Creighton, William Henry Paul, 1859- · New York, J. Wiley & sons; [etc., etc.] · leaf 417
e, A. The friction of the valve is a variable quantity. It varieswith the construction of the valve, the amount of wear and thelubrication. In the diagram, the unbalanced steam pressure onthe end of the valve stem, the friction and the weight of thereciprocating parts is indicated by that part of… … Fig. 215. Fig. 216. see that these ordinates pass through zero value at 90° and 300°approximately. The corresponding lever-arms are shown in Fig. 215, b\C\being the arm for the force in the eccentric-rod when the eccentricis on the dead center; b2c2 being the arm for the force in therod when the…
Steam-engines · Heat-engines
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