93
94
95
Injection Nozzle
Plunger & Barrel
Intensifier Piston
F U E L M A N A G E M E N T S Y S T E M
44
• When the spool valve is in the open position,
high pressure oil is allowed to enter the
injector and pushes the intensifier piston and
plunger downward.
• Since the intensifier piston is 7.1 times
greater in surface area than the plunger, the
injection force is also 7.1 times greater at
the plunger than what the injection control
pressure (ICP) is.
• The bottom of plunger and barrel of the
injector is where the fuel injection pressure
is built.
• When the plunger is pushed downward by
the intensifier piston, it increases the fuel
pressure in the barrel 7.1 times that of the
ICP pressure.
• The plunger is coated with a tungsten
carbide coating to reduce the possibility of
scuffing and poor performance.
• The injection nozzle needle is an inwardly
opening type which lifts off its seat when
pressure overcomes the VOP (Valve
Opening Pressure) of approximately 3100
psi.
• Fuel is atomized at high pressure through
the nozzle tip.
INTENSIFIER PISTON
BARREL
PLUNGER
PINTLE
Summary of Contents for 6.0L POWER STROKE
Page 1: ... F Series Super Duty ...
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Page 6: ...1 Direct Injection Turbocharged Diesel Engine 6 0L Power Stroke ...
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Page 91: ...W I R I N G D I A G R A M S I N G L E A LT 90 ...
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Page 94: ...W I R I N G D I A G R A M D U A L A LT 93 ...
Page 104: ...N O T E S 103 ...
Page 105: ...N O T E S 104 ...
Page 106: ...2002 International Truck and Engine Corporation Printed in the U S A ...