Browse Publications Technical Papers 830092
1983-02-01

Flattening the Torque Curve of a Two-Stroke Engine with a Fluid Diode Installed at the Scavenge Port 830092

The typical convex torque of a simple two-stroke engine having a port-controlled piston is attributed to the backflow through the scavenge ports. It is proposed here to suppress the backflow by installing scroll diodes at the scavenge ports. Experimental observations on a fired engine demonstrate the remarkable improvement achieved with the diodes installed. The effect of the diodes presence on the engine power and on the delivery ratio is discussed by using a recorded diagram of the crankcase pressure variation with crank-angle during the gas exchange process.

SAE MOBILUS

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

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 17% 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

Delivery Ratio Changes with Branched Inlet Systems Attached to a Two-Stroke Cycle Engine

820158

View Details

TECHNICAL PAPER

Delivery Ratio Changes with Branched Inlet Systems Attached to a Two-Stroke Cycle Engine

820158

View Details

TECHNICAL PAPER

Theoretical and Experimental Analysis of Air and Gas Flows in a Crankcase Scavenged Two-Stroke Engine Employing Boost Ports

690134

View Details

X