The steam engine and turbine; a text-book for engineering colleges (1911)
Heck, Robert Culbertson Hays, 1870- · New York, D. Van Nostrand company · leaf 348
Fig. 188. — Outline of Engine Shaft. In Fig. 189 is shown a series of force polygons like Fig. 155 III, takenat equal intervals around the crank circle, and determining the pressureBi at the main bearing of Fig. 188. These diagrams, Uke all the others. … ==r=::^ ~^-^^_ ^--^ LBS. P ER C3Q.IN. < a/_\ 180 ,- — 1 ^30^^ ■~~-~ ^ _360 Fig. 189. — Pressures on the Main Bearing. show force per square inch of piston. The weight, W/A, is about15 lb., of which 9 lb. are carried at Oi, and 6 lb. at O2; Fb/A is 17 lb.,equivalent to 17 X 1.17 = 20 lb. at d;…
Steam-engines · Steam-turbines
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