The internal combustion engine; a text-book for the use of students and engineers (1915)
Wimperis, Harry Egerton, 1876- · New York, D. Van Nostrand company · leaf 149
Fig. 41.—Obtaining Area by Mid-ordinate Rule. Area C D E counts aspositive ; area A B as negative. Mid-ordinate height of negative loopmust be subtracted from that of positive loop. 90. Effect of Engine Speed.—The Crosby indicator abovedescribed is well suited to gas engines running at normal … Fig. 42.—Indicator Diagram taken from a fast running Engine with a WeakIndicator Spring. When expansion curve is wavy, the I.H.P. cannotsafelv be determined from the diagram. speeds, but not to petrol engines, which sometimes run at2500 r.p.m. or even more, At speeds over 500 the effect (haf. v]…
Internal combustion engines
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