and over. The actual velocity ure lower than the boiler pressure, but with which compressed air at five atmos- the exhaust injector is a practical suc- pheres is discharged through a short cess. That we may exhaust steam from pipe is 658 feet per second, and at ten an engine and, by means of such… … FIG. 10. indeed a mystery, and it is fair to assume ure, and just in proportion as the density increases does its resistance to move- that equally valuable and surprising re- ment increase. This is one of the limi- sults may be obtained from the induced air-injector. tations to the pneumatic…
Engineering
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