Scavenging Flow Velocity in Small Two-Strokes at High Engine Speed

951789

09/01/1995

Event
Small Engine Technology Conference & Exposition
Authors Abstract
Content
2D-LDV-measurements were made on the flow from one transfer channel into the cylinder in a small two-stroke SI engine. The LDV measuring volume was located just outside the transfer port. The engine was a carburetted piston-ported crankcase compression chainsaw engine and it was run with wide open throttle at 9000 RPM. The muffler was removed to enable access into the cylinder. No additional seeding was used; the fuel and/or oil was not entirely vaporized as it entered the cylinder. Very high velocities (-275 m/s) were detected in the beginning of the scavenging phase. The horizontal velocity was, during the whole scavenging phase, higher than the vertical.
Meta TagsDetails
DOI
https://doi.org/10.4271/951789
Pages
5
Citation
Ekenberg, M., and Johansson, B., "Scavenging Flow Velocity in Small Two-Strokes at High Engine Speed," SAE Technical Paper 951789, 1995, https://doi.org/10.4271/951789.
Additional Details
Publisher
Published
Sep 1, 1995
Product Code
951789
Content Type
Technical Paper
Language
English