The Marine Steam Engine ...Longmans, 1899 - 519 páginas |
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Página vii
... increased , as in the writer's opinion ample illustration is essential to the proper understand- ing of written descriptions of engineering details . The illustra- tions have generally been specially prepared for the work , and ...
... increased , as in the writer's opinion ample illustration is essential to the proper understand- ing of written descriptions of engineering details . The illustra- tions have generally been specially prepared for the work , and ...
Página 4
... increased to from 10 to 15 lbs . per square inch above the atmosphere . Abandonment of side - lever engines . - Attempts were soon made to reduce the space required by the machinery , and the side - levers were abandoned and direct ...
... increased to from 10 to 15 lbs . per square inch above the atmosphere . Abandonment of side - lever engines . - Attempts were soon made to reduce the space required by the machinery , and the side - levers were abandoned and direct ...
Página 6
... necessary . Before long , however , such improvements in workmanship and mechanical details were effected , that the speeds both of piston and of revolution could be sufficiently increased to allow direct engines 6 THE MARINE STEAM - ...
... necessary . Before long , however , such improvements in workmanship and mechanical details were effected , that the speeds both of piston and of revolution could be sufficiently increased to allow direct engines 6 THE MARINE STEAM - ...
Página 7
... increased even beyond this , in order to attain increased economy . Horizontal engines . The paddle - wheel engines were either vertical or inclined ; but when the screw propeller was introduced , and it became possible to place the ...
... increased even beyond this , in order to attain increased economy . Horizontal engines . The paddle - wheel engines were either vertical or inclined ; but when the screw propeller was introduced , and it became possible to place the ...
Página 10
... increased , especially in the larger ships in which a long stroke could be obtained . With this type of engine the ... increased from 30 or 35 lbs . to 60 lbs . , while cylindrical boilers were fitted to safely carry the increased ...
... increased , especially in the larger ships in which a long stroke could be obtained . With this type of engine the ... increased from 30 or 35 lbs . to 60 lbs . , while cylindrical boilers were fitted to safely carry the increased ...
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...