Deposition of Fuel Droplets in Horizontal Intake Manifolds and the Behavior of Fuel Film Flow on Its Walls

The behavior of liquid fuel droplets and the liquid fuel film within an intake manifold is studied. By considering the simultaneous processes of evaporation and acceleration of fuel droplets in an ongoing air stream, the deposition rate of the fuel droplets and their evaporation in an intake manifol...

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Bibliographic Details
Published in:	SAE transactions Vol. 93; pp. 125 - 133
Main Authors:	Servati, Hamid B., Yuen, Walter W.
Format:	Journal Article
Language:	English
Published:	Society of Automotive Engineers, Inc 01-01-1984
Subjects:	Cylinders Engines Evaporation Flow velocity Fuels Gravity Liquid fuels Liquids Material films Throttles
Online Access:	Get full text
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Summary:	The behavior of liquid fuel droplets and the liquid fuel film within an intake manifold is studied. By considering the simultaneous processes of evaporation and acceleration of fuel droplets in an ongoing air stream, the deposition rate of the fuel droplets and their evaporation in an intake manifold is predicted. The fuel droplets deposited on the wall of an intake manifold become a liquid film flow. The behavior of the liquid flow is studied to determine the thickness and velocity of the film. A time constant describing the delay of fuel flow due to the liquid film is also determined.
ISSN:	0096-736X 2577-1531