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Development of a Low Emission Two-Stroke Cycle Engine
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English
Abstract
This paper focused experimental and theoretical studies on the effects of air-head stratified scavenging and leaner combustion on reducing hydrocarbon emission and improving thermal efficiency of two-stroke cycle spark-ignition engine.
The result showed that the amount of short-circuiting mixture with a conventional Schnurle scavenging two-stroke cycle engine was reduced from 30% to 9% with the air-head stratified scavenging two-stroke cycle engine which was developed in this study. Thermal efficiency was improved from 13.6% to 20.6%. As the result, the engine with air-head stratified scavenging and leaner combustion in this study can conform to the California Air Resources Board (CARB) 1999 or tier 2 emission standards regarding THC, CO and NOx emission.
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Sawada, T., Wada, M., Noguchi, M., and Kobayashi, B., "Development of a Low Emission Two-Stroke Cycle Engine," SAE Technical Paper 980761, 1998, https://doi.org/10.4271/980761.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 Gaseous Exhaust Emissions from Small Utility Engines - SAE Recommended Practice J1088 FEB 93” Society of Automotive Engineers February 1993
- 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