二流体噴射弁の現状

概要

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Twin-fluid atomizer is a kind of atomizers in which the liquid is atomized by a high velocity gas stream, and air or steam is commonly used as the gaseous medium.The outstanding feature of this type of atomizer is that the amount of energy available for atomization can be varied independently irrespective of the liquid flow-rate. Consequently, even with very viscous liquid, satisfactory atomization can be accomplished by using twin-fluid atomizers under moderate injection pressure of the liquid over a wide range of its flow-rate. On the other hand, twin-fluid atomizer needs necessarily an air- or steam source.Twin-fluid atomizers may be classified from various points of view. In this paper, they are divided into two groups by the configuration of the liquid with which it encounters with the gas stream; the first is the cylindrical liquid jet type, and the second, the liquid sheet type. In the latter type, the liquid sheet is generated by a swirl atomizer, rotary cup, narrow gap and so on, Then, the design features and the spray characteristics of typical twin-fluid atomizers, which have mostly been developed for the combustion of liquid fuels, are described according to this classification.
独立行政法人海上技術安全研究所の論文
1968-11-25