VM Motori R754EU5 Instructions Pour L'emploi page 74

main components R754TE4 - IE4 - ISE4
A) Cooler: cools the engine oil by heat
exchange with the coolant fluid.
GB
B) Turbo device: Made up of a turbine
which exploits a part of the exhaust gas
energy to carry out the engine turbochar-
ging.
C) "EGR" valve: modulates the recircula-
tion of exhaust gasses before they flow
into the suction manifold.
D) "waste-gate" valve: It controls the
turbo device activation, depending on the
pressure of the exhaust gases (only for
R754IE4).
E) Heat expansion valve: It adjusts the
water temperature according to the engi-
ne working temperature
F) Fuel filter: It traps any impurity
G) Oil filter: It traps any impurity
H) Oil sump: It contains the engine lubri-
cation oil
L) Suction manifold: conveys the combu-
stion air into the combustion chamber.
m) Water pump: feeds the cooling circuit
N) Driving belt (type Poly-V): it starts
service devices, the alternator (Q) and the
water pump (M).
P) Automatic belt tightener: it keeps the
belt constantly tightened.
Q) alternating current generator: It pro-
duces and regulates the electric system
voltage
R) Starter: It is used to start the engine
S) Exhaust manifold: It is used to expel
the combustion gases
U) high pressure injection pump: It feeds
the injectors with fuel under pressure
V) Injector: injects pressurised fuel into
the combustion chamber.
English
R750EU5 - IE3 - TE4 - IE4 - ISE4
W) Antiparticulate filter: this is installed in
the engine exhaust pipe conduit. It serves
to retain the particulate so as to reduce
the emissions from diesel engines, which
are responsible for atmospheric pollution.
X) Air filter: for engine intake.
The air is filtered over 3 phases: in the
cyclone pre-separator , in the main filter
and in the safety filter.
Y) Debimeter: it detects the air mass that
feeds the engine.
Z) Rail: stores pressurised fuel and distri-
butes it to the injectors.
0 Ed.8 / 0-202