Hutton, Frederick Remsen, 1853-1918 · New York, J. Wiley & sons; London, Chapman & Hall, limited · leaf 233
a lap, then, at the dead-centre of the piston, the valve shouldbe distant from its central position a distance equal to suchlap, and the radius vector for a horizontal engine, which has 178 MECHANICAL ENGINEERING OF POWER PLANTS. been assumed in all this discussion, should have a value equalto this… … sents the lap, if the figure is drawn full size. If the enginehas lead as well as lap, the valve must be distant from its cen-tral position a distance equal to the sum of the lap and thelead. The radius vector at the dead-centre must then have avalue represented by Oy when xy is the lead (Fig.…
Mechanical engineering · Steam power plants
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