Effects of Valve-Shrouding and Squish on Combustion in a Spark-ignition Engine

852093

10/01/1985

Event
1985 SAE International Fall Fuels and Lubricants Meeting and Exhibition
Authors Abstract
Content
The effects of two commonly used methods for altering the combustion process in a spark-ignition engine are examined using pressure measurements and high-speed schlieren photography. A square cross-section visualization engine with two quartz sidewalls was used to allow optical access over the entire four-stroke operating cycle. Engine operation with a shrouded intake valve, which changed the intake-generated flow, and with a stepped piston, which changed the compression-generated flow, are compared to a base condition. In addition, cyclic variations in burning are examined for all cases.
Meta TagsDetails
DOI
https://doi.org/10.4271/852093
Pages
20
Citation
Gatowski, J., and Heywood, J., "Effects of Valve-Shrouding and Squish on Combustion in a Spark-ignition Engine," SAE Technical Paper 852093, 1985, https://doi.org/10.4271/852093.
Additional Details
Publisher
Published
Oct 1, 1985
Product Code
852093
Content Type
Technical Paper
Language
English