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A Study on Advanced Low Exhaust Emission Two-Stroke Engine
Technical Paper
978489
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English
Abstract
The object of this study is to evaluate the effects of air-head stratified scavenging with lean combustion using a 34cc two-stroke spark-ignition engine on reducing THC and CO emission and improving thermal efficiency.
The result showed that the amount of short-circuiting mixture with a conventional Schnurle scavenging two-stroke engine was reduced from 30% to 9% with the air-head stratified scavenging two-stroke engine. Thermal efficiency was improved from 13.6% to 20.6%. As the result, the engine with air-head stratified scavenging in this study can conform to CARB 1999 or tier 2 emission standards regarding THC, CO and NOx emission.
Authors
Topic
Citation
Sawada, T., Wada, M., Noguchi, M., and Kobayashi, B., "A Study on Advanced Low Exhaust Emission Two-Stroke Engine," SAE Technical Paper 978489, 1997.Also In
References
- Amended Utility and Lawn and Garden Equipment Engine Emission Regulations And Test Procedures State of California Air Resources Board August 18 1995
- Test procedures For the Measurement of Exhaust Emissions from Small Utility Engines - SAE Recommended Practice J1088 JUN 83 Society of Automotive Engineers June 1983
- Douglas R. AFR and Emission calculations for Two-stroke Engines SAE Paper No. 901599 September 1990
- Blair G. P. The Basic Design of Two-Stroke Engines Society of Automotive Engineers 1-56091-008-9 1990
- Blair G. P. Design and Simulation of Two-Stroke Engines Society of Automotive Engineers 1-56091-685-0 1996