A Method of Assisting Cold-Starts, Improving Fuel Economy and Reducing Emissions of Engines at Cold Temperatures 890001
A slightly modified thermodynamic cycle for a spark ignition engine is proposed as a means of improving cold starting, warm-up driveability and fuel economy. Tests were conducted on a single cylinder research engine using a modified camshaft to implement the cycle. Substantial improvements in BSFC were obtained not only during the warm-up period but also at normal steady-state temperatures. NOx, CO and UBHC were simultaneously reduced as well.
Citation: Rao, V., Bardon, M., and Gardiner, D., "A Method of Assisting Cold-Starts, Improving Fuel Economy and Reducing Emissions of Engines at Cold Temperatures," SAE Technical Paper 890001, 1989, https://doi.org/10.4271/890001. Download Citation
Author(s):
V. K. Rao, M. F. Bardon, D. P. Gardiner
Affiliated:
Royal Military College of Canada
Pages: 14
Event:
1989 Subzero Engineering Conditions Conference and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Subzero Engineering Conditions Conference Proceedings-P-220, Heavt Duty Truck Aerodynamics-SP-0688, SAE Transactions Journal of Engines-V98-3
Related Topics:
Spark ignition engines
Fuel economy
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