Injecting fuel directly into the combustion chamber, however, lets the engine use a higher compression ratio without fear of early detonation as the fuel actually acts to cool the chamber. That can ...

Direct injection to the rescue. When a conventional fuel injection systems squirt atomized fuel into the combustion chamber, it does so at a pressure of about 120 pounds psi (per square inch ...

Diesel truck owners often look for ways to get better fuel economy, add torque, and reduce emissions. One modification that’s ...

Gasoline direct injection is one of those technologies that make you think, "Why the heck didn't they figure this out sooner?" It's a simple fix to the regular old combustion engine, and it saves ...

One of the defining features Audi engines is TFSI, featured in a plethora Audi models. Combining turbocharging and direct ...

Direct injection motors are the new cool kids on the block and it’s becoming more an more ... This type of injection has the injector nozzle spraying directly into the combustion chamber, ...

As the name implies, direct fuel injection (sometimes referred to as gasoline direction injection), injects fuel directly into the combustion chamber, rather than into the intake manifold runners ...

Powertrain experts have been touting gasoline direct-injection engines for many years. As has been the case with automated cars and carbon-fiber construction, the passage of time hasn't brought ...

Gas direct injection is the latest frontier in the search for cleaner emissions, more MPGs, and even higher power levels. ... Since DI puts the fuel directly into the combustion chamber, ...

To mark the occasion, we have begun development of the direct injection 16X, a 1600 cc (800 cc x 2) powerplant with a new trochoid chamber shape aimed at further improving thermal efficiency and ...

After all, the combustion chamber needs to accommodate the DI injector as well as the spark plug. With their symmetrical chambers, four-valve DOHC engines seem to be best suited to DI.

Direct injectors have to seal the thousands of PSI from the combustion chamber. If direct injector seals leak, compression leaks out and you lose serious power. So rubber O-rings won’t cut it.