The Effect of Crankcase Volume and the Inlet System on the Delivery Ratio of Two-Stroke Cycle Engines

670030

02/01/1967

Event
1967 Automotive Engineering Congress and Exposition
Authors Abstract
Content
Increasing the air charge of crankcase scavenged two-stroke cycle engines is essential for improved performance. Accordingly, the crankcase volume and dimensions of the inlet system were experimentally investigated in order to fully utilize the dynamic effect of both the exhaust and inlet systems with a view towards increasing the delivery ratio. To achieve full utilization of the effect of the inlet system, it was found that the time-area of the inlet port should be far larger than that considered for the usual engine. The drop in delivery ratio caused by increasing the crankcase volume can be fairly well compensated for by tuning the exhaust and inlet systems.
Meta TagsDetails
DOI
https://doi.org/10.4271/670030
Pages
19
Citation
Nagao, F., and Shimamoto, Y., "The Effect of Crankcase Volume and the Inlet System on the Delivery Ratio of Two-Stroke Cycle Engines," SAE Technical Paper 670030, 1967, https://doi.org/10.4271/670030.
Additional Details
Publisher
Published
Feb 1, 1967
Product Code
670030
Content Type
Technical Paper
Language
English