The role of fuel injector plays in the engine It seems that the fuel injector like a solenoid valve,and it will take its functions by the following steps: 1.When there is current in the solenoid,there will create the power which can help to open the needle valve, then open the orifice. 2.The oil spray fast through the pintle on the needle valve top and the annular space between the orifice. 3.The oil be sprayed will become the fog-type and combustion sufficient finally. Fitment for .
