.`3
R-.
R-.
Cl.
Cl.
'Q'
w.,
a..
OPERATION
N° MA.IE.
144
-
00
Characleristics of
the «
L-Jetronic » electronic
fuel injection
systern.
FUEL CIRCUIT
A multiple roller-valve pump (2) draws the
fuel
from
tank (1) ond provides the injection pressure.
A filter
(4)
is fitted to
the system.
In
the
fuel return
pipe, the pressure regulator
(3) maintains, under fuel bad, a relative
constant
fuel pressure
of
2 bars (29'psi
).
The prssure regulator
is connected to
the
intake
manifold
by
a flexible
pipe. This
albows the
difference of
pressure
between
the fuel and the
inlet
manif old
to remain constant.Thus
the necessary quantity
of
fuel delivered
by
the
injectors (5) depends exclusively
on its
duration
of
opening.
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