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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 ?
Typically, the best solution for dealing with porosity is to reduce hydrogen and oxides prior to casting via a treatment combining automated cleaning flux addition with rotary impellor degassing.
Limited Tenders are invited for Purchase Of Backward Curved Bladed Impellor Of Silo Vent Fan
We found that the impellor type pumps damaged the capsules, while a subsequently installed diaphragm pump could not work with the sometimes small amount of fluid that is present.
The faster the flow, the faster the impellor spins and the more light is obstructed by the impellor.
The latest high-performance centrifugal chiller has three characteristics: a high-efficiency compressor (aerodynamic performance is improved by the impellor and static channel), high-efficiency heat exchangers and high-level arithmetic control.
Discharge was rated at the stations using manual current measurements from a Columbia impellor meter approximately every second day (n = 24 West, n = 25 East) throughout the season, and resulted in well-constrained rating curves ([r.
Mixers can be specified with a wide range of mixing devices to suit the application, these include patented impellor designs, turbines, anchors, ribbons and twin movement options.
Magnetic levitation is the application of passive and active magnetic fields to suspend and control a titanium impellor that gently sweeps the blood through the pump, augmenting the function of the patient's left ventricle.
As an alternative to the standard cone and shear plate configuration, Lee can now offer an impellor in place of the cone in the head assembly for additional pumping power.
Revolving at a rate of 500 to 1,600 prm, centrifugal force directs the material from the impellor and casts it at speeds exceeding 300 fps against a stationary, abrasive resistant anvil.