Misfiring Effects on Scavenging Flow at Scavenging Port and Exhaust Pipe in a Small Two-Stroke-Engine

Paper #:
  • 930498

Published:
  • 1993-03-01
Citation:
Ikeda, Y., Ohira, T., Takahashi, T., and Nakajima, T., "Misfiring Effects on Scavenging Flow at Scavenging Port and Exhaust Pipe in a Small Two-Stroke-Engine," SAE Technical Paper 930498, 1993, https://doi.org/10.4271/930498.
Pages:
16
Abstract:
Misfiring cycles were detected by a conditional sampling method to demonstrate the differences between firing and misfiring of the scavenging flow characteristics at the scavenging port and exhaust pipe using LDV method. The results show that the flow at the scavenging port was not influenced significantly by misfiring, but the blowdown flow in the exhaust pipe greatly depended on the combustion status. The blow-down flow of fired cycles at a light-load condition was very similar to the flow at a full-load condition. It was also found that measured flow characteristics at partial load should not be considered by averaging firing and misfiring cycles. The occurrence pattern of misfiring should be quantified and considered in the analysis.
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Standard
1987-02-01
Technical Paper / Journal Article
2004-03-08