impeller

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impeller

[im′pel·ər]
(mechanical engineering)
The rotating member of a turbine, blower, fan, axial or centrifugal pump, or mixing apparatus. Also known as rotor.

impeller

impeller
The rotating member in a pump consisting of a disk with vanes attached to it; moves liquid by accelerating the liquid radially outward.

impeller

impeller
impeller
impeller
i. A part of a gas turbine engine used in the compressor section. It consists of a forged disc with radially opposed vanes on one or both sides, forming a convergent passage in conjunction with the compressor casing.
ii. A device that imparts motion to a fluid; specifically, in a centrifugal compressor, a rotary disc that is faced on one or both sides with radial vanes and accelerates the incoming fluid outward into a diffuser. Also called an impeller wheel.
iii. A vaned disc, which picks up and accelerates the air outwardly to increase the pressure in a supercharger of a reciprocating engine.
References in periodicals archive ?
A refinement of the degassing process has been the rotary impellor. Zeliznak explains that this technique introduces into the melt a large number of small gas bubbles which rise slowly permitting a longer reaction time.
Nonflam collectors are a highly effective dust removal system using a water-filled tank through which dust and residues are drawn by an impellor fan.
They can be specified with a wide range of mixing devices to suit the application; these include patented impellor designs, turbine, anchors, ribbons and twin movement options.
Invasive plant life can foul propellers, jam impellors and cause bilge pump failure.