Hutton, Frederick Remsen, 1853-1918 · New York, J. Wiley & sons; London, Chapman & Hall, limited · leaf 251
CAL ENGINEERING OF POWER PLANTS. duction of the clearances and the shortening of the passages.For very large marine engines, in order to diminish thediameter of the valves and at the same time to shortencertain connections, two sets of piston-valves are used, work-ing together from a common… … Fig. 163. hand. A favorite form for such piston-valves is rectangularor square instead of round. Round pistons are easier tomake and to pack. 104. Pressure-plate Systems.—The pressure-plate sys-tem aims to secure the release of the valve from unbalancedsteam-pressure by receiving that pressure on a…
Mechanical engineering · Steam power plants
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