Fuel Injector

The injector is of the solenoid actuated constant-stroke type, consisting of a solenoid, plunger, needle valve and housing. When current is applied to the solenoid coil, the valve lifts up and pressurized fuel fills the inside of the injector and is injected close to the intake valve.

Because the needle valve lift and fuel pressure are constant, the injection quantity is determined by the length of time that the valve is open (i.e., the duration the current is supplied to the solenoid coil). The injector is sealed by an "O" ring and seal ring at the top and bottom.