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diesel engine

diesel engine

6 2.8
An engine that burns diesel fuel to make power
  • noun
  • /ˈdiːzəl ˈɛnʤɪn/
  • Specialized
translation icon : motor diésel
  • Ballard is now developing a 275-horsepower bus engine that fits into the diesel engine compartment of a bus.
  • diesel engine fuel
  • emissions from diesel engines
  • diesel engine exhaust

Examples

  • In Switzerland, trains are electrically powered, whereas trucks and cars are usually powered by diesel engines.

    Academic text (2012)
  • Trucking is the lifeblood of the freight business in this country, and diesel engines are its beating heart.

    Academic text (2006)
  • With your new rail, I can triple my load capacity but I need more diesel engines.

  • From left: General Motors' 1.9-liter diesel engine powers small vehicles in Europe.

    Academic text (2006)
  • The rig was roaring away when he got there, the big diesel engine running flat out under load.

    Fiction book (2002)
  • There are two types of diesel engines used to power large ships: main propulsion and auxiliary.

    Academic text (2012)
  • The technology of light-duty, direct-injection diesel engines has advanced tremendously in the last decade or so.

    Academic text (2006)
  • The EPA is issuing new standards to cut emissions from locomotive and marine diesel engines by approximately 90%.

    Academic text (2012)
  • Propelling the truck is a 5-cylinder diesel engine, which generates 62 kilowatts of power.

    Academic text (1993)
  • The old ship had been refitted with a diesel engine to improve its fuel efficiency.

Synonyms

engine
vsdiesel engine
  • Specialized
1.0

A machine that uses fuel to make power for cars or machines

refers specifically to machines burning heavy oil rather than machines using any fuel
diesel
vsdiesel engine
  • Specialized
33 3.4

An engine that squeezes and heats air so fuel burns without a spark

focuses on fuel type rather than ignition method
diesel motor
vsdiesel engine
  • Specialized
1 3.5

An engine that runs on diesel fuel, used in trucks and ships

is the same idea expressed with an alternate everyday term
direct injection diesel engine
vsdiesel engine
  • Specialized
5.2

A diesel engine that injects fuel directly into the chamber where it burns

is the general type, not specifying fuel delivery method
direct injection diesel
vsdiesel engine
  • Specialized
5.5

An engine that sends diesel fuel straight into the part where it burns to use less fuel

is the broader machine type, not focused on its fuel delivery design

How Powerful

rocket engine
  • Specialized
5 3.6
jet engine
  • Specialized
14 3.7
engine
  • Specialized
1.0
diesel engine
  • Specialized
6 2.8
motor
256 2.7

Surface Forms

diesel engine singular

Morphology

diesel + engine

The meaning 'an engine that runs on diesel fuel' is directly and compositionally derived from 'diesel' (a type of fuel/engine) + 'engine' (a machine that converts fuel into mechanical energy). This noun–noun compound follows a transparent specification pattern common across languages, so a B1 learner who knows both constituents can readily infer the MWE's meaning.

Etymology

Diesel engine was named after the inventor Rudolf Diesel, who built a new kind of engine that runs on heavy oil. The parts diesel and engine give a clear picture: it is an engine that runs on 'diesel' fuel, so today the phrase means an engine that uses that fuel.