Second, according to the fuel injection mode Category:

       A continuous jet, also known as mechanical jet, nozzle when the engine is running at constant fuel injection, and injection quantity is controlled by varying the supply pressure to achieve.

       2, jet program, the use of electronic fuel injectors, the fuel injection nozzle when required coil is energized, because the magnetic force of the plunger and raise up the injector nozzle can.vw passat 1.8 turbocharger Fuel injection quantity is controlled by the length of the fuel injection time, in microseconds (ms).

       Due to mechanical injection is an outdated design, so far, almost all types of vehicles on the market using the efficiency and economy better jet program. The single point of injection in addition to lower prices, simple structure, but also without any comparable multi-point injection and place, and it comes with a lot of the same disadvantages and carburetor (low efficiency of each cylinder uneven distribution of oil and gas), passat 1.8 turbocharger and therefore multi-point injection (MPI) can be said to be the mainstream of modern jet fuel supply system.


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