diesel engine


Definition of diesel engine

: an internal combustion engine in which air is compressed to a temperature sufficiently high to ignite fuel injected into the cylinder where the combustion and expansion actuate a piston

Examples of diesel engine in a Sentence

Recent Examples on the Web

Health studies have shown that children who live near heavy traffic, and are exposed to particulate pollution from heavy trucks and diesel engines, develop higher incidences of health problems such as asthma. Patrick Sisson, Curbed, "Your online shopping is polluting this small town," 20 Nov. 2018 Traditionally, ships use diesel engines, gas turbines, or a combination of both. Aditi Shrikant, Vox, "The case against cruises," 15 Nov. 2018 In one way or another, diesel engines have been powering trains for over a century. David Grossman, Popular Mechanics, "First Hydrogen-Powered Trains Rolling in Germany," 19 Sep. 2018 The diesel engine uses diesel exhaust fluid, which is injected into the exhaust to reduce NOx emissions. Eric Bangeman, Ars Technica, "All SUV, all of the time: The Range Rover Sport reviewed," 12 July 2018 Aside from the fuel economy, the 1.6-liter turbo diesel engine was unnoticeable on the highway. Robert Duffer, chicagotribune.com, "Review: 2017 Chevy Cruze puts diesel back on track with great highway fuel economy," 2 May 2017 The industry easily reached a 2015 emissions goal of 130 grams of CO2 per kilometer by improving the efficiency of gasoline and diesel engines. David Mchugh, The Seattle Times, "Climate goals mean Europe will overtake U.S. in electric cars," 2 Oct. 2018 The first is Selective Catalytic Reduction (SCR) systems, which are specific to diesel engines and reduce the amount of nitrogen oxides (NOx) emitted by the vehicle. Megan Geuss, Ars Technica, "EU investigating German automakers, alleging collusion on emissions tech," 19 Sep. 2018 About 44 percent of cars sold in Western Europe last year were equipped with diesel engines, down from a peak of 56 percent in 2011, according to statistics from the European Automobile Manufacturers Association. Niclas Rolander, Bloomberg.com, "Now Volvo Says It Will Ditch Diesel in Europe," 16 May 2018

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

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First Known Use of diesel engine

1894, in the meaning defined above

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Statistics for diesel engine

Last Updated

11 Dec 2018

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Time Traveler for diesel engine

The first known use of diesel engine was in 1894

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More Definitions for diesel engine

diesel engine


English Language Learners Definition of diesel engine

: a type of engine that uses diesel fuel rather than gasoline and that is used especially in large vehicles (such as trucks and buses)

diesel engine


Kids Definition of diesel engine

: an engine in which the mixture of air and fuel is compressed until enough heat is created to ignite the mixture that uses diesel fuel instead of gasoline

More from Merriam-Webster on diesel engine

Britannica.com: Encyclopedia article about diesel engine

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