1962-01-01

Combustion Chamber Design for Two-Stroke Cross-Flow Outboard Engines 620170

The factors considered in the new design of combustion chambers for 2-stroke cross-flow outboard engines are combustion control and trapping and air flow considerations. The former includes (1) compression ratio and the effects of surface-to-volume ratio; (2) volume location as determined relative to the piston baffle; (3) spark plug temperature; (4) knock and pressure rise control as related to flame travel and change of volume of mixture consumed; (5) octane number requirements; (6) the effect of thin rings on metal temperature and engine friction; and (7) oil-fuel mixture effects on friction and power. Trapping and air flow considerations include (1) flow path control as determined by static pressure rise; (2) pressure reversals in air column with possible back flow; and (3) fuel separation in boundary layers and effects on carburetion.

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

Influence of Engine Parameters on ATAC Behaviour in a G.D.I. Two-Stroke Engine

2001-01-1858

View Details

TECHNICAL PAPER

A New Piston Design for a Cross-Scavenged Two-Stroke Cycle Engine with Improved Scavenging and Combustion Characteristics

841096

View Details

JOURNAL ARTICLE

A Study of the Behavior of In-Cylinder Pressure Waves under HCCI Knocking by using an Optically Accessible Engine

2015-01-1795

View Details

X