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1. One that impels, as a rotating device used to force a fluid in a desired direction under pressure.
2. A rotor or rotor blade.


1. (General Engineering) the vaned rotating disc of a centrifugal pump, compressor, etc
2. (General Engineering) a compressor or centrifugal pump having such an impeller


(ɪmˈpɛl ər)

1. one that impels.
2. a rotor for transmitting motion, as in a centrifugal pump, turbine, or fluid coupling.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.impeller - the blade of a rotor (as in the compressor of a jet engine)impeller - the blade of a rotor (as in the compressor of a jet engine)
vane, blade - flat surface that rotates and pushes against air or water
rotor - rotating mechanism consisting of an assembly of rotating airfoils; "there are horizontal rotors on a helicopter or compressor rotors in a jet engine"
References in periodicals archive ?
Once the accuracy of the model was confirmed it was then possible to introduce design improvements to the impellers, the labyrinth seals, the inter-coolers, the bearings and the shaft itself.
Tender are invited for Service of a general overhaul of the impeller mills, repair impellers and repair shafts, for thermal power plants REK Bitola.
com)-- Globe Marine is pleased to introduce another new marine impeller model added to its line of world-class Globe Run-Dry[R] Impellers -- the only flexible impeller in the world that is able to run-dry for up to 15 minutes.
This paper adopts TurboSystem (a set of software applications and software features for designing turbomachinery in the ANSYS Workbench environment) to create the impeller flow field which is impellers with 0[degrees], 2.
Available with various impellers for high flow, low shear, gas dispersion, and solids suspension mixing, the mixers can be equipped with motors ranging from 1/12 to 1/2 HP in various voltages, straight or right angle drives, and shafts from 3/4" to 1-1/4" dia.
Needing to replace two double suction impellers with 30-in.
In addition, we conducted steady-state thermal testing to measure the convective thermal resistance (average heat transfer coefficient) of the rotating impellers.
Turbines are multi-blade impellers with small blades that used at high speeds.
The pumps feature open impellers with two times the wear area of a closed design, which optimizes the performance of the pump's open impeller and allows renewable performance.
Improved hard-wearing features include new wear resistant impellers for the Minex and Minette drainage pumps, a wear resistant coating of polyurethane for all sludge pumps and a polyurethane-option for Minor to Matador drainage pumps.
Impellers are usually manufactured from low-alloy steels.
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.