1967-02-01

The Effect of Crankcase Volume and the Inlet System on the Delivery Ratio of Two-Stroke Cycle Engines 670030

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.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Large Amplitude Wave Propagation in Exhaust Systems of Two-Stroke Engines

780708

View Details

TECHNICAL PAPER

Design and Initial Development of a High Specific Output 500 CC Single-Cylinder, Two-Stroke, Racing Motorcycle Engine

710082

View Details

TECHNICAL PAPER

The Present-Day Efficiency and the Factors Governing the Performance of Small Two-Stroke Engines

660009

View Details

X