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ENGINE
58
INJECTOR
Injectors
Solenoid operated Injectors capable of fuel injection
at very high pressures with desired quantity and
with desired injection advance. Injector is clamped
with a claw.
Type
: 4 x DFI 1.3
Technical description
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Maximal pressure in normal operating
conditions: 1600 bars
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minimal operating delivery : 0.8 mg/str. at
230 bar
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injector control current : 16pull-6hold A,
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multiple injection capability : timing between
two successive injections : down to 200 ms
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electrical connection : FCI 2 ways connector
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Nozzle: Micro-sac or VCO extended guide short
protrusion
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Protection: inlet, outlet and nozzle plug.
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Timing between 2 successive injections – 200
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1 Pilot, 1 Main
Product Description
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Servo valve principle
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Solenoid actuator (Solenoid valve Control)
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200 - 1450 Bar operating pressure
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pilot quantity 1-3 mm^3
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Very good shot to shot performance
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Extremely fast response
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Low leakage system
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Capable of multiple injections
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Low return flow, eliminates the need for fuel
cooler
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Low combustion noise due to accurate pilot
control
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High part to part consistency
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Microsac nozzle for Euro-III
Precautions
Injectors not to be inter changed in field during
service since individual injector characterization is
different and I2C no. of each injector is fed to the
ECU during engine assembly.
The Injectors have to be removed in case of the
following reasons
1. Compression pressure in each cylinder needs to
be checked for any possible reason like high
engine oil consumption, high blow by, low
power and pickup.
2. In case cylinder head has to be removed and
disassembled.
3. If Injectors are damaged due to dust entry in
the high pressure fuel system. In this case
replace the injectors.
I2C