If you think direct-injection diesel engines made their debut in the 1980's, think again. The first diesel without extra ...

Automakers have long touted the benefits of fuel injection, claiming increased efficiency and power. But as more cars have the system installed (around 73% in 2023), more and more consumers are ...

Diesel engines lack the spark of gas engines, both literally and figuratively. They don't need a spark plug since they ignite the fuel using only compression, but also lack the 'je ne sais quoi' that ...

Direct injection engines deliver fuel at high pressure directly into the combustion chamber. When the fuel spray strikes surfaces such as the piston crown or liner, a thin liquid film forms. This film ...

Flash boiling occurs when liquid fuel under high pressure enters an environment whose pressure lies below the liquid’s saturation pressure, driving rapid vapour nucleation and explosive atomisation.

A cutaway image of a direct-injected BMW engine - Ton1~commonswiki/Wikimedia Commons Until the early 1990s, many gasoline engine designs relied on carburetors to produce the fuel-air mixture needed to ...