Handbook for machine designers, shop men and draftsmen (1916)
Halsey, Frederick A. (Frederick Arthur), 1856-1935 · New York, McGraw-Hill book company, inc.; [etc., etc.] · leaf 476
g. This is ex-plained by the increased mechanicalefficiency of the engine when heatedair was used. Indicator and braketests showed large friction lossesdue to the low temperatures whenunheated air was used—losses thatgrew markedly less when the airwas heated. The tests showed thefuel cost of the… … Fig. 17.—Nordberg construction of piston rod for moderate air pressures. Details of Air Compressors Piston and piston-rod constructions for large blowing engines underlight air pressure, as used by the Nordberg Mfg. Co., (Amer, Mach.,Feb. 7, 1907) are shown in Figs. 15 and 16. The pistons. Fig.…
Machine design
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