The basic difference between direct injection (DI) and the port-fuel injection (PFI) systems we've become familiar with since the mid-1980s is that PFI sprays fuel into the intake manifold (behind ...

You can clean fuel injectors with pour-in fluids and ultrasonic cleaners, but they probably don't need it unless they're ...

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 ...

If you flip through the list of features on just about any new car or truck, you’re likely to see the words “direct fuel injection,” or DI. The concept is straightforward enough -- engineers have ...

SAE Transactions, Vol. 104, Section 3: JOURNAL OF ENGINES (1995), pp. 112-127 (16 pages) A computer model solving the 1-D flow in a typical fuel injection system for direct-injection diesel engines is ...

Sandia National Laboratories researchers (left to right: Nathan Harry, Christopher Nilsen, Drummond Biles, and Charles Mueller) show off their prototype of ducted fuel injection module for diesel ...

Direct-injection engines are pretty common in new cars these days, but how exactly do they work? Well, this explainer video put together by the YouTubers at SavageGeese gives us an in-depth look at ...

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 ...

Gregg Petersen's Hilborn-injected Chevette. The first thing you should understand is that direct-port, constant-flow fuel-injection—Hilborns, En-derles, Crowers, whatever—were never designed, nor ...

Times are a-changin’, folks. 2010 was twelve years ago, and a lot of the affordable used performance cars available today are more technologically advanced than ever. And none of those technologies ...

SAE International Journal of Engines, Vol. 13, No. 1 (2020), pp. 77-92 (16 pages) At gasoline direct injection, light-duty engines operated with homogeneous, stoichiometric combustion mode, ...