The englne
fll+erlng system for +hs lnle+ alr
mosfly
conslsts of the
cyclone acilng as
pre-
Jl lter
and
+he
oaoer-€lemeni
fllter
as
fhe maln
Jllfer.
In the cvclone the
lnlet alr
ls made to
whlrl,
whlch separaies riosf
oi the lmpuriiles
and
collects ihem
Inlo +he dust contalner. The
paper
fllter
has
eliher
one or iro replacoable
car+rldges
rhlch aro
pleated
to ob+aln an
adequaie
fllfsrlng areo
6nd equlpped wlfh a
rEta
I support.
The
lmpurlfles
In the Inlet
alr
accumulaie on
fhe
ouier
surfaco of the
carirldge from
whlch
ihey
can €aslly
be
removed.
The Innor fllfer or
the
so-called safe+y
glenlen+
prevenis
ihe
lmpurlflss
from
gefflng
lnto the €nglne, ll the
prlnary
llltsr
becomes
clogged
or
lf
ihe fllter
assemb ly
ls
fau
l+y.
A
mechanlcol o|-
elec+rlcal se.vlce
Indlcaior
can be mounled
on +ho lllier
houslng
or on the
Inlef plpe
io
show rhen ihe fl lter
cartrldge
Is
clogged.
The
lnlei
system also comprlses the
plplng
betwe€n ihe
alr fllter and
ihe
iurbo,
the plplng
b€+'reen
the
turbo
and fhe
lnlet
manlfold
and +he Inlet nanltolo.
The turbo
tlxed on top
of lhe exhausl'
manlfold
on at lis
r€or end
gets
lts lubrlcal'lon from
the
englns
pressure
lubrlcal-lon
sysj'om through
the
prossure
plpe
and the ol I
return
plpe.
The marlne
englnes are furnlshod vrlih
a
wai-er-
c@led exhaust manlfold
rhlch
ls
connocled to
ths
engln€
coolani clrcula+lon
('rfresh
raier
c I
rcu
lailon),
opercf lon ot th€ turbchrgcr
engl ncs )
The
englnes
höve an exhaust charger,
l.e. 6
iurbocharger where
par+
of ihe energy of the
exhaust
gasos
ls utlllzed io
gef
npre
alr lnto
ths cyllndsrs.
The turbo ls flxed dlreclly
io
ths
top of the
exhaust manlfold or to
lis 196r
end.
The
energy
of the exhaust
gases
rotaies
ihe furbine
trheel ot ihg iurbo rhlch
drlves the
iurbo rotor
at ihe o+her end of ihe
shaf+. Th9
iurnlng turbo roior
boosis
pressurlzed
alr
lnto
fhs cyllnders.
Thls
nEans ihat iherg
ls o
lörger arnouni
of alr In the cyllnders lhan
normally and lhus rrore tuel can be
combusted
6nd
Increasod
ouiput
c6n bo achleved. As +he
englne
exhausf gases
drlve the +urblne rheel,
ih€ +urbo
autornatlcally
odJusts
io
th€ englne
load and spe€d.
Ths
-turbo
shafl
have bearlnqs tlxed to the
bsarlng houslng wlih
tro so-called
tloailng
bushlngs. These bushlngs
are lubrlc6ted and
cooled
+h.ough
the
englne
pressure
lubrlcailon
sys+em.
The
seallng rlngs
of
plsfon
rlng
type
provent
oi I loaks
trom
+he
bearlng
houslng.
EOOST AIR
I
iITER@OLER
(DSJ
cng l nos
I
Boost
air
Coolant
I
The
(DS
€
\r-J
:
IMUILIIA
PAKO
KAASUT
VOITELUÖ
LJY
The englnes
rlih iype
d€slgnatlon DSJ
ore
equlpped rlth
alr-+o-rater
boosi
alr lnier-
coollng.
The cool
Ing
slements
are
encased cnd
Jolned
v,lth
the Inlet manlfold
and
connec+ed
io
the eng I
no
coolani
clrculöl-lon.
In
ihe
c@l
ln9 el€monts the
compressed
Inlot
ölr c@ls
doxn,
havlng a
greatar
denslty
and
npre
oxygen
rhlch ls
negded for the
combus on.
8-2
a2
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