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An impeller (also written as ''impellor''"impeller, n.". OED Online. March 2013. Oxford University Press. 20 March 2013 (). or ''impellar'') is a rotor used to increase (or decrease in case of turbines) the pressure and flow of a fluid.== In pumps ==An impeller is a rotating component of a centrifugal pump, usually made of iron, steel, bronze, brass, aluminium or plastic, which transfers energy from the motor that drives the pump to the fluid being pumped by accelerating the fluid outwards from the center of rotation. The velocity achieved by the impeller transfers into pressure when the outward movement of the fluid is confined by the pump casing. Impellers are usually short cylinders with an open inlet (called an eye) to accept incoming fluid, vanes to push the fluid radially, and a splined, keyed or threaded bore to accept a drive-shaft. The impeller made out of cast material in many cases may be called ''rotor'', also. It is cheaper to cast the radial impeller right in the support it is fitted on, which is put in motion by the gearbox from an electric motor, combustion engine or by steam driven turbine. The ''rotor'' usually names both the ''spindle'' and the impeller when they are mounted by bolts.
An impeller (also written as ''impellor''〔"impeller, n.". OED Online. March 2013. Oxford University Press. 20 March 2013 ().〕 or ''impellar'') is a rotor used to increase (or decrease in case of turbines) the pressure and flow of a fluid.
== In pumps ==
An impeller is a rotating component of a centrifugal pump, usually made of iron, steel, bronze, brass, aluminium or plastic, which transfers energy from the motor that drives the pump to the fluid being pumped by accelerating the fluid outwards from the center of rotation. The velocity achieved by the impeller transfers into pressure when the outward movement of the fluid is confined by the pump casing. Impellers are usually short cylinders with an open inlet (called an eye) to accept incoming fluid, vanes to push the fluid radially, and a splined, keyed or threaded bore to accept a drive-shaft.
The impeller made out of cast material in many cases may be called ''rotor'', also. It is cheaper to cast the radial impeller right in the support it is fitted on, which is put in motion by the gearbox from an electric motor, combustion engine or by steam driven turbine. The ''rotor'' usually names both the ''spindle'' and the impeller when they are mounted by bolts.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「An impeller (also written as ''impellor''"impeller, n.". OED Online. March 2013. Oxford University Press. 20 March 2013 (). or ''impellar'') is a rotor used to increase (or decrease in case of turbines) the pressure and flow of a fluid.== In pumps ==An impeller is a rotating component of a centrifugal pump, usually made of iron, steel, bronze, brass, aluminium or plastic, which transfers energy from the motor that drives the pump to the fluid being pumped by accelerating the fluid outwards from the center of rotation. The velocity achieved by the impeller transfers into pressure when the outward movement of the fluid is confined by the pump casing. Impellers are usually short cylinders with an open inlet (called an eye) to accept incoming fluid, vanes to push the fluid radially, and a splined, keyed or threaded bore to accept a drive-shaft. The impeller made out of cast material in many cases may be called ''rotor'', also. It is cheaper to cast the radial impeller right in the support it is fitted on, which is put in motion by the gearbox from an electric motor, combustion engine or by steam driven turbine. The ''rotor'' usually names both the ''spindle'' and the impeller when they are mounted by bolts.」の詳細全文を読む
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