Limiting Delivery Ratio Curves of Crankcase-Scavenged 2-Stroke Cycle Engines by Throttling the Inlet Port

860035

02/01/1986

Event
SAE International Congress and Exposition
Authors Abstract
Content
In order to obtain the limiting delivery ratio curve, the relationships between the delivery ratio and the engine speed were investigated on crankcase-scavenged 2-stroke cycle engines by varying through wide limits the effective angle-areas Fia(e) of the inlet ports.
It was found that the mean inlet Mach number Mim, already reported by the authors using 4-stroke cycle engines, showed well the characteristics of the limiting delivery ratio, and when Mim approached a limiting value the delivery ratio decreased hyper-bolically with an increase in engine speed.
Meta TagsDetails
DOI
https://doi.org/10.4271/860035
Pages
12
Citation
Fukutani, I., and Watanabe, E., "Limiting Delivery Ratio Curves of Crankcase-Scavenged 2-Stroke Cycle Engines by Throttling the Inlet Port," SAE Technical Paper 860035, 1986, https://doi.org/10.4271/860035.
Additional Details
Publisher
Published
Feb 1, 1986
Product Code
860035
Content Type
Technical Paper
Language
English