impeller

USAGE SUMMARY

The phrase "impeller" is correct and usable in written English.
It is typically used in technical contexts, particularly in engineering or fluid dynamics, to refer to a rotating component that imparts motion to a fluid. Example: "The pump's efficiency is largely determined by the design of the impeller."

✓ Grammatically correct

Engineering

Fluid Dynamics

Manufacturing

Human-verified examples from authoritative sources

Exact Expressions

39 human-written examples

The worn impeller is sold for scrap.Some 200 miles to the south, in Bushey, a suburb of London, another British firm is manufacturing high-tech tools for export.

The Economist

A 15-tonne impeller takes just a minute to cast but needs 11 days to cool.

The Economist

Kinetic pumps impart kinetic energy to the fluid by means of a rapidly rotating impeller.

Encyclopedia Britannica

A radial flow pump is commonly referred to as a straight centrifugal pump; the most common type is the volute pump, illustrated in Figure 4. Fluid enters the pump near the axis of an impeller rotating at high speed.

Encyclopedia Britannica

The impeller has vanes on both sides of the rim that rotate in a ringlike channel in the pump's casing.

Encyclopedia Britannica

Centrifugal compressors increase the kinetic energy of the gas with a high-speed impeller and then convert this energy into increased pressure in a divergent outlet passage called the diffuser.

Encyclopedia Britannica

Human-verified similar examples from authoritative sources

Similar Expressions

12 human-written examples

Michelle Chidoni, a spokeswoman for Mattel, said Barbie has been accessorized with speakers, motors, fiber optic clothing and an impeller-pump designed to push glitterized fluid through special wings.

The New York Times

A typical mechanical booster utilizes two figure-eight-shaped impellers, synchronized by external gears, rotating in opposite directions inside a stator.

Encyclopedia Britannica

In the second method, small amounts of finely ground high-grade ore are agitated in tanks by air or by mechanical impellers.

Encyclopedia Britannica

The gas is trapped between the impellers and the stator wall and transferred from the high vacuum to the fore vacuum side of the pump.

Encyclopedia Britannica

Sometimes this is accomplished by adding the chemicals just before the pumps, allowing the pump impellers to do the mixing.

Encyclopedia Britannica

Expert writing Tips

Best practice

When describing the function of a pump or compressor, specify the type of "impeller" (e.g., centrifugal, axial) for clarity.

Common error

Avoid using "impeller" interchangeably with terms like "turbine" or "rotor" without considering the specific context. An "impeller" is typically associated with pumps and compressors, while "turbines" are used for power generation.

Linguistic Context

The term "impeller" primarily functions as a noun, denoting a rotating component within a pump, compressor, or similar device designed to impart energy to a fluid. This is supported by Ludwig's examples, which consistently show it used to describe a physical part.

Expression frequency: Common

Frequent in

Encyclopedias

32%

News & Media

42%

Science

26%

Less common in

Formal & Business

0%

Social Media

0%

Wiki

0%

Ludwig's WRAP-UP

The word "impeller" is a noun that refers to a rotating component, particularly in pumps and compressors, responsible for moving fluids. According to Ludwig's AI analysis, it is grammatically correct and commonly used in technical contexts. The term appears frequently in encyclopedias, news media, and scientific publications, reflecting its formal and technical register. Common errors involve confusing it with similar terms like "turbine". Usage guidance emphasizes specifying the type of "impeller" for clarity. Related terms include "rotor" and "propeller".

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

pump rotor

Specifically refers to the rotating component within a pump.

rotor

Refers to a rotating part of a machine, similar to an "impeller" but more general.

rotating blade

A general term for any blade that rotates, similar to an "impeller".

propeller

Specifically refers to a rotating device that propels a vehicle through air or water.

centrifugal fan

A fan that uses a rotating "impeller" to increase the velocity of an airstream.

turbine

A rotary engine that extracts energy from a fluid flow.

compressor blade

The rotating component in a compressor that increases the pressure of a gas.

fan blade

A component of a fan that moves air by rotating.

vane

A flat or curved surface that rotates or is moved by air or liquid.

agitator

A device used to stir or mix substances.

FAQs

How does an "impeller" work in a centrifugal pump?

In a centrifugal pump, the "impeller" rotates, creating a vacuum that draws fluid into the pump. The rotating blades then impart kinetic energy to the fluid, increasing its velocity and pressure before it is discharged from the pump.

What are the different types of impellers?

Common types include centrifugal impellers, axial impellers, and mixed-flow impellers, each designed for specific applications and fluid types.

What is the difference between an "impeller" and a "turbine"?

An "impeller" imparts energy to a fluid, typically in a pump or compressor, whereas a "turbine" extracts energy from a moving fluid to generate power.

What materials are impellers typically made from?

Impellers are commonly made from materials like stainless steel, cast iron, or polymers, depending on the fluid being pumped and the operating conditions.