IWP189 Fuel Injector 510cc/min 12 hole

The IWP 189 “Pico" top feed injector is a standard production component, tested and selected for racing applications.

The characteristics of the injector are a fast pulse response, high precision, high dynamic range and optimum fuel atomisation. These are achieved by a high performance ON-OFF actuating electromagnet with opposing expansion poles that moves an internal injector valve on highprecision ground cylindrical slides, and a high precision nozzle.

The injector has a stainless steel body, a fuel-resistant plastic connector, martensitic stainless steel internal valve and an electromagnet with a low carbon content stainless steel armature.

The electrical connection to the control unit is via a Mini-Timer plastic plug.

Technical data

Performance

Static flow

@ 300 kPa................................510.2 cc/min

@ 400 kPa................................588.9 cc/min

@ 500 kPa................................658.4 cc/min

Linearity range (Tj = 2 ms) ....................± 3.0 %

Linearity range (Tj = 4 ms) ....................± 1.5 %

Spray angle (80% of spray)........................25 °

Max. fuel pressure allowed.......................500 kPa

Maximum duty cycle...................................90 %

Operating temperature range ............-30÷110 °C

Vibration (peak)..........................................30 g

Test conditions

Fluid ......................................... N-Heptane

density (@ 20°C)...................... 0.684 kg/litre

Ambient and fluid temperature................... 23 °C

Power supply............................................. 14 Vdc

Injection frequency .................................. 100 Hz

Pulse duration ...................................... 2.500 ms

Mechanical Characteristics

Height .................................................. 47.2 mm

Outside diameter (connector excluded) .. 15.3 mm

Weight ...................................................... 35 g

Electrical Characteristics

Connector........................... Mini-Timer 2 way

Power supply....................................... 8 ÷ 16 Vdc

Resistance.............................................. 14.5 Ω

inductance (at 1 KHz) ............................. 11.9 mH

Driver type ....................................... ON-OFF