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 ...

Cost and complexity are discouraging Hyundai from applying direct injection to small engines. Direct injection reduces fuel consumption and emissions and in some applications boosts engine performance ...

Injector deposits arise from incomplete combustion, thermal cracking and interactions of fuel components under high temperature and pressure within internal combustion engines. These accumulations ...

However, not all innovations are equal, and nor do they follow a constant upward trend. Instead, their evolution takes the form of an S-shaped curve that reflects their typical lifecycle from early ...

The study reveals the mechanisms behind wall film formation, a key contributor to particulate matter emissions under cold fuel conditions The growing concerns about air pollution and its harmful ...