The steam engine and turbine; a text-book for engineering colleges (1911)
Heck, Robert Culbertson Hays, 1870- · New York, D. Van Nostrand company · leaf 432
cs. —As already stated in Art. (d),the valve must be released before the eccentric gets to its dead point;and in Art. (/) it is shown that an eccentric to drive exhaust valvesmust have some advance, usually 15 to 20 deg. This condition isrepresented in Fig. 278 I, where 8 has the minimum value 105… … Fig. 278. — Diagrams of Eccentric Setting. A very obvious way to increase the range of cut-off is to set theeccentric back, toward the crank, so that it will turn through a largerangle from the position for crank on dead center to that for latestrelease. In Fig. 278 II the negative advance or the…
Steam-engines · Steam-turbines
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