The N.A.C.A. Photographic Apparatus for Studying Fuel Sprays from Oil Engine Injection Valves and Test Results from Several Researches (1928)
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have proved to be successful. The present spray-photography apparatus, so far as is known, was the first apparatus ever built capable of recording by a series of pictures the growth of oil sprays. A diagramatic lay- out of the apparatus is shown in Figure 1, and a general view is shown in Figure 2.… … FIG. 2.—GENERAL VIEW OF SPRAY-PHOTOGRAPHY APPARATUS reflector for focusing the light on the moving oil spray. Figures 1 and 2 show the transformer and kenotron rectifying tubes, by means of which the 25 condensers are charged to 30,000 volts through the rotating distributor switch. One terminal of…
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