The steam engine and turbine; a text-book for engineering colleges (1911)
Heck, Robert Culbertson Hays, 1870- · New York, D. Van Nostrand company · leaf 204
hout their stroke; consequently, some throttlingis necessary, to prevent the wheels from letting go and slipping freely.In general, from a mechanical viewpoint, a nearly uniform drivingpressure, such as appears in diagram 34, Fig. 98, is better at low speedthan the kind of pressure variation that… … Fig. 98. — Unit Diagrams from Engineof Figs. 87 and 90, showing effectof throttling. Test 1 from Fig. 90;in tests 33, 34, and 35, cut-off is at0.875 of the stroke. 100-
Steam-engines · Steam-turbines
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