MANN + HUMMEL ProVent
MANN+HUMMEL Industrial Filters
7
4.2 Requirements for installation location
Connection of outlet fitting with closed
crankcase ventilation system
The outlet fitting (8) is connected to the
engine intake section with a (hose) line (after
the air filter, but before the turbocharger, if
present).
The intake vacuum present when a closed
system is operating sucks the blow-by gas via
the ProVent system and routes the cleaned
blow-by gas back into the engine intake
section.
When selecting the point of installation, the
type of oil return must be taken into account
(see 4.3 ff.)
Connection of outlet fitting with open
crankcase ventilation system
The outlet fitting (8) remains open. The
cleaned blow-by gas flows out of the outlet
fitting (8) into the surrounding area.
Exiting blow-by gas may be hot. It
must be ensured that the existing
blow-by gases do not endanger
persons or objects.
The ProVent system can be mounted on the
engine or the frame of the machine/vehicle with
the holder (5).
The arrow on the ProVent housing marks the
direction of flow of the blow-by gas from the
inlet to the outlet.
The highest possible point above the engine oil
level (or, if present, above the non-return valve
of the oil return line) must be selected as the
installation location for the ProVent housing.
Minimum distance from surface of oil (or non-
return valve) to oil return (6) of ProVent
housing: at least 350 mm.
Connecting inlet fitting
The blow-by gases flow through a (hose) line
from the crankcase via the inlet fitting (7) into
the ProVent system.
Experience shows that optimum gas removal
points from the crankcase are in the areas in
which there are no moving parts and little oil
spray, e.g. the upper areas of the crankcase or
the cylinder-head cover.
This opening on the crankcase must be
connected to the inlet fitting (7) of the ProVent
system.