impeller

American  

[im-pel-er] / ɪmˈpɛl ər /

noun

impellers plural

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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Other Word Forms

Noun Inflected Forms

• impellers
  plural

Etymology

Origin of impeller

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

Example Sentences

See Examples For:

impeller impellers

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

Bits that get past the dustpan clatter by the impeller with a clang that can be felt throughout the ship.

From New York Times ● Aug. 20, 2012

"I guess she blew an impeller," the youth answered.

From Code Three by Raphael, Rick

This results in low-density impellers, which “can deform and interfere with the fuel pump body” over time, regulators said, leading to an inoperative fuel pump.

From Seattle Times ● Dec. 21, 2023

These have been chewed up in testing along with the project's supply of impellers.

From BBC ● Jun. 12, 2015

The fix is very simple - a more robust shaft and bearings, but the exquisite impellers take weeks to manufacture.

From BBC ● Jun. 12, 2015

Carry extra raw-water impellers and the tools and seals necessary to change them.

From Time Magazine Archive

The whine of his impellers sounded a strong down-Doppler as his ripped past me, nose dropped a good thirty degrees and dragging every knot he could get out of his 'copter.

From Modus Vivendi by Berryman, John