Steam engines, prepared in the Extension division of the University of Wisconsin (1919)
Shealy, Edward Marvin · New York, McGraw-Hill · leaf 171
two ends of the cylinder differently since thevalve is moved bodily either to the right or to the left. If thevalve stem is too long the steam lap on the head end is increased,which delays admission and hastens cut-off on the head end, as il-lustrated in Fig. 93a. The valve stem being too long also… … Fig. 936. from those produced on the head end. The steam lap on thecrank end is reduced, which hastens admission and delays cut-off,while the crank end exhaust lap is increased, which delays releaseand hastens compression. The changes in events produced by shortening the valve stemwill be the same…
Steam-engines
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