flywheel

noun

fly·wheel | \ ˈflī-ˌhwēl

Definition of flywheel

: a heavy wheel for opposing and moderating by its inertia any fluctuation of speed in the machinery with which it revolves also : a similar wheel used for storing kinetic energy (as for motive power)

Did You Know? Example Sentences Learn More about flywheel

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Did You Know?

A heavy wheel attached to a rotating shaft, a flywheel smooths out delivery of power from a motor to a machine. The inertia of the flywheel moderates fluctuations in the speed of the engine and stores the excess energy for intermittent use. In automobile engines, the flywheel smooths out the pulses of energy provided by combustion in the cylinders, and provides energy for the compression stroke of the pistons. In power presses, the punching, shearing, and forming are done in a fraction of the operating cycle. During the rest of the cycle, the speed of the flywheel is built up by a comparatively low-powered motor, and most of the required energy for the cycle is provided by the flywheel.

Examples of flywheel in a Sentence

Recent Examples on the Web

The motor is about the size of a small pizza, and fits nicely into the bellhousing, the bit of the transmission that covers the flywheel and the clutch. — Alex Davies, WIRED, "A Very Fast Spin Through the Hills in a Hybrid Porsche 911," 10 June 2019 To increase or decrease the heat on an Argentinian-style parrilla grill, like the Grillworks or NorthFork, simply raise or lower the grill grate with the flywheel. — Steven Raichlen, New York Times, "Grilling Turns Back to an Ancient Fuel: Wood," 29 June 2018 The Pista sheds nearly 200 pounds compared with the standard 488 GTB road car—almost 40 pounds from the engine alone (titanium con-rods, lightweight flywheel). — Dan Neil, WSJ, "I Drove a Screaming Fast Ferrari Among Ordinary Cars," 21 Feb. 2019 The flywheel gives pedaling a realistic sense of inertia. — James Lynch, Popular Mechanics, "PM Approved: Kickr Smart Bike Trainer," 29 Jan. 2019 Second, the goal is a flywheel, or virtuous circle. — Steven A. Cohen And, WSJ, "Models Will Run the World," 19 Aug. 2018 The Verge explores the latest developments in energy storage, from those giant batteries to infinitely spinning flywheels to bottling gas in underground caverns. — Angela Chen, The Verge, "Why the future of the power grid depends on giant batteries," 14 Aug. 2018 The brainchild of Brendan McCarthy, a Long Island fishing guide, this new kid on the block comes with a V-bar grate that raises and lowers with a flywheel. — Steven Raichlen, New York Times, "Cooking Over Wood: A Guide to the Grills," 29 June 2018 Although economic flywheels played an important role, the story of how the internet became centralised is more complex. — The Economist, "More knock-on than networkThe story of the internet is all about layers," 28 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'flywheel.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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More Definitions for flywheel

flywheel

noun

English Language Learners Definition of flywheel

: a heavy wheel that is part of a machine and that controls the speed of machinery

See the full definition for flywheel in the English Language Learners Dictionary

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flywheel

Definition of flywheel

Did You Know?

Examples of flywheel in a Sentence

First Known Use of flywheel

English Language Learners Definition of flywheel

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