing.
The engine has begun duty in an articulated truck in a short haul parts delivery operation, and monitoring of the in service performance has begun.
Authors
Topic
Citation
Milkins, E., Edsell, J., and Chase, P., "A 400HP Truck Engine Operating on Natural Gas," SAE Technical Paper 912476, 1991.Also In
References
- Bergmann, H. “Facts Concerning the Utilisation of Gaseous Fuels in Heavy Duty Vehicles.” Conference on Gaseous Fuels for Transport Vancouver, Canada 1986
- DeBoer, C.D. Johns, R.J.R. Grigg, D.W. Train, B.M. Denbratt, I. Linna, J.R. “Refinement with Performance and Economy for Four Valve Automotive Engines.” Automotive Power Systems - Environment and Conservation, I.Mech.E., Lond. 1990