The Marine Steam Engine ...Longmans, 1898 - 519 páginas |
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Página 4
... allow the necessary oscillation to suit the motion of the crank . The trunnions are hollow , and the steam is admitted to and exhausted from the cylinders through them . In this type of engine space and weight have been economised as ...
... allow the necessary oscillation to suit the motion of the crank . The trunnions are hollow , and the steam is admitted to and exhausted from the cylinders through them . In this type of engine space and weight have been economised as ...
Página 6
... 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 - ENGINE.
... 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 - ENGINE.
Página 7
... allow direct engines to be fitted . In these the gearing is left out , and the crank - shaft con- nected direct to the screw shafting . In many marine engines at the present day , even of the largest size , the mean piston speeds are as ...
... allow direct engines to be fitted . In these the gearing is left out , and the crank - shaft con- nected direct to the screw shafting . In many marine engines at the present day , even of the largest size , the mean piston speeds are as ...
Página 10
... allow for considerable expansion at full power , and the boilers were fitted with superheaters . The average weight of the machinery of this type , including the water in boilers and condensers , was about 3 cwts . per I.H.P. Compound ...
... allow for considerable expansion at full power , and the boilers were fitted with superheaters . The average weight of the machinery of this type , including the water in boilers and condensers , was about 3 cwts . per I.H.P. Compound ...
Página 28
... allowed to exceed three to four times that of sea - water , and at this density the boiling point at atmospheric ... allowing for this , more accurate formulæ are L = · 966 71 ( T - 212 ) and H = 1082 + 305 T. - contained in a cylinder ...
... allowed to exceed three to four times that of sea - water , and at this density the boiling point at atmospheric ... allowing for this , more accurate formulæ are L = · 966 71 ( T - 212 ) and H = 1082 + 305 T. - contained in a cylinder ...
Términos y frases comunes
action air-pump amount angle arrangement auxiliary Belleville boiler bilge blades boilers bolts bottom cause cent centre coal cock combustion chamber compound engines compression condenser connected considerable crank crank-shaft Crown 8vo curve diameter 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 hydrometer Illustrations increased indicator diagram jacket length lever low-pressure cylinder main engines manganese bronze mean effective pressure motion necessary obtained ordinary orifice paddle-wheel piston plates ports position practice prevent propeller pump quantity rate of expansion reduced revolutions per minute riveted Royal Navy screw sea-water shaft ship shown in Fig side slide-valve space speed square inch steam pipes steam pressure steel stokehold stroke suction sufficient surface condensers temperature triple expansion engines tubes vertical vessels volume water-tube boilers weight zinc
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