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 series of commercial sieves were modified to make up the flow plenum from which the impeller drew air.
i] when the [pi] is omitted, the group becomes the impeller Reynolds number that calculated by followed equation:
Needing to replace two double suction impellers with 30-in.
Each impeller was spin tested before being mounted onto the new rotor shaft
As a result of impeller replacement, capacity of the second hydropower unit will increase by 10 MW to reach 95 MW.
Globe Marine Run-dry[R] Impeller Model #270 is made with a brass core and is designed for water transfer applications.
Use special tools, provided by the manufacturer, to loosen an impeller on a pump.
The outlet width to passage width ratio of an impeller is an important factor in this regard.
The pumps are available with SuperVortex impellers for applications with required low operating hours, dry matter content above 5 per cent, and a spherical free passage up to 100 mm, or with the S-tube impeller for applications with required high operating hours, dry matter content up to 3 per cent, and a spherical free passage up to 160 mm.
1988) presented correlations for power, flow and shear characteristics of a 6-bladed disc turbine, a hydrofoil axial flow impeller (A310) and a pitch bladed turbine, measured through an automated LDV system.
The S-tube impeller from Grundfos sets new standards for wastewater hydraulic design.