China-based Weichai Power’s WP15 hydrogen direct-injection engine has qualified under the China VI vehicle ...

Weichai Power (HKG:2338) announced that its independently developed WP15 hydrogen direct‑injection engine for heavy-duty vehicles has successfully passed the full China VI vehicle emission ...

Direct-injection engines were introduced with a promise that sounded ideal: more power, better fuel efficiency, and cleaner ...

The other day I dropped my car off at a European specialist shop, and while I was there, a technician was working in the engine bay of a Mk7 Golf R, cleaning out carbon deposits off the intake valves.

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 ...

Port fuel injection (PFI) was a major milestone in the early '80s. The integration of PFI rapidly changed the way fuel was delivered by increasing fuel economy and improving engine performance. Even ...

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.

Until the early 1990s, many gasoline engine designs relied on carburetors to produce the fuel-air mixture needed to make the power that makes a car move. However, as the regulations around fuel ...

Direct injection petrol engines produce 1000 times more particles than older engines: study An environmental lobby group in Europe has criticised car makers for failing to fit particulate filters to ...