flywheel
Noun: A flywheel is a heavy wheel attached to a rotating shaft. Its primary function is to store rotational energy (kinetic energy) due to its high moment of inertia. By storing this energy, it helps to resist changes in rotational speed, thereby smoothing out the operation of an engine or machine by making its rotation more consistent.
The word flywheel is used to describe a specific mechanical component. It is a countable noun. * The flywheel in a car's engine helps to keep the crankshaft turning smoothly between the power strokes of the pistons. * Engineers increased the mass of the flywheel to provide greater rotational stability for the generator. * A key advantage of a flywheel energy storage system is its ability to deliver power very quickly.
- Flywheel effect: This is a metaphorical use describing a process that is slow to start but builds momentum and becomes self-sustaining over time, much like a physical flywheel requires energy to start spinning but then maintains its motion efficiently.
- The company's investment in customer satisfaction created a positive flywheel effect, where happy customers led to more referrals and greater growth.
- In physics and engineering contexts, the performance of a flywheel is discussed in terms of its moment of inertia and its capacity for kinetic energy storage.
- Flywheel (verb): Rarely used as a verb, meaning to fit or equip with a flywheel.
- Balancer: A device for reducing vibration, often used in a similar context but not identical to a flywheel.
- Governor: A device that automatically regulates speed, which is a different type of regulator than a flywheel.
- Regulator (in the specific context of smoothing rotational motion)
- Inertia wheel
- Energy storage wheel
- Flywheel housing: The protective casing that encloses the flywheel.
- Flywheel magneto: A type of magneto used in small engines where the flywheel itself contains permanent magnets.
There are no common idioms that feature the word flywheel. Its use is almost exclusively technical or metaphorical as described in "Advanced Usage."
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regulator consisting of a heavy wheel that stores kinetic energy and smooths the operation of a reciprocating engine
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