Definition of internal combustion engine in English:

internal combustion engine


  • An engine which generates motive power by the burning of petrol, oil, or other fuel with air inside the engine, the hot gases produced being used to drive a piston or do other work as they expand.

    • ‘For more information on the internal-combustion engine, see How Car Engines Work.’
    • ‘In the distance a cloud of sand and dust floated skyward and the repeated backfiring of an internal-combustion engine echoed over the rolling dunes.’
    • ‘The internal-combustion engine has replaced steam-power for agricultural machinery, and improved transport has led to the development of a world market for some agricultural products.’
    • ‘The energy bill also includes a new tax credit for buyers of hybrid cars, which combine an electric motor with an internal-combustion engine.’
    • ‘Another theory put forward on Sunday is that these extra-terrestrials have developed a way to travel without the internal-combustion engine, a fact which - if it got out - could threaten the very heart of the American economy.’
    • ‘This doesn't mean that consumers will be able to buy fuel-cell cars anytime soon, or that obituaries should be written for the internal-combustion engine.’
    • ‘In a parallel hybrid, the internal-combustion engine and transmission are coupled to an electric motor/generator, with a continuing link to the drive wheels.’
    • ‘In an internal-combustion engine, the pressure produced by expanding gases acts through the pistons and connecting rods to push against the crankshaft, producing torque.’
    • ‘The fuel cell has the potential to eventually replace the internal-combustion engine, because it's far more than just the best environmental choice.’
    • ‘The previous tech advance started at the end of the 19th century and was due mainly to the development of both the electric motor and the internal-combustion engine.’
    • ‘When powered by hybrid technologies that combine electricity with the internal-combustion engine, such light vehicles will produce enormous oil savings.’
    • ‘The U.S., in turn, became the world's preeminent power in the 20th century because it was the first country to harness its vast oil reserves with the internal-combustion engine.’
    • ‘In a typical gasoline internal-combustion engine, fuel enters the combustion chamber when an inlet valve opens.’
    • ‘In the book, he proposed drastic measures to limit emissions, including elimination of the internal-combustion engine.’
    • ‘If the camshaft is the brain of an internal-combustion engine, then the IQ of a modern engine is certainly much higher than it was when solid lifters ruled the streets and dragstrips.’
    • ‘The common internal-combustion engine would have efficiency in the range of 20 to 25 percent.’
    • ‘A hybrid car uses both an internal-combustion engine and an electric motor.’
    • ‘Oxygen is the most important gas as far as any internal-combustion engine is concerned.’
    • ‘It has been said that the camshaft is the ‘brain’ that regulates the flow of fuel and air through an internal-combustion engine by opening and closing the valves.’
    • ‘The internal-combustion engine goes the way of the covered wagon because vehicles powered by fuel cells meet all cost and performance requirements.’


internal combustion engine