The Marine Steam Engine ...Longmans, 1899 - 519 páginas |
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Página 122
... valve , a small pass - valve F is fitted , by means of which the pressure on ... slide in and out of the adjacent pipe as changes of length take place . Fig ... valve is fitted , so that the water may be discharged by hand into the hot ...
... valve , a small pass - valve F is fitted , by means of which the pressure on ... slide in and out of the adjacent pipe as changes of length take place . Fig ... valve is fitted , so that the water may be discharged by hand into the hot ...
Página 136
... slide valve , instead of the sudden opening and closing assumed in theoretical diagrams In the non - condensing engine the back pressure line 136 THE MARINE STEAM - ENGINE.
... slide valve , instead of the sudden opening and closing assumed in theoretical diagrams In the non - condensing engine the back pressure line 136 THE MARINE STEAM - ENGINE.
Página 144
... valve wide open , or nearly so , and the pressure of steam then kept as high as possible in the slide casings . This statement , however , requires the qualification that the boiler pressure should never be kept lower than that ...
... valve wide open , or nearly so , and the pressure of steam then kept as high as possible in the slide casings . This statement , however , requires the qualification that the boiler pressure should never be kept lower than that ...
Página 167
... slide - valves , are worthy of notice . To secure high rates of expansion , separate valves , usually called ... valve being shown in Fig . 127. The steam enters the expansion valve casing , and when the valve is in such a position that ...
... slide - valves , are worthy of notice . To secure high rates of expansion , separate valves , usually called ... valve being shown in Fig . 127. The steam enters the expansion valve casing , and when the valve is in such a position that ...
Página 168
... valve , and the cut - off , therefore , sharper and more effective . Expansion gear . Expansion valves are worked by eccentrics on the crank - shaft , and the extent of the travel of the valve is regulated by a link , fitted with a sliding ...
... valve , and the cut - off , therefore , sharper and more effective . Expansion gear . Expansion valves are worked by eccentrics on the crank - shaft , and the extent of the travel of the valve is regulated by a link , fitted with a sliding ...
Otras ediciones - Ver todas
The Marine Steam Engine: A Treatise for Engineering Students, Young ... Richard Sennett Sin vista previa disponible - 2018 |
The Marine Steam Engine: A Treatise for Engineering Students, Young ... Richard Sennett Sin vista previa disponible - 2016 |
Términos y frases comunes
action air-pump amount angle arrangement auxiliary Belleville boiler bilge blades boilers bottom cause cent centre coal cock combustion chamber compound engines compression condenser connected considerable crank crank-shaft Crown 8vo curve diameter drain draught eccentric efficiency evaporation exhaust expansion engines Fahr feed-water fire fitted friction funnel furnace gases gauge gear gunmetal heating surface high-pressure cylinder holes horizontal Illustrations increased indicator diagram initial pressure jacket lever low-pressure cylinder manganese bronze marine engines mean effective pressure motion necessary obtained orifice paddle-wheel piston plates ports position practice prevent propeller pump quantity rate of expansion reduced revolutions per minute riveted Royal Navy safety valves screw sea-water shaft ship shown in Fig side slide-valve space speed square inch steam pipes steam pressure steel stokehold stroke suction surface condensers temperature triple expansion engines tubes vertical vessels volume water-tube boilers weight
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Página 142 - I call the steam vessel, must, during the whole time the engine is at work, be kept as hot as the steam that enters it ; first, by enclosing it in a case of wood, or any other materials that transmit heat slowly ; secondly, by surrounding it with steam, or other heated bodies ; and, thirdly, by suffering neither water, nor any other substance colder than the steam, to enter or touch it during that time...
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Página 142 - I intend, in many cases, to employ the expansive force of steam to press on the pistons, or whatever may be used instead of them, in the same manner as the pressure of the atmosphere is now employed in common...