Valves and Valve Gear Mechanisms (Classic Reprint)

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Excerpt from Valves and Valve Gear MechanismsThe scope of this volume is limited to an examination of types of those gears in which there is one, and only one, position of the valve for a given position of the crank. In other words, the position of the valve is a function of a single variable only, namely the crank angle. A few gears are however described incidentally in which a governor is included in the mechanism operating the valve. In this case there is more than one position of the valve for a given position of the crank. The valve position is, in fact, a function of two variables, namely the crank angle and the time, and the valve position cannot be set out on a drawing from kinematic considerations alone. The proper examination of gears of this kind requires a study of the dynamics of governors, and this is not included in the present volume.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.