With so much intensive labor heavily reliant on diesel engines, the future of diesel engine technology is limitless. As the world keeps moving forward, environmentally-friendly diesel vehicles may become the best option for a sustainable daily driver that’s strong, efficient, and extremely durable. An important advancement with diesel engines is improved fuel efficiency with fewer emissions. In one study, diesel vehicles show 24% greater fuel efficiency in city driving and 29% on the highway. At Cummins, our broad portfolio of advanced clean diesel engines meets the most stringent emission standards in the United States. Diesel engines work on the same basic principles as an internal combustion engine, but they do the work differently. Let's take a closer look. The story of the diesel engine actually begins with the invention of the gasoline engine. Traditionally road vehicles (cars, buses, and trucks) have used diesel and petrol engines with a mechanical or hydraulic transmission system. In the latter part of the 20th century, vehicles with electrical transmission systems (powered by internal combustion engines, batteries, or fuel cells) began to be developed—one advantage of using electric machines is that specific types can
The beefy starter cranks the engine over, while fuel injectors build pressure and spray atomized diesel fuel into the combustion chamber. Once the air inside the combustion chamber reaches 480 °F due to compression, diesel fuel ignites from the heat and the engine starts running. Usually, diesel engines take less than a second to start.
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