FUEL INJECTOR CONSTRUCTION/OPERATION


BHE011413250T02

1
Coil
2
Needle valve
3
Spring

Fuel Injector (FP1, RP1)

• Installed on the intermediate housing at an angle of approx. 45°, and injects fuel near the intake port opening.

• Mainly consists of a coil, spring and needle valve.

• Fuel injector with 12 injection holes and injection angle of approx. 30° adopted to enhance fuel injection vaporization.

• When a PCM signal is sent, exciting current passes through the coil, pulling in the needle valve and injecting fuel.

• The amount of injection is determined by the open time of the needle valve, i.e. the energization time of the coil.

Fuel Injector (FP2, RP2, FS, RS)

• Installed on the intake manifold.

• Mainly consists of a coil, spring, and needle valve.

• Injects fuel into the intake manifold at an angle of approx. 19°, so that the fuel is drawn into the housing together with intake air.

• When a PCM signal is sent, exciting current passes through the coil, pulling in the needle valve and injecting fuel.

• The amount of injection is determined by the open time of the needle valve, i.e. the energization time of the coil.