In-cylinder flow in high speed two-stroke engines with different transfer channels

Martin Ekenberg*, Bengt Johansson

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

2 Scopus citations

Abstract

2-D LDV measurements were performed in the cylinder of a two-stroke engine. The transfer channels of the cylinders were of two different designs: Open transfer channels and "cup handle" transfer channels. The engine was run at its rated speed, 9000 rpm. Optical access to the cylinder was achieved by replacing the standard cylinder head with a quartz window. No addition of seeding was made, since the fuel droplets were not entirely vaporized as they entered the cylinder and thus served as seeding. Results show that the flow out from the cup handle transfer channels is more directed away from the exhaust port, which promotes loop scavenging. The RMS-value, "turbulence", was low close to the transfer ports in both cylinders, but increased rapidly towards the middle of the cylinder.

Original languageEnglish (US)
DOIs
StatePublished - Dec 1 1997
EventInternational Congress and Exposition - Detroit, MI, United States
Duration: Feb 24 1997Feb 27 1997

Other

OtherInternational Congress and Exposition
CountryUnited States
CityDetroit, MI
Period02/24/9702/27/97

ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering

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