Iveco N60 ENT M37, Technical And Repair Manual, Page: 26 / 194

Gear Pump
1. Gear oil pump - 2. Crankshaft with driving gear oil pump.
Filter bracket
1. Heat exchanger with engine coolant - 2. Oil delivery to
internal engine machine members - 3. Flow recirculated by
pressure regulator valve. - 4. Delivery to nozzles piston
cooling - 5. Flow inlet from the pump. - 6. Flange coupling
onto crankcase - 7. Oil filter - 8. Oil for turbocompressor
lubrication connector outlet.
On the rest the seating for the pressure valve adjustment
and the by-pass valve are machined. The ducts machined
inside enable to divert the oil inside the engine crankcase to
the different lubrication functions. The filter, single cartridge,
is two-stage with 5µm parallel filtering.
Oil vapour recirculation
1. Condensate oil to the sump. - 2.Vapours coming from
the timing gear box - 3. Oil vapour filter unit - 4. Flow
limiter valve - 5. Residual vapours to engine intake -
6. Centrifugal separator.
The oil vapours which generate inside the engine, go through
the centrifugal gas separator machined in the upper part of
the rocker lid, where some of them condensate and return
to the oil sump through the dedicated ducts.
Residual vapours, due to higher pressure are pushed to the
timing gear box and from there to the filter unit. In the unit
there are two filtering cartridges operating in parallel con-
densating a further vapour part that returns in liquid form to
the oil sump.
The part which is not condensated is sent to the engine
intake by a gauged hole after the air filter.
The vapour maximum load intaken by the engine is adjusted
by the action of a membrane valve located in the filter unit.
N60 ENT M37 OVERVIEW
1.26
APRIL 2004
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Figure 29
Figure 30
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Figure 31
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Oil vapours Oil condensate
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