Direct-injection engines were introduced with a promise that sounded ideal: more power, better fuel efficiency, and cleaner emissions, all from a more precise way of delivering fuel. On paper, the ...

At ConExpo 2023, Liebherr presented a hydrogen direct injection solution for heavy-duty combustion engines. With this technology, the company aims to achieve maximum power density equal to the one of ...

Automobile engines have undergone tons of changes over the years, primarily to make them more efficient. For the most part though, engine changes result from a string of iterative improvements on ...

A new experimental study shows that overlapping diesel pilot and natural gas injections in a heavy-duty HPDI engine raises ...

What is gasoline direct injection and how is it different from traditional methods of getting fuel into your car's engine? You may have read or heard one of your favorite Car Tech editors talking ...