1 ENGINE
[5]
FUEL
SYSTEM
(1) Fuel Line
B1700·B2100·B2400 WSM,11770
6
...-.
---
(1)
Fuel
Tank
(2)
Fuel
Filter
(3)
Injection Pump
(4)
Injection Pipe
(S)
Injection Nozzle
(6)
Fuel
overflow
Pipe
(7)
Fuel
Feed
Pump
3
0343F110
Fuel
from the fuel tank (1)
passes
through the fuel
filter
(2), and then enters the injection pump
(3)
after
impurities
such
as
dirt, water, etc. are removed.
The
fuel pressurized by the injection pump
to
the
opening pressure (13.73
to
14.71
MPa,
140
to
150
kgf/cm
2
,
1991
to
2062
psi),
of
the injection nozzle
(5)
is
injected
into
the combustion chamber.
(2) Fuel Filter
/
,I
2
}----+-f.1
Part
of
the fuel fed
to
the injection nozzle
(5)
lubricates the moving parts
of
the plunger inside the
nozzle, then returns
to
the fuel tank through the fuel
overflow pipe
(6)
from the upper part
of
the nozzle
holder.
Type
of
filter
element
Accodion-pleated paper type
Material
of
filter
element
Cotton
fiber
Filter
mesh
10
to
20,um
400
to
800
,uin.
The
fuel
filter
is
installed between the fuel tank
and fuel
lift
pump, and
serves
to
remove
dirt
and
impurities from the fuel.
Fuel
from the fuel tank enters the outside
of
the
filter
element
(9)
and
passes
through
the
filter
element
under
its
own
pressure.
As
it
passes
through, the
dirt
and impurities
in
the
fuel
are
filtered out, allowing only clean fuel
to
enter
the
interior
of
the
filter
element.
The
fuel exits from the
oL{tlet
of
the cock body
(6)
and
is
sent
to
the fuel
lift
pump.
0339FS03
(1)
Cock
Body
(2) Filter Element
(3)
Filter
Cup
(4)
Retaining
Ring
(S)
Fuel
Cock
1-M12
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