DIESEL
ENGINE
05
SERIES
WSM,
01640
E
FUEL SYSTEM
[I]
GENERAL
(1)
FuelTank
(2)
Fuel Filter
(3)
injection Pump
(4)
lnjectlon Pipe
(5)
lnjectlon Nozzle
(6)
Fuel Overflow Pipe
(7)
Fuel Feed Pump
31640F10540
I
Fuel from the fuel tank
(1)
passes through the fuel Part of the fuel fed to the injection nozzle
(5)
filter
(2),
and then enters the injection pump
(3)
after lubricates the moving parts of the plunger inside the
impurties such as dirt, water, etc. are removed. nozzle, then returns to the fuel tank through the fuel
The fuel pressurized
by
the injection pump to the overflow pipe
(6)
from the upper part
of
the nozzle
opening pressure
(1
3.73
to
14.71
MPa, 140
to
150
kgf/ holder.
cm2,
1991
to
2133
psi), of the injection nozzle
(5)
is
injected into the combustion chamber.
[2]
INJECTION
PUMP
I
~11900F10150
M-25
119OOM10151
A
Bosch
MD
type mini pump is used for the injection
pump.
It
is small, lightweight and easy to handle.
The plunger
(7)
with
a
left-hand lead reciprocates via
the tappet roller
(2)
by means of the fuel camshaft,
causing the
fuel
to be delivered into the injection nozzle.
(1)
Control Rack
(5)
Delivery Valve
(2)
Tappet Roller
(6)
Cylinder
(3)
Dumping Valve
’
(7)
Plunger
(4)
Delivery Valve Holder
11900M10170
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