Abstract

Abstract For almost a century experimental work has been conducted on air-injection devices designed to lessen the smoke nuisance inherent in locomotive operation. Not until 1913, however, was any particular progress made in the design of jets for this purpose. At that time the Pennsylvania Railroad developed specifications which were widely used for a number of years. Recently, investigations of the steam-air jet have been conducted by Bituminous Coal Research, Inc., which have developed optimum design values for such devices. The results of the tests and details of application of steam-air jets are given in the paper.

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