Steam turbines; a practical and theoretical treatise for engineers and students, including a discussion of the gas turbine . illustration except that there wasusually a double row of buckets on the rim of each wheel. These wheels werepatented by Prof. Stumpf and developed with the assistance of Prof. Riedler. Thebuckets were cut into the rim of the wheel by a milling machine, and were arrangedto overlap each other like the shingles of a roof, instead of being placed one in frontof another as in a Pelton water wheel. Unusual attention was given to balancingthe wheels, which were in the form of
Steam turbines; a practical and theoretical treatise for engineers and students, including a discussion of the gas turbine . illustration except that there wasusually a double row of buckets on the rim of each wheel. These wheels werepatented by Prof. Stumpf and developed with the assistance of Prof. Riedler. Thebuckets were cut into the rim of the wheel by a milling machine, and were arrangedto overlap each other like the shingles of a roof, instead of being placed one in frontof another as in a Pelton water wheel. Unusual attention was given to balancingthe wheels, which were in the form of flat disks. Stumpf states that these diskswere balanced so accurately that the center of gravity came within .004 of thediameter from the geometric center. These disks were similar to the design inFig. 216. It is stated that such wheels were designed for a factor of safety of 5at a rim speed of 1200 feet per second. 260 THE STEAM TURBINE nozzle with respect to the stationary buckets. The nozzle isthe nearly square opening shown next to the first bucket, count-ing from the left. As shown here the steam flow will then be. Fig. 143. Sturtevant Turbine with the Wheel Removed to the Side to Show theArrangement of the Buckets. toward the right from the nozzle into the bucket opposite it onthe wheel. From this moving bucket the steam will be divertedback into the stationary bucket next to the nozzle and the steam
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyorkwiley, books
