impeller

American  

[im-pel-er] / ɪmˈpɛl ər /

noun

1. a person or thing that impels.

2. a rotor for transmitting motion, as in a centrifugal pump, blower, turbine, or fluid coupling.

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impeller British  

/ ɪmˈpɛlə /

noun

1. the vaned rotating disc of a centrifugal pump, compressor, etc

2. a compressor or centrifugal pump having such an impeller

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Etymology

Origin of impeller

First recorded in 1675–85; impel + -er ¹

Example Sentences

According to documents published by the National Highway Traffic Safety Administration, the fuel pump impeller used for in 2017-2020 Acura and Honda vehicles was improperly molded.

From Seattle Times • Dec. 21, 2023

Parts of which household device may include the airfoil propulsion, Helmholtz cavity, and impeller?

From Slate • Sep. 14, 2023

In minutes, he found the problem: A Ruffles potato chip bag had clogged the impeller.

From Washington Times • Oct. 6, 2018

Specifically, the impeller that drives the fluid into the motor has turned out to be so efficient that it has put intolerable loads on the shaft and bearings that support it.

From BBC • Jun. 12, 2015

A. B. Wood, of the sewerage and water department, had already designed and patented a centrifugal pump impeller adapted to the handling of sewerage containing trash.

From The Industrial Canal and Inner Harbor of New Orleans History, Description and Economic Aspects of Giant Facility Created to Encourage Industrial Expansion and Develop Commerce by Dabney, Thomas Ewing