. The steam-engine and other heat-motors . Fig. 259. Fig. 260. The indicator-card and entropy diagram are represented inFigs. 193 and 194, but not to scale. The diagrams are lettered to. Fig. 261.—Valves of Diesel Engine. 497 GAS-ENGINES AND GAS-PRODUCERS. 499 indicate the same events. AB is the suction; BC is the compres-sion; CD is the preliminary and DB the after or isothermal heatlines due to the gradual combustion of the injected oil; EF is theadiabatic expansion line; and FB is the expansion line at constantvolume. Operating between 500 and 35 pounds per square inch,this motor has an eff
. The steam-engine and other heat-motors . Fig. 259. Fig. 260. The indicator-card and entropy diagram are represented inFigs. 193 and 194, but not to scale. The diagrams are lettered to. Fig. 261.—Valves of Diesel Engine. 497 GAS-ENGINES AND GAS-PRODUCERS. 499 indicate the same events. AB is the suction; BC is the compres-sion; CD is the preliminary and DB the after or isothermal heatlines due to the gradual combustion of the injected oil; EF is theadiabatic expansion line; and FB is the expansion line at constantvolume. Operating between 500 and 35 pounds per square inch,this motor has an efficiency ranging between 36 and 45%. Thefollowing data are from the Journal of the A. S. N. E., November,1905: Date Time Duration, minutes Diam. of cylinders, inches Stroke of pistons, feet Revs, per min Jacket-water per min Initial temp, of jacket-water, ° F Final temp, of jacket-water, ° F Temp, of outside air, ° F Temp, of exhaust-gases, ° F Analysis of exhaust-gases: C02 N Air Oil used, pounds Oil used per hour, pounds Blast pressure, atmospheres Max. pres. shown by indicator dia- jgrams in pounds per sq. in j , pounds per square inch: On first piston On second pis
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