Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 164
l curve uponindicator diagrams for the purpose of comparing it with the indicated curve, and thereby ascer-taining the condition of the engine. This may be done in several ways, two of which will beexplained in connection with Fig. 2390. The first step is to lay down the perfect vacuum line Q ITat… … diagram, in the same proportion that the spaces in clearances and passages increase the capacity ofthe cylinder. For instance, if the clearances, etc., equal .07 of the displacement of the piston (or ofits area multiplied by the length of stroke), then Q R = .07 x R IT. If it be desired that the…
Mechanical engineering -- Dictionaries
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