compression ignition

American  

noun

1. ignition of engine fuel by the heat of air compressed in the cylinders into which the fuel is introduced.

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Other Word Forms

• compression-ignition adjective

Etymology

Origin of compression ignition

First recorded in 1925–30

Example Sentences

The Skyactiv-X adds a twist, however, because it denotes a new Mazda technology that uses both spark and compression ignition in gasoline engines.

From Fox News

Saudi Aramco is working on gasoline compression ignition which mixes fuel and air more effectively prior to combustion, resulting in lower nitrogen oxide and soot emissions and a 30 percent improvement in fuel economy.

From Reuters

But a third, ultra-lean mode kicks in to achieve peak efficiency, with the spark plug managing the compression ignition so the driver doesn’t notice what’s happening under the hood.

From The Verge

And the engine’s changing modes were largely imperceptible, something Mazda’s engineers are no doubt proud of in the pursuit of producing a homogeneous charge compression ignition engine.

From The Verge

And compression ignition engines also suffer in terms of refinement compared to spark ignition cars, Mazda engineers say, which they think would turn off prospective drivers who aren’t as swayed by fuel economy claims as others.

From The Verge