Direct is designed to low emissions and should allow for higher performance due to better atomization and a more accurate air/fuel mixture.
DI means Direct Injection. Diesel engine depending on combustion categorised in Direct injection or InDirect injection Engine. Direct Injection engine combustion takes place directly above the piston. But indirect injection combustion initially takes place pre-combustion chamber and after transfered to above piston.DI engine more fuel efficient, easily start in cold condition, But Noise more.
The Powerstroke was introduced in 1995, the difference is direct injection. The pre1995 engines were indirect injection
Yes, the indirect injection is more fuel efficient because it provides stability to the engine.
A direct injection engine injects fuel directly into the combustion chamber where non-direct systems inject into a burn chamber to lower stress on the the engine internal components.
A 1996 Punto 55 uses a single point (non-direct) fuel injection system. Later models adopted a multi-point injection system but none of the Fiat 1.1 engines use direct injection.
Variable direct injection system i believe .
I assume you mean in a diesel engine? The engine is made with a very high compression ratio, much higher than a gas(petrol) engine. The fuel is injected as a spray at the right time in the engine stroke cycle, and the high compression instantly heats it to ignition, providing the power stroke of the engine. Engines can be made with indirect or direct injection. The latter are now almost universal in small auto engines. The older indirect engines required a preheat of the fuel to start and were less efficient. The direct injection type start instantly without preheat. Older direct injection engines were noisy but electronic control of the injection has now enabled quiet and smooth auto engines which are very popular in Europe because fuel consumption is much lower than with gas(petrol).
6.2L idi (indirect injection) not the best diesel trucks..
Complexity and expense
Its Linear Direct Injection Engine
it is called common rail
Most modern diesels use direct injection at very high pressures.