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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 ?
The fan testing apparatus, shown in Figure 2, allowed for the flow rate through the impeller to be restricted and the pressure just upstream of the impeller to be measured.
The on going demand for the improved impeller designs usually comes from the users of industrial mixing equipment when the vessels are to be designed for new plants or improvement in the existing design is desired for enhancing quality, capacity, process efficiency and energy efficiency [5].
Special seal eliminates fluid leakage along impeller shaft
impeller, Tech Cast needed to generate a 3-D drawing for production of the mold.
impeller,pump shaft, washer, adjustable washer, gland, lantern ring, liqiud reflecter, bearing housing de, bearing housing nde, shaft sleeve(s side), shaft
Large centrifugal impeller compressors are commonplace throughout the petrochemical sector, where they usually operate on a continuous duty basis.
Features include: stainless steel strainer, shaft, impeller, outlet and hardware for maximum corrosion resistance: mechanical seals in enclosed pressure compensated oil chamber; nitride hardened 410 stainless steel impeller for abrasive applications: tandem tungsten carbide/tungsten carbide and tungsten carbide/tungsten carbide mechanical seals; field adjustable nitrile rubber-lined diffuser/wearplate optimizes efficiency throughout the life of the pump; and equipped with sacrificial zinc anodes for maximum life in a saline fluid environment.
21, 2014 /PRNewswire/ -- The WM-PC Series plastic water meter by Assured Automation is an impeller style meter available in sizes 1/2" to 1-1/2" with a dry type register for use in residential and commercial applications.
Power Machines OJSC has won a contract to manufacture and supply a hydro turbine impeller for the second hydropower unit of Ust-Kamenogorsk HPP in Kazakhstan, increasing capacity at the project by 10MW, the press service of the company said.
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.
The victim and two contract workers were attempting to remove an impeller that was seized onto the threaded shaft of a centrifugal pump.