Ripper, William, 1853-1937 · London, New York [etc.] : Longmans, Green and co. · leaf 249
eftbrt has been exeited ;and this area is exactly equal (neglecting friction) to the work doneupon the piston during a single stroke, as given by the indicatordiagram. If S = stroke of piston, and P = mean pressure on piston, then S X - = path of crank-pin during one stroke of piston, and MK. 2mean… … Fig. 266. the load constant); for unless the mean effort and the mean resistanceare equal, there must be a change of speed of revolution of the engine,the speed increasing or decreasing as the effort is greater or less thanthe resistance. We have seen that, though the resistance is uniform, the…
Steam-engines
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